Df1 Full-Duplex Peer-To-Peer; Applications For The Rs-232 Communication Interface - Allen-Bradley SLC 500 User Manual

B-20 RS-232 Communication Interface
Applications for the RS-232
Communication Interface
Publication 1747-UM011C-EN-P - December 2001
5130-RM to a SLC 5/03, SLC 5/04, or SLC 5/05 Processor, IBM AT, 1770-KF3,
1773-KA, 5130-RM, PLC-5, 1747-KE, or 1746-BAS (Hardware Handshaking
(1)
Disabled)
25-Pin 5130-RM
(2)
8
DCD
3
RXD
2
TXD
20
DTR
7
COM
6
DSR
(2)
4
RTS
5
CTS
22 NC
DTE
(1) You can also use cable 1747-CP3.
(2) Jumpers are only needed if you cannot disable the hardware handshaking on the port.
(3) Connect to the shield of the cable.
The figures below illustrate different applications for the RS-232
communication interface.

DF1 Full-Duplex Peer-to-Peer

Modem
SLC 5/03 Modular Controller
Peripheral
Device
9-Pin 25-Pin
(3)
1
GND
1 8
DCD
3 2
TXD
2 3
RXD
4 20
DTR
5 7
COM
6 6
DSR
7 4
RTS
CTS 8 5
DTE
Modem
SLC 5/03 Modular Controller
(2)
(2)