Rockwell Automation Publication 5094-UM001C-EN-P - April 2019 63
Output Module Features Chapter 4
Features Specific to Only
Standard and Safety Solid-
state Output Modules
The following features are specific to only the standard and safety solid-state
output modules, catalog numbers 5094-OB16, 5094-OB16XT, 5094-OB16S,
and 5094-OB16SXT.
No Load Detection
No Load Detection detects when a wire is disconnected from the output or a
missing load for each output point.
For standard modules, No Load Detection occurs only when the output point is
in the Off state. For safety modules, No Load Detection occurs when the output
points are in either state, Off or On.
For standard modules, the No Load Detection feature is disabled by default. You
must enable the feature in your Logix Designer application project. For safety
modules, the No Load Detection feature is always enabled; it is not configurable.
The standard output modules support the following minimum load currents:
• No load detection current, max = 0.5 mA
Table 12 - FLEX 5000 Digital Output Module - Fault and Data Status
Data Type Tag Name
(1)
(1) Not all tag names apply to all FLEX 5000 tag.digital I/O modules.
Triggering Event That Sets the Tag
Fault
Connection Faulted
(2)
(2) This tag provides module-wide data an affects all points simultaneously.
The owner-controller loses its connection to the module.
Ptxx.Fault The point data quality is bad.
Ptxx.NoLoad A no load condition exists on the point.
Ptxx.ShortCircuit A short-circuit condition exists on the point.
Status
RunMode The module is in Run Mode.
DiagnosticActive Indicates if any diagnostics are active.
DiagnosticSequenceCount A counter that increments when a diagnostic condition occurs or
goes away. The counter is a rolling counter that skips 0 on rollovers.
Ptxx.Data The point data is one or zero.
Ptxx.Uncertain The point data can be imperfect.
Uncertain
(2)
The module is operating outside its designed operating range if
data is under manual or override control.
IMPORTANT These FLEX 5000 output modules are the only ones to support
No Load Detection:
• 5094-OB16
• 5094-OB16XT
• 5094-OB16S
• 5094-OB16SXT
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