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Why do my XMIT function Blocks stop working when I power down a slave device on my Modbus network?



When programming multiple XMIT Function Blocks and using either the "Operation successful" or the "Operation terminated unsuccessfully" output of the XMIT to enable the next XMIT Function Block, you must wait 1 scan, if the "Operation terminated unsuccessfully" comes on, before enabling the next XMIT Function Block.