Rockwell Automation 1756-OF8H ControlLogix HART Analog I/O Modules - Manual (Page 166)

166 Rockwell Automation Publication 1756-UM533C-EN-P - February 2011
Appendix A Tag Definitions
HARTFaults
(Ch0…Ch7) SINT Binary Indicates a problem with HART data from the Field Device on Channel x.
Examples are HART not enabled, HART device not connected, HART communication failure due to
noise.
The following Field Device Status conditions also cause this to be set: Device Malfunction, PV Out of
Limits, Loop Current Saturated, and Loop Current Fixed.
ChxHARTFault BOOL Decimal HARTFaults.0…HARTFaults.7
ModuleFaults SINT Binary
CalFault BOOL Decimal ModuleFaults.1, 1756-IF8H Module Calibration Failed.
Calibrating BOOL Decimal ModuleFaults.2, Calibration in progress.
AnalogGroupFault BOOL Decimal ModuleFaults.7, Indicates a fault has occurred on any channel (any of ChannelFaults).
Ch0Status SINT Binary Indicates various alarms on the analog signal. Also sets Ch0Fault for Overrange, Underrange and
CalFault.
Ch0HHAlarm BOOL Ch0Status.0
Ch0Data > Ch0HHAlarmLimit.
If Process Alarms are configured to Latch by setting Ch0Config.ProcessAlarmLatch this bit remains
set even after the condition returns to normal, until reset via explicit CIP message. This message can
be sent from the RSLogix 5000 Module Properties Alarm dialog box or from the Logix controller via
MSG instruction.
Ch0LLAlarm BOOL ChxStatus.1
Ch0Data < Ch0LLAlarmLimit
If Ch0Config.ProcessAlarmLatch is set, this alarm remains set until it is unlatched
Ch0HAlarm BOOL Ch0Status.2
Ch0Data > Ch0HAlarmLimit
If Ch0Config.ProcessAlarmLatch is set, this alarm remains set until it is unlatched
Ch0LAlarm BOOL Ch0Status.3
Ch0Data < Ch0LAlarmLimit
If Ch0Config.ProcessAlarmLatch is set, this alarm remains set until it is unlatched
Ch0RateAlarm BOOL Ch0Status.4
Ch0Data changing faster than Ch0RateAlarmLimit.
Both Positive and Negative changes can cause this alarm.
If Ch0Config.RateAlarmLatch is set, this alarm remains set until it is unlatched
Ch0Overrange BOOL Ch0Status.5
Analog signal is greater than or equal to the maximum detectable signal. Because the signal cannot
be measured, it may be significantly above the maximum value
Ch0Underrange BOOL Ch0Status.6
Analog signal is less than or equal to the minimum detectable signal. Because the signal cannot be
measured, it may be significantly below the minimum value
Ch0CalFault BOOL Ch0Status.7
Set if an error occurs during calibration for Channel x, causing a bad calibration. Also sets CalFault
Ch1Status SINT Binary Indicates various alarms on the analog signal. Also sets Ch1Fault.
Ch2Status SINT Binary Indicates various alarms on the analog signal. Also sets Ch2Fault.
Ch3Status SINT Binary Indicates various alarms on the analog signal. Also sets Ch3Fault.
Ch4Status SINT Binary Indicates various alarms on the analog signal. Also sets Ch4Fault.
Ch5Status SINT Binary Indicates various alarms on the analog signal. Also sets Ch5Fault.
Ch6Status SINT Binary Indicates various alarms on the analog signal. Also sets Ch6Fault.
Ch7Status SINT Binary Indicates various alarms on the analog signal. Also sets Ch7Fault.
Table 59 - Analog Only (AB:1756_IF8H_Analog:I:0)
Member Name Type Style Description