Selecting appropriate cables, 1ć18, Serial cables – Rockwell Automation 1785-L20C_L40C, D17856.5.14 ControlNet PLC-5 Programmable Controllers User Manual User Manual
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Chapter 1
Installing Your ControlNet PLCĆ5 Processor
1-18
This section lists information about:
serial
cables
DH+ programming cables
remote I/O cables
ControlNet
cables
For more information about cables, see the Enhanced and Ethernet PLC-5
Programmable Controllers User Manual, publication 1785-6.5.12.
Serial Cables
You can make your own serial cables or purchase them from
Allen-Bradley Company, Inc.
The side label of the processor shows the following table, which
lists Channel 0 (serial port) pin assignments.
Pin
RSĆ232C
RSĆ422A
RSĆ423
Pin
RSĆ232C
RSĆ422A
RSĆ423
1
C.GND
C.GND
C.GND
14
NOT USED
TXD.OUT
+
SEND COM
2
TXD.OUT
TXD.OUT
Ć
TXD.OUT
15
3
RXD.IN
RXD.IN
Ć
RXD.IN
16
NOT USED
RXD.IN
+
REC COM
4
RTS.OUT
RTS.OUT
+
RTS.OUT
17
5
CTS.IN
CTS.IN
+
CTS.IN
18
6
DSR.IN
DSR.IN
DSR.IN
19
NOT USED
RTS.OUT
Ć
NOT USED
7
SIG.GND
SIG.GND
SIG.GND
20
DTR.OUT
DTR.OUT
DTR.OUT
8
DCD.IN
DCD.IN
DCD.IN
21
9
22
NOT USED
DSR.IN
NOT USED
10
NOT USED
DCD.IN
NOT USED
23
NOT USED
DTR.OUT
NOT USED
11
24
12
25
13
NOT USED
CTS.IN
Ć
NOT USED
The shading indicates that the pin is reserved.
This processor’s serial port can support these configurations:
Digital Interface
Maximum Cable Length
RSĆ232C
15 m (approximately 50 ft)
RSĆ422A (compatible)
61 m (approximately 200 ft)
RSĆ423
61 m (approximately 200 ft)
Selecting Appropriate
Cables
More