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How do you set Momentum digital outputs to hold last value over IO bus?

Title

Hold last value of Momentum discrete outputs on IO bus network

Issue

 

Product Line

Modicon Momentum

Environment

IO bus network

Cause

 

Resolution

You cannot set Momentum outputs to hold last value or set a drop holdup time over an IO bus network in the same manner as with TCP/IP or Modbus Plus.  Due to the nature of an IO bus network, if the master device looses communication with one node, all outputs of all IO bus nodes return to zero.

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