Rockwell Automation 1756-XXXX ControlLogix Digital I/O Modules User Manual
Page 185
Rockwell Automation Publication 1756-UM058G-EN-P - November 2012
185
Tag Definitions
Appendix B
FilterOnOff_0_7…
(1 byte per group)
SINT
Filter Time On to Off—Filter time for digital filter in digital input modules for On to Off transition. Operates on groups of
eight points.
Valid DC filter times = 0, 1, 2, 9, 18 ms.
Valid AC filter times = 1, 2 ms.
FilterOffOn_0_7…
(1 byte per group)
SINT
Filter Time Off to On—Filter time for digital filter in digital input modules for Off to On transition. Operates on groups of
eight points.
Valid DC filter times = 0, 1, 2 ms.
Valid AC filter times = 1, 2 ms.
OpenWireEn
(1 bit per point)
DINT
Open Wire—Enables Open Wire diagnostic.
0 = Disable.
1 = Enable.
Table 36 - Diagnostic Input Module Data Tags
Name
Data Type
Definition
CSTTimestamp
(8 bytes)
DINT[2]
Coordinated System Time Timestamp—Timestamp can be configured to indicate the time that data changed (see
COSOffOnEn, COSOnOffEn, COSStatus, DiagCOSDisable) and/or the time that a diagnostic fault occurred (see OpenWireEn,
Field PwrLossEn).
Data
(1 bit per point)
DINT
Input Status—On/Off status for each input point.
0 = Off
1 = On
Fault
(1 bit per point)
DINT
Fault Status—An ordered status of faults that indicates a point is faulted and input data for that point may be incorrect.
Check other diagnostic faults, if they are available, for further diagnosis of the root cause. If communication to the input
module is lost or inhibited, then all points for the module will be faulted by the processor.
0 = No fault
1 = Fault (OpenWire or FieldPwrLoss or Comm Fault)
FieldPwrLoss
(1 bit per point)
DINT
Field Power Loss—AC input diagnostic detects that field power has failed or is disconnected from the module. Open
Wire also is detected.
0 = No fault
1 = Fault
OpenWire
(1 bit per point)
DINT
Open Wire—Diagnostic that detects that a wire has been disconnected from the input point. If a group of points shows
this fault, then possible the return (L1 or GND) is missing from the module. Also see FieldPwrLoss.
0 = No fault
1 = Fault
Table 35 - Diagnostic Input Module Configuration Tags (continued)
Name
Data Type
Definition