GE 90-30 PLC Series Installation And Hardware Manual page 249

10
WORKMASTER II
RS-232
PORT
25- PIN
MALE
WHEN WIRING RS-422 /485 MULTIDROP CABLES REFLECTIONS ON THE
TRANSMISSION LINE CAN BE REDUCED BY CONFIGURING THE CABLE IN A
DAISY CHAIN FASHION AS SHOWN BELOW.
MASTER
ALSO IT IS RECOMMENDED TO MAKE ANY NECESSARY CONNECTIONS
INSIDE THE CABLE CONNECTOR TO BE MOUNTED ON THE PLC. IT IS
NOT RECOMMENDED TO USE TERMINAL STRIPS TO OTHER TYPES OF
CONNECTORS ALONG THE LENGTH OF THE TRANSMISSION LINE.
*
TERMINATION RESISTANCE FOR THE RECEIVE DATA (RD) SIGNAL NEEDS TO BE CONNECTED ONLY ON UNITS AT THE END OF THE LINES. THIS TERMINATION IS MADE
ON THE SERIES 90 PLC PRODUCTS BY CONNECTING A JUMPER BETWEEN PIN 9 AND PIN 10 INSIDE THE 15-PIN D-SHELL WITH THE FOLLOWING EXCEPTION. FOR SERIES
90-70 PLCs, CATALOG NUMBERS IC697CPU731 AND IC697CPU771, THE TERMINATION FOR RD AT THE PLC IS IMPLEMENTED BY A JUMPER BETWEEN PIN 9 AND PIN 11.
GROUND POTENTIAL: MULTIPLE UNITS, NOT CONNECTED TO THE SAME POWER SOURCE, MUST HAVE COMMON GROUND POTENTIALS OR GROUND ISOLATION FOR PROPER
OPERATION OF THIS SYSTEM.
Figure 10-3. Example of Multidrop Configuration with Converter
The following figure is an example of the wiring configuration required when a Work Station
Interface board is installed in the computer. The 15-pin serial port connector for the 90-30 PLC is
on the power supply; the 37-pin serial port connector for Workmaster II and Workmaster
computers is on the Work Station Interface board in the programming computer. The cable type
for these connections should be 24 AWG (.22 mm
construction is recommended for short lengths.
10-10 Series 90-30 PLC Installation and Hardware Manual – August 2002
IC690CBL705 OR EQUIVALENT RS-232/RS-422
RS-232 SHIELDED PAIRS CONVERTER
(IC690ACC900)
PIN
PIN
TD 2 3 RD
RD 3 2 TD
RTS 4 5 CTS
CTS 5 20 DTR
DCD 8 8 DCD
DTR 20 7 GND
GND 7 1 SHLD
25- PIN 25- PIN 25-PIN
FEMALE MALE FEMALE FEMALE
RS-232
PORT
NOTE
CONVERTER SLAVE STATION LAST STATION
RS-422
MAKE CONNECTIONS
INSIDE D-CONNECTORS
PIN
DCD ( A ) 2
DCD ( B ) 3
RD ( A' ) 10
RD ( B' ) 11
SD ( A ) 12
SD ( B ) 13
RT 9
CTS ( A' ) 15
CTS ( B' ) 8
RTS ( A ) 6
RTS ( B ) 14
+5V 5
0V 7
SHLD 1
15-PIN 15- PIN
MALE
RS-422
PORT
5V
POWER
SOURCE
FOR
CONVERTER
0V
PLC 15-PIN CONNECTOR
SERIES 90-30 LOCATED
ON POWER SUPPLY
SERIES 90-70 LOCATED
ON THE CPU BOARD
TO OTHER PLCs
2
), 30V computer grade. Extra flexible
SLAVE
STATION
PIN
2 SD ( A )
3 SD ( B )
12 RD ( A' )
SERIES
13 RD ( B' )
90-70
10 RD
CPU
11 RTS ( A )
RS-422
9 RTS ( B )
PORT
* 6 CTS ( A' )
14 CTS ( B' )
15 +5V
8 0V
5 SHLD
7
1
15- PIN 15- PIN
MALE FEMALE
LAST
STATION
PIN
2 SD ( A )
3 SD ( B )
12 RD ( A' )
SERIES
13 RD ( B' )
90-30
10 RD
PS
11 RTS ( A )
RS-422
9 RTS ( B )
PORT
* 6 CTS ( A' )
14 CTS ( B' )
15 +5V
8 0V
5 SHLD
7
1
15- PIN 15- PIN
MALE FEMALE
GFK-0356Q