Schneider Electric PL7 Junior/Pro - Premium PLC Application - Specific Functions Counting User Guide

PL7 Junior/Pro
Premium PLC ApplicationSpecific Functions
Counting
35002677 00
TLX DS 57 PL7 40E eng V4.0
2
Related Documentation
Related Documentation
At a glance
TLX DS 57 PL7 40E 09/2000
This manual consists of 8 volumes:
l Volume 1
l Shared task functions
l Discrete task
l AS-i implementation
l Dialog operator task
l Volume 2
l Upcounting Task
l Volume 3
l Axes command task
l Volume 4
l Step by step axes Command task
l Volume 5
l Electronic Cam task
l Volume 6
l SERCOS Task
l Volume 7
l Analog Task
l PID Control Task
l Weighing Task
l Volume 8
l Regulation Task
3
Related Documentation
4
TLX DS 57 PL7 40E 09/2000
Table of Contents
About the book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Chapter 1
Introduction to the application-specific Counting function . . 11
General introduction to the counting function . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Chapter 2
2.1
2.2
2.3
Chapter 3
3.1
3.2
3.3
Introduction to operation of data modules TSX CTY2A,
TSX CTY4A and TSX CTY2C . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General on the TSX CTY2A/4A and TSX CTY 2C modules . . . . . . . . . . . . . . . .
Introduction to the TSX CTY2A, TSX CTY4A and TSX CTY2C modules . . . . . .
Principle functions of the TSX CTY2A and TSX CTY4A modules . . . . . . . . . . .
At a glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction to the TSX CTY 2A and 4A modules . . . . . . . . . . . . . . . . . . . . . . . .
Introduction to an up counting or down counting channel . . . . . . . . . . . . . . . . .
Operating in up counting or down counting. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction to an up counting/down counting channel (TSX CTY 2A/4A) . . . . .
Operating in up counting/down counting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main functions of the TSX CTY2C module . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction to the TSX CTY2C module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction to an up counting/down counting and measurement channel . . . .
Operating in up counting/down counting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating in speed measurement mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13
15
15
16
16
17
19
21
22
24
25
25
26
28
30
31
Description of the standard functions of the TSX CTY2A,
TSX CTY4A and TSX CTY2C counting modules . . . . . . . . . . . 33
At a glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction to functions associated with counting modules . . . . . . . . . . . . . . . .
Introduction to input configurations and functions associated with counting. . . .
Description of counting module input interfaces . . . . . . . . . . . . . . . . . . . . . . . . .
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description of counting input interfaces (TSX CTY 2A / 4A / 2C) . . . . . . . . . . . .
Specialized interface for an absolute encoder (TSX CTY 2C) . . . . . . . . . . . . . .
Description of the capture function in counting modules. . . . . . . . . . . . . . . . . . .
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33
35
35
38
38
39
42
44
44
5
3.4
3.5
3.6
3.7
3.8
3.9
3.10
Chapter 4
Capture function for data module counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Capture, TSX CTY 2C module specific features . . . . . . . . . . . . . . . . . . . . . . . . . 47
Description of the preset and reset function in counting modules . . . . . . . . . . . . 48
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Introduction to the preset/reset function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Preset in downcounting mode (TSX CTY 2A/4A) . . . . . . . . . . . . . . . . . . . . . . . . 50
Resetting when counting (TSX CTY 2A/4A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Preset in up/down counting (TSX CTY 2A/4A/2C). . . . . . . . . . . . . . . . . . . . . . . . 56
Description of the comparison function for counting modules . . . . . . . . . . . . . . . 62
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Introduction to the comparison function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Comparison in counting or down counting (TSX CTY2A/4A) . . . . . . . . . . . . . . . 64
Comparison in up counting/down counting mode (TSX CTY2A/4A) . . . . . . . . . . 65
Comparison in up/down counting and measurement mode (TSX CTY2C) . . . . . 66
Description of switches associated with counting modules . . . . . . . . . . . . . . . . . 67
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Introduction to storing switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Switches in down counting mode (TSX CTY2A/4A) . . . . . . . . . . . . . . . . . . . . . . 69
Switches in counting mode (TSX CTY2A/4A) . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Switches in up/down counting mode (TSX CTY 2A, 4A, 2C). . . . . . . . . . . . . . . . 73
Description of physical outputs associated with counting modules . . . . . . . . . . . 77
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Counting modules physical outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Introduction to modules TSX CTY 2A/4A physical outputs . . . . . . . . . . . . . . . . . 79
Outputs fallback mode for TSX CTY2A/4A modules in the event of a fault . . . . . 82
Introduction to TSX CTY2C module outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Outputs fallback mode for TSX CTY2C modules in the event of a fault . . . . . . . 86
Reactivating outputs after a trip (TSX CTY2A/4A/2C) . . . . . . . . . . . . . . . . . . . . . 88
Description of the speed measuring function for the TSX CTY 2C module . . . . . 91
Overspeed monitoring function (TSX CTY2C). . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Description of the special functions of the TSX CTY 2C counting module . . . . . 93
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Special function number 1 (TSX CTY2C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Special function number 2 (TSX CTY2C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Special function number 3 (TSX CTY2C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Description of how counting modules deal with faults . . . . . . . . . . . . . . . . . . . . . 97
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Introduction to dealing with channel and module faults . . . . . . . . . . . . . . . . . . . . 98
How to deal with an invalid measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Dealing with faults (TSX CTY2C). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Configuration of the TSX CTY2A, TSX CTY4A
and TSX CTY 2C modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
At a glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Description of the configuration screen for a counting module . . . . . . . . . . . . . 104
6
How to configure the counting inputs (TSX CTY 2A/4A). . . . . . . . . . . . . . . . . .
How to configure the counting and measurement inputs (TSX CTY 2C) . . . . .
How to configure an absolute encoder interface (TSX CTY 2C). . . . . . . . . . . .
How to configure the capture of a counting register . . . . . . . . . . . . . . . . . . . . .
How to configure preset or reset in a counting function . . . . . . . . . . . . . . . . . .
How to configure event processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to configure the combined input IEna/Q2 (TSX CTY 2C) . . . . . . . . . . . . .
How to program multiplexing of absolute encoders with parallel outputs . . . . .
How to configure operation on switch to zero or setpoint crossing . . . . . . . . . .
How to configure the behavior of faulty outputs . . . . . . . . . . . . . . . . . . . . . . . .
How to configure a special function (TSX CTY2C) . . . . . . . . . . . . . . . . . . . . . .
Chapter 5
Adjustment of the data modules TSX CTY2A, TSX CTY4A
and TSX CTY2C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description of the adjustment screen of a counting module . . . . . . . . . . . . . . .
How to adjust the offset value of an absolute encoder . . . . . . . . . . . . . . . . . . .
How to adjust the preset value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to adjust channel fault processing (TSX CTY2C) . . . . . . . . . . . . . . . . . . .
How to adjust threshold and set point values . . . . . . . . . . . . . . . . . . . . . . . . . .
How to adjust the speed measurement and monitoring function . . . . . . . . . . .
How to adjust the frequency output period (TSX CTY2C). . . . . . . . . . . . . . . . .
How to adjust the switch change of status conditions . . . . . . . . . . . . . . . . . . . .
Chapter 6
125
126
128
129
130
131
132
133
134
Debugging the data modules TSX CTY2A, TSX CTY4A
and TSX CTY2C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introducing the debugging screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description of the maximized debugging screen. . . . . . . . . . . . . . . . . . . . . . . .
Description of the minimized debugging screen . . . . . . . . . . . . . . . . . . . . . . . .
How to use value or parameter windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to use the LEDs and buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 7
106
107
110
113
114
115
116
117
119
120
122
137
138
139
141
144
146
Diagnostics of the data modules TSX CTY2A, TSX CTY4A
and TSX CTY2C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Displaying fault diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Lists of fault diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Chapter 8
8.1
8.2
Software implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
At a glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Counting module operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How counting modules behave in the different operating modes . . . . . . . . . . .
Event processing installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction to event processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
155
157
157
159
159
160
7
How to program event processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Chapter 9
The counting task’s language objects. . . . . . . . . . . . . . . . . . 165
At a glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Introducing language objects for application-specific counting . . . . . . . . . . . . . 166
Implicit exchange language objects associated with the application-specific counting
function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Details of implicit exchange objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Explicit exchange language objects associated with the application-specific
counting function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Breakdown of objects for user defined exchange . . . . . . . . . . . . . . . . . . . . . . . 177
Explicit object exchange and report management . . . . . . . . . . . . . . . . . . . . . . . 183
Chapter 10
10.1
10.2
Example of the counting application . . . . . . . . . . . . . . . . . . . 187
At a glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Introducing and configuring the example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Introduction to an example of an application . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Configuration of the PLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Programming details for the example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
The application structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Program: preliminary processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Program: sequential processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Program: step 0 of the sequential processing . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Program: step 2 of the sequential processing . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Program: subsequent processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Program: event processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
8
About the book
At a Glance
Document Scope
This manual deals with implementation of tasks (except for communication tasks)
on the Premium/Atrium via the PL7 software.
Validity Note
The update of this publication takes into account the standard functions of the
PL7 V4; nevertheless, it supports implementation of previous PL7 versions.
Related
Documents
User Comments
TLX DS 57 PL7 40E 09/2000
Title of Documentation
Reference Number
Hardware implementation manual
TSX DM 57 40E
We welcome your comments about this document. You can reach us by e-mail at
[email protected]
9
About the book
10
TLX DS 57 PL7 40E 09/2000
Introduction to the applicationspecific Counting function
1
General introduction to the counting function
At a Glance
The counting function is used to carry out fast counting using data modules, PL7
screens and specialized language objects. General operation of the data modules
is described in the Introduction to operation of data modules TSX CTY2A,
TSX CTY4A and TSX CTY2C, p. 13 section and their functions are described in
detail in the Description of the standard functions of the TSX CTY2A, TSX CTY4A
and TSX CTY2C counting modules, p. 33 section.
The physical context in which the counting will be carried out must be defined (rack,
power supply, processor, modules or devices,...) during installation, then the
software must be installed.
The latter is carried out by various PL7 editors:
l either offline,
l or on-line.
Set up principle
TLX DS 57 PL7 40E 09/2000
The table below shows the different installation phases for the application specific
Counting function.
Mode
Phase
Description
Offline
Module declaration
Choice:
l of geographical position: number and slot where
rack-based modules are concerned,
l module type.
Module channel
configuration
Entering the configuration parameters.
Confirming
configuration
parameters
Confirmation at module level.
Global application
confirmation
Confirmation at application level.
11
General introduction
Mode
Phase
Description
Offline or
on-line
Symbolization
Symbolizing the variables associated with the
application specific function.
Programming
Programming the functions that the specific function
must carry out using:
word and bit objects associated with the module and
event processing,
Transfer
Transferring the application to the PLC.
Debugging
and
Diagnostics
Debugging the application using:
l debugging help screens to control inputs and
outputs, to modify the thresholds and set point
values, to trigger events and carry out
initializations,
l diagnostic screens are used to identify faults.
Documentation
Printing different information relating to the
application.
On-line
Offline or
on-line
Note: The order defined above is given as an indication. The PL7 software can use
editors interactively in any order you wish (however you cannot use the data or
program editors without configuring the counting module first.)
12
TLX DS 57 PL7 40E 09/2000
Introduction to operation of data
modules TSX CTY2A, TSX CTY4A
and TSX CTY2C
2
At a Glance
Subject of this
chapter
This chapter describes the operating principles of the TSX CTY2A, TSX CTY4A and
TSX CTY2C data modules.
What’s in this
Chapter?
This Chapter contains the following Sections:
TLX DS 57 PL7 40E 09/2000
Section
Topic
Page
2.1
General on the TSX CTY2A/4A and TSX CTY 2C modules
15
2.2
Principle functions of the TSX CTY2A and TSX CTY4A
modules
16
2.3
Main functions of the TSX CTY2C module
25
13
CTY2A/4A and CTY2C data module operation
14
TLX DS 57 PL7 40E 09/2000
CTY2A/4A and CTY2C data module operation
2.1
General on the TSX CTY2A/4A
and TSX CTY 2C modules
Introduction to the TSX CTY2A, TSX CTY4A and TSX CTY2C modules
At a glance
The TSX CTY2A, 4A and 2C modules are counting modules made for the whole
range of Premium modular PLCs. As such, they support all the operations of the PL7
software.
These modules have available:
l functions for offloading tasks directly linked to the counting (comparisons,
captures, presetting or resetting to zero, error detection, etc.) from the processor,
l functions for generating events for the application program,
l Configurable discrete outputs in reflex outputs, adapted to rapid actions.
These modules constitute a range to the varied characteristics, adapted to the
different situations met in the industrial monitoring.
Main
characteristics
The main characteristics are as follows:
Type
Functions
TSX CTY 2A
TSX CTY 4A
Number of
physical
outputs per
channel
Maximum
frequency
(kHz)
Upcounting,
2
downcounting,
upcounting/downcounting.
1 or 2
(according to the
function)
40
Upcounting,
4
downcounting,
upcounting/downcounting.
1 or 2
(according to the
function)
40
4
1000
TSX CTY 2C Upcounting/
downcounting, speed
measurement/monitoring.
Number of
channels per
module
2
The TSX CTY 2A and 4A modules are functionally identical. Only their number of
channels is different.
TLX DS 57 PL7 40E 09/2000
15
CTY2A/4A and CTY2C data module operation
2.2
Principle functions of the TSX CTY2A
and TSX CTY4A modules
At a glance
The subject of
this section
This section describes the principle operations of the TSX CTY2A and TSX CTY4A
modules.
What’s in this
Section?
This Section contains the following Maps:
Topic
Page
Introduction to the TSX CTY 2A and 4A modules
16
17
Introduction to an up counting or down counting channel
19
Operating in up counting or down counting
21
Introduction to an up counting/down counting channel (TSX CTY 2A/4A)
22
Operating in up counting/down counting
24
TLX DS 57 PL7 40E 09/2000
CTY2A/4A and CTY2C data module operation
Introduction to the TSX CTY 2A and 4A modules
Description
The TSX CTY 2A and 4A modules support upcounting, downcounting, or
upcounting/downcounting pulses. They have the following functions available:
l confirmation (See Introduction to an up counting or down counting channel ,
p. 19),
l capture (See Description of the capture function in counting modules, p. 44)
(in upcounting/downcounting),
l preset or reset (See Description of the preset and reset function in counting
modules, p. 48),
l comparisons (See Description of the comparison function for counting modules,
p. 62),
l storing transient events using two counter outputs (See Description of switches
associated with counting modules, p. 67),
l two physical outputs (See Description of physical outputs associated with
counting modules, p. 77),
l event processing (See Event processing installation, p. 159).
These modules are the same, except for the number of channels:
l TSX CTY 2A: 2 channels,
l TSX CTY 4A: 4 channels.
TLX DS 57 PL7 40E 09/2000
17
CTY2A/4A and CTY2C data module operation
Illustration
The diagram below introduces the global structure of a channel. According to the
selected function (upcounting, downcounting or upcounting/downcounting), some
operations cannot be active.
EVT
processing
Preset value
&
IPres/IReset
physical input
Configu
ration
&
>1
Preset/reset
register
SET
Q
RESET
Enabling
preset /reset
Counting
physical input
IA, IB, IZ
>1
&
Enabling
event
&
DOWNCOUNTER
/UPCOUNTER
EVT
processing
Counting
input
configuration
EVT
Threshold
values,
setpoints
Configuring
&
>1
&
Capture
register
Reactivating
outputs
Commands and
confirmation of
modes, output
Q1
18
Q
Output
configuration Q0
&
Detecting
errors
Output Q1
configuration
&
Output Q0
Monitoring shortcircuits and tripping
of physical output
&
Switch status 0
Switch status 1
Capture event
Captured value
SET
RESET
Fallback
mode
configuration
Events
crossing thresholds
setpoints
Comparing current
measurement to
thresholds, setpoints
Confirmation
Direct capture
Commands and
confirmation of
modes, output
Q0
Measurement
overrun
Current
measurement
Invalid
measurement
COMPARISON
SET
Q
RESET
SET
Q
RESET
ICapt physical
input
Preset /reset
done
EVT
processing
Direct preset
/reset
IEna physical
input
Enabling
Direct
enabling
Preset /reset
event
&
Output Q1
Capture done
Physical output 0
Short-circuit
error
Physical output 1
TLX DS 57 PL7 40E 09/2000
CTY2A/4A and CTY2C data module operation
Introduction to an up counting or down counting channel
At a glance
This section introduces the functional kernel of a channel, namely the following
blocks:
l up counting or down counting,
l confirmation.
Illustration
The up counting or down counting functional kernel of the TSX CTY 2A or 4A
modules is shown below.
Event
processing
Physical input
enabling IEna
IA counting
physical input
& >1
Measurement
overrun
Up counter or
down counter
Configuring
Enabling
event
Counter
enable active
Enabling
Direct
enabling
&
Current
value
Invalid
measurement
counting inputs
Note
Confirmation (hardware or software) is a special auxiliary function, linked
intrinsically to the up counting or down counting. In fact, without confirmation, there
can be no up counting or down counting. Because of this, contrary to other auxiliary
functions, confirmation is introduced in this section. The associated language
objects are described in the default objects
(See Details of implicit exchange objects, p. 169) part.
Physical input
The up counting or down counting functions alone admit only one physical counting
input, as shown above (the signal is on the IA input).
TLX DS 57 PL7 40E 09/2000
19
CTY2A/4A and CTY2C data module operation
Input
characteristics
This table summarizes the input characteristics of the up counting or down counting
functions, for each channel.
Modules involved
TSX CTY 2A/4A
Main physical input
IA
Confirmation of up counting or
down counting
20
l
l
hardware: IVal input, conditioned by the Confirm
software command,
direct, via the software (Direct confirmation
command).
TLX DS 57 PL7 40E 09/2000
CTY2A/4A and CTY2C data module operation
Operating in up counting or down counting
At a glance
The standard operation of the TSX CTY 2A and 4A modules in up counting or down
counting only is summarized below.
Standard
principles
Up counting and down counting are developments that happen in the same register
of the module, only the direction of the development is different. This is set by the
software configuration (up counting or down counting functions alone).
The counting register’s developments are only possible when the function is
confirmed:
l either via a physical input (IVal) with a software prepositioning (Confirm
command),
l or directly, via the software: Direct confirmation command.
The counting values develop between:
l 0 and +16 777 215 in up counting (24 unsigned bits),
l -16 777 216 and +16 777 215 in down counting (24 + signed bits).
Operation
This timing diagram illustrates the up counting process. Down counting is similar,
only the measurement’s current development direction is the opposite.
The associated language objects are described in the default objects
(See Details of implicit exchange objects, p. 169) part.
IA physical input
IEna physical input
Enabling
Direct enabling
Current value
TLX DS 57 PL7 40E 09/2000
21
CTY2A/4A and CTY2C data module operation
Introduction to an up counting/down counting channel (TSX CTY 2A/4A)
At a glance
This section introduces the functional kernel of a channel, namely the following
blocks:
l up counting/down counting,
l confirmation.
Illustration
The up counting/down counting functional kernel of the TSX CTY2A or 4A modules
is shown below.
Event
processing
&
IEna physical
input
Enabling
Measurement
overrun
Up counter /
down counter
Changing direction
IA physical input
IB physical input
Enabling
active
& >1
Direct
enabling
Enabling
event
Direction
Current
value
Invalid
measurement
Configuring
counting input
IZ physical input
Note: this illustration is very similar to the one showing the up counting or down
counting function individually. The main differences are to do with the physical
inputs. The associated language objects are described in the default objects
(See Details of implicit exchange objects, p. 169) part.
Important note
Confirmation (hardware or software) is a special function, linked intrinsically to the
main up counting or down counting function. In fact, without confirmation, there can
be no up counting or down counting. Because of this, contrary to other functions,
confirmation is introduced in this section.
Physical inputs
The up counting/down counting function takes four configurations of counting
physical inputs, as described in the table below.
22
TLX DS 57 PL7 40E 09/2000
CTY2A/4A and CTY2C data module operation
Input
characteristics
This table summarizes the input characteristics of the up counting or down counting
functions (for each channel).
Modules involved
TSX CTY 2A/4A
Input configuration
l
l
l
l
Confirmation
TLX DS 57 PL7 40E 09/2000
l
l
An IA physical input and a software input
(counting direction).
Two physical inputs: IA (main) and IB
(counting direction).
Two physical inputs: IA (up counting) and IB
(down counting).
Three physical inputs: IA and IB to the incremental
encoder, and IZ when there is a pulse to the encoder
tower.
hardware: IVal physical input,
software.
23
CTY2A/4A and CTY2C data module operation
Operating in up counting/down counting
At a glance
Operating the TSX CTY2A and 4A in combined up counting/down counting is
introduced below.
Standard
principles
Up counting or down counting are developments that happen in the same register
of the module, only the direction of the development is different. This is set via the
software configuration, a physical input or applying the counting signal to a particular
input.
The counting register’s developments are only possible when the function is
confirmed:
l either via a physical input IVal with software prepositioning (confirm command),
l or directly, via the software: direct confirmation command.
The counting values develop between:
l -16 777 216 and +16 777 215 (24 + signed bits).
Operation
The timing diagram below shows the up counting/down counting process when the
counting signal is applied to the IA input, with the IB input defining the counting
direction. As shown earlier, there are several other ways of defining the counting
direction, but the principle of up counting/down counting remains the same.
The associated language objects are described in the default objects
(See Details of implicit exchange objects, p. 169) part.
IA physical input
IB physical input
IEna physical
input
Enabling
Direct enabling
Current value
t
24
TLX DS 57 PL7 40E 09/2000
CTY2A/4A and CTY2C data module operation
2.3
Main functions of the TSX CTY2C module
At a Glance
Contents of this
section
This section describes the main functions of the TSX CTY2C fast counting module.
What’s in this
Section?
This Section contains the following Maps:
Topic
Introduction to the TSX CTY2C module
TLX DS 57 PL7 40E 09/2000
Page
26
Introduction to an up counting/down counting and measurement channel
28
Operating in up counting/down counting
30
Operating in speed measurement mode
31
25
CTY2A/4A and CTY2C data module operation
Introduction to the TSX CTY2C module
Description
26
The TSX CTY2C is a counting module for the TSX/PMX/PCX 57 PLCs.
This module has two identical channels with the following main functions:
l up counting/down counting pulses (See Introduction to an up counting/down
counting and measurement channel , p. 28),
l placing an absolute encoder (See Specialized interface for an absolute encoder
(TSX CTY 2C), p. 42),
l measuring and monitoring speed (pulse frequency) (See Overspeed monitoring
function (TSX CTY2C), p. 91).
It also has the following functions:
l confirmation (See Introduction to an up counting/down counting and
measurement channel , p. 28),
l capture (See Description of the capture function in counting modules, p. 44),
l preset (See Preset in up/down counting (TSX CTY 2A/4A/2C), p. 56),
l comparisons (See Comparison in up/down counting and measurement mode
(TSX CTY2C), p. 66),
l storing (See Switches in up/down counting mode (TSX CTY 2A, 4A, 2C), p. 73)
transient events using two switching circuits,
l four physical outputs (See Introduction to TSX CTY2C module outputs, p. 83),
l event processing (See Event processing installation, p. 159).
TLX DS 57 PL7 40E 09/2000
CTY2A/4A and CTY2C data module operation
Illustration
The diagram below introduces a channel’s functional kernel structure (main up
counting/down counting functions and speed, confirmation, preset and capture
measurement). To find out the associated language objects, see the default objects
(See Details of implicit exchange objects, p. 169).
