Allen-Bradley ControlLogix User Manual

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

Allen-Bradley ControlLogix Specifications

General

Communication	EtherNet/IP, ControlNet, DeviceNet, DH+
I/O Capacity	Up to 128, 000 I/O points (varies by configuration)
Redundancy	Supported (with specific modules)
Programming Software	Rockwell Automation Studio 5000 Logix Designer
Operating Temperature	0°C to 60°C (32°F to 140°F)
Programming Languages	Ladder Logic, Function Block Diagram, Structured Text, Sequential Function Chart
Modularity	Yes
Certifications	UL, CE
Processor Type	Multiple options available, including standard, safety, and extreme environment processors
Power Supply	Multiple options available, including standard and redundant power supplies with various voltage ranges (e.g., 24V DC, 120/240V AC)