Are there system words in the M340 that indicate IO health?
System words 160 through 167 (%SW160 - %SW167) provide health status of M340 racks 0 through 7. 0 indicates an IO fault. 1 indicates correct operation of the IO module.
Legacy KB System (APS) Data: RESL210222 V1.0, Originally authored by DaSo on 01/04/2013, Last Edited by DaSo on 01/04/2013
Related ranges: Modicon M340