EVT
Unmask
ICapt physical
input
Configura
tion
&
>1
EVT Capture
&
Captured
value
Capture
register
Capture
edge
SET
Capture
reset
Enabling
Software
capture
IZ physical
input
IPres physical
input
Configura
tion
EVT
Unmask
& >1
Q
RESET
Preset
EVT
&
Preset
register
SET
Enabling
Reset
Preset
Software
preset
Q
Enabling
EVT
Enabling
Physical
IAinput
Physical
IBinput
Physical
IZinput
Software
direction
SSI Data
physical input
SSICLK
physical output
UP COUNTER /
DOWN COUNTER
SPEED
Measurement period
Overspeed
threshold
Input
configuration
&
Series output
absolute
encoder offset
OFFSET
TLX DS 57 PL7 40E 09/2000
Enabling
active
Current
value
Measurement
overrun
Direction
Invalid
measurement
Current
speed
& >1
Direct
enabling
Preset done
RESET
&
IEna physical
input
Capture
done
Modulo mode
Reset
modulo
crossing
Address
absolute encoder
with parallel outputs
EVT modulo
crossing
SET
+ direction modulo
crossing
RESET
- direction modulo
crossing
MODULO
27
CTY2A/4A and CTY2C data module operation
Introduction to an up counting/down counting and measurement channel
Introduction
This section introduces the functional kernel of a channel in the TSX CTY2C
module, namely the following blocks:
l up counting/down counting and speed measurement,
l confirmation.
Note
Confirmation (hardware or software) is a special function, linked intrinsically to the
up counting/down counting. It is introduced here because of this, as opposed to
other functions.
Illustration
The diagram below introduces the main functions of a channel in the TSX CTY2C
module. The associated language objects are described in the default objects
(See Details of implicit exchange objects, p. 169) part.
Processing
EVT
IEna physical
input
& >1
Current
value
Direct
enabling
UP COUNTER /
DOWN
COUNTER
Measurement
overrun
Direction
IA physical input
IB physical input
SPEED
MEASUREMENT
IZ physical input
SSICLK physical
output
EVT
Enabling
Active
enabling
Enabling
Software
direction
SSI Data physical
input
&
Input
configuration
Invalid
measurement
Address
of absolute
encoder with
parallel outputs
Current
speed
Measurement
period
Overspeed
threshold
Overspeed error
28
TLX DS 57 PL7 40E 09/2000
CTY2A/4A and CTY2C data module operation
Input
characteristics
The TSX CTY 2C takes five physical input configurations, as described in the table
below (for each channel).
Module involved
TSX CTY 2C
Input configuration
l
l
l
l
l
Confirmation of up counting/
down counting
l
l
TLX DS 57 PL7 40E 09/2000
An IA physical input and a software input (counting
direction).
Two physical inputs: IA (main) and IB (counting
direction).
Two physical inputs: IA (up counting) and IB (down
counting).
Three physical inputs: IA and IB to the incremental
encoder, and IZ when there is a pulse to the encoder
tower.
An absolute SSI series encoder input/output interface,
with:
l an SSI Data physical input
l an SSICLK transmission timer output.
hardware: IVal input (combined with the Q2 output, to
be configured), conditioned by the Confirm software
command,
direct, via the software (Direct confirmation
command).
29
CTY2A/4A and CTY2C data module operation
Operating in up counting/down counting
At a glance
Operating the TSX CTY2C module in up counting/down counting mode is intrduced
below.
Standard
principles
Up counting or down counting are developments that happen in the same register
of the module, only the direction of the development is different. This is set via the
software configuration, a physical input or applying the counting signal to a particular
input.
The counting register’s developments are only possible when the function is
confirmed:
l either via a physical input (IVal) with a software prepositioning
(Confirm command).
l or directly, via the software: Direct confirmation command.
The counting values develop between:
l -16 777 216 and +16 777 215 in normal mode (24 + signed bits).
l 0 and +33 554 431 in modulo mode (25 unsigned bits).
Operation
The timing diagram below shows the up counting/down counting process when the
counting signal is applied to the IA input, with the IB input defining the counting
direction. As shown earlier, there are several other ways of defining the counting
direction, but the principle of up counting/down counting remains the same.
The associated language objects are described in the default objects
(See Details of implicit exchange objects, p. 169) part.
IA physical input
IB physical input
IEna physical input
Enabling
Direct enabling
Current value
30
TLX DS 57 PL7 40E 09/2000
CTY2A/4A and CTY2C data module operation
Operating in speed measurement mode
At a glance
Apart from the up counting/down counting function, the TSX CTY 2C module also
has the speed measurement function.
This function can be used with counting sensors (generating pulses) or with absolute
encoders (generating a word describing a position).
Note
Getting a position is not an up counting or down counting of pulses as such, but it
has the same result, that is to say successive writes of the counting register.
Principle of the
measurement
The principle of calculating the speed is the same as that of the frequency meter:
with a measurement period (sampling) that can be adjusted by the user, the speed
is calculated and updated, in number of pulses per second. By default, the
measurement period’s value is 1 second.
The following diagram shows the principle of the measurement:
End of n-1 cycle,
the speed of cycle n-1 is calculated
End of n cycle,
the speed of cycle n is calculated
Measurement period 10 ms to 30 s
Counting
pulses
Cycle n-1
calculation
Cycle n
calculation
Cycle n+1
calculation
The sampling period must be chosen according to the required precision and the low
limit of the speed (frequency) of the signal to be measured. This is done using the
following formula:
Sampling period
1
precision x speed
where the precision is shown in decimal value (for example: 0.1% = 0.001) and the
speed (pulse frequency) in thousands of pulses per second (kHz). The sampling
period is acquired in milliseconds.
Example: for a pulse frequency of 40 000 to 250 000 pulses per second and a
precision established at 0.1%, the minimum sampling period is 25 ms.
Note: the minimum sampling period is 10 ms.
TLX DS 57 PL7 40E 09/2000
31
CTY2A/4A and CTY2C data module operation
Principle of
monitoring the
speed
32
Monitoring the speed supports setting the reflex outputs to 0 when there is an
overshoot of a configurable speed threshold, and directly commanding a security
device (for example).
For more details on the speed measurement function, see Description of the speed
measuring function for the TSX CTY 2C module, p. 91.
TLX DS 57 PL7 40E 09/2000
Description of the standard
functions of the TSX CTY••
counting modules
3
At a glance
Subject of this
chapter
This chapter comprehensively describes all the standard functions of the
TSX CTY2A, TSX CTY4A and TSX CTY2C counting modules.
What’s in this
Chapter?
This Chapter contains the following Sections:
Section
Page
Introduction to functions associated with counting modules
35
3.2
Description of counting module input interfaces
38
3.3
Description of the capture function in counting modules
44
3.4
Description of the preset and reset function in counting
modules
48
3.5
Description of the comparison function for counting modules
62
3.6
Description of switches associated with counting modules
67
3.7
Description of physical outputs associated with counting
modules
77
3.8
Description of the speed measuring function for the
TSX CTY 2C module
91
3.9
Description of the special functions of the TSX CTY 2C
counting module
93
Description of how counting modules deal with faults
97
3.10
TLX DS 57 PL7 40E 09/2000
Topic
3.1
33
Standard functions of the TSX CTY•• counting modules
34
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
3.1
Introduction to functions associated with
counting modules
Introduction to input configurations and functions associated with counting
At a Glance
TSX CTY 2A, 4A and 2C modules offer several possibilities for processing
unprocessed results in offline mode, according to the type of module, the type of
sensor and the mode (counting function) selected. This chapter describes input
configurations and the associated functions which are available.
Input
configurations
Modules TSX CTY 2A, 4A and 2C have three counting inputs (See Description of
counting input interfaces (TSX CTY 2A / 4A / 2C), p. 39) for each channel: IA, IB and
IZ. These inputs cannot be changed round.
The TSX CTY 2C module also has an SSI series interface (See Specialized
interface for an absolute encoder (TSX CTY 2C), p. 42) for each channel.
Advantages
of associated
functions
Associated functions are used to adapt modules to the application. As long as the
main counting function for one module is similar enough to another, selecting the
latter may depend on these other functions.
TLX DS 57 PL7 40E 09/2000
35
Standard functions of the TSX CTY•• counting modules
Common
functions
36
The table below summarizes the main characteristics of the functions common to
the three module types, and their availability according to the operating mode.
Function
Description
Availability
Invalid measurement
Detecting a loss of pulse caused
by defective operating conditions,
or when capacity has been
exceeded.
All modes.
Preset or reset
Pre-setting a counting register to a Resetting to zero in counting,
defined value (zero for a reset).
presetting in down counting
or up/down counting
combined.
Capture
Storing an immediate up/down
counting register value.
Comparison
Comparing a current value with a All modes.
preset value (zero in down
counting only).
Only in up/down counting.
Comparing the captured value
with a preset value.
Switches
Storing a preset temporary event. All modes.
Number of switches (one or
two) varies according to the
module and the mode.
Outputs
According to configuration:
physical outputs linked to
switches (reflexive outputs), or
positioned by software (discrete
"manual" outputs).
Event processing
Several events can trigger a
All modes
processing operation and a reflex
action:
l enabling up or down counting,
l presetting or resetting,
l crossing the threshold or
setpoint,
l capture (when up/down
counting).
Only in combined up/down
counting.
Number of outputs (one to
four) variable according to
the module and the mode.
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
Specific function
Speed monitoring (See Description of the speed measuring function for the
TSX CTY 2C module, p. 91) is only available with the TSX CTY 2C module.
One or two physical outputs can be linked to the comparators, and can then
translate the result of the comparison between the immediate speed and a preset
value.
Special
functions
(TSX CTY 2C)
The TSX CTY 2C module can also configure three special functions (See
Description of the special functions of the TSX CTY 2C counting module , p. 93).
These functions are derived from the previous standard functions, and they respond
to the specific requirements of certain counting applications. These are:
l Special Function Number 1: time elapsed since the last pulse and a capture.
l Special Function Number 2: triggering a capture and a direct (software) preset
synchronized with the programmable frequency output.
l Special Function Number 3: monitoring the correct speed and stationary
moving part. Tolerance values for the correct speed and stop speed can be
configured.
TLX DS 57 PL7 40E 09/2000
37
Standard functions of the TSX CTY•• counting modules
3.2
Description of counting module input interfaces
At a Glance
Subject of this
section
This section deals with the input interfaces for counting modules.
What’s in this
Section?
This Section contains the following Maps:
38
Topic
Page
Description of counting input interfaces (TSX CTY 2A / 4A / 2C)
39
Specialized interface for an absolute encoder (TSX CTY 2C)
42
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
Description of counting input interfaces (TSX CTY 2A / 4A / 2C)
At a Glance
This section describes the operation of counting input interfaces which are common
to modules TSX CTY 2A, 4A and 2C.
Configuration:
IA up/down
counts, direction
according to
application
The figure below represents the counting signal applied to IA input.
IA
0
2
1
Direction
change
3
up counting
2
1
down counting
In this configuration, the change of direction bit managed by the application
determines direction of the up or down counting on the rising edges of the signal.
Configuration:
IA up/down
counts, direction
according to IB
The following figure represents the counting signal applied to IA and IB inputs which
determine the direction of the counting.
IA
-1
IB
1
0
up counting
25 µs mini
2
1
0
down counting
25 µs mini
Up/down counting is done on the rising edges of pulses received on IA input.
TLX DS 57 PL7 40E 09/2000
39
Standard functions of the TSX CTY•• counting modules
Configuration:
IA up counts,
IB down counts
The figure below represents the counting signal applied to IA input (in up counting)
or to IB input (in down counting)
IA
1
2
3
IB
2
up counting
1
down counting
0
Pulses are taken into account by the up/down counter on the rising edges of the
physical input in progress. IA input increments the up/down counter (upcounting)
and IB input decrements it (downcounting). If pulses on the two inputs are
simultaneous, the up/down counter does not change.
Configuration:
incremental
encoder
In this operating mode, physical inputs IA and IB are connected to an incremental
encoder which supplies two out-of-phase signals of 90°. The extent to which inputs
IA and IB are out of phase determines the direction of up/down counting.
The figure below represents counting (IA ahead of IB).
IA
IB
Increments
IZ
90° phase shift
+1
+1
+1
+1
+1
+1
Note: the incremental encoder also provides marker information on the IZ input.
This pulse on IZ input enables an up/down counter to be preset.
The figure below represents down counting (IA behind IB).
IA
IB
90° phase shift
Decrements
40
-1
-1
-1
-1
-1
-1
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
Incremental
encoder
interface options
Several options are available on the configuration screen when an incremental
encoder is connected:
If …
Then …
the line check is
configured (encoder with
RS 422 / 485 output),
the PLC indicates a fault when it detects a break in the encoder
cable on one of the IA, IB or IZ physical inputs. It is then possible
to start the application procedure which corresponds to the fault.
multiplication by 1 is
configured,
up/down counting is done on rising edges of IB physical input
(case shown: counting).
IA
IB
90°
0
multiplication by 4 is
configured,
2
3
4
5
up/down counting is done on all the rising and falling edges of IA
and IB physical inputs (case shown: down counting).
IA
IB
90°
TLX DS 57 PL7 40E 09/2000
1
-1
0
-3 -5
-2 -4
-6
-7
-9
-8
-11 -13 -15 -17 -19 -21 -23
-10 -12 -14 -16 -18 -20 -22
41
Standard functions of the TSX CTY•• counting modules
Specialized interface for an absolute encoder (TSX CTY 2C)
At a Glance
Module TSX CTY 2C also has a specialized interface for a series absolute encoder,
for applications that measure and monitor speed.
This section describes the operation of this specific input interface.
Inputs
In this configuration, SSI Data physical input and SSICLK physical output are
connected to the series output absolute encoder.
It is also possible to connect up one to four parallel output absolute encoders by
using the adaptation bases (see the Installation Manual).
Description of
the SSI interface
The figure below represents an SSI frame.
Initialization
Encoder selection
SSICLK
SSIData
MSB
HEADER
Reload time
(10 to 40 µs, depending
on the encoder)
LSB
DATA
PARITY
STATUS
The main other frame and interface features are as follows:
Parameters
Values or observations
Code
Binary or Gray
SSICLK transmission speed
150 kHz, 200 kHz, 375 kHz, 500 kHz, 750 kHz or 1 MHz
Header bits
Ignored
Data bits
42
l
l
l
8 active data bits minimum.
17 masked most significant bits maximum (rollover counting).
17 masked least significant bits maximum (resolution reduction).
Status bits
An error bit specific to the encoder. Its frame position and significance
can be configured.
Parity
Even, odd (not monitored by the module) or without parity.
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
Note
TLX DS 57 PL7 40E 09/2000
With an absolute encoder, the up/down counting is carried out implicitly in rollover
mode. The number of unmasked bits directly gives the rollover value. The counting
register changes in the [0, rollover] interval. The minimum rollover value is 1 and its
maximum value is +33 554 432 (25 data bits without masked bit).
43
Standard functions of the TSX CTY•• counting modules
3.3
Description of the capture function
in counting modules
At a Glance
Subject of this
section
This section describes the capture function for counting modules.
What’s in this
Section?
This Section contains the following Maps:
44
Topic
Page
Capture function for data module counters
45
Capture, TSX CTY 2C module specific features
47
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
Capture function for data module counters
Description
Triggering
a capture
Capture is used to copy the current value of the up/down counting register to a
capture register. It therefore fixes the immediate value at the precise moment the
operation started.
Capture is only possible in combined up/down counting mode (all modules).
Module TSX CTY 2C also has a combined captured mode in the hardware preset
(see: Capture, TSX CTY 2C module specific features, p. 47.
Capture done information is an event which can undergo an event processing
operation.
The operation is triggered:
l either directly, via the software: Direct capture command,
l or by the hardware: when the ICapt physical input status has changed, with
pre-enabled software (Capture enable command). This signal can be:
l the rising edge of ICapt input,
l the falling edge of ICapt input,
l The rising edges and the falling edges of ICapt input (TSX CTY 2C only).
Note: time performances are at a maximum when ICapt input is configured on the
rising or falling edge.
Function
hardware
structure
The figure below shows the hardware structure of the capture function. The
associated language objects are described in the implicit objects (See Details of
implicit exchange objects, p. 169) section.
Capture event
processing
Capture
event
&
Current value
ICapt physical
input
Capture
Configuration
& >1
SET
RESET
Capture
enabling
Direct
capture
Register for
capture
Q
Capture
done
Captured
value
Capture reset
done
TLX DS 57 PL7 40E 09/2000
45
Standard functions of the TSX CTY•• counting modules
Operation
The time diagram below shows the capture mode on the rising edge of ICapt. The
other modes (capture on falling edge, on rising and falling edges) are similar.
IA physical input
ICapt physical
input
Capture enabling
Direct capture
Direct enabling
Current value
Captured values
46
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
Capture, TSX CTY 2C module specific features
Specific modes
Except for the single capture modes, described in the previous paragraph, module
TSX CTY 2C has two specific modes:
l capture of rising edges and falling edges of the input ICapt. This is an extension
to the single capture principle, described in the previous Section.
l capture combined at hardware preset (capture before preset mode).
Capture mode on
rising and falling
edges
The capture mode on rising edges and falling edges of the ICapt physical input can
be used, for example, to measure the lengths of parts. This depends on an exterior
pulse for two successive captures to be carried out.
The allowable interval between the two capture fronts must be a minimum of 0.5 ms.
This is therefore the minimum size of the capture pulse.
Respecting this condition guarantees the correct running of the function, i.e. taking
into account of all the edges present on the physical capture input.
Examples
The table below gives as an example this interval according to counting input
frequency.
Counting input frequency Minimum interval between capture edges
(in number of counting pulses)
Capture before
preset mode
TLX DS 57 PL7 40E 09/2000
125 kHz
63
250 kHz
125
500 kHz
250
1 MHz
500
This capture mode, specific to module TSX CTY 2C, applies to the up/down
counting of pulses (proximity detector, incremental encoder), but not to the
acquisition of data from the absolute encoder
The preset IPres physical input triggers successively:
l a capture,
l followed by the preset.
47
Standard functions of the TSX CTY•• counting modules
3.4
Description of the preset and reset function
in counting modules
At a Glance
Subject of this
section
This section describes the preset and reset functions for counting modules.
What’s in this
Section?
This Section contains the following Maps:
Topic
Introduction to the preset/reset function
48
Page
49
Preset in downcounting mode (TSX CTY 2A/4A)
50
Resetting when counting (TSX CTY 2A/4A)
53
Preset in up/down counting (TSX CTY 2A/4A/2C)
56
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Standard functions of the TSX CTY•• counting modules
Introduction to the preset/reset function
General
The preset initializes the up/down counting register to a predefined value
(by software). Reset initializes to zero the same register.
The preset concerns the down counting mode and the combined up/down counting
mode. Resetting only involves the counting mode (TSX CTY2A/4A).
The operation can be triggered or automatic.
The following sections detail the conditions for preset/resetting to zero, according to
the counting method and module used.
Notes
l Preset (or reset) acts on the object (see How to deal with an invalid
measurement, p. 99).
l Preset (or reset) done is an event which can undergo an event processing
operation.
TLX DS 57 PL7 40E 09/2000
49
Standard functions of the TSX CTY•• counting modules
Preset in downcounting mode (TSX CTY 2A/4A)
At a Glance
Presetting initializes the down counting register to a value preset by the software.
Preset is:
l triggered
l by the hardware: on the rising or falling edge of the IPres physical input with
pre-enabled software, Preset enable command,
l directly by the software: Direct preset command.
l automatic, it will be done when the zero value is crossed.
Note: the two types of preset (triggered and automatic) are independent and can
co-exist.
Illustration
The figure below represents the preset function triggered by the hardware.
The associated language objects are described in the section on implicit objects
(See Details of implicit exchange objects, p. 169).
Preset event
processing
Physical input
IPres
Configuration
preset
&
Value of
preset
&
SET
Enable
preset
Direct
preset
Event
preset
RESET
>1
Preset
Q done
Preset reset
Up / Down counter
50
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Standard functions of the TSX CTY•• counting modules
Time diagrams
The following time diagrams show the different cases for preset with or without
automatic reloading when crossing the zero value threshold.
The time diagram below shows a preset triggered by IPres, then a direct (software)
preset. Zero value is crossed without automatic preset.
IA physical input
Physical input
IPres
Enable
preset
Direct
preset
Direct
enabling
Preset value
Current value
t
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51
Standard functions of the TSX CTY•• counting modules
The time diagram below shows a preset triggered by IPres, a direct preset, and an
automatic preset when crossing the zero value.
IA physical input
Physical input
IPres
Enable
preset
Direct
preset
Direct
enabling
Preset value
Current value
t
52
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Standard functions of the TSX CTY•• counting modules
Resetting when counting (TSX CTY 2A/4A)
At a Glance
Resetting initializes the counting register at zero value.
Resetting is:
l triggered
l by the hardware: on the rising or falling edge of the IReset physical input with
the software being pre-enabled, Reset enable command,
l directly by the software: Direct reset command.
l automatic, will be done when the zero value is crossed.
Note: IReset input is physically the same as the IPres input used for presetting in
down counting mode.
The diagram block of the Reset function is the same as that of the function for
Preset (See Preset in downcounting mode (TSX CTY 2A/4A), p. 50).
Note: the two types of Reset (triggered and automatic) are independent and can
co-exist.
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53
Standard functions of the TSX CTY•• counting modules
Time diagrams
The following figures show examples of triggered and automatic resetting to zero:
The time diagram below shows both a triggered reset on the rising edge of the
IReset input, and a direct (software) reset. The high setpoint is crossed without
automatic reset. The associated language objects are described in the section on
implicit objects (See Details of implicit exchange objects, p. 169).
IA input
Input IReset
Enabling reset
Direct reset
Input IVal
Enable
Direct
enabling
High set point
Current
value
t
Current value
> high setpoint
54
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
The time diagram below shows a triggered reset on the rising edge of IReset input,
a direct (software) reset and an automatic reset when crossing the high setpoint.
IA input
Input IReset
Enabling reset
Direct reset
Input IVal
Enabling
Direct
enabling
High
setpoint
Threshold 0
Current
value
Current value
> threshold 0
Current value
> threshold 1
TLX DS 57 PL7 40E 09/2000
Threshold 1
0
t
55
Standard functions of the TSX CTY•• counting modules
Preset in up/down counting (TSX CTY 2A/4A/2C)
Presetting
modes
In the combined up/down counting modes there are 7 hardware preset modes
which are combinations relating to states and/or edges of Ipres and IZ physical
inputs:
l IPres rising edge,
l IPres falling edge,
l rising edge of IPres + direction / falling edge of IPres - direction,
l rising edge of IPres - direction / falling edge of IPres + direction,
l status of IPres,
l reference point short cam (with incremental encoder),
l reference point long cam (with incremental encoder).
Direct preset (by software) exists alongside the hardware presetting modes
mentioned above.
Notes
l There is no automatic preset in combined up/down counting (on crossing a value
as there is for up or down counting alone).
l There is no preset in conjunction with absolute encoders (TSX CTY 2C).
56
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Standard functions of the TSX CTY•• counting modules
Presetting
on IPres edge
The first two presetting modes (on IPres rising or falling edge) are the same as those
described for down counting only.
The figure below shows an example of preset on the IPres rising edge, as well as
direct (software) preset. Preset on the IPres falling edge is similar. The associated
language objects are described in the section on implicit objects (See Details of
implicit exchange objects, p. 169).
Physical input
IB
down counting
counting
Physical input
IA
Physical input
IPres
Enable
preset
Direct
preset
Direct
enabling
Preset value
Current
value
t
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57
Standard functions of the TSX CTY•• counting modules
Preset on IPres
edge combined
with counting
direction
The figure below shows an example of preset on the rising edge of IPres in up
counting (+ direction), and on the falling edge of IPres in down counting (- direction).
The reverse case is similar.
Physical input
IB
down counting
counting
Physical input
IA
Physical input
IPres
Enable
preset
Direct
enabling
Preset value
Current
value
t
58
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Standard functions of the TSX CTY•• counting modules
Preset on
IPres state
The figure below shows an example of preset on IPres state (high level). The
counting value is fixed at the preset value for the duration of the active state of IPres.
