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  9. IBM MegaBasic IC697PCM711 User manual

IBM MegaBasic IC697PCM711 User manual

Programmable Coprocessor Module
IC697PCM711
Coprocessor Modules
GFK-0164G
August 1997
1
12
CoprocessorModules
Programmable Coprocessor Module (IC697PCM711)
datasheet GFK-0164G
Features
•Single slot Coprocessor
•Dual Tasking
•MegaBasic
t
•CCM2 Protocol
•12 Mhz, 80C186 microprocessor
•90% of an IBM
r
AT performance
•Up to 96 Kbytes battery-backed CMOS logic and
data memory on board
•Supports up to 512 Kbytes optional expansion
memory
•Programmed by IC647, IC640 or IBM-compatible
Personal Computer
•TwoRS-422/RS-485 orRS-232 serialports
•High performance access to PLC memory
•Real time calendar clock synchronized to PLC
•Reset pushbutton
•Three Status LEDs
•Soft Configuration (No dip switches or jumpers)
with MS-DOS
r
or Windows
r
based programming
software configuration function
•Simultaneous communications on both ports at up
to 9.6 Kbaud, or up to 19.2 Kbaud individually.
Functions
The Programmable Coprocessor Module (PCM) is a
Coprocessor to the PLC CPU. It can be programmed
to perform operator interface, real time computations,
data storage, data acquisition and data communica-
tions functions. It communicates with the PLC CPU
over the backplane and can access user and system
data using extensions to the powerful MegaBasic lan-
guage. No application program support is required in
the PLC CPU.
Many PCMs can be supported in a single IC697 PLC
system and each can accommodate an optional ex-
pansion memory up to 512 Kbytes.
MODULE FUNCTION
PROGRAMMABLE
COPROCESSOR,
COMMUNICATIONS
a44716
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PCM 711
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MODULE OK
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USER 1
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USER 2
ON = OK, ACTIVE
OR USER
MODULE
IC697PCM711
LABEL
44A726758–203
BATTERY
CONNECTIONS
OPTIONAL MEMORY
USE IC697MEM71
PORT 2
RS–232 OR
RS–422/485
COMPATIBLE
PORT 1
RS–232 OR
RS–422/485
COMPATIBLE
INSTALL NEW
BATTERY BEFORE
UNPLUGGING OLD
BATTERY. USE
IC697ACC701
OK
USER 1
USER 2
PCM 711
COPROCESSOR
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PUSH TO RESTART
APPLICATION
PUSH AND HOLD TO
STOP AND RESET
Dualtasking allows running a MegaBasic program at
the same time the PCM is used as a communications
interface. Operation of the module may be initialized
by a pushbutton or by an attached PCM development
system. The status of the PCM is indicated by three
green LEDs on the front of the module.
t
MegaBasic is a trademark of Christopher Cochran;
r
IBM is a registered trademark of International Business Machines Corporation.
r
MS-DOS and Windows are registered trademarks of Microsoft Corporation.
Programmable Coprocessor Module
GFK-0164G
Coprocessor Modules
2
August 1997
Installation
•Installation should not be attempted without refer-
ring to the applicable ProgrammableController
InstallationManual (see reference 5).
•Make sure rack power is off.
•Install expansion memory if required.
•Connect the battery to either of the battery con-
nectors on the module. (See figure 2)
•Install in the rack. (See figure 1)
•Turn on power.
The module should power up and blink the top LED.
When the diagnostics have completed successfully the
top LED stays on.
BUS CONTROLLER, BEM731/734
a42786g
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IC66*
I/O BLOCK
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RACK 1
RACK 0
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SC
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U
B
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IC66* I/O BUS (7500 FEET (2285 METERS) MAXIMUM)
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RACK 7
B
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ONE
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ONE
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IC66* I/O BUS (7500 FEET (2285 METERS) MAXIMUM)
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P
S
I/O TERMINATOR
(LAST RACK)
TOTAL LENGTH OF ALL INTERCONNECTING
CABLES FROM BTM TO LAST BRM IS 50 FEET
(15 METERS) MAXIMUM. ALL RACKS MUST BE
AT SAME GROUND POTENTIAL
(8 RACKS MAXIMUM).
NOTE
LEGEND CPU - SELECTED CPU MODEL
BRM - BUS RECEIVER MODULE, BEM711
BTM - BUS TRANSMITTER MODULE, BEM713
PCM - PROGRAMMABLE COPROCESSOR MODULE, PCM711
PS - POWER SUPPLY, PWR710/711/724/748
PARALLEL
or
or
N
B
C
N
B
C
GBC/NBC -
Figure 1. Typical PLC System Configuration (PCM
Shown in Rack 1)
Expansion Memory
The PCM can operate with or without an expansion
memory daughter board. The base memory on the
PCM board has up to 95 Kbytes user memory. The ex-
pansion memory daughter board permits expansion of
program/data memory by 64, 128, 256 or 512 Kbytes.
The battery which supports this memory is located on
the base board housing as shown in figure 2.
a42759
CURRENTLY
INSTALLED
BATTERY
CONNECTOR
PCM 711
EXPANSION
MEMORY
BOARD
IC697MEM713
IC697MEM715
IC697MEM717
IC697MEM719
OPEN
REPLACEMENT
BATTERY
CONNECTOR
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PCM 711
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MODULE OK
