Allen-Bradley ControlLogix L7 User Manual

Rockwell Automation Publication 1756-UM001M-EN-P - February 2012 127
Manage Controller Communication (connections) Chapter 7
Calculate Connection Use
The total connection requirements of a ControlLogix system include both local
and remote connections.
Local Connections
Local connections refer to connections used to communicate between modules
housed in the same ControlLogix chassis (that is, the local modules). Use this
table to calculate the number of local connections based on the configuration of
your local chassis.
Table 36 - Local Chassis Connections
Local Connection To Device Quantity Connections per
Device
Total Connections
Local I/O module (always a direct connection) 1
1756-M16SE, 1756-M08SE, or 1756-M02AE servo module 3
• 1756-CN2, 1756-CN2R, 1756-CN2RXT ControlNet communication module
• 1756-CNB, 1756-CNBR ControlNet communication module
0
• 1756-EN2F, 1756-EN2T, 1756-EN2TXT, or 1756-EN2TR EtherNet/IP communication module
• 1756-ENBT EtherNet/IP communication module
0
1756-EWEB EtherNet/IP web server module 0
1756-DNB DeviceNet communication module 2
1756-RIO remote I/O communication module (Connection count depends on module configuration
and could be as many as 10 per module.)
1
1756-DHRIO DH+/universal remote I/O communication module
Each adapter associated with the module
1
1
1756-DH485 DH-485 communication module 1
Total

Allen-Bradley ControlLogix L7 Specifications

General

Brand	Allen-Bradley
Model	ControlLogix L7
Category	Controller
Language	English