AEG | 9600 D | User manual | AEG 9600 D User manual

Modicon
PC-L984-785
Extra Register
Programmable
Controller
User Manual
GM-L984-785
AEG
Rev. B
MODICON
Modicon
PC-L984-785
Extra Register
Programmable
Controller
User Manual
GM-L984-785
Rev. 6
May, 1993
MODICON, Inc.
One High Street
North Andover, Massachusetts 01845
Preface
The data and illustrations found in this book are not binding. We reserve the right
to modify out products in line with our policy of continuous product improvement.
Information in this document is subject to change without notice and should not be
construed as a commitment by Modicon, inc., Modicon, Inc., assumes no responsibility for any errors that may appear in this document.
No part of this document may be reproduced in any form or by any means, electronic or mechanical, without the express written permission of Modicon, Inc., All
rights reserved.
The following are trademarks of Modicon, Inc.:
ModiconB
Micro 984
PI90
984
984A
984B
984-380
984-480
984-381
984-485
984-385
984-680
ModbusB
984X
984-l 30
984-145
984-685
984-780
984-785
984-l 20
984-351
984-455
Modsoft@
Modbus Plus
IBM 8 is a registered trademark of international Business Machines, Inc.; IBM PC
is a trademark of international Business Machines, Inc. DOS@ is a copyright of
both IBM and Microsoft Corporation.
0 Copyright 1992, Modicon, Inc.
Printed in U. S. A.
Preface
iii
Table
of Contents
Chapter 1 Introduction . . . . . . .
.
The PC-L984-785
PLC . . .
Product Overview
.
.. ..... .
...
.
ExeclD
......................
Front Panel Status Indicators
.....
.
.
................
6
................
6
................
6
................
7
................
8
.
..
.
.
..
...
.
..
...
...
....
...........
Size of RAM ........................
Configuration Partition ................
Number of Discretes and Registers ......
................
8
...............
IO
................
12
................
13
......
15
... ..
. .. .
.... .. .. . .
..
. . ..
..
... ..
......
16
......
16
Chapter 4 The .EXE Loadable .....................................
DXLoadable ....................................................
......
16
......
18
......
19
23
24
Format .......................................................
24
Loading The .exe fi!e ............................................
Delete a .exe File ...............................................
24
Chapter 5 Commands
...........................................
29
31
........................................
Changes to Current Commands ...................................
32
New Modcomfunction
32
Peripheral Port Commands
iv
5
.... ..
......
Memory .....................
4
. . . . ................
.
......
Low Battery .....................
3
.............
..
..
.
.
.
.
Physical - Logical Overview
.
.............
..
Modbus Plus Address ..........
984-785
2
.
..
.
.
.
.
.
Specifics
2
..
Front Panel Controls ............
Chapter 3 PC-L984-785
.............
.............
.
.
Controls and Indicators .............
..
.
.
.
.
.
Hardware ......................
2
.
Reference Documents . . . . .
Extra Register Model .............
1
.............
.
.
............
.............
.
.
.
Controller Orientation ..............
..
.
.
Required Software Revisions
Chapter 2 Installation
.
.
.
785L Differences . . .
.‘
.
...........................................
Table of Contents
32
. 33
Standard Modbus Functions * .............
Mask Write 4X Register
................
Read and Write 4X Registers ............
. 33
. 33
. 34
.
..
Read FIFO Queue. ....................
Modified DX Functions ...................
36
XMWT and XMRD Function Blocks ......
..
.
37
.
37
Extended Memory Read and Write Functions
Appendix
A Stopped Error Codes
Stopped Error Codes ....................
36
. 37
CKSM Function ......................
Standard DX Loadable ................
........
......................
39
......................
40
Table of Contents
v
Figures
Figure 1 Location of Removable Executive and Memory Cartridges
..........
7
9
Figure 2 View Showing Controls and Indicators ..........................
Figure 3 Modbus Port DIP Switch Orientation and Coding .................
11
Figure 4 Modbus Plus Node Address DIP .............................
12
Figure 5 Memory Distribution .......................................
16
Figure 6 Modsoft Configuration Initialization for Extra Register L785 .........
17
Figure 7 Six Place Register Address in 984-785L
Extra Register ...........
Figure 8 P190 Emulator (DIBM) State Ram Configuration .................
Figure 9 Modsoft Configuration Loadabl Select .........................
Figure10
21
24
25
........................................
Loadablescreen
20
Figure 11 Loadable Dir selection ....................................
25
Figure 12 Setting the File Path for DX Load ...........................
26
Figure 13 DIBM 785L Extra Register Load DX Module Screen .............
27
Figure 14 .exe File Path Entry Screen ................................
28
Figure 15 .exe Loadable Directory Screen
............................
28
Figure 16 785L Extra Register Delete DX Module Softkeys ...............
29
Figure 17 Modbus Mask Write 4x Register Command ....................
