
5-2 Communicating with Devices on a Serial Link
Configuring the Hardware
The RS-232 port is an isolated serial port built-in to the front of the Main
Control Board. Refer to Opening Door Over Power Structure and Main
Control Board on page B-2.
To connect to the serial port:
1. Select the appropriate cable.
The 1756-CP3 cable attaches the controller directly to the controller.
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 taller right-angle connector housing than the 1756-CP3 cable.
2. Connect the cable to the serial port on the controller.
ahw0914.eps
Serial Port
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
40046.eps
Commenti su questo manuale