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STBNIC2212 Cannot be Used with a ControlLogix 1756-ENET/B

Goals and Symptoms

The purpose of this Resolution is to inform users of Advantys STB Ethernet/IP NIMs of a communications problem between the STBNIC2212 and an Allen-Bradley ControlLogix 1756-ENET/B bridge.

Facts and Changes

The latest A-B bridge, 1756-ENBT/A, will successfully communicate with the STBNIC2212.

Although the 1756-ENBT/A bridge is a direct replacement for the older 1756-ENET/B bridge, the NIC2212 does NOT work with the older ENET/B bridge.

Causes and Fixes

There are no plans to correct the issue that occurs between the STBNIC2212 and the older ENET/B version. The Allen-Bradley 1756 - ENBT/A must be used.

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