Device defective or causing problems

In the Status window under theDiagnosticmenu there is a facility to look at the error messages that have occurred if the interface module is in exception or causing problems.  The message is displayed as a hexadecimal value with the following types of errors (where for example value $03 means two errors: $02 + $01):

·         $01 – input signal outside of the measuring range.

·         $02 – cold junction out of range.

·         $08 – current output ‹frozen›.

·         $10 – more status data detected.

·         $20 – cold start (reset) detected.

·         $04 – current output halted.

·         $40 – configuration changed.

·         $80 – device is defective.

The message ‹device defective› ($80) will also show up if there is a power failure while programming.  Until the configuration is corrected, the module will remain in the defective mode.  An error is indicated on the interface module by a flashing green ‹PWR LED› or the ‹FLT LED›.

The messages $01 to $40 do not reflect a defect but only information about the reason for the exception or disturbance.