33
Figure 18 Read and Write 4X Command
..............................
34
..............................
Figure 20 Extended Memory DX at Panel Level .........................
35
Figure 19 Read FIFO Queue Command
36
Tables
..
..
.
Table 1
Unit Upgrades
Table 2
Loadable DX Upgrades ..........................
Table 3
Memory Utilization ..............................
Table 4
..
..
Memory Partitions ..............................
Maximum Number of Discrete I/O Points and Registers * . .
Extended Memory Allocation ......................
DIP Switch for Modbus BAUD Rate Settings
Table 5
Table 6
Table 7
vi
................................
Table of Contents
.........
.. . 3
.. . 4
.. .. 6
. . . 11
. . . 18
. . . 19
. . . 37
Chapter
1
Introduction
o This document describes the functionality of the PC-L984-785
Programmable Controller. When used in an Extra Register Configuration, particular attention is given to deviations from other
984 product family members.
This manual does not apply when using the PC-L984-785
as a
PC-0984-785
replacement. Refer to GM-0984-501
for system
Planning and installation of the 785.
GM-L984-785
Chapter 1
Introduction
1
The PC-L984-785
PLC
Product Overview
The functionality of the new PC-L984-785
when used as an Extra Register Controller is similar to the 984-785, with the size of State RAM increased from the
12.5k to an optional 32k or 64k words, This controller provides more reference
numbers than any existing Modicon PLC. The User Logic area is increased to expand the amount of relay logic that can be programmed.
The re-arrangement of the storage memory, in the PLC, makes programming
loadable DXs easier. The programming can now be done in alternate languages
(such as Manufacturing State language, or C) on a PC. The loadable DX can either be loaded into the user logic area of page 0, or directly into the execution buffer of 160W320W480K bytes. The loadable DX files are in MS DOS relocatable
format, that are relocated by the controller.
The number of local (Drop 1) Input and Output points are increased from 512 to
1024.
The maximum value of constants is increased from 9999 to 65535, in all functions
with the exception of any DX function which specifies a lower limit.
The 785L supports the same User Logic set as defined in the 984 Systems Manual GM-0984-SYS
for the other 984 controllers and has, in addition, specific logic
functions to handle the enhanced Memory functionality. User Logic programming
can be implemented on any Modicon Programming Panel.
IT
Note
The functionality of the PC-L984-785,
when used as a replace-
ment controller for the 0984-785, remains identical to the 0984-785
(when used with the Extra Register Cartridge AS-E785-904).
785L Differences
One of the distinct features of this controller is the larger State RAM size of either
32 or 64K words. Another is the use of pages 1 through 8 as an execution buffer
2
Introduction
GWL984-785
Chmter
1
for loading special DX functions. Depending on the size of the main RAM (512 or
768K bytes) and your state RAM configuration election, the memory partitions into
four different allocations.
When you configure the memory by selecting either 32 or 64k state RAM, the partitioned result allows Extended Memory for 6X register files. Your selection sets
configuration parameters for controller downloading.
Due to the new memory arrangement, the 785L with the Extra Register excecutive
cartridge, you can not use the standard loadables designed for other dash-8 series controllers unless they are modified. Special versions for this controller are
identified by a “rev” byte in the header (following the name). For use in the 785L
this information must be rev OCO hex or higher.
Required Software Revisions
When used with the Extra Register excecutive cartridge, the PC-L984-785
Extra
Register Controller requires updates to the firmware in some of the options in the
984 family:
Table 1
Unit Upgrades
Unit
Remote I/O
S908
S985-800
C996
S980-800
-810
E785-914
Coprocessor
Map
GM-L984-785
Chaoter 1
Status
Minumum PROM Combination
Upgraded Exec #131
1005
1006
1000
1001
Modbus Plus
Executive
Needs Update Software
Needs Update
1000
Introduction
3
Table 2
Loadable DX Upgrades
Part
Loadable
- Disk Media
P190 Tape
Disk Media
PI 90 Tape
Disk Media
ICMP I DRUM
MTRM
EARS
EUCA
HLTH
MAP3
FNXX
CALL
SW-APS&SDA
SW-AP98-STA
SW-MRTM-1 DA
SW-MRTM-1 TA
SW-APSD-EDA
SW-EUCA-D8L
SW-HLTH-D8L
SW-APPL-MAP
SW-AP98-GDA
SW-AP98-CXA
Hot standby is supported with an AS-S911-801
module with the following limits:
HSBY data transfers are limited to 9999 registers, including up to 1000 input
registers (3x references), 8192 discrete outputs (Ox references), and 8192
discrete inputs (1 x references)
The Hot standby Loadable must be Rev. C or greater
The Remote I/O processor is an S908-1 xx with an E908-131 Executive PROM
1006 or higher. Both RIOP’s in the hot standby system must have identical PROM
revision levels.
o The PC-L984-785,
when used as a PC-0984-785
replacement, retains identi-
cal functionality to the PC-0984-785.