Physical input
IB
counting
Physical input
IA
Physical input
IPres
Enable
preset
Direct
enabling
Current
value
Preset value
TLX DS 57 PL7 40E 09/2000
t
59
Standard functions of the TSX CTY•• counting modules
Preset on
reference point
short cam
This mode and the one that follows (reference point long cam) are to be used with
an incremental encoder.
The time diagrams below show preset mode on a reference point short cam .
+ Direction: counting
Physical input
IPres (short cam)
Physical input
IZ(zero marker)
(1)
- Direction : down counting
Physical input
IPres (short cam)
Physical input
IZ(zero marker)
(1)
Note: (1) preset is taken into account:
l in + direction (up counting): IPres input at state 1, rising edge of marker input at
IZ revolution and software enabling.
l in direction - (down): IPres input in state 1, falling edge of marker input at IZ
revolution and software enabling.
Note: In principle, as the short cam is less than an incremental encoder revolution,
the revolution marker is only produced once in the cam. If, however, there are
several incremental revolutions in the cam, the last active edge of the revolution
marker signal triggers the preset.
60
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Standard functions of the TSX CTY•• counting modules
Preset on
long cam
reference point
The time diagrams below show preset mode on a reference point long cam.
Counting direction
Physical input
IPres (long cam)
Physical input
IZ(zero marker)
Preset
Down counting direction
Physical input
IPres (long cam)
Physical input
IZ(zero marker)
Preset
Note: preset is taken into account on the first rising edge of the IZ revolution marker
input, which follows the change of Ipres input to status 0, both in the counting and
the down counting directions and software enabling.
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61
Standard functions of the TSX CTY•• counting modules
3.5
Description of the comparison function
for counting modules
At a Glance
Subject of this
section
This section describes the comparison function for counting modules.
What’s in this
Section?
This Section contains the following Maps:
62
Topic
Page
Introduction to the comparison function
63
Comparison in counting or down counting (TSX CTY2A/4A)
64
Comparison in up counting/down counting mode (TSX CTY2A/4A)
65
Comparison in up/down counting and measurement mode (TSX CTY2C)
66
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
Introduction to the comparison function
General
Modules TSX CTY 2A, 4A and 2C have a comparison function which compares the
current value and the captured value with:
l zero value,
l threshold 0,
l threshold 1,
l the high setpoint,
l the low setpoint,
l the rollover crossing.
The table below summarizes the various possibilities:
Element for
comparison
The comparison in relation to the
current value is possible for:
The comparison in relation to the
captured value is possible for:
Zero value
CTY 2A/4A (down counting only)
No module
Threshold 0
CTY 2A/4A (up counting only)
CTY 2A/4A (up/down counting)
CTY 2C (up/down counting)
CTY 2A/4A (up/down counting)
CTY 2C (up/down counting)
CTY 2A/4A (up counting only)
CTY 2A/4A (up/down counting)
CTY 2C (up/down counting)
CTY 2A/4A (up/down counting)
CTY 2C (up/down counting)
CTY 2A/4A (up counting only)
CTY 2A/4A (up/down counting)
CTY 2A/4A (up/down counting)
Threshold 1
High setpoint
Note
TLX DS 57 PL7 40E 09/2000
Low setpoint
CTY 2A/4A (up/down counting)
CTY 2A/4A (up/down counting)
Rollover
crossing
CTY 2C (up/down counting)
CTY 2C (up/down counting)
Crossing thresholds, setpoints and rollover can be subjects of an event process
operation.
63
Standard functions of the TSX CTY•• counting modules
Comparison in counting or down counting (TSX CTY2A/4A)
Comparisons in
down counting
In down counting only mode, a single possibility is autorized:
l comparison of the current value to the zero value.
Comparisons in
up counting
In up counting only mode, three possibilities are offered:
l comparison of the current value to the 0 threshold,
l comparison of the current value to the 1 threshold,
l comparison of the current value to the high setpoint.
Operation
The diagram below illustrates the operation of the comparisons available in up
counting only and down counting only modes in the TSX CTY 2A/4A modules.
The associated language objects are described in the section default objects
(See Details of implicit exchange objects, p. 169).
Current value
EVT
Processing
Value 0 (down
counting) or
Threshold 0 (counting)
&
Crossing EVT
value 0 (down counting)
or threshold 0 (counting)
Current value < 0 (down
counting) or threshold 0
(counting)
EVT
Processing
Threshold 1
(counting)
&
Crossing EVT
threshold 1 (counting)
Current reading >
threshold 1
EVT
Processing
High set point
(counting)
&
Crossing EVT
high set point (counting)
Current value > high set point
COMPARISON
64
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Standard functions of the TSX CTY•• counting modules
Comparison in up counting/down counting mode (TSX CTY2A/4A)
Possible
comparisons
In combined up counting / down counting mode, comparisons are possible with:
l two thresholds (0 and 1 threshold),
l and two setpoint values (high and low).
There are therefore 8 possible comparisons.
Operation
The figure below illustrates the operation of comparisons available in up counting /
down counting mode in TSX CTY 2A /4A modules. The associated language objects
are described in the section default objects (See Details of implicit exchange
objects, p. 169).
Current value
Captured value
EVT processing
&
Value of
threshold 0
Crossing EVT
threshold 0
Current value >
threshold 0
Captured value >
threshold 0
EVT processing
&
Value of
threshold 1
Crossing EVT
threshold 1
Current value >
threshold 1
Captured value >
threshold 1
EVT processing
&
Value of high
set point
Crossing EVT
high set point
Current value >
high set point
Value captured >
high set point
EVT processing
&
Value of low
setpoint
Crossing EVT
low set point
Current reading >
low setpoint
Value captured >
low setpoint
COMPARISON
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65
Standard functions of the TSX CTY•• counting modules
Comparison in up/down counting and measurement mode (TSX CTY2C)
At a Glance
In up/down counting and measurement mode, comparison can be used with:
l threshold 0,
l threshold 1,
There are four ways of comparing: current value and captured value in relation to
the thresholds.
Operation
The figure below illustrates the operation of comparisons available in up / down
counting mode in TSX CTY 2C modules. The associated language objects are
described in the implicit objects (See Details of implicit exchange objects, p. 169)
section.
Modulo
Current
value
Capture
value
Processing
EVT
Crossing EVT
modulo + direction
Crossing
modulo + direction
&
Processing
EVT
Crossing EVT
modulo - direction
Crossing
modulo - direction
&
Processing
EVT
Crossing EVT
threshold 0
Current reading >
threshold 0
Captured value >
threshold 0
Crossing EVT
threshold 1
Current reading >
threshold 1
Captured value >
threshold 1
&
Value of
threshold 0
Processing
EVT
&
Value of
threshold 1
COMPARISON
SET
Q
Switch status 0
Q
Switch status 1
RESET
SET
RESET
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Standard functions of the TSX CTY•• counting modules
3.6
Description of switches associated with
counting modules
At a Glance
Subject of this
section
This section describes how switches associated with counting modules operate.
What’s in this
Section?
This Section contains the following Maps:
TLX DS 57 PL7 40E 09/2000
Topic
Page
Introduction to storing switches
68
Switches in down counting mode (TSX CTY2A/4A)
69
Switches in counting mode (TSX CTY2A/4A)
70
Switches in up/down counting mode (TSX CTY 2A, 4A, 2C)
73
67
Standard functions of the TSX CTY•• counting modules
Introduction to storing switches
General
68
Some temporary circumstances that occur during up or down counting are stored in
switches. The number of these switches (one or two) depends on the operating
mode.
Switch outputs can be tested by the software and in some cases sent to physical
outputs (reflex outputs).
Switches have automatic adjustable setting to 1 conditions (SET) and resetting to
zero conditions (RESET) and direct setting to 1 or 0 conditions by the software.
The latter always have the highest priority. Priority rules are set out in the sections
Switches in counting mode (TSX CTY2A/4A), p. 70and Switches in up/down
counting mode (TSX CTY 2A, 4A, 2C), p. 73.
This section describes SET and RESET conditions according to the modules and
their operating modes.
Adjusting switch conditions is described in the section Adjustment of the data
modules TSX CTY2A, TSX CTY4A and TSX CTY2C, p. 125.
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
Switches in down counting mode (TSX CTY2A/4A)
General
In counting down mode alone, TSX CTY 2A/4A modules only have one switch
setting (0) with pre-defined automatic SET and RESET conditions:
l SET: current value less than or equal to 0,
l RESET: direct (software) preset or hardware preset done.
Inputs for
switch 0
The following figure shows inputs for switch 0 in down counting mode. You will also
see manual inputs for setting to 0 or 1.
Current value < 0
Physical input
IPres
SET
Configuration
& >1
Q
RESET
Set to 0
Confirm
preset
Set to 1
Direct preset
Operating
example
Switch status 0
The following time diagram shows how switch 0 operates.
Physical input
IPres
Preset confirmation
Direct preset
Preset value
Current value
Switch status 0
Manual setting to 1
Manual setting to 0
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69
Standard functions of the TSX CTY•• counting modules
Switches in counting mode (TSX CTY2A/4A)
General
In counting mode alone, TSX CTY 2A/4A modules have two switch settings:
l switch 0 where automatic SET and RESET conditions are predefined,
l switch 1 where automatic SET and RESET conditions can be adjusted using 5
combinations.
Inputs for
switch 0
The following figure shows inputs for switch 0 in counting mode alone. You will also
see manual inputs for setting to 0 or 1.
Current value > high set point
Physical input
IReset
SET
Configuration
& >1
Q
RESET
Switch status 0
Set to 0
Enabling reset
Direct reset
Inputs for
switch 1
Set to 1
The following figure shows inputs for switch 1 in counting mode alone, as well as
direct inputs for setting to 0 or to 1.
BASIC CONDITIONS
Threshold 0 crossing
Threshold 1 crossing
Set point crossing
Enabling event
Setting
parameters for
changing
switch status 1
Setting
parameters for
changing
switch status 1
>1
SET
>1
Q
RESET
Switch status 1
Set to 1
Set to 0
Reset event
Note: switches 0 and 1 have the same basic SET and RESET conditions. If these
happen at the same time the global RESET combination takes priority over the
SET combination.
70
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
Switch setting
conditions and
priorities
The following tables shows the conditions for switches 0 and 1 with their related
priorities.
Priority
Switch 0
Switch 1
Manual setting to 0.
Manual setting to 0.
Manual setting to 1.
RESET
SET
Enabling event
Resetting to zero event
Setpoint crossing
Crossing threshold 1
Crossing threshold 0
Greater priority
Manual setting to 1.
RESET: Reset to zero
(direct or done).
SET: current value greater than or
equal to the setpoint value
Lesser priority
Notes
l Adjustable conditions (events, crossing thresholds or set points) are the same for
switch 1 SET and RESET conditions.
l The RESET input takes priority over the SET input.
Operating
example
(switch 0)
The following time diagram shows how switch 0 operates.
Physical input
IReset
Enabling reset
Direct reset
threshold 0
Current value
Switch status 0
Manual setting to 1
Manual setting to 0
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71
Standard functions of the TSX CTY•• counting modules
Operating
example
(switch 1)
The following time diagram shows how switch 1 operates, with the adjustments
shown below:
If …
Then: final state…
Enabling event
-
Resetting event
R
Setpoint crossing
-
Crossing threshold 1
R
Crossing threshold 0
S
Time diagram showing how switch works:
Physical input
IReset
Enabling reset
Threshold 1
Threshold 0
Current value
Switch status 1
Manual setting to 1
Manual setting to 0
72
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Standard functions of the TSX CTY•• counting modules
Switches in up/down counting mode (TSX CTY 2A, 4A, 2C)
General
TLX DS 57 PL7 40E 09/2000
These modules offer two storing switches in up/down counting mode (and also
measurement mode where applicable for the TSX CTY 2C module).
Switch SET (setting to 1) and RESET (setting to 0) conditions can be adjusted using
combinations of:
l 17 basic conditions for TSX CTY 2A/4A modules,
l 13 basic conditions for TSX CTY 2C modules.
These basic conditions are relative to:
Module
Overshooting by the
current value of:
Captured value
settings in relation to:
Events:
TSX CTY 2A/4A
thresholds and
setpoints
thresholds and setpoints
enabling, preset
and capture
TSX CTY 2C
thresholds and rollover thresholds
enabling, preset
and capture
73
Standard functions of the TSX CTY•• counting modules
Switch inputs
The following figure shows switch inputs in up/down counting mode. Also note
manual inputs for setting to 0 and 1.
Standard conditions for
switch SET and RESET
Threshold 0 or 1 crossing,
direction + or High or low set point crossing,
direction + or Rollover crossing,
direction + or -
Setting
parameters for
changing
switch status 0
Setting
parameters for
changing
switch status 0
>1
SET
>1
Q
RESET
Switch 0 status
Set to 1
Set to 0
Value captured > or <
threshold 0 or threshold 1
Value captured > or < high or
low setpoint
Enabling event
Preset event
Capture event
Setting
parameters for
changing
switch status 1
Setting
parameters for
changing
switch status 1
>1
SET
>1
Q
RESET
Switch status 1
Set to 1
Set to 0
Note: switches 0 and 1 have the same basic SET and RESET conditions. If these
happen at the same time the global RESET combination takes priority over the
SET combination.
According to the type of module, some conditions cannot be set. Conditions and
their priority status are listed later on.
74
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Standard functions of the TSX CTY•• counting modules
Operating
example
The time diagram below shows how switch 0 operates with the following
adjustments:
If…
Then: final state…
Crossing threshold 0 in + direction
S
Captured value > threshold 0
R
Other conditions
-
Time diagram showing how switch 1 operates.
IPreset
Preset
confirmation
Direct
capture
Current
value
Threshold 0
Preset value
Switch 0
Set to 1
manual
Set to 0
manual
TLX DS 57 PL7 40E 09/2000
75
Standard functions of the TSX CTY•• counting modules
Basic conditions
and priorities
The following table shows the basic conditions for setting switches 0 and 1 with their
related priorities.
Priority
TSX CTY 2A/4A
TSX CTY 2C
Greater priority
Manual setting to 0
Manual setting to 1
RESET
SET
Enabling event
Captured value position in relation
to low setpoint
Captured value position in relation
to high setpoint
Captured value position in relation
to threshold 1
Captured value position in relation
to threshold 0
Capture event
Low setpoint crossing
High setpoint crossing
Crossing threshold 1
Crossing threshold 0
Preset event
Manual setting to 0
Manual setting to 1
RESET
SET
Enabling event
Crossing threshold 1
Crossing threshold 0
Rollover crossing
Captured value position in relation
to threshold 1
Captured value position in relation
to threshold 0
Capture event
Preset event
Lesser priority
Note: In reality, crossing setpoints, thresholds and rollovers group two conditions
each time, according to the direction (+ or -) of the crossing.
76
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Standard functions of the TSX CTY•• counting modules
3.7
Description of physical outputs associated
with counting modules
At a Glance
Subject of this
section
This section describes how physical outputs associated with counting modules
operate.
What’s in this
Section?
This Section contains the following Maps:
Topic
Counting modules physical outputs
TLX DS 57 PL7 40E 09/2000
Page
78
Introduction to modules TSX CTY 2A/4A physical outputs
79
Outputs fallback mode for TSX CTY2A/4A modules in the event of a fault
82
Introduction to TSX CTY2C module outputs
83
Outputs fallback mode for TSX CTY2C modules in the event of a fault
86
Reactivating outputs after a trip (TSX CTY2A/4A/2C)
88
77
Standard functions of the TSX CTY•• counting modules
Counting modules physical outputs
General
Each counting module channel offers one to four physical outputs, Q0 to Q3,
according to the module.
Q0 and Q1 outputs, available in all modules, can be configured using two modes:
l manual mode: the state of the output is monitored by the software as for a
discrete output,
l automatic mode: the output copies the associated switch state (switch 0 or 1),
and therefore the latches defined for these switches.
This mode is used to set up reflex actions in the module.
Q2 and Q3 outputs (only available in TSX CTY 2C modules), have more limited
configuration options (see: Introduction to TSX CTY2C module outputs, p. 83.
The behavior of outputs in the event of a fault (ie. in fallback mode) varies according
to whether the module is a TSX CTY 2A / 4A (See Outputs fallback mode for
TSX CTY2A/4A modules in the event of a fault, p. 82) or a TSX CTY 2C
(See Outputs fallback mode for TSX CTY2C modules in the event of a fault, p. 86).
In the event of a trip (ie. through a voltage surge or short-circuit), outputs must be
reset manually using the application, or automatically when the voltage surge
disappears.
78
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
Introduction to modules TSX CTY 2A/4A physical outputs
Description
Each channel in TSX CTY 2A and 4A modules has two physical outputs: Q0 and Q1.
These outputs can be used in manual mode (discrete). The state of these outputs is
then set by commands sent by the software.
Q0 and Q1 physical outputs can also be configured automatically. Automatic mode
is used to install reflex actions in the module by copying the state of the storing
switches respectively.
l Counting: two switches are available. The two outputs can be configured
automatically.
l Down counting: only switch 0 is available. Only one output (Q0) can be
configured automatically.
TLX DS 57 PL7 40E 09/2000
79
Standard functions of the TSX CTY•• counting modules
Structure of
outputs
The figure below shows the structure of physical outputs from a TSX CTY 2A/4A
channel. The associated language objects are described in the implicit objects
(See Details of implicit exchange objects, p. 169) section.
SET
Q
RESET
Enabling Automatic
mode Q0
Manual / automatic
mode Q0
&
&
>1
&
Output Q0
Q0 Physical
output
Monitoring shortcircuits and
physical outputs
Short-circuit
fault
&
&
Manual mode status
command
MODULE
AND
CHANNEL
FAULTS
>1
Fallback mode
configuration
SET
&
Q
RESET
Manual mode
status command
80
Switch state
1(not available in
down counting
mode)
Reactivation of
outputs Q0 and Q1
Enabling automatic
mode Q1
Manual / automatic
mode Q1
Switch status 0
&
&
>1
&
&
Output Q1
Q1 Physical
output
&
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
How outputs
operate
The time diagram below shows how outputs operate (using Q0 output as an
example).
Switch status 0
Manual /
automatic
mode
Manual mode
status
command
Enabling
automatic mode
Physical
output Q0
status
TLX DS 57 PL7 40E 09/2000
81
Standard functions of the TSX CTY•• counting modules
Outputs fallback mode for TSX CTY2A/4A modules in the event of a fault
Why have a
fallback mode?
The physical outputs from TSX CTY 2A/4A modules can directly control certain parts
of the process. It is therefore necessary for the safety of the operation to have a
fallback mode in the event of a fault in the outputs themselves, the module or the
application.
Fallback mode
The state of Q0 and Q1 physical outputs is forced to 0 when one of the following
faults occurs:
l tripped output (short-circuit or voltage surge),
l module failure,
l self-testing in progress,
l auxiliary input/output fault,
l counting input fault,
l fault in the counting application,
l application fault,
l stop in communication with the PLC: special fault for which the fallback mode can
also be configured following the table below.
All these faults are indicated by the software. The associated language objects are
described in the default objects (See Details of implicit exchange objects, p. 169)
section.
Communication
stop special case
If communication with the PLC stops:
Indicating a trip
82
If the fallback mode is configured to … Then outputs are…
Reset,
forced to 0,
maintain
maintained in the state they were in before the
fault appeared.
In the event of a voltage surge or short-circuit of an output, a trip is indicated:
l by software via language objects,
l and by LEDs:
l the module I/O LED is always lit,
l the CH LED associated with the channel with voltage overload flashes.
In addition, a current limit of 625 mA is put in place.
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
Introduction to TSX CTY2C module outputs
Description
Each TSX CTY 2C module channel has four physical outputs: Q0, Q1, Q2 and Q3.
All outputs can be used in manual (discrete) mode. The state of these outputs is then
set with commands sent by software. The associated language objects are
described in the implicit objects (See Details of implicit exchange objects, p. 169)
section.
Q0 or Q1 physical outputs can also be configured automatically. The state of Q0 and
Q1 outputs is thus that of counter output 0 and 1 outputs respectively. Automatic
mode is used to implement reflex actions in the module, according to the state of the
up/down counter.
Q2 output –
special case
Q2 is actually an input/output which can be configured:
l either as an enabling physical input IEna,
l or as a physical output Q2 (in manual mode only).
Q3 output –
special case
Q3 output can be used:
l either in manual mode,
l or in frequency mode which can be programmed from 1 ms to 4000 s by
increments of 1 ms.
Programmable frequency output enables an external synchronization marker to be
used on several channels of modules.
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83
Standard functions of the TSX CTY•• counting modules
Structure of
outputs
The figure below shows the structure of module TSX CTY 2C physical outputs.
The associated language objects are described in the default objects (See Details
of implicit exchange objects, p. 169) section.
SET
Q
RESET
Automatic mode
Q0 enabling
&
Manual/automatic
mode Q0
Manual mode Q0
command status
Switch 0 status
&
>1
&
&
Output Q0
Physical output Q0
&
Monitoring
short-circuit and
physical
outputs
ERRORS
MODULE
& CHANNEL
>1
Fallback mode
configuration
Automatic mode Q1
enabling
Manual/automatic
mode Q1
&
SET
&
Q
RESET
&
>1
Manual mode Q1
command status
84
&
&
Output Q1
Physical output Q1
&
&
Output Q2
Physical output Q2
&
&
Output Q3
Physical output Q3
&
Manual mode Q2
command status
Frequency
value
program.
Automatic mode
Q3 enabling
Manual/automatic
mode Q3
Manual mode Q3
command status
Switch 1 status
&
&
>1
&
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
How outputs
operate
The time diagram below shows how outputs operate (using Q0 output as an
example)
Switch status 0
Manual /
automatic mode
MANUAL
AUTO
Manual mode
status command
Enabling
automatic mode
Physical output
Q0 status
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85
Standard functions of the TSX CTY•• counting modules
Outputs fallback mode for TSX CTY2C modules in the event of a fault
Why have a
fallback mode?
Fallback
conditions in
manual mode
The physical outputs from TSX CTY2C modules can directly control certain parts of
the process. It is therefore necessary for the safety of the operation to have a
fallback mode in the event of a fault in the outputs themselves, the module or the
application.
For a TSX CTY2C modules, the fallback modes vary according to:
l the nature of the fault,
l the operating mode (manual or automatic) of the faulty output.
In the event of one of the following faults… :
Q0 to Q3 outputs in manual mode…:
l
l
l
are reset to zero.
l
l
l
l
l
l
l
l
l
l
module failure,
self-testing in progress,
counting application fault(invalid software
configuration or channel reconfiguration),
auxiliary inputs/outputs fault,
auxiliary input power supply fault,
tripping of any output
(short circuit or voltage surge).
counting input fault,
counting application fault (adjustment fault),
fault in the encoder power supply or sensor,
encoder line break or short-circuit,
SSI series frame fault,
specific absolute encoder fault,
measurement overrun or overspeed.
are not reset to zero.
All these faults are indicated by the software via language objects. To find out the
associated language objects, see CH_FLT word for explicit language objects
(See Channel standard fault, %MWxy.i.2, p. 178).
Fallback
conditions in
automatic mode
86
When outputs are in automatic mode, they are reset to zero whatever the fault. In
this way the module ensures the safety of the operation, even if the fault is masked.
These faults are also indicated by the software.
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
Communication
fault –
special case
Indicating a trip
TLX DS 57 PL7 40E 09/2000
In the event of PLC communication stopping, independently of manual or automatic
output mode:
If the fallback mode is configured to…
Then outputs are…
Reset,
forced to 0,
maintain.
maintained in the state they were before the fault
appeared.
In the event of a voltage surge or short-circuit of an output, a trip is indicated:
l by software via language objects, as mentioned before,
l and by LEDs:
l the module I/O LED is always lit,
l the CH LED associated with the voltage overload channel flashes.
In addition, a current limit of 625 mA is put in place.
