Diagnostics; Behavior Of The I/O Module In The Event Of An Error; Diagnostics Via Status Byte; Table 61: Prioritization Of Status Information - WAGO 750 XTR Manual

88

Diagnostics

9 Diagnostics
9.1

Behavior of the I/O module in the event of an error

The I/O module always only allows the display of 1 error. If an error condition is
detected, the corresponding status bit is set. Bits used for application purposes
are hidden.
Some errors cause several error states to apply. For this reason, error states
have a prioritization. If several errors are present, the error with the higher priority
is always displayed.
Observe the display duration of diagnoses!
A diagnosed error condition is displayed for at least a duration of of 200 ms, even
if the detected error state is no longer present during this period. If a higher-
priority error state occurs during this period, the higher-priority error state is
immediately displayed for 200 ms and the lower-priority error state is lost.
The following prioritizations apply:

Table 61: Prioritization of Status Information

Status
Undervoltage
Short circuit
Output driver activated
PWM active
PWM started
Output state
9.2

Diagnostics via Status Byte

Table 62: Status Byte 0
Bit
4
5
6
Table 63: Status Byte 2
Bit
4
5
6
Manual
Version 1.0.0
750-677/040-000 4PWM 24 VDC 0.2A XTR
Explanation
Short circuit DO 1 or DO 2
Undervoltage
General error bit
Explanation
Short circuit DO 3 or DO 4
Undervoltage
General error bit
WAGO I/O System 750 XTR
Prioritätsstufe
High
Medium
Low