Allen-Bradley SLC 500 Quick Start Manual page 58

5–14 Using RS232-to-Ethernet Channel-to-Channel Passthru
SLC 5/05 #1 Bridge
Ladder logic is not required for the SLC 5/05 which acts as a bridge
from DH485-to-Ethernet. However, you must set up a passthru
routing table file when configuring the bridge. The channel
configuration is shown below, along with the routing table.
SLC 5/05 #1 Bridge Channel Configuration
Publication 1747-10.4