87
Standard functions of the TSX CTY•• counting modules
Reactivating outputs after a trip (TSX CTY2A/4A/2C)
At a Glance
When a fault has tripped one or several physical outputs, it is essential to reactivate
them. This operation varies according to whether the configuration is set up to be
manual or automatic.
When a trip causes an incorrect operation of a PLC-controlled process, it is
recommended to link output reactivation to a manual operation (for example: press
a button to acknowledge, etc.). The operator can then take the necessary action with
regard to the automatic process and personnel safety (e.g. request to change to
manual mode)
Note: It is possible to program an automatic reactivation, if under the responsibility
of the user and PLC-controlled process allowing.
Basic principle
88
When one of the physical outputs short-circuits, all outputs are set to 0 by the down
counting module. In spite of this, as long as the short circuit is present, physical
outputs on 0 must be blocked for safety reasons:
l whatever the mode, (manual or automatic), you must disable output: set
physical output enabling bits to 0,
l in manual mode: program a set to 0 of physical output manual command
objects.
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
Principle of
manual
reactivation
The short-circuit fault bit is set on 1 as soon as a short-circuit appears. The output
reactivation bit must be enabled to reactivate physical output, providing the
manual reactivation mode has been configured.
The program can, for example, wait until an acknowledgement button has been
pressed before activating this bit.
Reactivation will take effect at least 10 seconds after the short-circuit has been
detected, providing that the short-circuit is no longer present. To find out the
associated language objects, see implicit objects (See Details of implicit exchange
objects, p. 169) and explicit objects (See Breakdown of objects for user defined
exchange, p. 177).
The time diagram below shows how a short-circuit is manually acknowledged.
Appearance of
a short-circuit
Disappearance
of a short-circuit
Physical state
Q0output
10 seconds
10 seconds
Reactivation
of outputs
1 second
Short-circuit
error
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89
Standard functions of the TSX CTY•• counting modules
Principle of
automatic
reactivation
Reactivation is automatically requested by the module every 10 seconds. The basic
time of 10 seconds is synchronous in relation to the appearance of the fault.
The time diagram below shows how a short-circuit is automatically acknowledged.
Appearance of
a short-circuit
Disappearance of
a short-circuit
Physical state
Q0output
10 seconds
10 seconds
10 seconds
Time base
system of
reactivation
1 second
Short-circuit
error
90
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
3.8
Description of the speed measuring function
for the TSX CTY 2C module
Overspeed monitoring function (TSX CTY2C)
At a Glance
Overspeed monitoring, via a user-adjusted speed limit, enables safety action to be
applied to output(s) where the overspeed limit has been exceeded (outputs are then
set to 0). These outputs must be configured automatically.
Operation
The figure below shows the changes in reflex outputs following configuration
(example using Q0 output).
Speed
Overspeed threshold
Position
or time
Overspeed fault
End of fault
Fault
acknowledgement
If fault storage has been configured
Automatic
mode output Q0
If fault storage has not been configured
Automatic
mode output Q0
TLX DS 57 PL7 40E 09/2000
91
Standard functions of the TSX CTY•• counting modules
Storing faults
When an output is automatic:
l if fault storing has been configured: when a fault has disappeared, it must be
acknowledged in order to reposition the output to its initial state before the fault.
Acknowledging a fault prematurely has no effect.
l if fault storing has not been configured: the disappearance of an overspeed fault
repositions output to its initial state.
Note: output in
manual mode
Outputs in manual mode are not affected by an overspeed fault, and retain their
state.
Selecting the
measurement
period
By default, the measurement period is 1 second, which can lead to an excessive
delay in detecting overspeed, or insufficient precision. The measurement period can
be programmed according to the speed to be monitored and precision sought:
Measuring period
1
precision x speed
where the precision is shown in decimal value (for example: 0.1% = 0.001) and
speed in pulses/second. The sampling period is acquired in seconds.
Permissible values range from 10-2 s to 30 s.
The following table gives the minimum measurement period according to the speed
to be measured, in order to guarantee precision within 0.1%.
92
Speed to be measured
(pulses/second)
Minimum measurement period
(s)
Precision
(%)
250 000 ...1 000 000
Greater than or equal to 10-2
0,1
40 000 ... 250 000
Greater than or equal to 25 10-3
0,1
10 000 ... 40 000
Greater than or equal to 0.1
0,1
1 000 ...10 000
Greater than or equal to 1
0,1
100 ...1 000
Greater than or equal to 10
0,1
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
3.9
Description of the special functions of
the TSX CTY 2C counting module
At a Glance
Subject of this
section
This section describes the three special functions for the TSX CTY 2C counting
module.
What’s in this
Section?
This Section contains the following Maps:
TLX DS 57 PL7 40E 09/2000
Topic
Page
Special function number 1 (TSX CTY2C)
94
Special function number 2 (TSX CTY2C)
95
Special function number 3 (TSX CTY2C)
96
93
Standard functions of the TSX CTY•• counting modules
Special function number 1 (TSX CTY2C)
At a Glance
Special function number 1 calculates the time elapsed between the last up/down
count pulse and a capture event. The time between the last pulse and the capture
is expressed in milliseconds with an accuracy within + or – 1ms.
Operation
The time diagram below shows how special function number 1 operates.
final pulse before
capture
capture done
time
94
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
Special function number 2 (TSX CTY2C)
At a Glance
Special function number 2 triggers a direct (software) capture and a direct (software)
preset of the up/down counter on the counting channel. These two events are
synchronized with the programmable output frequency (this output must not be used
externally in this case).
Each rising edge of the programmable frequency output of the counting channel
enables a direct (software) capture of the counter value followed by a direct
(software) preset.
Operation
The principle of special function number 2 is shown below:
- direct capture
- direct preset
- direct capture
- direct preset
Programmable
frequency output
Notes
TLX DS 57 PL7 40E 09/2000
The following language objects behave differently in relation to the standard direct
capture and preset functions:
l the %Ixy.i.2 capture done bit is then positioned on 1 (standard direct capture
does not set this bit to 1),
l the %Ixy.i.1 preset done bit is then positioned on 1 (standard direct preset does
not set this bit to 1),
For more information on associated language objects, see default objects
(See Details of implicit exchange objects, p. 169).
95
Standard functions of the TSX CTY•• counting modules
Special function number 3 (TSX CTY2C)
At a Glance
Special function number 3 is an extension of the speed monitor and measurement
function. It enables the counting and measurement channel to:
l monitor the correct speed, corresponding to the boolean function:
(Target speed - X% < Speed measure) AND (Speed measure <Target speed + X%)
l and detect a stationary moving part, which corresponds to the following
boolean function:
(Speed measure < Stop speed)
Function
parametering
Tolerance on the X% speed is a configuration parameter completed by the user.
The Target speed and the Stop speed are adjustment parameters set by the
application program using a WRITE_PARAM %CHxy.i (List of explicit exchange
objects, p. 176) or a variables animation table in online mode.
Operation
The time diagram below shows the principle of special function number 3.
Speed
+X%
Target speed
-X%
Stop
speed
Position or
time
Correct
speed
(1) Significant
Moving part
stationary
1. Significant zone, no other zone for correct speed or stationary moving part is significant.
Notes
96
Correct speed and Moving part stationary information is only significant for speed
plateaus. Managing the relevance of this information is the responsibility of the
application program.
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
3.10
Description of how counting modules
deal with faults
At a Glance
Subject of this
section
This section describes how faults are processed which can occur in a counting
application. It also describes the tools provided by the counting modules to detect
and deal with them.
What’s in this
Section?
This Section contains the following Maps:
Topic
Introduction to dealing with channel and module faults
How to deal with an invalid measurement
Dealing with faults (TSX CTY2C)
TLX DS 57 PL7 40E 09/2000
Page
98
99
101
97
Standard functions of the TSX CTY•• counting modules
Introduction to dealing with channel and module faults
At a Glance
Counting modules can indicate and identify faults occurring in their configuration
and during operation. These indication/identification functions vary according to the
type of module.
In addition, module outputs have fallback modes, which are either preset or can be
configured, in order to ensure safe operation. Output behavior is described in detail
in the Description of physical outputs associated with counting modules, p. 77
section.
Dealing with
TSX CTY 2A / 4A
module faults
These modules indicate that a fault has occurred, shown by the following default
exchange language objects:
l channel error (%Ixy.i.ERR)
l module error (%Ixy.MOD.ERR)
l invalid measurement (%IxWxy.i.2:X7)
The application can identify the cause of the fault by examining the status words.
This is only possible if the fault is still present when the processing takes place.
Dealing with
TSX CTY 2C
module faults
This module uses the same language objects as before to indicate the occurrence
of faults.
However, in addition, it has functions for:
l storage, which is used to acknowledge and identify temporary faults,
l and masking, which is used selectively to avoid certain faults being brought up
again.
98
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
How to deal with an invalid measurement
At a Glance
Fault context
Invalid measurement information is available to the user, in addition to diagnostics.
It is used to detect a loss of counting or measurement data.
This fault management, which is similar to latching, is provided in all counting
modules.
Faults can be indicated by:
l a cold start or warm restart of the application,
l a fault on counting input:
l a power supply fault or a break in the sensor line (proximity detector or
encoder),
l a series frame transmission error (TSX CTY 2C),
l a specific absolute encoder fault (TSX CTY 2C),
l exceeding the capacity of the counting register,
l exceeding the speed threshold (TSX CTY 2C).
In this case the contents of the counting register cannot be used and counter outputs
are set to 0. If this happens, the Invalid measurement bit (%IWxy.i.2:X7) is set to 1.
When the register is initialized or re-initialized by presetting (or reset) and as long as
none of the faults above are still present, the Invalid measurement bit switches to 0.
Notes
l The Invalid measurement bit set to 1 does not give any information about the
fault which caused it. To find this out, the application must examine status words
%MWxy.i.2 and 3 (See Breakdown of objects for user defined exchange, p. 177),
as long as the fault is still there (TSX CTY 2C).
l Masked faults do not trigger the Invalid measurement indicator (TSX CTY2C).
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99
Standard functions of the TSX CTY•• counting modules
How to manage
the incident
The procedure for managing and removing the invalid measurement by the
application is as follows:
Warm restart
or
cold start
Counter
preset/reset
Invalid
measurement
bit
is it at 1?
YES
Application fault
management
NO
Normal operation
100
TLX DS 57 PL7 40E 09/2000
Standard functions of the TSX CTY•• counting modules
Dealing with faults (TSX CTY2C)
At a Glance
The TSX CTY2C module has two independent and additional functions, which can
be configured by the user, for dealing with channel faults:
l Storing is used to indicate occurrence of a fault, however temporary.
l Masking certain faults enables the application to continue operating in
downgraded mode.
These two functions are selected using the configuration screen (See Description of
the configuration screen for a counting module, p. 104).
Principle of
fault storing
Storing is used to:
l indicate to the application the occurrence of a fault, temporary or otherwise,
shown by the channel error bit %Ixy.i.ERR and the module error bit
%Ixy.MOD.ERR (implicit exchanges),
l and identify it via status words (explicit exchanges).
In the absence of a latch, there is a risk that temporary faults will not be detected in
the regular scans by the processor, for these language objects are reset to zero as
soon as the fault has disappeared.
Principle of
masking faults
Masking involves preventing, according to the situation, channel error bits, module
error bits and I/O and ERR LEDS being set. The faults concerned are selected
individually (fault masking by default).
Note: In the event of an error whether masking was enabled or not, outputs will
change to fallback mode to ensure safety, and the CH LED will flash.
Masked faults therefore risk being ignored by the application. Nevertheless, the
application can access the fault warning if the COUNT_FLT bit test (%Ixy.i.3) has
been programmed.
Status words continue to be positioned normally, whether faults are masked or not.
Important notes
l Even if a fault has been unmasked, it can pass unnoticed by the application if the
store has not been configured, and if this fault is temporary.
l There is also another parallel function which indirectly indicates faults linked to
counting, using an Invalid measurement (See How to deal with an invalid
measurement, p. 99) which has been detected.
Principle of
reading and
acknowledging
faults
TLX DS 57 PL7 40E 09/2000
When the fault has been indicated to the processor, the latter must read the module
status words using a READ_STS instruction.
Module status words are reset to zero when:
l the fault(s) have disappeared,
l and if there is a latch, after the acknowledgement command (bit %Qxy.i.3).
101
Standard functions of the TSX CTY•• counting modules
102
TLX DS 57 PL7 40E 09/2000
Configuration of the TSX CTY2A,
TSX CTY4A and TSX CTY 2C
modules
4
At a glance
Subject of this
chapter
This chapter describes the different configuration options of the TSX CTY2A,
TSX CTY4A and TSX CTY2C modules.
What’s in this
Chapter?
This Chapter contains the following Maps:
TLX DS 57 PL7 40E 09/2000
Topic
Page
Description of the configuration screen for a counting module
104
How to configure the counting inputs (TSX CTY 2A/4A)
106
How to configure the counting and measurement inputs (TSX CTY 2C)
107
How to configure an absolute encoder interface (TSX CTY 2C)
110
How to configure the capture of a counting register
113
How to configure preset or reset in a counting function
114
How to configure event processing
115
How to configure the combined input IEna/Q2 (TSX CTY 2C)
116
How to program multiplexing of absolute encoders with parallel outputs
117
How to configure operation on switch to zero or setpoint crossing
119
How to configure the behavior of faulty outputs
120
How to configure a special function (TSX CTY2C)
122
103
Configuration
Description of the configuration screen for a counting module
General
The configuration screen is a graphic tool used to configure a module selected from
a rack. It displays the parameters associated with the module channels and is used
to modify them in both offline and on-line modes.
It also enables access to adjustment and debugging screens
(only in on-line mode for the latter).
Note: refer to the Common application functions section to see how to configure,
adjust and debug an application.
Note: it is not possible to configure a module with the program by using language
objects %KW directly. These words are accessed in read-only format.
Illustration
The diagram below shows a configuration screen.
1
2
3
4
TSX CTY 2C [ RACK0
POSITION 5 ]
Configuration
Reference: MOD.COMPT.MESURE 2 VOIES
Symbol:
Channel:
Channel 0
Function:
Task:
Up/Down counting and measurement MAST
Input interfaces
Configuration...
Counting pulses
IPres rising edge
Fallback mode
Reset
Capture on ICapt
Maintain
Event
Preset on IPres
5
EVT
ICapt rising edge
Special functions
Capture before preset on IPres
Enabling on IEna or output Q2
Enable input on IEna
Output Q2
104
Resetting the outputs
Manual
Automatic
Faults
Storing
Num.:
Masking…
0
Parameter:
0
0
0
0
TLX DS 57 PL7 40E 09/2000
Configuration
Description
TLX DS 57 PL7 40E 09/2000
The table below shows the different elements of the configuration screen and their
functions.
Address Element
Function
1
Title bar
Calls up the reference for the selected module and its
geographical address (rack number and physical position in the
rack).
2
Command
zone
Shows the mode in progress (Configuration in this example)
and is used to select the other modes:
l Adjusting
l Debugging (or diagnostics), can only be accessed in on-line
mode.
3
Module zone
Calls up the abbreviated name of the module.
4
Channel field
Is used to select the counting channel to be configured and the
associated counting function:
l Symbol: channel name set by the user (using the variables
editor).
l Counter or Channel: counter number, i.e. of the module
channel.
l Function: counting function from those available for the
module concerned. Depending on this selection the headings
of the configuration field can differ. By default, No function is
configured.
l Task: defines the (MAST or FAST task in which the channel
default exchange objects will be exchanged.
5
Configuration
zone
Is used to configure the channel parameters. This field contained
various headings, displayed according to the counting function
selected. Some selections can be fixed and appear grayed out.
In this example, the headings Input interface and Masking
have a button which accesses a sub-menu which must be
completed.
105
Configuration
How to configure the counting inputs (TSX CTY 2A/4A)
At a Glance
The counting modules TSX CTY 2A and 4A have several possible input interface
types, according to the selected counting function. The interface is configured using
the configuration editor.
Procedure
The table below summarizes the procedure for configuring the input interface for a
TSX CTY 2A or 4A.
Step
Action
1
Access the module configuration screen required.
2
In the Channel field: select the counter (i.e. the channel) concerned and its function.
3
In the Input interfaces field, select from the drop-down list in the first field:
Input interfaces
IA up/down counts, application direction
Solid state contact
Line check
Multiplication
by 1
by 4
l the type of input interface.
The details of the different types of interface are described in the section named
Description of counting module input interfaces, p. 38.
Note: In up or down counting only, the IA Input selection is frozen.
106
4
Select input filtering from the drop-down list of the second field:
l Solid state contact (reduced filtering), or
l Mechanical contact (anti-rebound filtering, pulse frequency limited to 100 Hz).
5
If an incremental encoder interface was selected at step 3, fill in the following fields,
otherwise, go to step 6 to complete the configuration:
l Line check (is used to indicate a channel fault in the event of a break in the
physical connection of the encoder).
l Multiplying by 1 or by 4 (is used to increase counting accuracy at the expense
of maximum frequency).
6
Configuration of the input interface is complete.
Confirm the new configuration. To do this:
l pull down the Edit menu and select the Enable command.
TLX DS 57 PL7 40E 09/2000
Configuration
How to configure the counting and measurement inputs (TSX CTY 2C)
At a Glance
TLX DS 57 PL7 40E 09/2000
The TSX CTY 2C speed counting and measurement module has several possible
input interface types. The interface is configured using the configuration editor.
107
Configuration
Procedure
The table below summarizes the procedure for configuring a TSX CTY 2C module
input interface.
Step
Action
1
Access the module configuration screen required.
2
In the Channel field: select the counter (i.e. the channel) concerned and its function.
3
In the Input interface field, select from the drop-down list
Input interfaces
Configuration...
Counting pulses
l
the type of input interface:
l Counting pulses,
l Incremental encoder or
l Absolute encoder.
4
Click on the Configuration button to access these details.
5
The following screen entitled Input interface details depends on the type of interface chosen in step 3:
l Counting pulses interface: choose the configuration for the physical inputs IA,
IB, IZ, then the filtering (signal frequency limit).
Details of input interface
Input interface: COUNTING PULSES
Counting pulses:
IA up/down counts, IB direction
Filtering:
Solid state contact < 250 kHz
Measurement inversion
Modulo
Enable
l
l
6
108
Cancel
Incremental encoder interface: choose the filtering, while taking into account
the multiplication by 1 or by 4.
Absolute encoder interface: refer to the part How to configure an absolute encoder interface (TSX CTY 2C), p. 110.
Then select, according to the application:
Measurement inversion (invert the measurement change direction given by the
input definition).
l The modulo mode and its value.
l
TLX DS 57 PL7 40E 09/2000
Configuration
TLX DS 57 PL7 40E 09/2000
Step
Action
7
Configuration of the input interface is complete.
Confirm the new configuration. To do this:
l enable the Input interface details screen,
l pull down the Edit menu and select the Enable command.
109
Configuration
How to configure an absolute encoder interface (TSX CTY 2C)
At a Glance
Module TSX CTY 2C as well as having counting pulse inputs, has a specific
interface for data acquisition:
l of data from a series output absolute encoder (SSI),
l or of data from one of four parallel output absolute encoders, with adaptation
base(s) ABE-7CPA11.
Procedure
The table below shows the interface configuration steps.
Step
1
Action
Follow the general procedure for the TSX CTY 2C module How to configure the
counting and measurement inputs (TSX CTY 2C), p. 107 to start configuring, as far
as the next Input interface details entry screen.
Details of input interface
Input interface: ABSOLUTE SSI ENCODER
Encoder
Binary
Gray code Measurement inversion
SSI Frame
Transmission frequency:
Header
No. of header bits:
200 kHz
0
Data
No. of encoder data bits:
No. of most significant bits
masked:
Resolution reduction:
Modulo
65 536
Enable
Multiplexing
Line check
Status
No. of status bits: 0
Error bit
16
0
0
Parity
Parity bit
Frame:
x16x
Cancel
Some headings are frozen, or not displayed, according to the type of encoder output
(series or parallel).
110
2
Fill in the accessible headings according to the following table.
3
Confirm the new configuration. To do this:
l enable the entry screen above,
l pull down the Edit menu and select the Enable command.
TLX DS 57 PL7 40E 09/2000
Configuration
Definitions and
heading options
Zone
Encoder
SSI Frame
Header
Data
The table below shows the possible definitions and heading options on the Input
interface details screen according to the type of absolute encoder output.
Heading
SSI Series output encoder
Parallel output encoder(s)
Binary or Gray
Coding type.
idem series output
Measurement
inversion
Invert the measurement change
direction to a rotation direction given
by the encoder.
idem series output
Multiplexing
Does not exist.
Authorizes encoder multiplexing by
the application (See How to program
multiplexing of absolute encoders
with parallel outputs, p. 117)).
Transmission
frequency
150, 200 (by default), 375, 500, 750
kHz or 1 MHz.
idem series output
Line check
Line check selection (rupture or short Frozen: line check control present.
circuit).
Number of header
bits
0 to 4 (0 by default)
Frozen at 0.
No. of encoder data
bits
8 to 25 (16 by default)
8 to 24 (24 by default)
No. of masked MSBs
0 to 17 (0 by default)
0 to 16 (0 by default)
Reducing the
resolution
0 to 17 (least significant masked bits, 0 to 16 (0 by default).
0 by default).
Limit: No. of encoder data bits – No. of most significant masked bits – No. of least significant masked
bits > 8 active data bits.
Modulo
TLX DS 57 PL7 40E 09/2000
Frozen (depending on the number of idem series output
active data bits).
111
Configuration
Zone
Heading
SSI Series output encoder
Parallel output encoder(s)
No. of status bits
0 to 4 (0 by default)
Frozen at 3.
Error bit
none by default. To gain access to
this choice, the number of status bits
must be > 1.
none by default.
Position
1 to 4 (1 by default). The heading
only appears if the error bit is
selected.
Frozen at 3. The heading only
appears if the error bit is selected.
Active at 0/1
Error bit active level (1 by default).
idem series output
The heading only appears if the error
bit is selected.
Parity bit
none by default. The choice of parity Frozen: with, even parity.
only appears if the bit is selected. If
the parity is odd, the number of status
bits is limited to 3.
Status
Parity
Frame
112
Information: summary of the series
frame characteristics.
idem series output
TLX DS 57 PL7 40E 09/2000
Configuration
How to configure the capture of a counting register
At a Glance
This parameter defines how to capture the current counting register value at a
precise moment defined by the signal on the physical input ICapt. This function only
exists in up/down counting (TSX CTY 2A / 4A) and up/down counting and
measurement (TSX CTY 2C).
Hardware capture configuration is defined in the Capture on ICapt zone in the
configuration screen. There are two available options:
l capture on rising edge,
l capture on falling edge.
Notes
So that capture takes place correctly, it must be enabled beforehand by the software
using the corresponding language objects (See Software commands, %Qxy.i.r bits,
p. 172), run by the application.
Direct capture by the software does not require the following procedure to be set up.
Procedure
The table below summarizes the procedure for configuring hardware capture with
TSX CTY 2A, 4A and 2C modules.
Step
Action
1
Access the module configuration screen required.
2
In the Channel zone select or enable the counter selection (i.e. the channel)
involved and its function.
3
In the Capture on ICapt zone click on the drop-down menu button.
Result: the list of options below appears.
Capture on Capt
ICapt falling edge
ICapt rising edge
ICapt falling edge
ICapt rising and falling edges
TLX DS 57 PL7 40E 09/2000
4
Select the hardware capture edge required.
5
Hardware capture configuration is complete.
If there are no more parameters to configure, enable the new configuration.
To do this:
l scroll down the Edit menu and select the Enable command.
113
Configuration
How to configure preset or reset in a counting function
At a Glance
This parameter defines the initialization mode of the counting register at a moment
defined by the signal on the IPres physical input or IReset (depending on the
counting function).
Configuring hardware preset or reset is defined in the Preset on IPreset zone or
Reset on IReset zone in the configuration screen.