Reference Documents
GM-0984-SYS
GM-0984-501
Modicon 984 Programmable Controller S,ystems Manual
Modicon 6801685 780/785/785L
System Planning and Installation Guide
GM-MSFT-001
Modicon Modsoft Programmer User Manual
PI-MBUS-300
Rev. C Modicon Modbus Protocol Reference Guide
GM-MBPL-004
X85 Controller Modbus Plus installation
GM-MBPL-001
Modbus System Planing
4
Introduction
GM-L984-785
Chapter 1
Chapter 2
Installation
o This Chapter provides an orientation regarding the
and Start up the PC-L984-785
when used with the
ter Executive cartridge. This manual does not apply
the PC-L984-785
as a PC-0984-785
replacement.
GM-0984-501
for system Planning and installation
GM-L9&?4-785
Chmter2
installation
Extra Regiswhen using
Refer to
for the 785.
Installation
5
Controller
Orientatifon
Extra Register Model
When used in the Extra Register configuration,There are a number of possible
configurations of the PC- L984-785 FLC memory (see Table 3). The size of the
State RAM is selectable at 32k or 64k words. The user logic, Execution Buffer and
Extended Memory (6X reference) is determined by the size of the RAM cartridge
you install and the selected state RAW.
Hardware
The PC-L984-785
uses the same 80 186 CPU as the 984-785
but has a different
UPI and has an extended RAM cartridile of 256K(-032) or 512K bytes(-048) included, giving a total of 512K or 768K bytes of RAM. Figure 1 illustrates the combination of “plug in” executive and memory cartridges you install.
I?3
Note
When used in the E:ctra Register configuration, an
AS-S908-131
(at minimun- revision 1005) Executive MUST be installed in the S908 remote l/O Processor
The following table shows how this RAM partitions in each configuration:
Table 3
Memory Utilization
64K State
512K RAM 768K RAM
User Logic
words
ExecutionBuffer bytes
Extended Memory words
6
installation
16k
16CIk
72k
32k
320k
0
32K State
512K RAM 768K RAM
32k
320k
96k
46k
480k
24k
GM-L984-785
Chapter 2
Modbus Plus Node
DIP switchfor Modbus Port 1 parameters and baud rate settings
Fi‘gure 1 Location of Removable Executive and Memory Cartridges
Exec ID
The Exec ID for the PC-L984-785
Extra Register is in the range 0850 to 085F
hex.
l?T
GM-L984-785
Note
Chapter 2
One of the memory cartridges MUST be installed.
Installation
7
Controls
and Indicators
Figure 2 illustrates the front panel of this One and one-half slot wide controller.
This figure provides the additional detail related to input power and primary switching that are located under the Modicon standard module handle.
Front Panel Status indicators
POWER OK
Green LED: Generated by the power supply to indicate input power is OK and voltage outputs are OK.
READY
Amber LED: Is on to indicate the controller has passed
power-up diagnostics. The lamp remains on in unconfigured, stopped and run states as long as health status is
OK. Indicator is off when an error condition is detected by
internal diagnostics.
RUN
BATTERY LOW
Green LED: Controller was started and is solving logic.
Red LED: ON when battery needs to be replaced (14 day
holdup from initial indication). User memory is protected for
up to one year by the date coded lithium battery which has
a five year shelf life.
For special applications a time-of-day
clock is provided.
The clock is powered by the battery. The module is shipped
with the battery installed.
MODBUS
PLUS
Green LED: Blinking when communication processor has
communications access.
MODBUS
8
Installation
Green LED: ON when communication processor has unit
address and communications are in process.
GM-L984-785
Chapter 2
AC POWER IN
PLUS
TOR
TOR
MEM-DIP
TOGGLE
Figure 2 View Showing Controls and Indicators
GM-L984-785
Chapter 2
Installation
9
Front Panel Controls
There are two switches directly located on the front panel:
AC POWER
This ON/OFF switch controls the main power
MEMORY PROTECT This key switch can be set to ON and key removed to protect the content of the memory from change. OFF allows
normal program development.
The Detail of figure 1 illustrates the AC input power connections and the DC option
select switch located under the Controller handle. When you have wired your +24
VDC to the controller you can run the controller on the DC only or run on AC with
a power fail DC backup.
DC POWER
Position the toggle switch to ON for DC backup.
Behind the Battery cover and just below the battery there is a toggle switch:
MEM
DIP
This switch enables the configuration of Modbus Port 1 parameters as set, in the DIP switches (as illustrated in
Figure 3 are accessible from the bottom of the Controller)
or reads the port parameters from Memory.
