Output Tags - Allen-Bradley 1756-IF8I User Manual

Appendix A Analog I/O Module Tag Definitions
Table 32 - 1756-IRT8I Module - Input Tags (continued)
Tag Name
Ch[x].CalGoodHighRef
Ch[x].CalBadHighRef
Ch[x].CalSuccessful
Ch[x].RateOfChange
Ch[x].Data
Timestamp
RollingTimestamp
Table 33 - 1756-IRT8I Module - Output Tags
Tag Name
Ch[x].LLAlarmEn
Ch[x].LAlarmEn
Ch[x].HAlarmEn
Ch[x].HHAlarmEn
194
Data Type Definition
BOOL Indicates that a valid High Reference signal has been
sampled on this channel.
BOOL Indicates that an invalid High Reference signal has been
sampled on this channel.
You must correct this condition to successfully calibrate
the module.
If calibration is aborted with an invalid High Reference
signal, the I.Ch[x].CalibrationFault tag is set for this
channel until a successful calibration is performed.
BOOL Indicates calibration on this channel is complete and the
Calibrating state has been exited.
This tag remains set after valid calibration for 1000
samples.
REAL Indicates the change in channel data since last sample in
Engineering Units/Second.
REAL Indicates channel data in scaled Engineering units.
DINT[2] 64-bit timestamp value that indicates when all eight
channels were last sampled.
This value is provided in terms of CIPSync time.
DINT 16-bit timestamp that 'rolls' from 0...32,767 ms.
Compatible with existing PID/PIDE instructions to
automatically calculate sample deltas. With this module,
this PID/PIDE instruction uses the RPI because there is no
RTS available.
For more information on the Rolling Timestamp, see
page 23.

Output Tags

The following table describes the Output tags associated with the
1756-IRT8I module.
Data Type Definition
BOOL Enables the Low Low Process alarm.
BOOL Enables the Low Process alarm.
BOOL Enables the High Process alarm.
BOOL Enables the High High Process alarm.
Rockwell Automation Publication 1756-UM540E-EN-P - December 2017
Valid Values
• 0 = Valid High Reference signal
has not been sampled on this
channel
• 1 = Valid High Reference signal
has been sampled on this
channel
• 0 = Invalid High Reference
signal has not been sampled on
this channel
• 1 = Invalid High Reference
signal has been sampled on this
channel
• 0 = Calibration was not
successful
• 1 = Calibration was successful
and calibrating state has been
exited.
Value representing the rate
of change
Any positive or negative value.
Determined by how you set the
scaling parameters on the channel.
For more information, see Scaling
on page 32.
CIPSync Timestamp data
0...32,767 ms;
where 1 ms = 1 count
Valid Values
• 0 = Alarm is disabled
• 1 = Alarm is enabled
• 0 = Alarm is disabled
• 1 = Alarm is enabled
• 0 = Alarm is disabled
• 1 = Alarm is enabled
• 0 = Alarm is disabled
• 1 = Alarm is enabled