Notes
l So that the hardware preset IPreset or Reset IReset does take place, it must first
be enabled by the software using the corresponding language objects
(See Software commands, %Qxy.i.r bits, p. 172), run by the application.
l Direct presetting or resetting by the software does not require implementation of
the following procedure.
l The preset value is defined in the adjustment screen (See How to adjust the
preset value, p. 129).
Procedure
The table below summarizes the hardware preset configuration procedure for the
TSX CTY 2A, 4A and 2C modules.
Step
Action
1
Access the module configuration screen required.
2
In the Channel zone select or enable the counter selection (i.e. the channel)
involved and its function.
3
In the Preset on IPres or Reset on IReset zone click on the drop-down menu
button.
Result: a list of options similar to this one appears. The options that are actually
available depend on the type of module and the counting function selected.
Preset on IPres
IPres rising edge
IPres falling edge
IPres rising edge +direction/IPres Falling edge -direction
IPres rising edge -direction/IPres falling edge +direction
IPres
Original short cam port
114
4
Select the hardware preset (or reset) required.
5
Hardware preset (or reset) configuration is complete.
If there are no more parameters to configure, enable the new configuration.
To do this:
l scroll down the Edit menu and select the Enable command.
TLX DS 57 PL7 40E 09/2000
Configuration
How to configure event processing
At a Glance
This parameter is used to associate event processing to the counting channel.
This configuration is defined in the Event zone of the configuration screen.
Procedure
The table below summarizes the procedure for configuring event processing for all
TSX CTY 2A, 4A and 2C modules.
Step
Action
1
Access the module configuration screen required.
2
In the Channel zone select or enable the counter selection (i.e. the channel)
involved and its function.
3
In the Event zone, check the EVT box.
Event
EVT
TLX DS 57 PL7 40E 09/2000
31
4
Select the number of the event task which is associated to the counting channel
(this task must then be programmed).
5
Configuration of the event processing is complete.
If there are no more parameters to configure, enable the new configuration.
To do this:
l scroll down the Edit menu and select the Enable command.
115
Configuration
How to configure the combined input IEna/Q2 (TSX CTY 2C)
At a Glance
This parameter defines the use of this combined input/output:
l either as counter enable input IEna,
l or as physical output Q2 (in manual mode).
These parameters are set in the Enable on IEna or Q2 output zone in the
configuration screen.
Procedure
The table below summarizes the procedure for configuring the combined
input/output IEna / Q2 of the TSX CTY 2C module.
Step
Action
1
Access the module configuration screen required.
2
In the Channel zone select or enable the counter selection (i.e. the channel)
involved and its function.
3
In the Enable on IEna or Q2 output zone, click on the button corresponding to the
required option.
Enabling on IEna or output Q2
Enable input on IEna
Output Q2
4
116
Configuration of the combined input/output IEna/Q2 is complete.
If there are no more parameters to configure, enable the new configuration.
To do this:
l scroll down the Edit menu and select the Enable command.
TLX DS 57 PL7 40E 09/2000
Configuration
How to program multiplexing of absolute encoders with parallel outputs
At a Glance
Each channel of the TSX CTY 2C module is used to acquire the signals supplied by
an absolute encoder with parallel outputs, via a series frame, using adaptation
TELEFAST ABE-7CPA11. Use of several TELEFASTs enables up to 4 absolute
encoders with parallel outputs to be multiplexed on the same channel.
Multiplexing is managed by the counting application.
Principals of
multiplexing
The encoders are addressed by two discrete outputs (belonging to the TSX CTY 2C
module, preferably Q2 and Q3 outputs, or to a discrete module). These outputs are
looped onto the dedicated TELEFAST inputs. This sends the acquisition value and
the address of the present encoder to the TSX CTY 2C module.
The context linked to the encoder (offset value, threshold values, SET and RESET
values of the switches), which must change when a new encoder is addressed, is
controlled by the application program.
Furthermore, this must take into account the fact that the information regarding
position/crossing of thresholds, rollover, the speed value and the overspeed fault is
invalid when an encoder is being changed.
Analysis of
multiplexing
This operation involves the following steps for each absolute encoder and at each
acquisition:
Step
1
TLX DS 57 PL7 40E 09/2000
Action
Application loading of the context for the encoder concerned.
2
Application addressing of the encoder concerned.
3
Acquisition of data.
4
Possible wait linked to the acquisition period, then return to step 1 to process the
next encoder.
117
Configuration
Multiplexing
flowchart
The diagram below shows an example of how to program multiplexing:
Step 0
- Setting addressing outputs (Q2, Q3)
in manual mode (Q2, Q3).
- Encoder i parameter loading
(WRITE_PARAM).
WRITE_PARAM complete: no adjustment in progress
ET encoder test for addressing outputs.
Step 1
- Initial fault processing.
- Fault acknowledgment.
No channel error ET no invalid measurement
Step 2
- Event unmasking during
event processing.
- Fault processing.
Step 3
- Current value acquisition.
- Dealing with setting information
in relation to the thresholds and modulo.
- Event processing.
Step 4
118
- Event unmasking during configured
event processing.
TLX DS 57 PL7 40E 09/2000
Configuration
How to configure operation on switch to zero or setpoint crossing
At a Glance
This parameter defines the automatic reset mode of a TSX CTY 2A /4A module’s
counting register:
l on switch to the value zero (only during down counting),
l on high setpoint crossing (only during up counting).
This configuration is defined in the Operation on switch to 0 or Operation on
setpoint crossing zone in the configuration screen.
Notes
l These operations are similar to automatic preset or reset respectively. They do
not require any preset or reset software enabling.
l The setpoint values are defined in the adjustment screen.
Procedure
The table below summarizes the procedure for configuring the operation on zero
value crossing or high setpoint crossing of the TSX CTY 2A and 4A modules.
Step
Action
1
Access the module configuration screen required.
2
In the Channel zone select or enable the counter selection (i.e. the channel)
involved and its function.
3
In the Operation on switch to 0 or Operation on setpoint crossing zone, click on
the button corresponding to the required option.
Operation on switch to 0
Without down counter preset
With down counter preset
Action when crossing setpoint
Without counter reset
With counter reset
4
TLX DS 57 PL7 40E 09/2000
Configuration of the operation on zero or setpoint crossing is complete.
If there are no more parameters to configure, enable the new configuration.
To do this:
l scroll down the Edit menu and select the Enable command.
119
Configuration
How to configure the behavior of faulty outputs
At a Glance
These parameters define the behavior of physical outputs of a channel on
TSX CTY 2A, 4A and 2C modules when faults occur due to a voltage surge or
short-circuit:
l reactivation of outputs,
l fallback mode.
These configurations are defined in the zones of the same name in the configuration
screen.
CAUTION
Ensure that the desired configuration, and in particular the
reactivation mode, is compatible with the operation safety
requirements
Failure to observe this precaution can result in injury or
equipment damage.
Note
120
Configurations defined in this way are only valid when there is an overload or
short-circuit of one or more outputs. In the event of a different kind of fault, the
fallback mode is predefined according to the fault and the module type
(see Description of physical outputs associated with counting modules, p. 77).
TLX DS 57 PL7 40E 09/2000
Configuration
Procedure
The table below summarizes the procedure for adjusting the behavior of faulty
outputs.
Step
Action
1
Access the module configuration screen required.
2
In the Channel zone select or enable the counter selection (i.e. the channel)
involved and its function.
3
In the Reactivation of outputs zone, select:
Manual or
Automatic
l
l
Resetting the outputs
Manual
Automatic
Fallback mode
Reset
Maintain
TLX DS 57 PL7 40E 09/2000
4
In the "Fallback mode" zone, select:
l Reset or
l Maintain
5
Configuration of physical output behavior is complete.
If there are no more parameters to configure, enable the new configuration.
To do this:
l scroll down the Edit menu and select the Enable command.
121
Configuration
How to configure a special function (TSX CTY2C)
At a Glance
The special functions of the TSX CTY2C module are used to respond to certain
particular needs that are not covered by the standard functions.
The table below shows the objects of these functions and the numbers of the version
required for the module:
Function
No.
Description
Version
module
1
Time lapsed between the last pulse and a hardware capture
occurrence.
1.0
2
Triggering a direct and synchronized capture and preset with each
rising edge of the programmable frequency output.
1.0
3
Speed checks correct and moving part stationary.
1.1
Functions that are specific to a case can also be developed.
Compatibility of
special functions
Any attempt to configure a counting module with an unsupported special function will
result in an application error.
The counting module version is indicated:
l on the product reference label on the right-hand side of the module,
l in the Module zone of the debugging screen (on-line mode).
Configuring
several special
functions
It is possible to configure two special functions simultaneously if they are not
exclusive, that is to say if there is no overlap between their language objects.
In practice, these are functions nos. 1 and 2.
The table below summarizes the properties of reciprocal exclusions.
Funct. No. 1
Funct. No. 2
Funct. No. 3
Funct. No. 1
-
Non exclusive (1)
Exclusive
Funct. No. 2
Non exclusive (1)
-
Exclusive
Funct. No. 3
Exclusive
Exclusive
-
(1) When special functions 1 and 2 are used simultaneously, the time calculation of
special function number 1, %IDxy.i.11, can only be accessed in a Fast or Mast task,
on capture done %Ixy.i.2=1.
122
TLX DS 57 PL7 40E 09/2000
Configuration
Procedure
The table below summarizes the procedure for configuring the special functions of
the TSX CTY2C module.
Step
Action
1
Access the module configuration screen required.
2
In the Channel zone select or enable the counter selection (i.e. the channel)
involved and its function.
3
In the Special functions zone, enter the number of the special function in one of
the Num fields.
Special functions
Num.:
Parameter:
0
0
0
0
0
Enter the number of the second special function, if necessary. A zero means that no
function has been selected.
TLX DS 57 PL7 40E 09/2000
4
Complete the Parameter field if necessary, for special function number 3
See Special function number 3 (TSX CTY2C), p. 96) for example.
5
Special function(s) configuration is complete.
If there are no more parameters to configure, enable the new configuration.
To do this:
l scroll down the Edit menu and select the Enable command.
123
Configuration
124
TLX DS 57 PL7 40E 09/2000
Adjustment of the data modules
TSX CTY2A, TSX CTY4A
and TSX CTY2C
5
At a Glance
Subject of this
chapter
This chapter describes the different adjustment options of the TSX CTY2A,
TSX CTY4A and TSX CTY2C modules.
What’s in this
Chapter?
This Chapter contains the following Maps:
TLX DS 57 PL7 40E 09/2000
Topic
Page
Description of the adjustment screen of a counting module
126
How to adjust the offset value of an absolute encoder
128
How to adjust the preset value
129
How to adjust channel fault processing (TSX CTY2C)
130
How to adjust threshold and set point values
131
How to adjust the speed measurement and monitoring function
132
How to adjust the frequency output period (TSX CTY2C)
133
How to adjust the switch change of status conditions
134
125
Adjustment
Description of the adjustment screen of a counting module
General
The adjustment screen displays adjustment parameters for the module and is used
to modify them in both offline and on-line mode.
It also gives access to configuration and debugging screens.
The structure of the adjustment screen is very similar to that of the configuration
screen.
Note: consult the Common task functions section to see how to configure, adjust
and debug an application.
Note: the adjustment screen is a graphic tool for facilitating an application
development. Unlike in configuration, it is possible to program adjustments by
using language objects directly.
Illustration
The diagram below shows an example of an adjustment screen.
1
2
3
4
TSX CTY 4A [RACK 0 POSITION 4]
Adjust
Reference: MOD.COMPT.4VOIES 40KHZ
Symbol:
Counter:
Counter 0
Function:
Up/Down counting
Preset value
State of switches
100
5
Initial value 0
Threshold value
200
Threshold 0
0
Initial value
300
Threshold 1
Initial value
0
Setpoint values
500
High
0
Initial value
Low
Initial value
126
Switch status
50
0
Changing switch state on
Crossing threshold 0 in + direction
Crossing threshold 0 in - direction
Captured value>= threshold 0
Captured value < threshold 0
Crossing threshold 1 in + direction
Crossing threshold 1 in - direction
Captured value >= threshold 1
Captured value <threshold 1
High setpoint crossing in + direction
High setpoint crossing in - direction
Value captured >= high setpoint
Low setpoint crossing in + direction
Low setpoint crossing in - direction
Actions:
Set
Reset
B0 B0i B1 B1i
R R
S
S
None
TLX DS 57 PL7 40E 09/2000
Adjustment
Description
Current value
and initial value
The table below shows the different elements of the adjustment screen and their
functions.
Address Element
Function
1
Title bar
Shows the selected module’s reference and geographical
address (rack number and physical position in the rack).
2
Command
zone
Shows the screen in progress (Adjustment) and is used to
switch to or switch back to other screens:
l Configuration,
l Debugging (or diagnostics), can only be accessed in on-line
mode.
3
Module zone
Shows the abbreviated name of the module.
4
Channel zone
Is used to select the channel to be adjusted and the heading for
setting switch parameters:
l Symbol: channel name set by the user (using the variables
editor).
l Counter: counter number, i.e. of the module channel.
l Function: calls up the configured counting function. This
heading is fixed.
l Switch status: box to be checked if you wish to set latch
change of status parameters. Otherwise, the heading does
not appear in the adjustment field.
5
Adjustment
field
This field contains various headings to be completed (parameter
values), displayed according to the counting function selected.
For each heading two values appear:
l the entered value which can be modified, in one window,
l and the initial value which cannot be directly modified.
The behavior of these values depends on the PLC connection mode.
l In offline mode: after enabling (Edit → Enable command), the entered value
becomes the initial value and appears in the corresponding field. On transfer the
initial value becomes the current value.
l In on-line mode: after enabling, the entered value becomes the current value.
The Edit → Save adjustment parameters command is used to copy the current
value in the initial value.
Note: the initial value is the one that the parameter concerned takes when the PLC
starts from cold.
TLX DS 57 PL7 40E 09/2000
127
Adjustment
How to adjust the offset value of an absolute encoder
At a Glance
This parametering is an option when the input interface of the TSX CTY 2C module
is configured for a series output absolute encoder.
This parameter is used to perform a shift from zero by adding the offset value to the
current value supplied by the encoder.
Parameters are set in the Offset value zone in the adjustment screen.
For encoders
with parallel
outputs
For multiplexed encoders with parallel outputs, the offsets must be managed by the
application (See How to program multiplexing of absolute encoders with parallel
outputs, p. 117).
Procedure
The table below summarizes the procedure for adjusting the offset value.
Step
Action
1
Access the module adjustment screen required.
2
In the Channel zone select or enable the counter selection (i.e. the channel)
involved and its function.
3
In the Offset value zone enter the value desired.
Offset Value
100
Initial value
0
This value must be between: 0 and the rollover value (this mode is implicit for an
absolute encoder interface).
4
128
Offset value adjustment is complete.
l If there are no more parameters to be defined, enable the new adjustment with
the Edit → Enable command.
Note: in offline mode, the value entered is then copied again in the Initial value field.
In on-line mode, the value entered then becomes the current value.
TLX DS 57 PL7 40E 09/2000
Adjustment
How to adjust the preset value
At a Glance
This parameter defines the preset value (in down counting only or up/down
counting) i.e. the value reloaded in the counting register after:
l a hardware or software preset command, especially after an invalid
measurement,
l or automatic preset when switching to zero.
This parameter exists when the input is configured for counting pulses or an
incremental encoder.
Parameters are set in the Preset value zone in the adjustment screen.
Procedure
The table below summarizes the procedure for adjusting the preset value.
Step
Action
1
Access the module adjustment screen required.
2
In the Channel zone select or enable the counter selection (i.e. the channel)
involved and its function.
3
In the Preset value zone enter the required value.
Preset value
100
Initial value
100
This value must be between:
-16 777 216 and +16 777 215 in normal mode,
0 and the rollover value if this mode is configured (TSX CTY 2C).
l
l
4
TLX DS 57 PL7 40E 09/2000
Reset value adjustment is complete.
If there are no more parameters to be defined, enable the new adjustment with
the Edit → Enable command.
Note: in offline mode, the value entered is then copied again in the Initial value
field. In on-line mode, the value entered then becomes the current value.
l
129
Adjustment
How to adjust channel fault processing (TSX CTY2C)
At a Glance
The TSX CTY2C module has two independent channel fault processing
mechanisms which can be configured by the user:
l Storing enables the application to detect the occurrence of a fault temporary or
otherwise.
l Masking certain faults enables the application to continue operating in
downgraded mode (safeguards activated).
Procedure
The table below summarizes the procedure for configuring fault processing for a
TSX CTY2C module:
Step
Action
1
Access the adjustment screen of the TSX CTY2C module required.
2
In the Channel zone select or enable the counter selection (i.e. the channel)
involved and its function.
3
Under the Faults heading, check the Recording box if required or leave blank.
Fault
Storing
4
Masking…
Click on the Mask button. The following dialog box appears:
Mask faults
Faults
Auxiliary Inputs/Outputs: Power supply
Auxiliary Outputs: During short-circuit
Counting inputs: Encoder or proximity sensor supply
Counting inputs: Encoder line break or short-circuit
Counting inputs: SSI frame transmission fault
Enable
Cancel
5
Check the boxes corresponding to the faults which are to be masked.
The masked information is displayed next to each checked box.
6
Enable the dialog box.
7
130
Masking
Fault processing adjustment is complete.
If there are no more parameters to be defined, enable the new configuration with
the command Edit → Enable.
l
TLX DS 57 PL7 40E 09/2000
Adjustment
How to adjust threshold and set point values
At a Glance
These parameters define threshold values 0 and 1 and high and low setpoints.
These objects have very similar roles in comparisons.
Parameters are set in the Threshold value and Setpoint value zones in the
adjustment screen.
Procedure
The table below summarizes the procedure for adjusting threshold values.
Step
Action
1
Access the module adjustment screen required.
2
In the Channel zone select or enable the counter selection (i.e. the channel)
involved and its function.
3
In the Threshold values zone enter the required values.
Threshold
250
Threshold 0:
Initial value:
250
500
Threshold 1:
Initial value:
500
These values must be between:
-16 777 216 and +16 777 215 in normal mode,
0 and the rollover value if this mode is configured or implicit (TSX CTY2C,
absolute encoder interface).
Note: the respective values of threshold 0 and threshold 1 do not have to be in
this order.
l
l
4
In the Set point value zone enter the value(s) required; when they are defined
(depending on the module and the counting function configured).
Setpoint values
500
High
Initial value
0
Low
Initial value
0
50
These values must be between: -16 777 216 and +16 777 215.
5
TLX DS 57 PL7 40E 09/2000
Threshold and set point value adjustment is complete.
If there are no more parameters to be defined, enable the new adjustment with
the Edit → Enable command.
Note: in offline mode the value entered is then copied in the Initial value fields.
In on-line mode the values entered then become the current values.
l
131
Adjustment
How to adjust the speed measurement and monitoring function
At a Glance
This parametering is offered with the TSX CTY2C module.
The Speed monitoring zone is used to define:
l the overspeed threshold value,
l the speed measurement period.
Procedure
The table below summarizes the procedure for adjusting the speed measurement
and monitoring function.
Step
Action
1
Access the module adjustment screen required.
2
In the Channel zone select or enable the counter selection (i.e. the channel)
involved and its function.
3
In the Speed monitoring zone enter the required overspeed threshold value.
Speed monitoring
Overspeed threshold:
200
Initial value:
Measurement period:
Initial value:
200 pulses/s
10 ms
10
This value must be between: 1 and 4 000 000 pulses/s.
The value 0 inhibits the overspeed monitoring.
132
4
Enter the value of the measurement period according to the estimated pulse
frequency and the desired precision or response time (See Overspeed monitoring
function (TSX CTY2C), p. 91).
This value must be between: 10 and 30 000 ms.
5
Speed reading function and monitoring adjustment is complete.
l If there are no more parameters to be defined, enable the new adjustment with
the Edit → Enable command.
Note: in offline mode, the value entered is then copied again in the Initial value field.
In on-line mode, the value entered then becomes the current value.
TLX DS 57 PL7 40E 09/2000
Adjustment
How to adjust the frequency output period (TSX CTY2C)
At a Glance
The TSX CTY2C module has a Q3 output which can be programmed in automatic
mode to generate an adjustable period signal, destined for various uses
(for example: synchronization of several channels or modules).
Output configuration (automatic or manual) is controlled by the application, but it is
possible to modify it temporarily in the Debugging (See Debugging the data modules
TSX CTY2A, TSX CTY4A and TSX CTY2C, p. 137) screen.
Parameters for the signal period are set under the Frequency output heading in the
adjustment screen.
Procedure
The table below summarizes the procedure for adjusting the frequency output
signal period.
Step
Action
1
Access the module adjustment screen required.
2
In the Channel zone select or enable the counter selection (i.e. the channel)
involved and its function.
3
Under the Frequency output heading enter the required value.
Frequency output
Period:
Initial value:
2 ms
2
This value must be between: 0 and 4 000 000 ms, per 1 ms step.
4
TLX DS 57 PL7 40E 09/2000
The Q3 output period adjustment is complete.
If there are no more parameters to be defined, enable the new adjustment with
the Edit → Enable command.
Note: in offline mode, the value entered is then copied again in the Initial value field.
In on-line mode, the value entered then becomes the current value.
l
133
Adjustment
How to adjust the switch change of status conditions
At a Glance
134
Switch 0 and 1 change of status condition parameters can be set from the
adjustment screen.
There are a great number of these conditions and they depend on the module and
function configured. Priorities are defined in the Description of switches associated
with counting modules, p. 67 section.
TLX DS 57 PL7 40E 09/2000
Adjustment
Procedure
The table below summarizes the procedure for adjusting the change of status
conditions of switches 0 and 1.
Step
Action
1
Access the module adjustment screen required.
2
In the Channel zone select or enable the counter selection (i.e. the channel)
involved and its function.
3
Check the Switch status box.
A heading with the same name appears in the adjustment zone.
Status of switches
Changing switch status on
Crossing of threshold0 in +direction
Crossing of threshold0 in -direction
Captured value >= threshold0
Captured value <threshold0
Crossing of threshold1 in +direction
Crossing of threshold1 in -direction
Captured value >= threshold1
Captured value <threshold1
High setpoint crossing in +direction
High setpoint crossing in -direction
Value captured >= high setpoint
Low setpoint crossing in +direction
Low setpoint crossing in -direction
Actions:
TLX DS 57 PL7 40E 09/2000
Set
Reset
B0 B0i B1 B1i
R R
S
S
None
4
Under the heading Switch status:
select the box corresponding to the condition and the switch (0 or 1) concerned,
then click on the SET button (set to 1), the RESET button (set to 0), or the NONE
button (delete an existing value).
Note: the conditions are not shown in order of priority.
5
Adjust the other change of status conditions in the same way.
6
Adjustment of the switch change of status conditions is complete.
l If there are no more parameters to be defined, enable the new adjustment with
the Edit → Enable command.
Notes: in offline mode the values entered are then copied into the initial status fields
B0i and B1i. Priority rules also apply to initial values. In on-line mode the values
entered then become the current status values.
l
l
135
Adjustment
136
TLX DS 57 PL7 40E 09/2000
Debugging the data modules
TSX CTY2A, TSX CTY4A
and TSX CTY2C
6
At a Glance
Subject of this
chapter
This chapter describes the different debugging options of the TSX CTY2A,
TSX CTY4A and TSX CTY2C modules.
What’s in this
Chapter?
This Chapter contains the following Maps:
TLX DS 57 PL7 40E 09/2000
Topic
Page
Introducing the debugging screens
138
Description of the maximized debugging screen
139
Description of the minimized debugging screen
141
How to use value or parameter windows
144
How to use the LEDs and buttons
146
137
Debugging
Introducing the debugging screens
General
Debugging screens are used to debug an application. They are used to display the
status of inputs and outputs on a channel, the contents of the registers, the possible
faults and to control language objects (setting to 0 or 1, forcing or unforcing a bit,
etc.) They can therefore only be accessed in on-line mode.
