Rockwell Automation 1794-L34 FlexLogix Controller System User Manual User Manual
Page 17
Publication 1794-UM001G-EN-P - January 2007
Directly Connect to the Controller via the Serial Port 17
3. Connect the appropriate cable to the serial port on the
controller.
4. If necessary, attach the controller to the isolator.
no
The 1756-CP3 cable attaches the controller directly to the RS-232 device.
If you make your own cable, it must be shielded and the shields must be tied to the metal shell
(that surrounds the pins) on both ends of the cable.
You can also use a 1747-CP3 cable from the SLC product family. This cable has a larger right-angle
connector than the 1756-CP3 cable.
If you are using an isolator:
Use this cable:
2 RDX
3 TXD
4 DTR
COMMON
6 DSR
7 RTS
8 CTS
9
1 CD
2 RDX
3 TXD
4 DTR
COMMON
6 DSR
7 RTS
8 CTS
9
1 CD
straight
cable end
right-angle
cable end
modem
isolator
1761-NET-AIC
24 V dc
user-supplied modem cable
1761 cable
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