The memory byte allocated to this parameter provides an
operating environment of:
9600 Baud, Even Parity, 1 Stop Bit, RTU
The switch configuration upon shipment has the same default setting as the Memory setting. Because the switch setting is sensed at
power
up
if you
are set to DIP and change
the setting you must power cycle the unit to implement the
new setting. The same is true if you switch from DIP to
MEM. The available Baud rate is listed in Table 4.
10
Installation
GM-L984-785
Chapter 2
SWITCH
FUNCTION
SWITCH NO.
1
i
3
4
5
6
7
DOWN
UP
BAUD SELECT
BAUD SELECT
BAUD SELECT
NO PARITY
ODD PARITY
2 STOP BITS
ASCII (7 BITS)
BAUD SELECT
BAUD SELECT
BAUD SELECT
PARITY
EVEN PARITY
1 STOP BIT
RTU (8 BITS)
Default settings as shown above:
9600 Baud/Even/Parity/l StoplRTU
Figure 3 Modbus Port DIP Switch Orientation and Coding
ET
Note
Although certain production units may contain an 8-position
DIP switch set, only the first seven are used.
Unsupported switch combinations are: 2 stop bits with RTU and parity;
1 stop bit with ASCII and no parity.
Table 4
DIP Switch for Modbus BAUD Rate Settings
Baud
Switch 1
Switch 2
Switch 3
19,200
9600
4800
2400
1200
600
300
150
“P
down
“P
down
“P
down
“P
“P
down
down
“P
“P
down
down
“P
“P
“P
“P
down
down
down
down
GM-L984-785
Chapter 2
“P
down
Installation
11
Figure 4 Modbus Plus Node Address DIP
Modbus Plus Address
These switches are accessible from the top of the unit and are factory set to the
above pattern. Switch 7 and 8 are not used. Switches One through six can be set
to the binary bit pattern 000000 through 111111 which are the equivalent of decimal 0 through 63 respectively. To derive the node address add “1” to the binary.
The default shown in Figure 4 is the binary 0 which is node address 1. To change
to an address of 2, place the LSB switch “down” (000001) etc.
12
Installation
GM-L984-785
Chapter 2
Low Battery
From the time the Low Battery LED comes on, if the unit continues to be powered
ON, the battery must be changed withen 14 days. If the battery is not changed the
PLC will not restart on a power up and data may be lost.
GM-L984-785
ChaDter 2
Installation
13
Chapter 3
PC-L984-785
Specif its
o This Chapter, while providing some typical 984 Series Controller
operation, concentrates on differences encountered due to it’s
specific architecture when used in a Extra Register configuration.
GM-L984-785
Chapter 3
PGL984-785
Specifics
15
984-785
Memory
Physical - Logical Overview
Chapter One described the Physical - Logical relationship between the selection
of Memory cartridges and your memory partition using the configurator. In Figure 5
the distribution of memory in hardware elements is provided.
FFFFF
EXECUTIV
AS-E785-914
51 2tCrbytes
768K bytes
Extended Memory
and .EXE Buffer
AS-M785-048 512K
- 256K bytes
Figure 5 Memory Distribution
Size of RAM
The State RAM size (32 or 64K) is indicated for configuration by the most significant bit of word 174 in the configuration Table. This configuration word is only
checked at power up and on an “exit dim” command. At these times the PLCs internal pointers to User Logic, State RAM , Execution Buffer, and Extended
Memory are set up before the configuration is validated. This implies that all of the
16
PC-L984-785
Specifics
GM-L994-785
Chapter 3
configuration table must be updated when there is a change to this flag, or the illegal configuration and dim awareness is set in the stop word. The table is set from
the panel configuration as in Figure 6 where the “L785” is selected (Modsoft Type
selection displays as 785L) and the partition selections are displayed for your
choice.
tate RAM
User Logic
$Utility
JPi-C
Ops
J-OvrView
Segmnts
Laadabl
F6-F7-FB-OFF-F9-
Ports
vF1-F2-F3-F4
PLC
914
32/32K
MemOi-y
Extended
Memory
Redundant
DCP Drop
ID
OK
N -
48/32
of
16/64
32/64
I/O Type
860
Segments
32
1
ops/Channel
Pairs
Quit
1
Ldules
ASCII
Number
:
of
Messages
Ranges
:
&XXX
EmBaa
-
881536
Number
of
1XXXX
100001
-
100512
Simple
ASCII
Output
3xxxx
300001
-
300048
Simple
ASCII
Input
4xxxx
400001
-
401872
None
Specials
for
SFC
Message
SKIP
Oxxxx
Ext
:
PLC Type
Exec Pack
4xxxx
Cfg
for
SFC
None
Figure 6 Modsoft Configuration
Battery
Timer
Initialization
Area
0
Size
ASCII
0
Ports
0
:
Functions
Coil
Register
Y
0_---4-____
for Extra Register L785
Word 100 of the configuration table gives the state RAM size in the number of 1 k
segments which can be 64, or 32.
