Diagnostics; Behavior Of The I/O Module In The Event Of Error; Table 43: Priority Levels Of Diagnostic Functions - WAGO 750 Series Manual

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Diagnostics

10 Diagnostics
10.1

Behavior of the I/O Module in the Event of Error

The behavior of the I/O module if a diagnosis is present depends on whether the
various parameters for monitoring are switched on or off.
You can activate or deactivate these diagnostics separately in WAGO-I/O-
CHECK (see Section "Commissioning" > ... > "Parameterization with WAGO-I/O-
CHECK").
The I/O module only ever 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. Some errors cause multiple error statuses to occur.
This is why error statuses are given priority levels.
In the event that several errors are present, the error with the highest priority will
always be indicated.
The following priority levels apply:

Table 43: Priority Levels of Diagnostic Functions

Priority Level
High
High
Medium
Medium
Low
Low
Manual
Version 1.0.0
750-1491 2AI Resistor Bridge (Strain Gauge)
Diagnostic Function
Overflow
Underflow
Measurement underrange
Measurement overrange
Violation of lower user limiting value (user underrange)
Violation of upper user limiting value (user overrange)
WAGO I/O System 750