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WAGO-I/O-SYSTEM 750 XTR
750-652/040-000 Serial Interface RS-232/RS-485 XTR
9
Diagnostics
9.1
Serial Operating Modes RS-232, RS-422 and RS-485
Table 50: Diagnostics, Serial Operating Modes RS-232, RS-422 and RS-485
Diagnostics
Input buffer full
Output buffer
full
Parity error
Overflow
9.2
DMX Operating Mode
Table 51: Diagnostics, DMX Operating Mode
Diagnostics
Transmission
failure when
receiving
Packet ID
Event
The I/O module receives
data via the serial interface
faster than accepted by the
application.
The I/O module receives
data faster from the
application than it sends via
the serial interface.
Data transmission was
interrupted.
Data loss has occurred.
Event
More than 1.2 s has passed
since receipt of a valid
packet.
The start code of the
received DMX packet is
not 0.
Diagnostics
Solution
•
Make sure that the application
always accepts data
immediately.
•
Reduce data traffic.
•
Use flow control.
•
Reduce baud rate.
•
Check "Continuous Send".
•
Reduce data traffic.
•
Increase baud rate.
•
Make sure that the opposite
side accepts data.
•
Check the configuration of the
interface parameters.
•
Use a shielded cable.
•
Change wire routing.
•
Shorten cable.
•
Eliminate interference.
•
Reduce baud rate.
Solution
•
Check wire routing.
•
Check cable type.
•
Check DMX sender operation.
•
Check wire routing.
•
Check cable type.
•
Check the start code of the
DMX sender.
•
Increase the number of
transmitting DMX channels
(min. 27 channels).
Version 1.3.0
71
Manual
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