Diagnostics; I/O Module Behavior In The Event Of An Error; Table 37: Priority Levels Of Diagnostic Functions - WAGO 750 Series Manual

WAGO-I/O-SYSTEM 750
750-471 4AI U/I Diff Galv
8

Diagnostics

8.1

I/O Module Behavior in the Event of an Error

The response of the I/O module if a diagnostic is present depends on the
configuration for wire break monitoring, overload monitoring,
underrange/overrange monitoring and upper/lower limiting value monitoring. You
can activate or deactivate these diagnostics separately in WAGO-I/O-CHECK
(see section "Startup" > ... > "Parameterization with WAGO-I/O-CHECK").
The I/O module only allows one error to be indicated. A dedicated bit in the status
byte is assigned to each error. The associated status bit is set if an error status is
detected. Certain errors cause multiple error statuses to occur. This is why error
statuses are given priority levels. In the event of several errors being present, the
error with the highest priority will always be displayed.
The following priority levels apply:

Table 37: Priority Levels of Diagnostic Functions

Priority level
High
High
Medium
Medium
Low
Low
Diagnostics function
Wire break
Overload
Underrange
Overrange
Violation of user-defined lower limit (user underrange)
Violation of user-defined upper limit (user overrange)
Diagnostics 65
Manual
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