Word 99 of the configuration table gives the size of User Logic in the number of 4k
sections. Valid numbers are 4, 8 or 12, for 16k, 32k or 48k of User Logic. User
Logic size depends on the selected size of State RAM and the extended RAM cartridge installed in the PLC
Warning Re-partitioning memory clears user logic and .exe DX
Loadable buffer
GM-L984-785
Chapter 3
PC-L984-785 Specifics
17
A
Caution When you initially configure your State RAM size, a
power cycle is required to guarantee all option modules will get
proper memory partition information. If you subsequently change
to the other size you must repeat the power cycle to implement
the change.
1
You must select the partition you want and write the configuration to the PLC before loading any .exe buffer loadables. Internal software checks are made against
the history of the state selection in config. word 174 and does not allow you to load
the .exe loadable unless there is a match. You may see the error message:
ERROR: EXEC BUF LOAD NOT ALLOWED, MEM REPARTITIONING
IS
PENDING,
Configuration Partition
Depending of your Memory Cartridge and choice of configurations the memory
partitions that result are:
Table 5
Memory Partitions
M780-032
512K
Function
M780-048
768K
Bytes
User Logic
Page 0
16K
32K
32K
48K (Bytes - 3 per instructionword)
State RAM
64K
32K
64K
32K (Words)
X Memory
6X Reg
72K
0
96K
24K (Words)
Execution
Buffer .EXE
160K
320K
320K
480K (Bytes)
Page F
w
18
Note
PC-L984-785
1)
2)
The .EXE buffer is always IO times the user logic size.
Approximately 34 KB of M780-032
internal controller overhead.
Specifics
or 048 is used for
GM-L984-785
Chapter3
Number of Discretes and Registers
The maximum number of each register type increases over current limits in the existing 984-8 products. The 785 Extra Register limits for each configuration are
shown in Table 6.
Table 6
Maximum Number of Discrete 110Points and Registers l
We
output
or
input
Input Register
Output HoldingRegister**
64k
32k State RAM
ox
65504 65504
1x
3x
4X
64992 32224
57766 28640
* Assumes minimums assigned to the balance of the other types
** This number is reduced due to allotted history bits.
ET
Note
Only the 1st 16383 (16K) of each type may be used for, I/O
through the Traffic Cop, and as control in the segment scheduler. The
remainder is for internal use only.
The maximum of each type expressed in Table 6 fit into the totalconfigured
memory space according to the following formula:
A+B+C+D+E+F
<=
65024 for 64 K State RAM or
32256 for 32K State RAM
(and the combined mix of configured #OX + #IX
< = 65536)
Where:
A = Number of (OX / 16) * 3 to include History and Disable bits
B = Number of (1 X / 16) * 3 to include History and Disable bits
C = 0 if ready to start 3X on a 16 word boundary otherwise add the required
difference.
GM-L984-785
Chaoter 3
PC-L984-785
Specifics
19
D = Number of 3X
E = 0 if ready to start 4X on a 16 word boundary otherwise add the required
difference.
F = Number of 4X + (2
l
( ( #4X +I 5) I 16)) to include Up I Down counter
history.
Changes in the Modsoft and DIBM panel software (Configurator, Traffic Cop, and
Programmer) have been made to display register addresses that can now be up to
6 digits long. Figure 7 illustrates the Modsoft configuration assignment of Type address as 6 digit entries (including Specials) based in the 785L selection.
The State RAM soft key option selection and 6 digit references are also illustrated.
TCop
Itliity
JPLC Ops LOwView
Ports
Segmnte Loadabl
:l-F2-F3-F4-F5-F
6-----F7-F8-OFF-F9CONFIGURATIONOVERVIEW
1 Size of Full Logic Area
PLC :
of TCop Words
PLC Type
904 7651.
