Device-defined data type (AB: 1756_DO_AC_Diag:I:0)

This table lists the device-defined data types created according to the selected
Communication Format
when creating the device.
Comm Format: Full Diagnostics - Output Data, Listen Only - Full Diagnostics - Output Data, Full Diagnostics - Scheduled Output Data
Member Name
Type
Default Display Style
Description
Fault
DINT
Binary
For output devices, the Off/On status for the output point echoed back from the output device. This is used to verify proper communication only. No field side verification is done. For field side verification, see OutputVerifyFault.
  • 0 = No fault
  • 1 = Fault (OpenWire OR FieldPwrLoss OR FuseBlown OR NoLoad OR OutputVerifyFault OR FieldPwrLoss OR CommFault)
Data
DINT
Binary
Off/On status for the output point.
  • 0 = Off
  • 1 = On
CSTTimestamp
DINT
Decimal
Coordinated System Time Timestamp
 -
For output devices, the timestamp of diagnostic input data, including fusing, that is updated whenever a diagnostic fault occurs or goes away.
FuseBlown
DINT
Binary
Fuse is Blown
 - An electronic or mechanical fuse has detected a short or overload condition for an output point. All FuseBlown conditions are latched and must be reset.
  • 0 = No fault
  • 1 = Fault
NoLoad
DINT
Binary
No Load
 – Output diagnostic that indicates the absence of a load; for example, a wire is disconnected from the device. This diagnostic only operates in the OFF state.
  • 0 = No fault
  • 1 = Fault
OutputVerifyFault
DINT
Binary
Output Verify
 - Diagnostic that indicates that the output has been commanded to the ON state but the output has not been verified to be ON. For example, a shorted output would result in a fault.
  • 0 = No fault
  • 1 = Fault (output is not ON)
FieldPwrLoss
DINT
Binary
Field Power Loss
 - AC input or output diagnostic detects that field power has failed or is disconnected from the device.
  • 0 = No fault
  • 1 = Fault
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