Device-defined data type (AB: 1756_DI_DC_Diag:C:0)

This table lists the device-defined configuration data types created for the 1756 Digital diagnostic input device with filters.
Member Name
Data Type
Default Display Style
Description
DiagCOSDisable
(per device)
BOOL
Decimal
  • 0 = Allows diagnostic fault (for example, OpenWire, FieldPwrLoss) to also trigger Change Of State (COS) event in controller
  • 1 = Only change in input data triggers COS event in controller
See COSOnOffEn, COSOffOnEn, CSTTimestamp.
FilterOffOn_0_7
FilterOffOn_8_15
(1 byte per group)
SINT
Decimal
Filter Times OFF to ON
 - Filter time for digital filter in digital input devices for OFF to ON transition. Operates on a group of 8 points.
Valid DC filter times = 0, 1, 2 msec
Valid AC filter times = 1, 2 msec
FilterOnOff_0_7
FilterOnOff_8_15
(1 byte per group)
SINT
Decimal
Filter Times ON to OFF
 - Filter time for digital filter in digital input devices for ON to OFF transition. Operates on a group of 8 points.
Valid DC filter times = 0, 1, 2, 9, 18 msec
Valid AC filter times = 9, 18 msec
COSOnOffEn
DINT
Binary
COS ON to OFF
 - Triggers an event in the controller for ON to OFF transition of input point and causes the input device to update data table as soon as possible. Also updates the CSTTimestamp.
  • 0 = Disable
  • 1 = Enable
COSOffOnEn
DINT
Binary
COS OFF to ON
 - Triggers an event in the controller for OFF to ON transition of input point and causes input device to update data table as soon as possible. Also updates the CSTTimestamp.
  • 0 = Disable
  • 1 = Enable
FaultLatchEn
DINT
Binary
Fault is Latched
- For an input device, if enabled for a point, any OpenWire or FieldPwrLoss remains latched in the faulted state, even if the fault no longer exists, until you clear the fault.
  • 0 = Disable
  • 1 = Enable latching
OpenWireEn
DINT
Binary
Open Wire
 - Enables Open Wire diagnostic.
  • 0 = Disable
  • 1 = Enable
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