They also give access to adjustment (See Adjustment of the data modules
TSX CTY2A, TSX CTY4A and TSX CTY2C, p. 125) and configuration
(See Configuration of the TSX CTY2A, TSX CTY4A and TSX CTY 2C modules,
p. 103) screens.
There are two debugging screens:
l a minimized screen, which is the application operation monitoring tool for the
counting or measurement channel. It displays the main data: contents of
registers, status of inputs and outputs, fault indicators.
l an maximized screen, which is the debugging tool. It is used to view and control
language objects.
Switching from one to the other is immediate, and there is no need to stop the
application or counting in progress.
Opening a module in on-line mode displays the minimized debugging screen by
default.
Note: the general principles for debugging an application are described in the
Common task functions section.
138
TLX DS 57 PL7 40E 09/2000
Debugging
Description of the maximized debugging screen
At a Glance
The maximized debugging screen is used to provisionally modify the operation of an
application at counting module level, with a view to detecting programming faults.
It displays the status of inputs, outputs and main channel bits, contents of registers,
and possible faults. It is used to control or force (lock) certain bits.
You return to the minimized screen simply by clicking on an icon.
The minimized screen does not include a default module zone. However, you can
display one with the View menu. This module zone also gives access to the
adjustment (See Description of the configuration screen for a counting module,
p. 104) and configuration (See Description of the adjustment screen of a counting
module, p. 126) screens.
Illustration
The diagram below shows an example of a maximized debugging screen.
1
2
TSX CTY 2C [ RACK0
Symbol:
Channel:
Channel 0
POSITION 5 ]
Function:
Up/Down counting and measurement
Counter
Measurement:
Speed:
0
EVT overrun
0 pulses/s
Counting direction
IA
IB
IZ
Encoder address:
0
DIAG...
CH0
Comparison in relation to thresholds
Threshold 0: Threshold 1: Rollover:
50
80
0
S0
EVT
Current value position/
Capture position/
S1
Rollover
-
+
Faults
Invalid measurement
3
Enabling/Preset/Capture
Preset
Offset:
100
0
Fault Ack
-
EVT processing
+
Reset
Capture:
0
ENA PRES CAPT
Outputs/Switches
B0
B1
Q0
Q1
Q2
Q3
State
EVT
Done/Active
Input
Set to 1
Set to 0
Auto Enable
Enable
Direct
EVT processing
Reset
TLX DS 57 PL7 40E 09/2000
Auto mode
Manual control
Reactivating outputs
139
Debugging
Description
The table below shows the different elements of the maximized debugging screen
and their functions.
Address Element
Function
1
Title bar
Shows the selected module’s reference and its geographical
address (rack number and physical position in the rack).
2
Channel field
Is used to select the counting channel to be debugged in the
Channel or Counter window. The symbol (name) of the channel
and its function are shown.
In the same zone are:
l
l
l
l
the button to access
the unforce button
the minimized screen,
for forced bits,
a copy of the CHx channel indication LED,
and the button to access
diagnostics window, the icon
masked faults (CTY2C).
3
DIAG...
the channel
signaling the presence of
View and
This field displays the status of inputs, outputs, intermediate bits
command field and the values of the various counting in progress registers.
It is also used to control and force various objects (bits).
The field is divided into function groups corresponding to the
main functions (See Description of the standard functions of the
TSX CTY2A, TSX CTY4A and TSX CTY2C counting modules,
p. 33).
Note: it is possible to display the concise definition of an object that is not selected
by keeping the mouse cursor over it. The definition also provides the name of the
associated language object.
Note: the LEDs and commands that are not available appear grayed out.
140
TLX DS 57 PL7 40E 09/2000
Debugging
Description of the minimized debugging screen
At a Glance
The minimized debugging screen is used to monitor the operation of an application
at counting module level. It displays the status of inputs, outputs and main bits of a
channel, the contents of registers, possible faults.
To switch to the maximized screen, just click on an icon. It also gives access to the
adjustment and configuration screens.
Illustration
The figure below shows an example of a minimized debugging screen.
1
2
TSX CTY 4A [ RACK 0 POSITION 4 ]
Debugging
Name: COUNT. MOD. 4 CHANNELS 40KHZ
3
4
RUN
Symbol:
Counter:
Counter 0
IA
Current measurement:
IB
Invalid measurement
IPres
Preset value:
TLX DS 57 PL7 40E 09/2000
Capture value:
DIAG...
DIAG...
0
Q0
Q1
100
IEna
ICapt
IO
Function:
Up/Down counting
Counting direction:
5
ERR
0
Preset
done
Active
enabling
Capture
done
Choice of functions
for zoom:
Measurement
Enabling
Preset
Capture
Comparison
Switches
Outputs
141
Debugging
Description
The table below shows the different minimized debugging screen elements and their
functions.
Address Element
Function
1
Title bar
Shows the selected module’s reference and its geographical
address (rack number and physical position in the rack).
2
Command
zone
Shows the mode in progress (Debugging) and is used to access
other modes:
l Adjusting (See Description of the adjustment screen of a
counting module, p. 126)
l Configuration (See Description of the adjustment screen of
a counting module, p. 126).
3
Module zone
Shows the module’s abbreviated name and its version number
(this is the only screen where this information is displayed).
In the same zone are:
l a copy of the module status LEDs: RUN (in operation),
ERR (error), I/O (external fault),
l
142
DIAG... to the module diagnostics
and the access button
(See Displaying fault diagnostics, p. 150) window.
TLX DS 57 PL7 40E 09/2000
Debugging
Address Element
Function
4
Is used to select the counting channel to be debugged in the
Channel or Counter window. The following information is
shown at this level:
l Symbol: channel name set by the user
(using the variables editor).
l Function: counting function configured. This selection is
defined in the configuration screen.
In the same zone are:
Channel field
l
the access button
for the extended screen (See
Description of the maximized debugging screen, p. 139)
(zoom), where the debugging commands are located,
Note: with CTY2A/4A modules only, the functions to be
displayed in the extended screen can be selected in a
window in the parameter field, lower down. For the CTY2C
module, all functions will be displayed systematically.
l
l
l
the unforce button
for inputs/outputs.
a copy of the CHx channel fault LED,
and the button to access
diagnostics window, the icon
masked faults (CTY2C).
5
Parameters in
progress zone
DIAG... the channel
signaling the presence of
This zone displays the status of the inputs and outputs and the
various counting parameters in progress. If the contents of the
counting register cannot be used following an input fault, the
Invalid measurement indicator or LED appear in red.
Note: the concise definition of an object that is not selected, but which can be
activated, is displayed by keeping the mouse cursor over it. The definition also
gives the name of the associated language object.
TLX DS 57 PL7 40E 09/2000
143
Debugging
How to use value or parameter windows
At a Glance
The maximized debugging screen commands zone is divided into headings or
function groups. The corresponding functions are described in detail in the
Description of the standard functions of the TSX CTY2A, TSX CTY4A and
TSX CTY2C counting modules, p. 33 section, and their essential characteristics
are shown in the module configuration (See Configuration of the TSX CTY2A,
TSX CTY4A and TSX CTY 2C modules, p. 103) procedures.
This document module shows the general principles for using measurement or
parameter windows.
A measurement is the result of counting, acquisition or calculation.
A parameter is a piece of input data by the user or application.
Principle for
using
measurement
windows
Windows as shown in the example below are used to display the current contents of
a register. The values displayed cannot be modified directly by selecting these
windows.
Counter
Measurement:
Speed:
Comparison in relation to thresholds
0
0
EVT overrun
Pulses/s
Threshold 0:
50
Threshold 1:
80
Rollover:
0
The following table summarizes the behavior of values that cannot be modified:
Value
Behavior
Measurement
Cannot be modified. Can be preset by a preset or reset command.
The + or - sign on the right of the window indicates the actual direction
measurement change.
Speed (CTY2C)
Cannot be modified or preset.
Address of
multiplexed encoder
(CTY2C)
Cannot be modified. Can be preset using the manual Q2 and Q3
outputs if these control the multiplexing.
To modify a parameter value, such as threshold, preset, or rollover values, use the
following procedure.
144
TLX DS 57 PL7 40E 09/2000
Debugging
How to change a
parameter value
TLX DS 57 PL7 40E 09/2000
The table below describes the procedure for changing a parameter.
Step
Action
1
In the Rollover zone select the Adjustment mode
2
In the adjustment screen modify the required parameter.
3
Enable (Edit - Enable menu), otherwise say Yes in the Enable modifications
dialog box, which appears at the next step.
4
In the Rollover zone select the Debugging mode again.
Result: the new parameter value is displayed.
145
Debugging
How to use the LEDs and buttons
At a Glance
The maximized debugging screen commands zone is divided into headings or
function groups. The corresponding functions are described in detail in the
Description of the standard functions of the TSX CTY2A, TSX CTY4A and
TSX CTY2C counting modules, p. 33 section, and their essential characteristics are
shown in the module configuration (See Configuration of the TSX CTY2A,
TSX CTY4A and TSX CTY 2C modules, p. 103) procedures.
This section shows the general principles for using LEDs and buttons.
The LEDs are used to display the status of a bit.
The buttons are used to set a bit, triggering an action or not (depending on the case).
Note: it is possible to display the concise definition of an object that is not selected
by keeping the mouse cursor over it. The definition also provides the name of the
associated language object.
Meaning of the
LEDs
When the bit is at 0, the LED is off (white) (see the example below).
When the bit is at 1, the LED is on (black, blue or red). Some LEDs display a little
black dot in status 1.
There are also position LEDs
which use a bold dash to display the
measurement or capture position in relation to a threshold or a set point.
These latter are represented by a thin central dash.
146
TLX DS 57 PL7 40E 09/2000
Debugging
Button use
principle
In the example below the Direct enabling and Direct capture buttons are set to 1.
Counter enable/Preset/Capture
Preset:
Offset:
100
Capture:
260
0
ENA
PRES
CAPT
EVT
Done/Active
Input
Direct
Enabling
EVT processing
Reset
Clicking on this button
sets the associated bit to 1. The button and possibly
the LED above light up (switch to a color).
Clicking on this button
sets the associated bit to 0. The button and possibly
the LED above go out (switch to white).
These actions are provisional in the sense that the application or counting can
change the bit status.
Note: the LED status can be different from the button status. Some LEDs are
reserved for storing the action carried out by the physical input (capture, preset or
reset). These LEDs can be recognized by the presence of a reset button (action
carried out) in the same column. In this case you can switch off the LED, if
necessary, by pressing this button.
Forcing a bit
To lock the status of a bit (i.e. to make it permanent), use the forcing commands,
which can be accessed by right-clicking on the mouse. The button goes on or off in
Force to 0
Force to 1
Unforce
F4
F5
F6
the same way as before but with the letter F superimposed
the same menu to delete bit forcing.
F
You can also unforce all forced bits by clicking on the padlock
Channel field.
TLX DS 57 PL7 40E 09/2000
. Conversely, use
icon in the
147
Debugging
148
TLX DS 57 PL7 40E 09/2000
Diagnostics of the data modules
TSX CTY2A, TSX CTY4A
and TSX CTY2C
7
At a Glance
Subject of this
chapter
This chapter describes the different diagnostics options of the TSX CTY2A,
TSX CTY4A and TSX CTY2C data modules.
What’s in this
Chapter?
This Chapter contains the following Maps:
TLX DS 57 PL7 40E 09/2000
Topic
Page
Displaying fault diagnostics
150
Lists of fault diagnostics
152
149
Diagnostics
Displaying fault diagnostics
At a Glance
Diagnostic screens at module or channel level can only be accessed in on-line
mode.
When a unmasked fault appears, this is indicated:
l in the rack configuration screen by the appearance of a red square in the position
of the counting module that is faulty,
l in the debug screen by the DIAG buttons at module or channel level which turn
red. Clicking on these buttons then gives access to the fault diagnostics.
The fault is also indicated:
l on the module via the central display,
l by the dedicated language objects: %Ixy.i.ERR, %Ixy.i.MOD.ERR,
%MWxy.i.MOD.2, etc., and the status words (See The counting task’s language
objects, p. 165).
Note: even if the fault is masked (TSX CTY 2C), it is indicated by the flashing of
the CHx light and by the DIAG button at channel level.
150
TLX DS 57 PL7 40E 09/2000
Diagnostics
Illustration
The diagram below shows how the faults are indicated.
Configuration
XMWI
XTI..
TSX 5730 V3.0...
0
0
P
S
Y
T
S
X
2
6
0
0
5
7
3
0
1
1
2
D D
E
S
Y Y
3
1
2
6
D T
2 TSX 3CTY
4
3
5
6
D
S
C
C
T
T
Y
Y
Y
0
8
4
2
R
A
C
4A
5 [ RACK 0 POSITION 4 ]
7
8
9
10
Debugging
Designation: MOD.COMPT.4 CHANNELS 40KHZ Version : 1.0
RUN
ERR
IO
DIAG…
Symbol:
Counter:
Counter 0
CH0
DIAG…
Function:
Up/Down counting
Module Diagnostics
Internal faults
External faults
Other faults
Faulty channel(s)
OK
Channel Diagnostics
Internal faults
External faults
Auxiliary I/O
Supply
Counting inputs:
Encoder or PD supply
Other faults
Application fault
Invalid software configuration
OK
TLX DS 57 PL7 40E 09/2000
151
Diagnostics
Lists of fault diagnostics
At a Glance
The messages displayed on the diagnostics screens are used to assist in application
debugging. These messages must be concise and are sometimes ambiguous
(as different faults may have the same consequences).
These diagnostics are on two levels: module and channel, the latter being the most
explicit. The lists below show the message headings with suggestions for finding out
what is wrong.
List of the
module fault
messages
The table below provides a list of the module fault messages.
Fault indicated
Possible interpretation and/or action
Module failure
The module has a fault.
Check the module mounting. Change the module.
Faulty channel(s)
One or more channels have a fault.
Refer to channel diagnostics.
Self-test
The module is running a self-test. Wait until the self-test is complete.
Different hardware and There is a lack of compatibility between the module configured and
software configurations the module in the rack.
Make the configuration and the software configuration compatible.
Module is missing or off Install the module. Fasten the mounting screws.
152
TLX DS 57 PL7 40E 09/2000
Diagnostics
List of channel
fault messages
TLX DS 57 PL7 40E 09/2000
The table below gives the list of fault messages at channel level.
Fault indicated.
Other consequences.
Possible interpretation and/or action.
External fault or counting input fault:
l encoder or proximity sensor
supply fault,
l line break or short circuit of at
least one encoder differential
signal (1A, 1B or 1Z),
l SSI series frame fault,
l specific fault on absolute
encoder.
outputs are set to 0 in automatic
mode.
Invalid measurement message.
Check the sensor connections.
Check the sensor power supply.
Check the sensor operation.
Delete the fault and acknowledge if the fault storing is
configured (CTY2C).
Counting pulses or incremental encoder: preset or reset
to acknowledge the Invalid measurement message.
Counting application fault:
l measurement overrun
l overspeed
Outputs are set to 0 in automatic
mode.
Invalid measurement message.
Diagnose the fault more precisely (external causes).
Check the application again, if necessary.
Delete the fault and acknowledge if the fault storing is
configured (CTY2C).
Counting pulses or incremental encoder: preset or reset
to acknowledge the Invalid measurement message.
Auxiliary input/output fault:
l power supply
l short circuit of at least one
output
Outputs are set to 0 in automatic
mode.
Check the output connections.
Check the input/output power supply (24V).
Diagnose the fault more precisely (external causes).
Delete the fault and acknowledge if the fault storing is
configured (CTY2C).
Internal fault or channel self-test:
l faulty module,
l module missing or off,
l module running self-test.
Module fault has gone down to channel level.
Refer to module level diagnostics.
Different hardware and software
configurations
Module fault has gone down to channel level.
Refer to module level diagnostics.
Invalid software configuration:
l incorrect constant
l bit combination not associated
with any configuration
Check and modify the configuration constants.
Communication fault
Check the connections between the racks.
Application fault: refusal to
configure or adjust
Diagnose the fault more precisely.
153
Diagnostics
154
TLX DS 57 PL7 40E 09/2000
Software implementation
8
At a glance
Subject of this
chapter
This chapter describes the counting modules’ operating modes as well as the
operation of the event processing, which supports completion of the counting
applications with optimized response times.
What’s in this
Chapter?
This Chapter contains the following Sections:
TLX DS 57 PL7 40E 09/2000
Section
Topic
Page
8.1
Counting module operating modes
157
8.2
Event processing installation
159
155
Software implementation
156
TLX DS 57 PL7 40E 09/2000
Software implementation
8.1
Counting module operating modes
How counting modules behave in the different operating modes
General
The counting modules operate in specific ways according to the different PLC
operating modes. Knowing about these specific ways is important for programming
and debugging the application.
General principles for dealing with operating modes are described:
l in the set up manual for TSX Premium - TSX 57 PLCs, (TSX DM 57 eng V4),
l the reference manual, PL7 Micro/Junior/Pro (TLX DR PL7 eng V4).
Summary table
The table below shows the special features of counting modules in different
operating modes.
Cold start
Warm restart
STOP
Reconfiguring in
online mode
Invalid measurement bit
1
1
0
1
Adjustment parameters: set
points, thresholds, preset,
measurement period (speed),
output period (frequency)
%MDxy.i.r
initial values
unchanged
unchanged
initial values
Commands (direct software
actions, various actions, event
unmasking)
%Qxy.i.r, %QWxy.i.r
0
unchanged
unchanged, new
commands not
sent
unchanged
Information and module data ->
processor
%IDxy.i.r, %IWxy.i.r, %Ixy.i.r
unchanged if no
power outage
unchanged if no
power outage
sent
unchanged
Forced objects
unforced
unchanged
unchanged
unchanged
Switches (as a result of Invalid
measurement)
0
0
unchanged
0
Outputs
0
0
fallback mode
0
The paragraphs below show the essential properties of these operating modes,
seen from a module.
TLX DS 57 PL7 40E 09/2000
157
Software implementation
Cold start
A cold start occurs when the application first starts running, when some power is
restored, when initialization takes place from a PL7, or when the Reset button on the
processor is pressed.
Parameters are initialized at their set initial values using the configuration editor.
The current counter measurement cannot be used (Invalid measurement bit set to 1).
If the module has not had a power outage, the current value of the counter is
unchanged although the Invalid measurement bit is set.
The user must set the procedure to be carried out from a cold start
(See How to deal with an invalid measurement, p. 99).
Warm restart
The program starts again from the program element where the power outage took
place, but the outputs remain at 0 until refreshed by the task.
The values of counting application-specific function objects are not changed by a
warm restart, except for those involved with the Invalid measurement bit.
If the module has not had a power outage, the current value of the counter is
unchanged although the Invalid measurement bit is set.
The user must define the processing procedure to be carried out on a warm restart.
Power outage
and restart
When there is a power outage, the application context and time of the outage are
stored.
When the power is restored the saved context is compared with that in progress:
l if the application context has changed (i.e. loss of system context or new
application), the PLC initializes the application: see cold start,
l if the application context is the same, the PLC carries out a warm restart.
STOP mode
In STOP mode the user program is not run. However the application-specific
counting function does operate: the counter advances according to the status of the
physical inputs (IA, IB, IPres or IReset, IEna, ICapt).
Reconfiguring
in online mode
This mainly involves debugging an application.
Changes must be confirmed.
158
TLX DS 57 PL7 40E 09/2000
Software implementation
8.2
Event processing installation
At a Glance
Subject of this
section
This section describes how to install event processing associated with a counting
module.
What’s in this
Section?
This Section contains the following Maps:
TLX DS 57 PL7 40E 09/2000
Topic
Page
Introduction to event processing
160
How to program event processing
162
159
Software implementation
Introduction to event processing
At a Glance
Event processing is used to minimize the reaction time when installing counting
modules by:
l programming reflex actions,
l extending (physical) reflex output time performances Q0 and Q1 to other outputs
on the PLC output modules.
One event (task) process can be associated with each counting channel.
The appearance of an event in the application-specific counting function re-routes
the application program to the event task associated with the channel.
The priority of the task is linked to its number. There are two priority levels
determined by the process number: EVT0 has priority over all other EVTi’s
(i: from 1 to 31 or 63, depending on processor type). You must therefore assign
EVT0 to the most important channel of the application, which will not necessarily be
a counting channel.
The Multi-task application structure section in the TSX Premium - TSX 57 PLCs
(TSX DM 57 eng V4) installation manual provides details on how to integrate event
tasks into the application.
Event
processing
principle
Event processing is enabled when:
l bit %S38 which enables PL7 event processing is set to 1,
l the UNMASKEVT is carried out in MAST and FAST tasks,
l the counting channel events involved are unmasked.
The objects indicating:
l the source of the event (event status word %IWxy.i.3),
l and the captured value,
are updated implicitly before the event process is carried out.
The other counting objects are not updated.
Event processing must first of all identify the source of the event by testing the event
status word bits set to 1.
160
TLX DS 57 PL7 40E 09/2000
Software implementation
Illustration
The figure below illustrates the event processing principle
Unmask EVT
Up
counting
on
CTY 2A/4A
Enable
Preset
Capture
or
CTY 2C
EVT testing and processing
UNMASKEVT
%S38
Reflex action
Reflex action
Reflex action
Reflex action
Crossing
threshold etc.
TLX DS 57 PL7 40E 09/2000
161
Software implementation
How to program event processing
Procedure
The table below summarizes the essential steps for programming event processing.
Step
162
Action
1
Configuration phase
In offline mode, in the configuration editor, select Event processing and the
event number for the counting channel.
2
Unmasking phase
In particular, the MAST or FAST calling task must:
l Enable processing of events at system level: set bit %S38 to 1 (default
value).
l Unmask events in MAST and FAST tasks with the UNMASKEVT instruction
(active by default).
l Unmask events concerned at channel level by setting implicit event
unmasking language objects (See Unmask event commands, word
%QWxy.i.1, p. 173). By default, the events are masked.
l Check that the stack of events at system level is not saturated (bit %S39
must be at 0).
3
Event program creation phase
On the Events tab, select Edit → Create and create the event program. In
particular, this program must:
l Determine the source of the event(s) from the event status word (See Status
of events and switches, word %IWx.i.3, p. 171) in implicit exchange.
l Carry out the reflex tasks associated with the event. This process must be as
short as possible.
l Explicitly update the reflex outputs concerned.
Note: the event status word is automatically reset to zero.
TLX DS 57 PL7 40E 09/2000
Software implementation
Illustration of
event unmasking
This figure shows event unmasking in the MAST task.
LD: MAST - MAIN
(*Unmasking events*)
OPERATE
UNMASKEVT()
(*If unmasking from cold THEN authorize events*)
%S38
S
%S1
(*If starting from cold THEN unmask threshold 0 crossing event: %QW1.1.0:X5*)
%QW1.0.1:X5
%S1
(*If starting from cold THEN unmask crossing threshold 1 event: QW1.1.0:X6*)
%QW1.0.1:X6
%S1
F2
Illustration of the
contents of an
event task
F3
P
F4
N
F5
X
F6
F7
F8
F9
F10
F11
S
F12
R
S.F1
S.F2
OPER
S.F3
COHP
H
S.F4
COHP
V
S.F5
S.F6
FB
S.F7
F (...)
S.F8
This figure shows the possible contents of an event task (testing event and action bit).
LD: EVT - EVT0
(*If threshold 0 crossing event THEN set physical output %Q2.0 to 1*)
%Q2.0
S
%IW1.0.3:X5
(*If crossing threshold 1 event THEN set physical output %Q2.0 to 0*)
%Q2.0
R
%IW1.0.3:X6
F2
TLX DS 57 PL7 40E 09/2000
F3
P
F4
N
F5
X
F6
F7
F8
F9
F10
F11
S
F12
R
S.F1
S.F2
OPER
S.F3
COHP
H
S.F4
COHP
V
S.F5
S.F6
FB
S.F7
F (...)
