Rockwell Automation Publication 1791ES-UM001G-EN-P - November 2016 53
Install the Module Chapter 3
EtherNet/IP Connections
See Table 8 for a description of the pins in the EtherNet/IP connector.
Table 8 - EtherNet/IP Connector Pin Descriptions
I/O Connections
For wiring diagrams, see Wiring Examples on page 63.
See Figure 21
for a description of the pins in the I/O connector.
Figure 21 - I/O Connector Pin Descriptions
Table 9 - Terminal Positions for I/O Field Power
Pin No. Signal
8 No connection
7 No connection
6 Receive data minus
5 No connection
4 No connection
3 Receive data plus
2 Transmit data minus
1 Transmit data plus
IMPORTANT Because the I/O connector has a structure that helps prevent incorrect
wiring, make connections at the specified locations that correspond to
the terminal numbers.
Terminal No. Signal Terminal No. Signal
1 Input +24V DC 3 Output +24V DC
(1)
(1) Applies only to catalog number 1791ES-IB8XOBV4 module.
2 Input -24V DC 4 Output -24V DC
(1)
8
1
18 19 20 21 22 23 24 25 26
27 28 29 30 31 32 33 34
10 11 12 13 14 15 16 17
1 2 3 4 5 6 7 8 9
I/O Field Power: 1 2 3 4
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