Exec Pack
914
I/O Type
Memory
32/32K
of Segments
Extended Memory
0K
ops/Channel Pairs
Redundant
N
dules
OCP Drop ID. ASCII :
Number of Messages
Message Area Size
Number of ASCII Ports
100001 - 100512
Simple ASCII Output
300001 - 300040
Simple ASCII Input
Oxxxx for
SFC
Cfg Ext
Quit
31740
00015
600
32
1
1
0
0
0
Specials
:
SKIP Functions
Battery Coil
Timer Register
None
I
Time of Day Clock
4----
Figure 7 Six Place Register Address in 984-78511 Extra Register
20
PC-L984-785 Specifics
GM-L984-785Chapier3
904 CONFIG.(24-BIT
29494
TOTAL LOGIC:
000000
TOTAL XMEM:
0032
SEGMENTS:
DX MODULES: -001
000
DCP DROP ID:
AVAIL PAGE 0:
29494
TOTAL MESSAGEWORDS: 00200
NUMBEROF MESSAGES: 00005
04
# OF RS232 PORTS:
000000
TIME OF DAY CLOCK:
COILS:
INPUT REGS:
PORT 1:
PORT 2:
PORT 3:
PC TYPE : 984-785-XR
LOGIC WORD)
MODE
__-RTU
RTU
RTU
00544
00640
PARITY
__---EVEN
EVEN
EVEN
I
OOOOOE
BATTERY COIL:
00000EI
TIMER REG:
# OF IO DROPS:
32
TOTAL T.C. WORDS:01364
DISCRETE INPUTS:
HOLDING REGS:
STOP/DATA
--____-_1
1
1
BAUD RATE
------___
09600
09600
09600
EXEC ID = 850
00032
20001
DEVICE ADDR
_----_____001
001
001
DELAY
----01
01
01
ijET:
UNIT:001 SEG:00 AVAIL:00000 USED:00000 DATE:09
F6
F4
F5
F3
F2
Fl
TIME OF
DCP
TIMER
NO SKIPS BATTERY
1 SKIPS JCOIL BXXXXREG4XXXX DAY CLOCK DROP ID
c
I
Figure 8 P190 Emulator (DIBM) State Ram Configuration
The P190 Emulator screen is reached using the Configuration menu SPECIALS
key.
GM-L984-785
Chapter 3
PC-L984-785
Specifics
21
Chapter
4
The .EXE Loadable
0 This Chapter instructs you in how to implement the .exe Loadable Function. The .exe Loadable DX is implemented in a standard DOS file architecture but cannot be executed on a DOS
PC.
GM-L984-785
Chapter 4
The .EXE Loadable
23
DX Loadable
Format
The 785L handles two types of loadable DX, one is standard upgraded loadable
used on all 984-8 controllers, the other is .exe loadable which is a new feature.
The standard loadable is stored in memory page 0, but as the loadable consumes
memory it subtracts from available User Logic restricting user programming. The
.exe loadable is designed to eliminate this program limitation, by arranging the
PC-L984-785
memory to make pages 1 - 8 available to store the .exe loadable
code.
Though standard loadable allows user to create a function written in C and Intel
assembly languages, it is not efficient to use due to memory limitation. The approach taken for .exe loadables removes this limitation, and opens up the possible
space for loadable DX to a maximum of 480K bytes.
Loading The .exe file
In a Modsoft environment you can load a .exe into the panel using the Loadabl
function from the Configuration screen. This selection (Figure 9) results in the display of the loadable request prompt and DX functional menu selectable functions
seen in Figure IO.
1Utllity
LPI-C Ops lOwView
Ports
TCop
Segmnts Loadabl
-FlCZ-F3-F4-FS-F-F7-F8-OFF-F9CONFIGURATIONOVERVIEW
Size of Full Logic Area
Number of TCop Words
PLC :
984 78%
PL,C Type
914
I/O
:
Exec Pack
I/O Type
Number of Segments
Memory
32/32K
0K
I/O Drops/Channel Pairs
Extended Memory
N
I/O Modules
Redundant
DCP Drop ID
ASCII
:
Number of Messages
Cfg Ext
Quit
31740
00015
800
32
1
1
0
Figure 9 Modsoft Configuration Loadabl Select
24
The .EXE Loadable
GM-L984-785Chapler4
JUtility
LPLC
-Fl-FZ-F+F4-FS-F6-
Ops
LEdit
lDir
Quit
F7-FS-OFF-F9-
DX Loadable
Configuration
-1
Name
-Press
Size
Rev
'Enter'
or
'?'
to
Opcode
view
current
loadable
selection
list
Figure 10 Loadable screen
You can display existing loadables and enter the data you requre on the display
prompt line. If you want to add a loadable from an external file use the Dir function
which provides a pulldown selection for load or delete operations.
Name
Rev
Size
Opcode
/I
Figure 11 Loadable Dir selection
When you select the Load option a display prompt for Filename: is posted to which
you respond with the Drive, Path and File name with proper .extension.
GM-L984-785
Chapter 4
The .EXE Loadable
25
lutllity
$PLC Ops
.Fl-F2-F3-F4-F5-F6-F7-
OX Loadable
Name
RW
Filename:
1Edlt
lDir
Quit
Configuration
Size
drive
Opcode
path\fIlename.exe
Figure 12 Setting the File Path for DX Load
If your programming panel is the IBM-PC running Modicon PI 90 Emulator (DIBM)
software you start the DX load process from the main configuration menu by
pressing the <F5> or MODULES key. The display appears as Figure 13 offering
you a choice of loading or deleting modules.