S.F8
163
Software implementation
164
TLX DS 57 PL7 40E 09/2000
The counting task’s language
objects
9
At a glance
Subject of this
chapter
This chapter describes the language objects associated to the counting tasks as well
as the different ways of using them.
What’s in this
Chapter?
This Chapter contains the following Maps:
TLX DS 57 PL7 40E 09/2000
Topic
Page
Introducing language objects for application-specific counting
166
Implicit exchange language objects associated with the application-specific
counting function
167
Details of implicit exchange objects
169
Explicit exchange language objects associated with the application-specific
counting function
174
Breakdown of objects for user defined exchange
177
Explicit object exchange and report management
183
165
Language objects
Introducing language objects for application-specific counting
General
166
Counting modules configured in a given position automatically generate a group of
language objects enabling them to be programmed, and measurement results and
diagnostics to be read.
There are two main types of language object:
l implicit exchange objects which are automatically exchanged on each cycle
revolution of the task associated with the module,
l explicit exchange objects, which are exchanged at the request of the application
using explicit exchange instructions.
The former (implicit exchanges) involve input/output module maps: measurement
results, software information and commands necessary for the operation.
The latter (explicit exchanges) are used to set module parameters and bring in
additional arguments (parameters, commands and information) for advanced
programming. They are not necessary for normal programming.
TLX DS 57 PL7 40E 09/2000
Language objects
Implicit exchange language objects associated with the application-specific
counting function
At a Glance
These objects are used to access inputs and software information for the
application-specific counting function.
The addressing system for words and bits is given in the Common
application-specific functions section.
Reminders
Module input maps (%I and %IW) are updated in the processor at the beginning of
the task cycle in RUN or STOP mode.
Output commands (%Q and %QW) are updated in the module at the end of the task
cycle, only when in RUN mode.
xy represents the position of the module, i represents the channel number (counted
from 0) in the module.
Illustration
The chart below illustrates the operation cycle relating to a PLC task (cyclic running).
Internal processing
Acquisition of inputs
RUN
STOP
Program processing
Updating outputs
TLX DS 57 PL7 40E 09/2000
167
Language objects
List of implicit
exchange
objects
168
The table below summarizes the implicit exchange objects in the application-specific
counting function.
Object
Content
%Ixy.i.ERR
Counting channel error bit. When set to 1 it shows that channel i of
the module in position xy has a fault. The causes of the fault are
listed in the explicit exchange words %MWxy.i.2
(See Channel standard fault, %MWxy.i.2, p. 178) and %MWxy.i.3
(See Specific channel faults, %MWxy.i.3, p. 178).
%Ixy.MOD.ERR
Module error bit. When set to 1 it shows that the module in position
xy has a fault. The causes of the fault are listed in the explicit
exchange module status word %MWxy.MOD.2
(See Module error flags: %MWxy.MOD.2, p. 177).
%IDxy.i.0
Current counter value (24 active bits).
%IDxy.i.4
Captured counter value (24 active bits).
%IDxy.i.6
Reserved for special functions (CTY2C), this is the time elapsed
(event task) between capture and last pulse (special function
number 1).
%IDxy.i.8
Speed (number of pulses per second, 24 active bits, CTY2C).
%IDxy.i.10
Multiplexed address of the absolute encoder with parallel outputs
(CTY2C).
%IDxy.i.11
Reserved for special functions (CTY2C), this is the time elapsed
(Mast or Fast task) between capture made and last pulse detected
(special function number 1).
%Ixy.i.0 to %Ixy.i.23
Software information bits. (See Software information: %Ixy.i.r bits, p.
169)
%IWxy.i.2
Software information word showing the status of the physical
counting inputs (See Status of physical inputs/outputs, word
%IWxy.i.2, p. 170).
%IWxy.i.3
Information word showing the source of the events and the state of
the software output switches (See Status of events and switches,
word %IWx.i.3, p. 171).
%Qxy.i.0 to
%Qxy.i.23
Software commands (See Software commands, %Qxy.i.r bits, p.
172).
%QWxy.i.0
Stored information reset commands, software direction commands
(See Reset and output commands,
word %QWxy.i.0, p. 173).
%QWxy.i.1
Unmask event (See Unmask event commands,
word %QWxy.i.1, p. 173) commands.
TLX DS 57 PL7 40E 09/2000
Language objects
Details of implicit exchange objects
At a Glance
This section describes the group of implicit exchange bits.
The columns in the tables give the following information:
l its address,
l its symbol generated by the PL7 during Pre-symbolization,
l the description of its function.
Software
information:
%Ixy.i.r bits
The table below shows the meanings of the %Ixy.i.r status bits.
TLX DS 57 PL7 40E 09/2000
Address
Standard symbol
Meaning:
%Ixy.i.0
ENAB_ACTIV
Counter enable active
%Ixy.i.1
PRES_DONE
Preset done (hardware, except special function
CTY2C)
%Ixy.i.2
CAPT_DONE
Capture done (hardware, except special function
CTY2C)
%Ixy.i.4
OVERSPEED_WRN Overspeed fault (CTY2C)
%Ixy.i.5
CUR_MEAS_THR0
Current value more than or equal to threshold 0
(<or less than 0 when down counting, CTY2A/4A)
%Ixy.i.6
CUR_MEAS_THR1
Current value more than or equal to threshold 1
%Ixy.i.7
CUR_MEAS_HISP
Current value more than or equal to the high setpoint
(CTY2A/4A)
%Ixy.i.8
CUR_MEAS_LOSP
Current value more than or equal to the low setpoint
(CTY2A/4A)
%Ixy.i.9
COUNT_DIR
Counting direction
0: direction - (down counting), 1: direction + (up
counting)
%Ixy.i.10
CAPT_THR0
Captured value more than or equal to threshold 0
%Ixy.i.11
CAPT_THR1
%Ixy.i.12
CAPT_HISP
INC_MOD_DONE
%Ixy.i.13
CAPT_LOSP
DEC_MOD_DONE
Captured value more than or equal to threshold 1
l
l
l
l
Captured value more than or equal to the high
setpoint (CTY2A/4A)
Modulo crossing in + direction (CTY2C)
Captured value more than or equal to the low
setpoint (CTY2A/4A)
Rollover moving in - direction (CTY2C)
%Ixy.i.16
Reserved for special functions (CTY2C):
%Ixy.i.16: Correct speed,
%Ixy.i.17
Reserved for special functions (CTY2C):
%Ixy.i.17: moving part stationary.
169
Language objects
Status of
physical inputs/
outputs, word
%IWxy.i.2
The table below shows the meanings of %IWxy.i.2 status word bits.
Address
Standard symbol
Meaning
%IWxy.i.2:X0
ST_IA
Status of physical counting input IA
%IWxy.i.2:X1
ST_IB
Status of physical counting input IB
%IWxy.i.2:X2
ST_IVAL
Status of physical enable input IEna
%IWxy.i.2:X3
ST_PRES
State of the IPres or IReset physical preset input
%IWxy.i.2:X4
ST_CAPT
State of physical capture input ICapt
%IWxy.i.2:X6
ST_IZ
Status of physical counting input IZ
%IWxy.i.2:X7
INVALID_MEAS
%IWxy.i.2:X8
ST1_SSI_FRAME
Invalid measurement
l
l
l
170
l
l
Rank 1 status bit from the SSI frame,
or odd parity bit (SSI absolute encoder with odd
parity, not checked by the module),
or least significant part of the address (absolute
encoder with multiplexed parallel outputs and
adaptation base unit).
%IWxy.i.2:X9
ST2_SSI_FRAME
%IWxy.i.2:X10
ST3_SSI_FRAME
%IWxy.i.2:X11
ST4_SSI_FRAME
Rank 4 status bit 4 from the SSI frame
%IWxy.i.2:X12
ST_Q2
Q2 output status (CTY2C)
%IWxy.i.2:X13
ST_Q3
Q3 output status (CTY2C)
%IWxy.i.2:X14
ST_Q0
Q0 output status
%IWxy.i.2:X15
ST_Q1
Q1 output status
l
l
Rank 2 status bit from the SSI frame,
or most significant part of the address (absolute
encoder with multiplexed parallel outputs and
adaptation base unit).
Rank 3 status bit from the SSI frame,
or specific fault bit on absolute encoder with
parallel outputs.
TLX DS 57 PL7 40E 09/2000
Language objects
Status of events
and switches,
word %IWx.i.3
TLX DS 57 PL7 40E 09/2000
The table below shows the meanings of %IWxy.i.3 status word bits.
Address
Standard symbol
Meaning
%IWxy.i.3:X0
ENAB_EVT
Enabling event
%IWxy.i.3:X1
PRES_EVT
Event preset or reset
%IWxy.i.3:X2
CAPT_EVT
Capture event
%IWxy.i.3:X3
CAPT_EDGE
Capture edge direction (TSX CTY2C)
0: rising edge, 1: falling edge.
%IWxy.i.3:X5
THR0_EVT
Threshold 0 crossing event (or zero value when
down counting with TSX CTY2A/4A)
%IWxy.i.3:X6
THR1_EVT
Threshold 1 crossing event
%IWxy.i.3:X7
HISP_EVT
%IWxy.i.3:X8
LOSP_EVT
%IWxy.i.3:X9
ST_COUNT_DIR
Direction when crossing threshold or setpoint
(CTY2A/4A)
0: direction - (down counting), 1: direction + (up
counting)
%IWxy.i.3:X10
ST_LATCH0
State of switch 0
%IWxy.i.3:X11
ST_LATCH1
State of switch 1
%IWxy.i.3:X12
INC_MOD_EVT
Rollover moving event in + direction (CTY2C)
%IWxy.i.3:X13
DEC_MOD_EVT
Rollover moving event in - direction (CTY2C)
%IWxy.i.3:X15
OVERRUN_EVT
Overrun events (channel level).
l
l
l
l
Crossing high setpoint event (CTY2A/4A)
Reserved for special functions (CTY2C)
Crossing low setpoint event (CTY2A/4A)
Reserved for special functions (CTY2C)
171
Language objects
Software
commands,
%Qxy.i.r bits
The table below shows the meanings of the %Qxy.i.r command bits.
Address
Standard symbol
Meaning
%Qxy.i.0
DIRENAB
Direct enabling by the software
%Qxy.i.1
DIRPRES
Direct preset by the software
%Qxy.i.2
DIRCAPT
Direct capture by the software
%Qxy.i.3
FLT_ACK
Fault acknowledgement (CTY2C)
%Qxy.i.5
ENAB_IENAB
Enabling the physical input IEna
%Qxy.i.6
ENAB_IPRES
Enabling the IPres or IReset physical output
%Qxy.i.7
ENAB_ICAPT
Enabling the physical input ICapt
%Qxy.i.9
ENAB_Q3_AUTO
Enabling the Q3 output in automatic mode
(CTY2C)
%Qxy.i.10
SET_LATCH0
Switch 0 set to 1
%Qxy.i.11
SET_LATCH1
Switch 1 set to 1
%Qxy.i.12
RESET_LATCH0
Switch 0 set to 0
%Qxy.i.13
RESET_LATCH1
Switch 1 set to 0
%Qxy.i.14
ENAB_Q0_AUTO
Enabling the Q0 output in automatic mode
%Qxy.i.15
ENAB_Q1_AUTO
Enabling the Q1 output in automatic mode
%Qxy.i.16 to
%Qxy.i.19
172
Reserved for special functions (CTY2C)
%Qxy.i.20
MANU_CMD_Q2
Q2 output manual command (CTY2C)
%Qxy.i.21
MANU_CMD_Q3
Q3 output manual command (CTY2C)
TLX DS 57 PL7 40E 09/2000
Language objects
Reset and output
commands, word
%QWxy.i.0
Unmask event
commands, word
%QWxy.i.1
TLX DS 57 PL7 40E 09/2000
The table below shows the meanings of the %QWxy.i.0 command word bits.
Address
Standard symbol
Meaning
%QWxy.i.0:X1
PRES_RESET
Reset of hardware preset done
%QWxy.i.0:X2
CAPT_RESET
Hardware reset capture done
%QWxy.i.0:X4
MOD_RESET
Rollover moving reset done (CTY2C)
%QWxy.i.0:X9
COUNT_DIR_CHG
Counting direction
0: direction - (down counting), 1: direction + (up
counting)
%QWxy.i.0:X10
REACTIV_Q
Reactivation of outputs Q0, Q1, and outputs Q2,
Q3 (CTY2C)
%QWxy.i.0:X11
AUTO_MOD_Q3
Manual/automatic output mode Q3 (frequency,
CTY2C)
0: manual, 1: automatic (programmable frequency)
%QWxy.i.0:X12
AUTO_MOD_Q0
Manual/automatic output mode Q0
0: manual, 1: automatic
%QWxy.i.0:X13
AUTO_MOD_Q1
Manual/automatic output mode Q1
0: manual, 1: automatic
%QWxy.i.0:X14
MANU_CMD_Q0
Output status manual command Q0
%QWxy.i.0:X15
MANU_CMD_Q1
Output status manual command Q1
The table below shows the meanings of word bits %QWx.i.1.
Address
Standard symbol
Meaning
%QWxy.i.1:X0
ENAB_UNMSK
Enable event unmasking
%QWxy.i.1:X1
PRES_UNMSK
Unmask preset or reset event
%QWxy.i.1:X2
CAPT_UNMSK
Unmask capture event
%QWxy.i.1:X5
THR0_UNMSK
Unmask threshold 0 event
%QWxy.i.1:X6
THR1_UNMSK
Unmask threshold 0 event
%QWxy.i.1:X7
HISP_UNMSK
Unmask high setpoint event (CTY2A/4A)
%QWxy.i.1:X8
LOSP_UNMSK
Unmask low setpoint event (CTY2A/4A)
%QWxy.i.1:X12
INC_MOD_UNMSK
Unmasking rollover moving event in + direction
(CTY2C)
%QWxy.i.1:X13
DEC_MOD_UNMSK Unmask rollover moving event in - direction
(CTY2C)
173
Language objects
Explicit exchange language objects associated with the application-specific
counting function
At a Glance
Explicit exchanges are exchanges carried out on request from the program user
using the following instructions:
l READ_STS (read status words),
l WRITE_CMD (write command words),
l WRITE_PARAM (write adjustment parameters),
l READ_PARAM (read adjustment parameters),
l SAVE_PARAM (save adjustment parameters),
l RESTORE_PARAM (restore adjustment parameters).
These exchanges apply to all %MW objects that are of the same type (status,
commands or parameters) on the same channel.
Note: These objects bring information (e.g.: Type of channel fault…), commands
(e.g.: switch commands) and additional operating modes (saving and restoring
adjustment parameters while the application is in progress) to carry out more
precise operation programming of the function.
174
TLX DS 57 PL7 40E 09/2000
Language objects
General principle
for the use of
explicit
instructions
The diagram below shows the different types of explicit exchange that are possible
between the PLC processor and the module (or the built-in interface).
Task or interface module
built-in task
PLC processor
Objects %MWxy.i.r
or
%MWxy.MOD.r (1)
Status parameters
Command parameters
READ_STS
WRITE_CMD
Status parameters
Command parameters
WRITE_PARAM
Adjustment parameters:
actual
READ_PARAM
SAVE_PARAM
Adjustment parameters:
current
Initial adjustment
parameters
RESTORE_PARAM
(1) Only with READ_STS and WRITE_CMD instructions.
Managing
exchanges
During an explicit exchange, it may be interesting to monitor the progress that this
makes, in order to, for example, only take into account the data read when the
exchange has actually been carried out.
For this, two kinds of information are available:
l detecting an exchange in progress (See Explicit exchange operation indicators:
%MWxy.i.0, p. 186),
l an end of exchange report (See Explicit exchange report: %MWxy.i.1, p. 186).
The diagram below describes the principle for managing an exchange.
Carrying out an:
explicit exchange
TLX DS 57 PL7 40E 09/2000
Detecting an
exchange in
progress
Report
for end of
exchange
175
Language objects
List of explicit
exchange
objects
The table below summarizes the explicit exchange objects in the application-specific
counting function.
Object
Content
Type
%MWxy.i.MOD.2
Module fault status word (updated by the
READ_STS%CHxy.MOD instruction)
State
%MDxy.i.4
Preset value
Parameter
%MDxy.i.6
Value of threshold 0
Parameter
%MDxy.i.8
Value of threshold 1
Parameter
%MDxy.i.10
High setpoint value (CTY2A/4A)
Absolute encoder offset value (CTY2C)
Parameter
Low setpoint value (CTY2A/4A)
Overspeed threshold (CTY2C)
Parameter
%MDxy.i.22
Frequency output period Q3 (CTY2C)
Parameter
%MDxy.i.24
Target speed (special function number 3,
CTY2C)
Parameter
%MWxy.i.2 and 3
Counting channel fault diagnostics i of the
module in position xy (See Channel standard
fault, %MWxy.i.2, p. 178)
State
%MWxy.i.14 and 15
Switch 0 SET conditions (See 0 counter output
SET commands, %MWxy.i.14, p. 179)
Parameter
%MWxy.i.16 and 17
Switch 0 RESET conditions (See 0 counter
output RESET commands, %MWxy.i.16,
p. 180)
Parameter
%MWxy.i.18 and 19
Switch 1 SET conditions (See 1 counter output
SET commands, %MWxy.i.18, p. 181)
Parameter
%MWxy.i.20 and 21
Switch 1 RESET conditions (See 1 counter
output RESET commands, %MWxy.i.20,
p. 182)
Parameter
%MWxy.i.26
Stopping speed (special function number 3,
CTY2C)
Parameter
%MWxy.i.27
Speed measurement period (CTY2C)
Parameter
%MWxy.i.28
Reserved for special functions (CTY2C)
Parameter
%MDxy.i.12
176
l
l
l
l
TLX DS 57 PL7 40E 09/2000
Language objects
Breakdown of objects for user defined exchange
At a glance
This part collates the word type objects for user defined exchange, whose bits have
a particular meaning. This objects are introduced in detail below, bit by bit.
Observations
l A bit’s meaning extends to State 1. The non Boolean bits (neither true nor false)
are detailed to avoid any ambiguity.
l None of the bits are used.
Summary
l xy shows the module’s position.
l i shows the channel number (from 0) in the module.
Module error
flags:
%MWxy.MOD.2
The table below introduces the meanings of the module state word’s bits. These bits
do not have standard symbols and are read by a READ_STS %CHxy.MOD.
TLX DS 57 PL7 40E 09/2000
Address
Meaning
%MWxy.MOD.2:X0
Broken down module
%MWxy.MOD.2:X1
Faulty channel(s)
%MWxy.MOD.2:X5
Different hardware and software configurations
%MWxy.MOD.2:X6
Module is absent or switched off
177
Language objects
Channel
standard fault,
%MWxy.i.2
Specific channel
faults,
%MWxy.i.3
178
The table below introduces the meanings of the CH_FLT status word bits.
Reading can be done via a READ_STS %CHxy.i.
Address
Standard symbol
Meaning
%MWxy.i.2:X0
COUNT_INP_FLT
Counting input error
%MWxy.i.2:X1
COUNT_APP_FLT
Counting application fault
%MWxy.i.2:X3
AUX_IO_FLT
Auxiliary I/O
%MWxy.i.2:X4
INTERNAL_FLT
Internal error or channel self-testing
%MWxy.i.2:X5
CONF_FLT
Different hardware and software configurations
%MWxy.i.2:X6
COMMUNIC_FLT
Communication error with the PLC
%MWxy.i.2:X7
APPLI_FLT
Application fault
%MWxy.i.2:X8
and
%MWxy.i.2:X9
CH_LED0,1
Green indicator’s command bits CHx (channel
state)
00 = off, 01 = blinking, 11 = lit
%MWxy.i.2:X11
AUX_SUPPL_FLT
Auxiliary I/O supply fault
%MWxy.i.2:X12
SHORT_CIRC_FLT
Output short-circuit error
%MWxy.i.2:X13
ENC_SUPPLY_FLT
Supply, encoder or potential difference error
%MWxy.i.2:X14
LINE_BRK_FLT
Encoder line break or short-circuit error
%MWxy.i.2:X15
SSI_TRAME_FLT
Transmission of SSI absolute encoder frame
(CTY 2C) error
The table below introduces the meanings of the %MWxy.i.3 channel status word
bits. Reading can be done via a READ_STS %CHxy.i.
Address
Standard symbol
Meaning
%MWxy.i.3:X0
CH_CONF_FLT
Channel configuration error
%MWxy.i.3:X1
XERFLOW_FLT
Measurement overrun error
%MWxy.i.3:X2
ABS_ERROR_FLT
Specific absolute encoder error
%MWxy.i.3:X3
OVERSPEED_FLT
Overspeed error
TLX DS 57 PL7 40E 09/2000
Language objects
0 counter output
SET commands,
%MWxy.i.14
0 counter output
SET commands,
%MWxy.i.15
The table below introduces the meanings of the %MWxy.i.14 command word bits.
The requests used are those associated to the (READ_PARAM, WRITE_PARAM...)
parameters.
Address
Standard symbol
Meaning: Setting the 0 counter output to 1
%MWxy.i.14:X0
S0_ENAB
on confirmation
%MWxy.i.14:X1
S0_PRES
on preset
%MWxy.i.14:X2
S0_CAPT
on capture
%MWxy.i.14:X4
S0_MOD_INC
on +direction modulo overshoot
%MWxy.i.14:X5
S0_MOD_DEC
on -direction modulo overshoot
The table below introduces the meanings of the %MWxy.i.15 command word bits.
The requests used are those associated to the (READ_PARAM, WRITE_PARAM...)
parameters.
Address
TLX DS 57 PL7 40E 09/2000
Standard symbol
Meaning: Setting the 0 counter output to 1
%MWxy.i.15:X0
S0_TH0_INC
on +direction 0 threshold overshoot
%MWxy.i.15:X1
S0_TH0_DEC
on -direction 0 threshold overshoot
%MWxy.i.15:X2
S0_C_SUP_TH0
if the captured value is more than or equal to 0
%MWxy.i.15:X3
S0_C_INF_TH0
if the captured value is less than the 0 threshold
%MWxy.i.15:X4
S0_TH1_INC
on +direction 1 threshold overshoot
%MWxy.i.15:X5
S0_TH1_DEC
on -direction 1 threshold overshoot
%MWxy.i.15:X6
S0_C_SUP_TH1
if the captured value is more than or equal to 1
%MWxy.i.15:X7
S0_C_INF_TH1
if the captured value is less than the 1 threshold
%MWxy.i.15:X8
S0_HISP_INC
on high setpoint crossing
%MWxy.i.15:X9
S0_HISP_DEC
on high setpoint crossing
%MWxy.i.15:X10
S0_C_SUP_HISP
if the captured value is more than or equal to the
high setpoint
%MWxy.i.15:X12
S0_LOSP_INC
on +direction low crossing setpoint
%MWxy.i.15:X13
S0_LOSP_DEC
on -direction low crossing setpoint
%MWxy.i.15:X15
S0_C_INF_LOSP
if the captured value is less than the low setpoint
179
Language objects
0 counter output
RESET
commands,
%MWxy.i.16
0 counter output
RESET
commands,
%MWxy.i.17
180
The table below introduces the meanings of the %MWxy.i.16 command word bits.
The requests used are those associated to the (READ_PARAM, WRITE_PARAM...)
parameters.
Address
Standard symbol
Meaning: Setting the 0 counter output to 0
%MWxy.i.16:X0
R0_ENAB
on confirmation
%MWxy.i.16:X1
R0_PRES
on preset
%MWxy.i.16:X2
R0_CAPT
on capture
%MWxy.i.16:X4
R0_MOD_INC
on +direction modulo overshoot
%MWxy.i.16:X5
R0_MOD_DEC
on -direction modulo overshoot
The table below introduces the meanings of the %MWxy.i.17 command word bits.
The requests used are those associated to the (READ_PARAM, WRITE_PARAM...)
parameters.
