Allen-Bradley ControlLogix - Determining Total Connection Requirements

1756-6.5.3 - December 1999
Allocating Communication Connections A-9
Determining Total
Connection Requirements
The Logix5550 controller supports 250 connections. Use the following
table to tally connection requirements for a Logix5550 controller.
Connection Type Module
Quantity
Connections
per Module
Total
Connections
local I/O module 1
remote I/O module (direct connection only) 1
1756-MO2AE servo module 3
local 1756-CNB module 0
remote 1756-CNB module through local
1756-CNB module
1
1756-DHRIO module 1
1756-ENET module 0
1756-DNB module 2
Universal Remote I/O logical racks or chassis
of less than logical rack
1
produced tag
produced tag
number of consumers
1
1
consumed tags 1
block-transfer messages 1
other messages 1
Total