26
The .EXE Loadable
GM-L984-785Chapter4
NET:00000
SIZE
UNIT:001 SEG:E0 AVAIL:00000 USED:00000 DATE:090591
F6
F4
F3
F2
SPECIALS
ASCII
MODBUS
PORTS
CONTROLLERMUST BE STOPPED TO LOAD/DELETE PROGRAM
NET:OBEG0 UNIT:001 SEG:aE AVAIL:00086 USED:00000 DATE:090591
F6
F4
F5
F2
F3
Fl
DELETE
LOAD
t.4ODULES MODULES
AR:000000
F7
FB
AR:000000
F7
FB
PREVIOUS
MENU
I
Figure 13 DIBM 785L Extra Register Load DX Module Screen
When Load Modules (Fl) is selected the display illustrated in Figure 14 appears to
prompt you for a disk path and file name entry. This figure provides an example of
a “typical” path entry.
GM-L984-785
Chapter 4
The .EXE Loadable
27
INSERT 984 MODULES PROGRAMDISK IF NECESSARY
ENTER DISK PATH AND FILE NAME
C:\MODICON\PROGRAMS\FILE.EXE
NET:OEBBB UNIT:@@1 SEG:88 AVAIL:BEE’JB lJSED:BBBBB DATE:698591
F6
F4
F3
F5
Fl
F2
AR:EBBBEB
FB
F7
CANCEI
PROCEED
Figure 14 .exe File Path Entry Screen
When you proceed with the load the 785L Loadables Directory Screen is displayed
IBM MODULES PROGRAMDISK
PROGRAMDIRECTORY:
DATE: XX?XX?XXXX
Filename
ENTER PROGRAMNAME: _______
NET:BBBBB UNIT:001
Fl
F2
LOAD
PROGRAM
SEG:OB AVAIL:OBBBB USED:BB@% DATE:096591
F4
F6
F3
FS
AR:BEE@3B
F7
F8
PREVIOUI
MENU-
Figure 15 .exe Loadable Directory Screen
28
The .EXE Loadable
GM-L984-785
Chapter 4
There is only one filename in the directory of the .exe disk. The date at the top of
the screen comes from the DOS directory date on the file being loaded. The program name is put in for you.
Delete a .exe File
If you had chosen the “delete” action from the load/delete screen the softkey menu
appears as in:
Figure 16 785L Extra Register Delete DX Module Softkeys
When using the Modsoft Panel you can delete the DX by deleting the assigned
Opcode and downloading the resulting configuration.
GML984-785
Chaoter 4
The .EXE Loadable
29
Chapter
5
Commands
o This Chapter describes both Port programmingfunctionsthat
are available in the PC-L984-785 Controller,when used in an
Extra register configuration
GML984-785
Chapter 5
Commands
31
Peripheral
Port Commands
Changes to Current Commands
The following defines the Peripheral Port Command Programming Subfunctions
that now have access to the execution buffer, pages 1 - 8. Each page is 64k bytes
long and is accessed by these commands as 32k words. These commands also
have full access to Page F, including the Header Control Block (HCB). When
reading the Version Table (address FF20 - FF3F) from Page F, including the
number of built in DX’s (address FF21), the data is read from the Executive
PROM.
Read Memory Contiguous
03
Write Memory Contiguous
Write Memory under Mask
04
05
Read Memory Scattered
2E
In Read and Write Memory Contiguous (03, 04) commands, the count of words to
read or write has been increased from 16 to 123 locations.
In the Read and Write Nodes (06,07)
commands, the count of nodes to read or
write has been increased from 11 to 81.
(See PI-MBUS-300
for Modbus programming commands).
New Modcom function
A new major Modbus Function Code (#I 26) has been developed. The subfunctions are:
41 Hex = Read scattered groups in Memory command
42 Hex = Write scattered groups in .Memory command
43 Hex = Move Memory Command
45 Hex = Fill Memory
(See PI-MBUS-300
32
Commands
for Modbus programming commands).
GM-L984-785
Chapter 5
Standard
Modbus
Functions
*
Mask Write 4X Register
Function (22) modifies the specified 4X register using an AND’
‘
mask and an OR’
‘
mask. The masked write function can be used to set and/or clear individual bits
within an 4X register.
The function can alter the contents of any 4X register at any time.
COMMAND:
Device Address
16 hex
data-hi
data-low
AND Mask-hi
AND Mask-low
OR Mask-hi
OR Mask-low
ErrorCheck
LRC
RESPONSE: Echo the command block after modifying the register
Figure 17 Modbus Mask Write 4x Register Command
Read and Write 4X Registers
The Function (23) performs a read and a write operation in a single Modbus transaction. The function can alter the contents of any group of 4X registers, and then
return the values of any other group of 4X registers at any time.
* These new functions are documented in PI-MBUS-300
GM-L984-785
Chapter 5
Commands
33
COMMAND:
RESPONSE:
Figure 18 Read and Write 4X Command
Read FIFO Queue
This function (24) is used to read the contents of a FIFO, of up to 31 4X queue
registers, plus the queue total, or up to 32 registers in total. The Read Queue
function will only return the queue count and the number of entries
an
34
error
in
the
queue,
or
(03 (illegal data value)) if the queue count is greater than 31.
