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Allen Bradley / Rockwell Automation

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1756-L7X ESM Module

Started by BobLfoot, 4 Sep 2012

1 post in this topic

Posted 4 Sep 2012

Well about 3 months ago our first 1756-L7X with ESM arrived on site and was commissioned. This past weekend we conducted our routine pest extermination thru heat treatment. The L7X was powered off and the room it was in brought up to 130 F for 24 hours. The room was then cooled back to 88 F and the L7X powered on. Result -- No Program in the L7X and the ESM appears to no be present from the L7X's perspective despite being physically present. Anyone used the L7X and the ESM Module. I can find very little on it in the manuals at www.ab.com/manuals. Looks like we'll be replacing the ESM Mdouel at this point.

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