Device-defined input tags (integer)

The set of tags associated with a device depends on the device type and the communication format. For each operational mode, integer or floating point, there are three sets of tags:
  • Input
  • Output
  • Configuration
This table includes the input tags for 1756 analog input devices operating in integer mode.
Member Name (as listed in Tag Editor)
Data Type
Definition
ChannelFaults
INT
Channel Faults
- Collection of individual channel fault indicators. For example, ChannelFaults.3 for channel 3.
Ch0Fault
BOOL
An ordered status of faults that indicates that a point is faulted and input data may be incorrect. Check other diagnostic faults, if they are available, for further diagnosis of the root cause. If communication to the input device is lost, then all points for a device are faulted.
  • 0 = No fault
  • 1 = Fault (calibration is ongoing; an overrange or underrange condition is present)
ModuleFaults
INT
A collection of all device level fault bits.
AnalogGroupFault
BOOL
Indicates if a channel fault occurred on any channel.
Calibrating
BOOL
Indicates if a calibration is currently in progress on any channel.
CalFault
BOOL
Calibration Fault
 - Status indicating if any channel has a bad calibration. Bad calibration means the last attempt to calibrate the channel failed with an error.
ChannelStatus
INT
Channel Status
- Collection of individual channel status bits.
Ch0Underrange
BOOL
Channel Underrange
- Alarm indicating the channel’s input is less than the minimum detectable input signal.
Ch0Overrange
BOOL
Channel Overrange
 - Alarm indicating the channel’s input is greater than the maximum detectable input signal.
Ch0Data
INT
Current analog value for the input point, where -32,768 counts is the minimum detectable input signal and 32,767 counts is the maximum detectable.
CSTTimestamp[ ]
Array of DINT
Coordinated System Time Timestamp
 - Timestamp taken at time the input data was sampled (or, if an output, when the output was applied) in terms of microseconds relative to the backplane. Must be addressed in 32-bit chunks as an array
RollingTimestamp
INT
Rolling Timestamp
 - Timestamp taken at time the input data was sampled, or if an output when the output was applied, which is in terms of milliseconds relative solely to the individual device.
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