Î
USER 1
Î
USER 2
ON = OK, ACTIVE
OR USER
MODULE
IC697PCM711
LABEL
44A726758–203
MODULE FUNCTION
PROGRAMMABLE
COPROCESSOR,
COMMUNICATIONS
PUSH TO RESTART
APPLICATION.
PUSH AND HOLD TO
STOP AND RESET.
BATTERY
CONNECTIONS
OPTIONAL MEMORY
USE IC697MEM71
PORT 2
RS–232 OR
RS–422/485
COMPATIBLE
PORT 1
RS–232 OR
RS–422/485
COMPATIBLE
INSTALL NEW
BATTERY BEFORE
UNPLUGGING OLD
BATTERY. USE
IC697ACC701
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Figure 2. Programmable Coprocessor Module - User
Details
3
Programmable Coprocessor Module GFK-0164G
Coprocessor Modules
August 1997
Programming and Configuration
AnIC647 or IC640 computer, or IBM-compatible PC,
XT, or AT computer with PCM Development Software
installed is connected to the top port of the PCM. The
default setting is 19,200 bps. The PCM Development
Software is used to configure the serial port parame-
ters, to define the interface to the PLC CPU, to select
task functions and to program MegaBasic applica-
tions. The PCM parameters can also be configured
using MS-DOS
r
or Windows
r
programming soft-
ware. Consult reference 3 for details of operation.
2
3
4
5
8
20
7
TXD
RXD
RTS
CTS
GND
PIN
RXD
TXD
CTS
DTR
SHLD
GND
3
2
5
20
8
1
7
IC647 AND
IBM PS/2
25-PIN CONNECTOR
PCM
25-PIN
CONNECTOR
PIN
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a43735
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3PL
4PL
PCM
IC697CBL705
RS-232
(DEFAULT PORT)
PCM
PROGRAMMING S/W
ÎÎ
Programmer
Figure 3. PCM Development System Connection to PCM
Serial Ports
Both ports are RS-232 and RS-422/RS-485 compatible.
Both ports acting simultaneously can each support up
to 9.6 Kbaud full duplex data communications, or they
can support up to 19.2 Kbaud individually.
Port 1 (3PL) and Port 2 (4PL)
Connectors 3PL and 4PL contain signals for both RS-232
and RS-422/RS-485 types of communication circuits. The
pin-out for the RS-232 signals are per the RS-232 specifi-
cation with an exception that pins not normally used for
RS-232 are used for RS-422/RS-485 signals. Details are
shown in tables 1 and 2.
Table 1. Port 1 or 2 - RS-232
PIN FUNCTION SIGNAL
NAME I/O
1Shield - -
2TransmittedData TD Output
3ReceivedData RD Input
4RequestTo Send RTS Output
5ClearTo Send CTS Input
7SignalGround 0V -
8DataCarrier Detect DCD Input
20 Data TerminalReady DTR Output
Table 2. Port 1 or 2 - RS-422/RS-485
PIN FUNCTION SIGNAL
NAME I/O
9SendData (A) SD(A) Output
10 Request to Send (A) RTS(A) Output
11 Clear to Send (A) CTS(A) Input
12 Termination for pin 13 - -
13 ReceiveData(A) RD(A) Input
21 Send Data (B) SD (B) Output
22 Request to Send (B) RST (B) Output
23 Clear to Send (B) CTS(B) Input
24 Termination for pin 23 - -
25 ReceiveData (B) RD (B) Input
Configuration
There are no user DIP switches or jumpers on this
board for configuration. However, the board must be
configured before operation using PCM Development
Software (See reference 3).
Status Indication
Three Status LEDs are available as shown in Figure 2.
The top LED indicates the condition of the module, the
bottom two LEDs may be assigned to a configured
function.
Controls
One pushbutton is provided. Push and hold for less
than 5 seconds will restart an application. Push and
hold for more than 5 seconds and the module factory
default configuration will be installed (this action will
not clear memory but will permit communication with
the programmer using factory default settings).
Programmable Coprocessor Module
GFK-0164G
Coprocessor Modules
4
August 1997
Batteries
Alithium battery (IC697ACC701) is installed as shown
in figure 2. This battery maintains user memory when
power is removed. Be sure to install the new battery
before removing the old battery.
If during power-up diagnostics a low battery is detected
the Module OK LED (top) will not stay on. Specific in-
dication of a low battery state is detailed in the PCM
Support Software User’s Manual.
Table 3. References
Reference Title
1ProgramingSoftwareUser’sManual
2ProgrammableControllerReferenceManual
3PCMSupportSoftwareUser’sManual
4MegaBasicProgrammingLanguageReferenceManual
5ProgrammableControllerInstallationManual
Table 4. Specifications for IC697PCM711
[
Battery
Shelflife 10 years at 20°C (68°F)
Memoryretention 6 months nominal without applied power.
Current required from 5V bus 1.0 amp
SerialPorts RS-232/RS-422/RS-485 compatible
VME System designed to support the VME standard C.1
[
Referto GFK-0867B,orlaterforproductstandardsandgeneralspecifications. If the PLC installation must comply with
supported standards, such as FCC or CE Directives, please refer to the Installation Requirements for Conformance to Stan-
dards, shipped with the PLC programming software, for additional guidelines.
Table 5. Ordering Information
Description Catalog Number
PCM, 12 Mhz, 20 Kbyte, Expandable IC697PCM711
64 Kbyte CMOS Expansion Memory IC697MEM713
128 Kbyte CMOS Expansion Memory IC697MEM715
256 Kbyte CMOS Expansion Memory IC697MEM717
512 Kbyte CMOS Expansion Memory IC697MEM719
LithiumBattery IC697ACC701
Note: ForConformalCoat option, or Low TemperatureTestingoption pleaseconsult the
factoryforpriceandavailability.

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