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72
Diagnostics
9.3
Data Exchange Operating Mode
Table 52: Diagnostics, Data Exchange
Diagnostics
Wrong length
Checksum error Data transmission was
Timeout
Manual
Version 1.3.0
750-652/040-000 Serial Interface RS-232/RS-485 XTR
Event
The I/O modules have
different process image
sizes
interrupted. The last valid
value is retained in the
process image.
The data transmission is
interrupted or has been
interrupted for a longer
period of time (see
checksum error).
The process image (input)
has been overwritten with
the value 0.
WAGO-I/O-SYSTEM 750 XTR
Solution
•
Configure the same process
image size
•
Use a shielded cable
•
Change wire routing
•
Shorten cable
•
Eliminate interference
•
Check cable and clamping
points for uniformity
•
Check the configuration of the
I/O modules
•
for checksum error: See
Diagnostics "Checksum error"
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