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Rockwell Automation Allen-Bradley POINT Guard User Manual

Rockwell Automation Allen-Bradley POINT Guard
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Rockwell Automation Publication 1734-UM013J-EN-P - July 2014 43
Safety Inputs, Safety Outputs, and Safety Data Chapter 2
Analog I/O Status Data
Individual input status indicates whether each analog input point is normal
(ON) or faulted (OFF). In addition, the following diagnostic data is monitored:
User 24V Supply Overrange or Underrange
Sensor Power Overcurrent or Undercurrent
Channel Signal Overrange or Underrange
Broken Wire Detected (4…20 mA current mode)
Single-channel Discrepancy Error (channel fault)
In SIL 2 or SIL 3 operation, a single-channel discrepancy error occurs
when both measurements (internal to the module) of the same input signal
are not within tolerance. If a single-channel discrepancy occurs, indicating
a problem with the module, input status is set to zero and a zero input
value is reported for that channel.
SIL 3 Dual-channel Discrepancy Error (channel fault)
Alarms
High High and Low Low Alarm Overrange or Underrange
High and Low Alarms Overrange or Underrange
Dual-channel Tachometer Dual Low Inputs Detected
Tachometer Frequency Overrange or Underrange
The alarm status is reported in the Alarm Status attribute for each channel.

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Rockwell Automation Allen-Bradley POINT Guard Specifications

General IconGeneral
BrandRockwell Automation
ModelAllen-Bradley POINT Guard
CategoryI/O Systems
LanguageEnglish

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