Programming details for the example. Schneider Electric Software PLC Application-Specific Functions, Counting, Junior/Pro, 4.5

Below you will find brief information for TSX CTY 2A, TSX CTY 4A, TSX CTY 2C. These counting modules are designed for Premium modular PLCs, providing high-speed counting with features such as comparisons, captures, preset/reset, and configurable discrete outputs. They support upcounting, downcounting, and speed measurement, offering versatile solutions for industrial monitoring applications. The modules also include event processing capabilities and fault detection mechanisms for reliable operation.

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Example of the application

10.2 Programming details for the example

At a Glance

Subject of this section

What's in this

Section?

This section describes in detail the PL7 programming needed to install the counting application.

This section contains the following topics:

Topic

The application structure

Program: preliminary processing

Program: sequential processing

Program: step 0 of the sequential processing

Program: step 2 of the sequential processing

Program: subsequent processing

Program: event processing

Page

190

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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

Prl

Chart

Post

Events

DFB types

Variables

Evt0

Animation tables

Documentation

Operating screens

Example of the application

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Example of the application

Program: preliminary processing

The aims of the preliminary processing z z

The preliminary processing manages the forced operating modes: changing the palette, 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*)

%I3.14

(*new palette: reset grafcet*)

%M0

%I3.13

%S21

%I1.0.ERR

(*General and special unmasking*)

OPERATE

UNMASKEVT()

%QW1.0.3:X5

F2 F3

F5 F6 F7 F8 F9 F10

F11

F12 1.F2

OPER COHP

1.F3

1.F4

COHP

1.F5

1S.F6

1F7

F (...)

1.F8

192

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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

(*new palette*)

(*waiting to position compartment>>

(*filling compartment*)

F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 1F2

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Example of the application

Program: step 0 of the sequential processing

Introduction of step 0 z z

Step 0 initializes the loop: stops the motor, confirms the counting module’s IVal input, z unmasks the zero value overshoot event.

194

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Example of the application

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

(*take palette out*)

OPERATE

%MW0:=4

(*new palette load request*)

%M1

(*Store compartment sizes*)

%I3.15

OPERATE

%MW1:=50

OPERATE

%MW1:=25

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

(*prepare direct preset*)

%Q1.0.1

(*unmask event enabling*)

OPERATE

%QW1.0.1 := 16#0020

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Example of the application

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

F2 F3

F5 F6 F7

F8 F9 F10 F11

F12

S.F1

S.F2

OPER

S.F3

COHP

S.F4

COHP

S.F5

S.F6

S.F7

F (...)

S.F8

Transition of step 0 to step 1

Illustration

The transition conditions from step 0 to step 1 are as follows: z palette ready to receive objects, z exchanges between the PLC and the counting module are terminated.

The diagram below shows the transition conditions from step 0 to step 1.

LD: MAST - Sequential - Chart - PAGE0 %X(0) >%X(1)

%M1 %MW1.0:X1

F2 F3

F5 F6

F7 F8 F9

COHP

I F4

COHP

I F5

196

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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

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

COMPARE

%MW0>=3

F2 F3 F4

P N

F5 F6 F7

F8 F9

COHP

I F4

COHP

I F5

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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 F3 F4

P N

F5 F6 F7

F8 F9

COHP

I F4

COHP

I F5

Transition from step 1 to step 2

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 F3

F5 F6 F7

F8 F9

F10

COHP

S.F4

COHP

S.F5

198

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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

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Example of the application

Program: event processing

At a glance

Illustration

Event processing stops the motor by resetting the %M0 when the switch to zero value event is enabled.

The diagram below shows the programming of the 0 event task.

LD: EVTO - Evt0

%IW1.0.3:X5

%M0

F2 F3

F5 F6 F7 F8 F9 F10

F11

F12 1.F2

OPER COHP

1.F3

1.F4

COHP

1.F5

1S.F6

1F7

F (...)

1.F8

200

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Index

A

Adjusting

Absolute encoder offset, 126

Fault processing, 128

Frequency output, 131

Preset, 127

Set points, 129

Speed measurement, 130

Switches, 132

Thresholds, 129

Adjustment

At a Glance, 124

C

Configuration

Absolute encoder interface, 110

Capturing a counting register, 112

Input TSX CTY 2A/4A, 106

Input TSX CTY 2C, 107

Screen, 104

Configuring

Combined input IEna/Q2, 115

Event processing, 114

Faulty outputs, 119

Multiplexing absolute encoders, 116

Preset, 113

Reset, 113

Setpoint crossing, 118

Special functions, 121

Switch to zero, 118

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Counting

CTY2A/4A

CTY2C

D

Dealing with an

invalid measurement, 100

Debugging

At a Glance, 136

LEDs and buttons, 143

Maximized screen, 137

Minimized screen, 139

Diagnostics

Down counting

E

Entrée

Interface, 37

Event processing

Programming, 157

A C

201

Index

Example

Configuration, 184, 187

Programming, 190

F

Fault

Faults

Function

Event processing, 155

I

Input

Counting, 37

L

Language objects

Exchange management, 178

Explicit exchanges, 169

Implicit, 161

User defined exchanges, 172

O

Operating modes

Counting function, 152

S

Speed measurement

Principle, 30

202

U

Up counting

Principle, 18, 19

Up counting/Down counting

Principle, 20, 27

Up counting/down counting

Principle, 22, 29

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Key features

High-speed counting capabilities (up to 1 MHz)
Configurable discrete outputs for rapid actions
Event processing for real-time response
Support for absolute encoders (TSX CTY 2C)
Speed measurement and monitoring (TSX CTY 2C)
Fault detection and handling

Frequently asked questions

These modules support upcounting, downcounting, and upcounting/downcounting modes.

The main difference is the number of channels: TSX CTY 2A has 2 channels, while TSX CTY 4A has 4 channels.

In addition to up/down counting, the TSX CTY 2C module supports speed measurement/monitoring and interfacing with absolute encoders.

Confirmation can be hardware-based via a physical input (IVal) or direct via software command.

Counting modules detect over-run, invalid mesurement and short circuits errors. They can be adjusted via adjustment screen of counting module ( TSX CTY2C).

User questions

Jennifer T.

What does an 'Invalid Measurement' indicate, and what conditions can trigger this fault?

An 'Invalid Measurement' indicates a loss of counting or measurement data, rendering the counting register unusable and setting counter outputs to 0. The Invalid measurement bit (%IWxy.i.2:X7) is set to 1. This fault can be triggered by a cold start or warm restart of the application, a fault on counting input (power supply fault, break in the sensor line, series frame transmission error, or a specific absolute encoder fault), exceeding the capacity of the counting register, or exceeding the speed threshold (TSX CTY 2C).

Patricia K.

How can the module's counting register be reinitialized?

The counting register can be reinitialized using preset or reset functions. Preset initializes the up/down counting register to a predefined value via software, while reset initializes the register to zero. These actions can be triggered manually or set to occur automatically.

10.2