Address
Standard symbol
Meaning: Setting the 0 counter output to 0…
%MWxy.i.17:X0
R0_TH0_INC
on +direction 0 threshold overshoot
%MWxy.i.17:X1
R0_TH0_DEC
on -direction 0 threshold overshoot
%MWxy.i.17:X2
R0_C_SUP_TH0
if the captured value is more than or equal to the
0 threshold
%MWxy.i.17:X3
R0_C_INF_TH0
if the captured value is less than the 0 threshold
%MWxy.i.14:X4
R0_TH1_INC
on +direction 1 threshold overshoot
%MWxy.i.17:X5
R0_TH1_DEC
on -direction 1 threshold overshoot
%MWxy.i.17:X6
R0_C_SUP_TH1
if the captured value is more than or equal to the
1 threshold
%MWxy.i.17:X7
R0_C_INF_TH1
if the captured value is less than the 1 threshold
%MWxy.i.17:X8
R0_HISP_INC
on high setpoint crossing
%MWxy.i.17:X9
R0_HISP_DEC
on high setpoint crossing
%MWxy.i.17:X10
R0_C_SUP_HISP
if the captured value is more than or equal to the
high setpoint
%MWxy.i.17:X12
R0_LOSP_INC
on +direction low crossing setpoint
%MWxy.i.17:X13
R0_LOSP_DEC
on -direction low crossing setpoint
%MWxy.i.17:X15
R0_C_INF_LOSP
if the captured value is less than the low setpoint
TLX DS 57 PL7 40E 09/2000
Language objects
1 counter output
SET commands,
%MWxy.i.18
1 counter output
SET commands,
%MWxy.i.19
The table below introduces the meanings of the %MWxy.i.18 command word bits.
The requests used are those associated to the (READ_PARAM, WRITE_PARAM...)
parameters.
Address
Standard symbol
Meaning: Setting the 1 counter output to 1…
%MWxy.i.18:X0
S1_ENAB
on confirmation
%MWxy.i.18:X1
S1_PRES
on preset
%MWxy.i.18:X2
S1_CAPT
on capture
%MWxy.i.18:X4
S1_MOD_INC
on +direction modulo overshoot
%MWxy.i.18:X5
S1_MOD_DEC
on -direction modulo overshoot
The table below introduces the meanings of the %MWxy.i.19 command word bits.
The requests used are those associated to the (READ_PARAM, WRITE_PARAM...)
parameters.
Address
TLX DS 57 PL7 40E 09/2000
Standard symbol
Meaning of setting the 1 counter output to 1…
%MWxy.i.19:X0
S1_TH0_INC
on +direction 0 threshold overshoot
%MWxy.i.19:X1
S1_TH0_DEC
on -direction 0 threshold overshoot
%MWxy.i.19:X2
S1_C_SUP_TH0
if the captured value is more than or equal to the
0 threshold
%MWxy.i.19:X3
S1_C_INF_TH0
if the captured value is less than the 0 threshold
%MWxy.i.19:X4
S1_TH1_INC
on +direction 1 threshold overshoot
%MWxy.i.19:X5
S1_TH1_DEC
on -direction 1 threshold overshoot
%MWxy.i.19:X6
S1_C_SUP_TH1
if the captured value is more than or equal to the
1 threshold
%MWxy.i.19:X7
S1_C_INF_TH1
if the captured value is less than the 1 threshold
%MWxy.i.19:X8
S1_HISP_INC
on high setpoint crossing
%MWxy.i.19:X9
S1_HISP_DEC
on high setpoint crossing
%MWxy.i.19:X10
S1_C_SUP_HISP
if the captured value is more than or equal to the
high setpoint
%MWxy.i.19:X12
S1_LOSP_INC
on +direction low crossing setpoint
%MWxy.i.19:X13
S1_LOSP_DEC
on -direction low crossing setpoint
%MWxy.i.19:X15
S1_C_INF_LOSP
if the captured value is less than the low setpoint
181
Language objects
1 counter output
RESET
commands,
%MWxy.i.20
1 counter output
RESET
commands,
%MWxy.i.21
182
The table below introduces the meanings of the %MWxy.i.20 command word bits.
The requests used are those associated to the (READ_PARAM, WRITE_PARAM...)
parameters.
Address
Standard symbol
Meaning: Setting the 1 counter output to 0…
%MWxy.i.20:X0
R1_ENAB
on confirmation
%MWxy.i.20:X1
R1_PRES
on preset
%MWxy.i.20:X2
R1_CAPT
on capture
%MWxy.i.20:X4
R1_MOD_INC
on +direction modulo overshoot
%MWxy.i.20:X5
R1_MOD_DEC
on -direction modulo overshoot
The table below introduces the meanings of the %MWxy.i.21 command word bits.
The requests used are those associated to the (READ_PARAM, WRITE_PARAM...)
parameters.
Address
Standard symbol
Meaning: Setting the 1 counter output to 0…
%MWxy.i.21:X0
R1_TH0_INC
on +direction 0 threshold overshoot
%MWxy.i.21:X1
R1_TH0_DEC
on -direction 0 threshold overshoot
%MWxy.i.21:X2
R1_C_SUP_TH0
if the captured value is more than or equal to the
0 threshold
%MWxy.i.21:X3
R1_C_INF_TH0
if the captured value is less than the 0 threshold
%MWxy.i.21:X4
R1_TH1_INC
on +direction 1 threshold overshoot
%MWxy.i.21:X5
R1_TH1_DEC
on -direction 1 threshold overshoot
%MWxy.i.21:X6
R1_C_SUP_TH1
if the captured value is more than or equal to the
1 threshold
%MWxy.i.21:X7
R1_C_INF_TH1
if the captured value is less than the 1 threshold
%MWxy.i.21:X8
R1_HISP_INC
on high setpoint crossing
%MWxy.i.21:X9
R1_HISP_DEC
on high setpoint crossing
%MWxy.i.21:X10
R1_C_SUP_HISP
if the captured value is more than or equal to the
high setpoint
%MWxy.i.21:X12
R1_LOSP_INC
on +direction low crossing setpoint
%MWxy.i.21:X13
R1_LOSP_DEC
on -direction low crossing setpoint
%MWxy.i.21:X15
R1_C_INF_LOSP
if the captured value is less than the low setpoint
TLX DS 57 PL7 40E 09/2000
Language objects
Explicit object exchange and report management
At a Glance
When the data is exchanged between the PLC memory and the module,
the considerations taken by the data module may require the running of several task
cycles.
To manage the exchanges, two words are used:
l %MWxy.i: Exchange in progress,
l %MWxy.i.1: Report.
Illustration
The illustration below shows the various data bits significant to exchange
management.
Reconfiguration (X15)
Adjustment (X2)
Command (X1)
Status (X0)
Status parameters
Command parameters
Adjustment parameters
TLX DS 57 PL7 40E 09/2000
READ_STS
WRITE_CMD
WRITE_PARAM
READ_PARAM
SAVE_PARAM
RESTORE_PARAM
183
Language objects
Description of
the significant
data bits
Each of the %MWxy.i and %MWxy.i.1 word bits are associated with a parameter:
l the bits in position 0 are associated with the status parameters:
l the %MWxy.i.X0 bit shows whether a status word read request is in progress,
l the bits in position 1 are associated with the control parameters:
l the %MWxy.i.0:X1 bit shows whether the control parameters are sent to
channel i of the module,
l the %MWxy.i.1:X1 bit specifies whether the control parameters are accepted
by channel i of the module,
l the bits in position 2 are associated with the adjustment parameters:
l the MWxy.i.0:X2 bit indicates whether the adjustment parameters have been
exchanged with channel i of the module ( by WRITE_PARAM,
READ_PARAM, SAVE_PARAM, RESTORE_PARAM),
l the %MWxy.i.1:X2 bit specifies whether the adjustment parameters are
accepted by the module. If the exchange has progressed correctly, the bit
changes to 0,
l the bits in position 15 show a reconfiguration on channel i of the module from the
console (modification of configuration parameters + channel cold start).
Note: The exchange and report words also exist at module level
(%MWxy.MOD and %MWxy.MOD.1).
184
TLX DS 57 PL7 40E 09/2000
Language objects
Example
Phase 1: Transmitting data with the help of the WRITE_PARAM instruction
PLC memory
1
0
Status parameters
Command parameters
Adjustment parameters
I/O memory module or
built-in task function
Status parameters
Command parameters
Adjustment parameters
When the instruction is scanned by the PLC processor, the Exchange in progress
bit is set to 1 in %MWxy.
Phase 2: Analysis of data by the I/O and report module
PLC memory
0
1
Status parameters
Command parameters
Adjustment parameters
I/O memory module or
built-in task function
Status parameters
Command parameters
Adjustment parameters
When the data is exchanged between the PLC memory and the module, the data
module acknowledgement is managed by the %MWxy.i.1:X2 bit: Report (0 = correct
exchange, 1 = unsuccessful exchange).
Note: There are no adjustment parameters at the module level.
TLX DS 57 PL7 40E 09/2000
185
Language objects
Explicit
exchange
operation
indicators:
%MWxy.i.0
Explicit
exchange report:
%MWxy.i.1
186
The table below shows the meaning of channel exchange control bits EXCH_STS.
Bit
Standard symbol
Meaning
0
STS_IN_PROGR
Status word exchange in the channel in progress
1
COMMAND_IN_PROGR Command word exchange in progress
2
ADJUST_IN_PROGR
Adjustment word exchange (parameters) in progress
15
RECONF_IN_PROGR
Channel reconfiguration in progress
The table below shows the meaning of report bits EXCH_ERR.
Bit
Standard symbol
Meaning
0
STS_READ_ERR
Failure when reading channel status
1
COMMAND_ERR
Failure when sending a command word
2
ADJUST_ERR
Failure when sending an adjustment word
15
RECONF_ERR
Failure when reconfiguring the channel
TLX DS 57 PL7 40E 09/2000
Example of the counting
application
10
At a glance
Subject of this
chapter
This chapter introduces an example of the counting application, from the
configuration of the modules to the application’s development in the PLC.
What’s in this
Chapter?
This Chapter contains the following Sections:
TLX DS 57 PL7 40E 09/2000
Section
Topic
10.1
Introducing and configuring the example
Page
189
10.2
Programming details for the example
195
187
Example of the application
188
TLX DS 57 PL7 40E 09/2000
Example of the application
10.1
Introducing and configuring the example
At a Glance
Subject of this
section
This section shows an example of the counting application and describes how the
hardware should be configured for the program to be used.
What’s in this
Section?
This Section contains the following Maps:
TLX DS 57 PL7 40E 09/2000
Topic
Page
Introduction to an example of an application
190
Configuration of the PLC
192
189
Example of the application
Introduction to an example of an application
At a glance
This very simple example shows a TSX CTY 2A counting module being used in
tandem with a discrete module. It consists of a MAST task and an event task.
Illustration
The illustration above shows the principle of monitoring automated palette stacking.
C
M
V
P
25
50
new palette
new compartment
Command frame
190
TLX DS 57 PL7 40E 09/2000
Example of the application
The application’s
external
specifications
The PLC is loaded to monitor the palette stacking. Each palette has three
compartments. The compartments are put into place beneath the stacking device
using a V jack. They are put into 4 positions, with the last one for moving out full
palettes.
There are two types of palettes, one with 25 and one with 50 compartments.
The operating principle is as follows:
l The M motor powers a conveyor belt which carries the objects.
l A C sensor counts the objects before they are put back into the palette.
l A telescopic V jack is used to move on to the next compartment when the one in
progress is full, and it moves out the full palette.
l A P plate allows you to change the palette.
Using the motor brings about the physical confirmation of the counting.
The dialog operator consists of the following controls:
l 25/50 switch: allows you to choose the type of palette. This takes effect for the
next palette (on state),
l new palette button: forces the palette to be changed (on the rising edge),
l new compartment button: forces the compartment to be changed (on the rising
edge).
TLX DS 57 PL7 40E 09/2000
191
Example of the application
Configuration of the PLC
The PLC
structure
The diagram below shows the PLC’s constitution.
Configuration
XMWI
XTI..
TSX 57202 V3.0...
0
P
S
Y
0
T
S
X
2
6
0
0
5
7
2
0
2
1
2
C
T
Y
C
T
Y
2
A
2
C
3
D
E
Y
4
5
6
3
2
D
2
K
1
Note: the CTY 2C module in position 2 is not used in this example.
Configuration of
the processor
The diagram below shows the configuration of the TSX 57202 processor used in the
example.
TSX 57202 [RACK 0 POSITION 0]
Configuration
Reference: TSX P processor 57202
Operating Mode
Run/Stop input
Tasks
MAST
Cyclic
Periodic
Automatic start in Run
%MWi Reset on cold restart
Memory card
None
192
Watchdog
FAST
Period:
Watchdog
FIPIO Mode
Cycle time
network (calculated)
50 ms
Controlled
ms
Free
ms
250
FIPIO Mode
10 ms
Cycle time
network (calculated)
ms
100
Controlled
ms
Free
TLX DS 57 PL7 40E 09/2000
Example of the application
The counting
module’s
configuration
The diagram below shows the configuration of the TSX CTY 2A module used in the
example.
TSX CTY 2A [RACK 0 POSITION 1 ]
Configuration
Reference: MOD.COUNT. 2 CHANNELS 40KHZ
Symbol:
Counter:
Counter 0
Function:
Down counting
Inpurt interface
1 IA input
Solid State contact
Preet on IPres
Rising edge IPres
Task:
MAST
Event
EVT
0
Reset output Q0
Manual
Automatic
Fallback mode
Reset
Maintain
Operation on switching to 0
No down counter preset
With down counter preset
The C sensor (for counting the objects) is mated with the 0 channel.
TLX DS 57 PL7 40E 09/2000
193
Example of the application
The discrete
module’s
configuration
The diagram below shows the configuration of the TSX DEY 32D2K module used in
the example.
TSX DEY 32D2K [ RACK 0 POSITION 3 ]
Configuration
Designation: 32E 24VCC SINK CONN
Chan
Symbol
0
1
2
3
4
5
6
7
8
9
10
11
12
13 NOUV_PAL
14 NOUV_COMP
15 TAILLE_COMP
Supply Monit.
Task
Active
MAST
MAST
The assignments of the inputs are as follows:
l input 13: new palette forcing button (active at 1)
l input 14: new compartment forcing button (active at 1)
l input 15: 25/50 objects per compartment switch (1 = 50 objects).
Note: this module is only used for input.
Assignment of
the internal bits
and words
194
The example uses the assignments of the following internal variables:
l %M0: at 1 starts the M motor, at 0 stops it.
l %M1: at 1 the palette is being positioned, at 0 it is ready to receive the objects.
l %MW0: positions of the jack: 1, 2, 3 (corresponding to the three compartments)
and 4 (for moving out the palette).
l %MW1: 25 or 50 (for storing the size of a palette’s compartments).
TLX DS 57 PL7 40E 09/2000
Example of the application
10.2
Programming details for the example
At a Glance
Subject of this
section
This section describes in detail the PL7 programming needed to install the counting
application.
What’s in this
Section?
This Section contains the following Maps:
TLX DS 57 PL7 40E 09/2000
Topic
Page
The application structure
196
Program: preliminary processing
197
Program: sequential processing
198
Program: step 0 of the sequential processing
199
Program: step 2 of the sequential processing
202
Program: subsequent processing
204
Program: event processing
205
195
Example of the application
The application structure
Structure view of
the application
The diagram below shows the application’s structure.
Application Browser
Structure view
STATION
Configuration
Hardware configuration
Software configuration
Configuring Grafcet objects
Program
Mast task
Sections
Sequential
LD
LD Prl
G7 Chart
LD
LD Post
Sr
Events
LD Evt0
DFB types
Variables
+
Animation tables
Documentation
+
Operating screens
196
TLX DS 57 PL7 40E 09/2000
Example of the application
Program: preliminary processing
The aims of the
preliminary
processing
The preliminary processing manages the forced operating modes:
l changing the palette
l changing the compartment
The operation of
the preliminary
processing
The diagram below shows the programming of the preliminary processing.
LD: MAST - Sequential - Prl
(*new compartment*)
%M0
%I3.14
P
R
(*new palette: reset grafcet*)
%S21
%I3.13
P
S
%I1.0.ERR
P
(*General and special unmasking*)
OPERATE
UNMASKEVT()
%QW1.0.3:X5
S
F2
TLX DS 57 PL7 40E 09/2000
F3
P
F4
N
F5
F6
F7
F8
F9
F10
S
F11
R
F12
1.F2
OPER COHP
H
1.F3
1.F4
COHP
V
1.F5
1S.F6
1F7
F (...)
1.F8
197
Example of the application
Program: sequential processing
General
Sequential processing constitutes the heart of the application. It concerns
monitoring the compartments being filled and changing the palette.
Flowchart of
the sequential
processing
The diagram below shows the GRAFCET flowchart of the sequential processing.
GRAFCET: MAST - Sequential - Chart
0
(*new palette*)
1
(*waiting to position compartment>>
(*filling compartment*)
2
F2
198
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
1F2
TLX DS 57 PL7 40E 09/2000
Example of the application
Program: step 0 of the sequential processing
Introduction
of step 0
Step 0 initializes the loop:
l stops the motor,
l confirms the counting module’s IVal input,
l unmasks the zero value overshoot event.
Step 0: Action
on P1 activation
The diagram below shows the action on activation of step 0 (P1).
LD: MAST - Sequential - Chart - PAGE0 %X0 P1
(*stopping motor for whatever reason*)
%M0
R
(*take palette out*)
OPERATE
%MW0:=4
(*new palette load request*)
%M1
S
(*Store compartment sizes*)
TLX DS 57 PL7 40E 09/2000
%I3.15
OPERATE
%MW1:=50
%I3.15
OPERATE
%MW1:=25
199
Example of the application
The diagram below shows the result of the action on activation of step 0 (P1).
LD: MAST - Sequential - Chart - PAGE0 %X0 P1
(*writing of down counter preset value according to compartment size*)
OPERATE
%MD1.0.4:=%MW1
OPERATE
WRITE_PARAM %CH5.0
(*confirm IEna enabling input *)
%Q1.0.5
S
(*prepare direct preset*)
%Q1.0.1
R
(*unmask event enabling*)
OPERATE
%QW1.0.1 := 16#0020
Step 0: action on
P0 deactivation
The diagram below shows the action on deactivation of step 0 (P0).
LD: MAST - Sequential - Chart - PAGE0 %X0 P0
(*Return the jack to its starting position*)
OPERATE
%MW0:=1
(*Direct preset*)
%Q1.0.1
S
F2
Transition of
step 0 to step 1
200
F3
P
F4
N
F5
X
F6
F7
F8
F9
F10
F11
S
F12
R
S.F1
S.F2
OPER
S.F3
COHP
H
S.F4
COHP
V
S.F5
S.F6
FB
S.F7
F (...)
S.F8
The transition conditions from step 0 to step 1 are as follows:
l palette ready to receive objects,
l exchanges between the PLC and the counting module are terminated.
TLX DS 57 PL7 40E 09/2000
Example of the application
Illustration
The diagram below shows the transition conditions from step 0 to step 1.
LD: MAST - Sequential - Chart - PAGE0 %X(0) >%X(1)
%M1
F2
TLX DS 57 PL7 40E 09/2000
%MW1.0:X1
F3
P
F4
N
F5
X
F6
F7
F8
F9
COHP
H
I F4
COHP
V
I F5
201
Example of the application
Program: step 2 of the sequential processing
Introduction
of step 2
Step 2 deals with monitoring the compartments being stacked.
Step 2: Action
on P1 activation
The diagram below shows the action on activation of step 2 (P1).
LD: MAST - Sequential - Chart - PAGE 0 %X2 P1
%M0
S
Step 2: action on
P0 deactivation
The diagram below shows the action on deactivation of step 2 (P0).
LD: MAST - Sequential - Chart - PAGE 0 %X2 P0
(*Advance palette by one notch*)
OPERATE
INC %MW0
Transition from
step 2 to step 0
The diagram below shows the transition conditions from step 2 to step 0.
LD: MAST - Sequential - Chart - PAGE0 %X(2)->%X(0)
%M0
F2
202
COMPARE
%MW0>=3
F3
P
F4
N
F5
X
F6
F7
F8
F9
COHP
H
I F4
COHP
V
I F5
TLX DS 57 PL7 40E 09/2000
Example of the application
Transition from
step 2 to step 1
The diagram below shows the transition conditions from step 2 to step 1.
LD: MAST - Sequential - Chart - PAGE0 %X(2)->%X(1)
%M0
COMPARE
%MW0<4
F2
Transition from
step 1 to step 2
F3
P
F4
N
F5
X
F6
F7
F8
COHP
H
I F4
F9
COHP
V
I F5
The diagram below shows the transition conditions from step 1 to step 2,
(this always applies).
LD: MAST - CHART - PAGE 0 %X ( 1 ) - > %X ( 2 )
F2
TLX DS 57 PL7 40E 09/2000
F3
P
F4
N
F5
X
F6
F7
F8
F9
#
F10
COHP
H
S.F4
COHP
V
S.F5
203
Example of the application
Program: subsequent processing
The aim of
subsequent
processing
Subsequent processing manages errors and stops the motor if there is a PLC error.
The operation
of subsequent
processing
The diagram below shows the programming of the subsequent processing.
LD: MAST - Sequential - Post
(*Stop motor in the event of an error*)
%I1.0.ERR
OPERATE
READ_STS %CH1.0
%M0
R
204
TLX DS 57 PL7 40E 09/2000
Example of the application
Program: event processing
At a glance
Event processing stops the motor by resetting the %M0 when the switch to zero
value event is enabled.
Illustration
The diagram below shows the programming of the 0 event task.
LD: EVTO - Evt0
%M0
%IW1.0.3:X5
R
F2
TLX DS 57 PL7 40E 09/2000
F3
P
F4
N
F5
F6
F7
F8
F9
F10
S
F11
R
F12
1.F2
OPER COHP
H
1.F3
1.F4
COHP
V
1.F5
1S.F6
1F7
F (...)
1.F8
205
Example of the application
206
TLX DS 57 PL7 40E 09/2000
B
AC
Index
A
Adjusting
Absolute encoder offset, 128
Fault processing, 130
Frequency output, 133
Preset, 129
Set points, 131
Speed measurement, 132
Switches, 134
Thresholds, 131
Adjustment
At a Glance, 126
C
Configuration
Absolute encoder interface, 110
Capturing a counting register, 113
Input TSX CTY 2A/4A, 106
Input TSX CTY 2C, 107
Screen, 104
Configuring
Combined input IEna/Q2, 116
Event processing, 115
Faulty outputs, 120
Multiplexing absolute encoders, 117
Preset, 114
Reset, 114
Setpoint crossing, 119
Special functions, 122
Switch to zero, 119
TLX DS 57 PL7 40E 09/2000
Counting
Direction, 39
Introduction, 11
Resetting, 53
CTY2A/4A
Introduction, 17
CTY2C
Introduction, 26
D
Dealing with an
invalid measurement, 99
Debugging
At a Glance, 138
LEDs and buttons, 146
Maximized screen, 139
Minimized screen, 141
Use, 144
Diagnostics
Display, 150
List of faults, 152
Down counting
Principle, 19, 21
E
Entrée
Interface, 38
Event processing
Programming, 162
207
Index
Example
Configuration, 189, 192
Programming, 195
F
Fault
Masking, 130
Storing, 130
Faults
Processing, 97
Function
Capture, 44
Comparison, 62
Event processing, 160
Overspeed monitoring, 91
Physical outputs, 77
Preset, 48
Reset, 48
Special, 93
Switch, 67
U
Up counting
Principle, 19, 21
Up counting/Down counting
Principle, 22, 28
Up counting/down counting
Principle, 24, 30
I
Input
Counting, 38
L
Language objects
Exchange management, 183
Explicit exchanges, 174
Implicit, 167
User defined exchanges, 177
O
Operating modes
Counting function, 157
S
Speed measurement
Principle, 31
208
TLX DS 57 PL7 40E 09/2000
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