Commands
GM-L984-785
Chapter 5
Error Check
Figure 19 Read FIFO Queue Command
GM-L984-785
Chaoter 5
Commands
35
Modified
DX Functions
XMWT and XMRD Function Blocks
The Extended Memory function blocks XMWT and XMRD function as described in
the 984 Programmable Controller systems manual GM-0984-SYS
with two ex-
ceptions. The functions are available from the panel DX selection when 785L is
configured.
1). The bottom input is ignored because the 984-78511 can not detect memory
errors as it reads or writes to the extended memory.
2). The status word bits 14 and 15 are not used because the memory does not
have parity and the extended memory is not separated from the remainder of the
Controller memory.
Figure 20 is an example of the panel implementation of a XMWT Block. In the figure the top node refers to the address of the first reference to get for transfer to the
6X area. The middle node and Reference screen illustrates the 6 register control
block associated with Extended Memory transfers.
Wtility
1PLC
Ops
-Fl-FZ-F3
Seg.
lElement
lcommand
-F4-
1Network
1Ref
Ladder
l2oom
r&lit
+F7-F8-OFF-F9-
Diagram
l#l/l
Y
Reference
Data
400100
SOURCE-ADD
0 Dee
400105
NMBR_DONE
400101
400102
STATUS
FILE_NUMER
0 Dee
1 Dee
400106
MAX_REG
400103
START_GX
400104
COUNT
Format
:Decimal
60000
Dee
9999
Dee
Read
from
File
Range
:
0 Dee
9999
Dee
1
Figure 20 Extended Memory DX at Panel Level
36
Commands
GM-L984-785
Chapter5
CKSM Function
The Checksum function block has a new opcode of ZD’
‘
in the 785L instead of
BF’
‘ . This change allows the 785L to have both the MSTR and CKSM function
blocks installed at the same time.
Standard DX Loadable
In the DX loadable header the software
‘
revision’ byte (OE hex) must contain a value of OCO hex or greater if the loadable is to run with 64k of state RAM. With 64k
state RAM the addresses of the 4x registers in the top and/or middle nodes may
be in the 2nd 32k of state RAM. Addresses passed to the loadable are normalized.
To insure proper use of all 4x registers, .the dx loadable code should always use
the complete address passed to the loadable on the stack in C’
‘ compatible format.
Extended Memory Read and Write Functions
The extended memory Modbus read and write functions are described in the
“Modbus Protocol Reference Guide” as Read/Write General Reference function
codes 20 and 21. The only difference in the PC-L984-785
Extra Register implementation is the size-of the extended memory, which changes the number of files
and the number of registers.
Table 7
Extended Memory Allocation
TYPE
512k byte RAM
State RAM
Extended Memory
Number of Files
Registersin last File
64k words
72k
”
8
3728
GM-L984-785
Chat&r
5
I
32k words 1
0
0
0
I
I
768k byte RAM
64k words
96k
”
10
8304
32k words
24k ”
3
4576
Commands
37
Appendix
A
Stopped Error Codes
o The Stopped error code displayed on you programming panel is
defined in this Appendix.
GM-L984-785
Stopped Error Codes
39
Stopped
Error Codes
The following lists stopped error codes for your 984 controller
Hex code
7FFF
Controller unhealthy
8000
4000
Controller stopped
Bad I/O traffic cop
2000
Controller in dim awareness
1000
Bad port intervention
0800
Bad segment scheduler
0400
Son did not start segment
Bad power-down checksum
0200
0080
0040
0020
40
Description
Watchdog expired
Real time clock failed
0010
Bad coil used table
Remote 1.0 option failed
0008
0004
Illegal node type user
User logic checksum error
0002
Discretes disable error
0001
Bad configuration
Stopped Error Codes
GM-L984-785
Index
Symbols
.exe Loadable, 24
Numbers
6X Files, 3
785L Partitioning, 17
C
Configuration, 18
Controller Indicators, 8
D
DC Operation, IO
Delete DX, 29
DX ID Change, 37
Loadable DX, 2, 24
Loadable Revision ID, 3
M
Memory
Memory
Modcom
Modsoft,
Hardware, 16
Partition, 6, 18
Functions, 32
24
P
PI 90 Emulator, 26
Page F, 2
Panel Software, 20
R
Register Size, 19
E
Execution Buffer, 32
Executive ID, 7
Extended Memory Blocks, 36
S
State RAM, 2, 6, 16, 17
U
L
L984-785
Configurations, 6
User Controls, IO
User Logic, 2, 17
Index
41
Modicon, Inc., Industrial Automation Systems
One High Street, North Andover, MA 011345
(508) 794-0800
24 Hour Support Center l-800-468-5342
,, c,. c,mn.In
__._.~
^
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