Rockwell Automation 1756-XXXX ControlLogix Digital I/O Modules - Manual (Page 188)

188 Rockwell Automation Publication 1756-UM058G-EN-P - November 2012
Appendix B Tag Definitions
ProgMode
(1 bit per point) DINT Program Mode—Used in conjnunction with ProgValue to configure the state of outputs when the controller is in
Program mode. See ProgValue.
0 = Use ProgValue (Off or On)
1 = Hold Last State
ProgValue
(1 bit per point) DINT Program Value—Used in conjunction with ProgMode to configure the state of outputs when the controller is in Program
mode. See ProgMode.
0 = Off
1 = On
ProgToFaultEn
(1 byte per module) BOOL Program to Fault Transition—Diagnostic enables the transition of outputs to FaultMode if a communication failure
occurs in Program mode. Otherwise outputs will remain in Program mode. See ProgMode, ProgValue, FaultMode,
FaultValue.
0 = Outputs stay in Program mode if a communication failure occurs.
1 = Outputs go to FaultMode if a communication failure occurs.
Table 41 - Diagnostic Output Module Input Data Tags
Name Data Type Definition
CSTTimestamp
(8 bytes) DINT[2] Coordinated System Time Timestamp—Timestamp of diagnostic input data including fusing (see BlownFuse,
NoLoad, OutputVerifyFault, FieldPwrLoss), which is updated whenever a diagnostic fault occurs or goes away.
Data
(1 bit per point) DINT Output Echo Status—Off/On status for the output point echoed back from the output module. This is used to verify
proper communication only. No field side verification is done. For field side verification, see OutputVerifyFault.
0 = Off
1 = On
Fault
(1 bit per point) DINT Fault Status—Indicates whether a point is faulted. Faulted I/O 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 (FuseBlown, NoLoad, OutputVerifyFault, FieldPwrLoss, or CommFault)
FieldPwrLoss
(1 bit per point) DINT Field Power Loss—AC output diagnostic detects that field power has failed or is disconnected from the module. No Load
also is detected.
0 = No fault
1 = Fault
FuseBlown
(1 bit per point) DINT Fuse Is Blown—An electronic or mechanical fuse has detected a short-circuit condition for an output point. All
FuseBlown conditions are latched and must be reset by the user.
0 = No fault
1 = Fault
NoLoad
(1 bit per group) DINT No Load—Diagnostic that indicates the absence of a load (such as, the wire is disconnected from the module). This
diagnostic operates only in the Off state
0 = No fault
1 = Fault
OutputVerifyFault
(1 bit per point) DINT Output Verify—Diagnostic that indicates that the input has been commanded to the On state but the output has not
been verified to be On.
0 = No fault
1 = Fault (output is not On)
Table 42 - Diagnostic Output Module Output Data Tags
Name Data Type Definition
CSTTimestamp
(8 bytes) DINT[2] Coordinated System Time Timestamp—Timestamp to be used with scheduled outputs and coordinated system time
(CST). Used to synchronize outputs across the system by indicating the time (CST timestamp) at which the output module
is to apply its outputs.
Data
(1 bit per point) DINT Output Status—Status for the output point originating from the controller.
0 = Off
1 = On
Table 40 - Diagnostic Output Module Configuration Tags (continued)
Name Data Type Definition