5 Implementation of Modbus TCP
5.10 Diagnostic messages of the modules
106
XI/ON: XNE-GWBR-2ETH-MB
10/2011 MN05002008Z-EN
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COM
ERR
Communication SWIRE
A communication error is present, such as a slave is no longer reached, its
internal timeout has elapsed or communication is faulty. The master cannot
carry out data exchange with at least one slave.
0
OK
No error present.
1
faulty
An error is present.
U
SWERR
Voltage U
SW
Voltage fault in U
SW
, voltage U (17 VDC) for supplying the SWIRE slaves
0
OK
No error present.
1
Under-
voltage
An error is present.
GENERAL
ERR
Error message
The creation of a function block shows that systems / function blocks for the
general checking of a slave for any diagnostics messages present only check
the first byte.
0
None
No diagnostics message present.
1
Present
One/several diagnostics messages present.
Byte 2
SD
ERR
Communication SWIRE slave
If the parameter SD
ERR
is set for group diagnostics, this bit indicates an error
as soon as only one slave on the bus sets its SD
ERR
error bit.
0
OK
No error is present or diagnostics function has been
deactivated via the parameter setting.
1
faulty
An error is present.
PKZ
ERR
Overcurrent protective circuit-breaker
If the parameter PKZ
ERR
is set for group diagnostics, this bit indicates an error
as soon as only one PKZ of a slave has tripped.
0
OK
No PKZ has tripped or diagnostics function has been
deactivated via the parameter setting.
1
Tripping
At least one PKZ has tripped.
Table 59:
Meaning of
diagnostics
data bits
Designation Value Meaning
