Routing ControlLogix to ControlLogix via DH+ Description of KEPServerEX device ID 192.168.111.116,1,[1,2,8,1],0 OPC Client Application AB CLX B CLX A 0 1 2 3 ControlLogix (A) Slot 0 = Logix 5550 Slot 1 = 1756-DHRI0 Channel B = Node 11 Slot 2 = 1756-CNB Channel A = Node 4 Slot 3 = 1756-ENBT IP = 192.168.125.116 Logix 5550 to Logix 5550 via Routing over DH+ ControlLogix (B) Slot 0 = Logix 5550 Slot 1 = 1756-DHRI0 Channel A = Node 8 Slot 2 = 1756-CNB Channel A = Node 13 Slot 3 = 1756-ENBT IP = 192.188.185.117 CLX B 0 1 2 3 Ethernet DH+ Ethernet DH+ 192.168.111.116 = 1756-ENBT module of Device A ,1 = Port # of the 1756-ENBT module where you gain access to the Back plane of the ControlLogix PLC (see port reference key) ,[1 = Onto Slot 1 of Device A (1756-DHRIO module) ,2 = Out of Port 2 of the 1756-DHRIO module in Device A where Channel A = Port 2 (see port reference key) ,8 = Into Node 8 on Device B ,1] = Specifies the Port # of the 1756-DHRIO module where you gain access to the Back plane (see port reference key) ,0 = Slot # of the CPU on the Target Device (see Target Device description) INTERFACE MODULE PORT 1 PORT 2 PORT 3 1756-ENBT Back plane Ethernet Network N/A 1756-DHRIO Back plane DH+ Network on Channel A DH+ Network on Channel B 1756-CNB Back plane ControlNet Network N/A SoftLogix EtherNet/IP Messaging Virtual Back plane Ethernet Network N/A