ALLEN BRADLEY 1747-L551 PLC Processor
ALLEN BRADLEY 1747-L551 PLC Processor
ALLEN BRADLEY 1747-L551 PLC Processor
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B–12 RS-232 Communication Interface<br />
SLC 5/03, SLC 5/04, or SLC 5/05 <strong>Processor</strong> to another SLC 5/03,<br />
SLC 5/04, or SLC 5/05, IBM AT, 1770-KF3, 1775-KA, 1773-KA, 5130-RM,<br />
or <strong>PLC</strong>-5 (Hardware Handshaking Disabled) ➀<br />
9 Pin 5/03<br />
➁<br />
➁<br />
1<br />
2<br />
3<br />
4<br />
5<br />
6<br />
7<br />
8<br />
9<br />
DCD<br />
RXD<br />
TXD<br />
DTR<br />
COM<br />
DSR<br />
RTS<br />
CTS<br />
NC<br />
(DTE)<br />
➀ You can also use cable <strong>1747</strong>-CP3.<br />
Peripheral<br />
Device 9 Pin 25 Pin<br />
GND ➂<br />
1<br />
DCD 1 8<br />
TXD<br />
RXD<br />
DTR<br />
COM<br />
DSR<br />
RTS<br />
CTS<br />
3<br />
2<br />
4<br />
5<br />
6<br />
7<br />
8<br />
2<br />
3<br />
20<br />
7<br />
6<br />
4<br />
5<br />
(DTE)<br />
➁<br />
➁<br />
➁ Jumpers are only needed if you cannot disable the hardware handshaking on the port.<br />
➂ Connect to the shield of the cable.<br />
SLC 5/03, SLC 5/04, or SLC 5/05 <strong>Processor</strong> Connected to an IBM AT<br />
with a <strong>1747</strong>-CP3 Cable<br />
9 Pin 5/03 IBM AT 9 Pin<br />
1 DCD<br />
DCD 1<br />
2<br />
3<br />
4<br />
5<br />
6<br />
7<br />
8<br />
9<br />
RXD<br />
TXD<br />
DTR<br />
COM<br />
DSR<br />
RTS<br />
CTS<br />
NC<br />
TXD<br />
RXD<br />
DSR<br />
COM<br />
DTR<br />
CTS<br />
RTS<br />
3<br />
2<br />
6<br />
5<br />
4<br />
8<br />
7<br />
(DTE)<br />
(DTE)<br />
<strong>1747</strong>-KE to a Modem (Hardware Handshaking Enabled)<br />
9 Pin <strong>1747</strong>–KE<br />
1 NC<br />
2 RXD<br />
3 TXD<br />
4 DTR<br />
5 COM<br />
6 DSR<br />
7 RTS<br />
8 CTS<br />
9 NC<br />
(DTE)<br />
➀ Connect to the shield of the cable.<br />
Modem 9 Pin 25 Pin<br />
GND ➀<br />
1<br />
DSR 6 6<br />
RXD<br />
TXD<br />
DTR<br />
COM<br />
DCD<br />
RTS<br />
CTS<br />
2<br />
3<br />
4<br />
5<br />
1<br />
7<br />
8<br />
3<br />
2<br />
20<br />
7<br />
8<br />
4<br />
5<br />
RI 9 22<br />
(DCE)<br />
Publication <strong>1747</strong>-6.2
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