Rockwell Automation 1769-L32C_L35CR CompactLogix Controller Installation Instructions User Manual
Page 23
1769-L32C, 1769-L35CR CompactLogix Controller 23
Publication
1769-IN070C-EN-P - May 2008
Connect a Programming Terminal to the Controller Via RS-232 Connections
Use an RS-232 cable to connect your CompactLogix controller to your
programming terminal. You can use either of the following RS-232 cables:
• 1747-CP3
• 1756-CP3
The figure shows the RS-232 cable connections. The 1747-CP3 or 1756-CP3
cable must be shielded and tied to the connector housing.
WARNING
If you connect or disconnect the serial cable with power applied to this module
or the serial device on the other end of the cable, an electrical arc can occur.
This could cause an explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
Item
Description
1
9-pin, male D-shell straight cable end
2
9-pin, female D-shell right-angle cable end
Shield
GND REF
+24V DC
PTTx_H
PTTx_L
PTRx_L
PTRx_H
+24V DC
GND REF
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
Shield
GND REF
+24V DC
PTRx_H
PTRx_L
PTTx_L
PTTx_H
+24V DC
GND REF
3.05 m
(10 ft)
This cable is not a straightthrough cable.
1
2
1
2
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