The proper path for CIP Routing to a remote ControlLogix CPU using Ethernet involves:
- Drivers Allen-bradley Network Remote
- Drivers Allen-bradley Network App
- Drivers Allen-bradley Network Configuration
- Drivers Allen-bradley Network & Wireless Cards Online
- Drivers Allen-bradley Network Login
The Allen-Bradley Ethernet Driver provides an easy and reliable way to connect Allen-Bradley Ethernet devices to Client applications, including HMI, SCADA, Historian, MES, ERP and countless custom applications. This driver supports the Allen Bradley SLC 5/05 series, PLC-5 series, ControlLogix, CompactLogix, and MicroLogix PLCs. This article is a guide to connect an Allen Bradley MicroLogix 1000 PLC to Fernhill SCADA. The Allen Bradley MicroLogix 1000 PLC has a single serial port which can be used to communicate with Fernhill SCADA. The serial port on the PLC is an 8 pin mini-DIN socket located on the left side of the PLC.

Drivers Allen-bradley Network Remote
- Going into the ControlLogix to be used for this routing via the local Ethernet module
- Going out to the backplane of that ControlLogix used for routing
- Going out through the Ethernet module in the routing ControlLogix that is on the remote network
- Going into the remote ControlLogix via its Ethernet module
- Going out of the remote ControlLogix Ethernet module to its backplane and to the CPU
That translates to a Device ID format for the ControlLogix Ethernet driver based on the following:
www.www.www.www,1,[x,2,yyy.yyy.yyy.yyy,1],z
where
www.www.www.www = IP Address of the local Ethernet module in the routing ControlLogix chassis
1 = Port to the backplane
Drivers Allen-bradley Network App
x = Slot of the remote Ethernet module in the routing ControlLogix chassis

2 - Port to the Ethernet network
yyy.yyy.yyy.yyy = IP Address of the Ethernet module in the remote ControlLogix chassis

1 = Port to the backplane
z = Slot of the remote ControlLogix CPU
Drivers Allen-bradley Network Configuration
Example:
Drivers Allen-bradley Network & Wireless Cards Online
I have a ControlLogix with one Ethernet module on the same network as my TOP Server PC with an IP Address of 192.168.1.1 and a second Ethernet module on a remote network that is in Slot 4. The remote ControlLogix that I wish to communicate with has an Ethernet module with an IP Address of 192.168.2.1 and the CPU is in Slot 0.
Drivers Allen-bradley Network Login
The Device ID I would use in the TOP Server ControlLogix Ethernet driver would be:
192.168.1.1,1,[4,2,192.168.2.1,1],0
Note: If you need assistance with a Device ID for a standard/local, non-routing connection to a ControlLogix or for a Gateway application (Data Highway / ControlNet), please refer to FAQ ID 1590.