Example 2: Dh485-To-Ethernet And Ethernet-To-Dh485 - Allen-Bradley SLC 500 Quick Start Manual

1747-AIC
1747-C11 Cable
1747-PIC
Interface
Converter
RS232 Port
Personal Computer
RSLinx and RSLogix 500
Using RS232-to-Ethernet Channel-to-Channel Passthru

Example 2: DH485-to-Ethernet and Ethernet-to-DH485

In the following diagram, the SLC 5/03 uses DH485 protocol to send
a remote message to SLC 5/05 #1. The SLC 5/05 #1 passes the
message through to SLC 5/05 #2 via Ethernet. The SLC 5/05 #2 can
also send a message to the SLC 5/03 via the SLC5/05 #1 bridge.
The SLC 5/05 #1 processor routes the message to the SLC 5/03 via
DH485.
Important:
DH485
SLC 5/03
Channel 1
DH485 Node 1
Ethernet Port
with
SLC 5/03 Using DH485
The remote message ladder logic, setup, and channel configuration
are shown on page 5–12.
In the SLC 5/05 #1 bridge, Status File Bit S:34/0 must
be set to 0 to enable DH485-to-Ethernet passthru. Set
Status File Bit S:34/5 to 0 to disable DF1-to-Ethernet
passthru.
1761-NET-AIC
Ethernet Hub
5–11
SLC 5/05 #1 Bridge
Channel 0
DH485 Node 2
IP Address 130.151.81.104
SLC 5/05 #2
IP Address 130.151.81.139
Publication 1747-10.4