118 Rockwell Automation Publication 1756-UM013B-EN-P - October 2019
Appendix B Module Tag Definitions
Output Tags
Tab le 7 describes the 1756-OBV8S module output tags.
Ptxx.FieldPowerOff BOOL Indicates that a field power loss condition exists on
the channel.
• 0 = No field power off condition
• 1 = Field power off condition
Safety Data
Ptxx.Status BOOL Indicates the channel status. • 0 = Bad, causing fault
• 1 = Good
Safety Data
Safety Packed Data
(1) If the Point Mode for the test output is Pulse Test or Power Supply when the Short Circuit condition is detected, the condition can be corrected but you cannot set the test output to a safe state.
Table 6 - 1756-OBV8S Module Input Tags
Name Data Type Definition Valid Values Available With These
Input Data Type Choices
Table 7 - 1756-OBV8S Module Output Tags
Name Size Definition Valid Values Available With These Output
Data Type Choices
Ptxx.Data BOOL Indicates the current output value. • 0 = Off
•1 = On
Safety Data
Safety Packed Data
Ptxx.ResetFault BOOL When 'Latch Fault until reset via output tag' mode is
Enabled, the I/O channel will hold safety input fault
indications until it checks that the fault is removed. If
the fault is removed, it will clear only the fault status
upon detecting that the ResetFault bit in its channel
sees a rising edge.
Rising edge: the fault status is released if
the fault has been removed.
Safety Data
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