Download Series 90-70, Programmable Coprocessor Module

Coprocessor Modules
3
GFK-0164G
August 1997
Programmable Coprocessor Module
Table 1. Port 1 or 2 - RS-232
Programming and Configuration
An IC647 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 parameters, to define the interface to the PLC CPU, to select
task functions and to program MegaBasic applications. The PCM parameters can also be configured
using MS-DOSr or Windowsr programming software. Consult reference 3 for details of operation.
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Programmer
IC697CBL705
RS-232
(DEFAULT PORT)
Î
Î
GND
3PL
4PL
PIN
PIN
2
3
4
5
8
20
7
3
2
5
20
8
1
7
IC647 AND
IBM PS/2
25-PIN CONNECTOR
1
2
3
4
5
7
8
20
FUNCTION
Shield
Transmitted Data
Received Data
Request To Send
Clear To Send
Signal Ground
Data Carrier Detect
Data Terminal Ready
RXD
TXD
CTS
DTR
SHLD
GND
PCM
25-PIN
CONNECTOR
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.
SIGNAL
NAME
TD
RD
RTS
CTS
0V
DCD
DTR
I/O
Output
Input
Output
Input
Input
Output
Table 2. Port 1 or 2 - RS-422/RS-485
a43735
PCM
PCM
PROGRAMMING S/W
TXD
RXD
RTS
CTS
PIN
PIN
9
10
11
12
13
21
22
23
24
25
FUNCTION
Send Data (A)
Request to Send (A)
Clear to Send (A)
Termination for pin 13
Receive Data (A)
Send Data (B)
Request to Send (B)
Clear to Send (B)
Termination for pin 23
Receive Data (B)
SIGNAL
NAME
I/O
SD (A)
RTS (A)
CTS (A)
RD (A)
SD (B)
RST (B)
CTS (B)
RD (B)
Output
Output
Input
Input
Output
Output
Input
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.
Port 1 (3PL) and Port 2 (4PL)
Controls
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 specification 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.
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).