Allen-Bradley micrologix 1500

Publication 1764-UM001B-EN-P - April 2002
4-24 Communication Connections
RS-232 Connections
Port 2 of the ENI is an 8-pin mini-DIN RS-232 port that provides
connection to DF1 compatible RS-232 devices. The connector pin
assignments are shown below.
The table below describes the RS-232 compatible cables.
Pin Port 2
1 24V dc
2 ground (GND)
3 no connection
4 ENI input data, RxD
5 no connection
6 no connection
7 ENI output data, TxD
8 ground (GND)
ENI Connected to: Catalog Number Use Cable
MicroLogix (all series)
1761-CBL-AM00
1761-CBL-HM02
Mini DIN to Mini DIN
45 cm (17.7 in)
2m (6.5 ft.)
SLC 5/03, SLC 5/04, or
SLC 5/05 Channel 0 1761-CBL-AP00
1761-CBL-PM02
Mini DIN to D-Shell
45 cm (17.7 in)
2m (6.5 ft.)
PLC-5
1761-CBL-AP00
1761-CBL-PM02
Mini DIN to D-Shell
45 cm (17.7 in)
2m (6.5 ft.)
8-pin mini-DIN
4
2
1
5
6
7
8
3