1.Issue

How to know the absence of x80 IO in local M580 rack when it is configured as Device DDT ?

2.Environment

M580 series ，X80

3.Resolution

The detail diagnostics status of x80 IO could be accessed by implementing READ_STS_MX.
Here are two samples to get status for digital and analog modules.

When COM_FLT is set to 1 ,it means the module could not be detected by CPU and module would be absent in the rack.

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