Allen-Bradley 1756-CNBR ControlLogix ControlNet Interface Module

Allen-Bradley 1756-CNBR ControlLogix ControlNet Interface Module

Description

The Allen-Bradley 1756 ControlLogix CIP Safety I/O Modules provide a reliable, flexible, and scalable solution for integrating safety in industrial automation and control systems. Fitted with Compact GuardLogix® 5380 or GuardLogix 5580 controllers, offering functional safety rated up to and including SIL3 and PLe while supporting CIP safety bridging and routing functionality

After the module recovers from a NET ERR condition, the OK status indicator may remain flashing red until the first connection has been established through the module.

The 1756-CNB and 1756-CNBR modules now report error code 16#812 whenever its node address does not match the expected address.

All 1756-CNB and 1756-CNBR modules with firmware revisions prior to 11.002 will stop communicating after 70.96 days of powered operation. If this occurs, the OK status indicator will be solid red and the four character display on the front of the module will either freeze or scroll the message: ASSERT main.c line 1231. This anomaly can be avoided by removing and reinserting the ControlNet module, or cycling power to the chassis within the 71 days. Because the module will halt in another 70.96 days, you must perform a mandatory firmware upgrade to revision 11.002.

Technical Specifications