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15BError messages
106BSystem errors: error codes M01...M20 (AS-i master command errors)
16-14
Error message
Cause(s)
Solution
M15
Slave interrupted 7.4 transfer
The addressed 7.4 slave has stopped
the transfer.
Possible cause:
error in the 7.4 data of the PLC.
Possible causes:
1. Interference on the bus
2. Software error in the AS-i slave
On 1:
►
Remove the cause of the error
On 2:
►
Contact slave manufacturer
M16
Slave deleted during active 7.4 transfer
During an active 7.4 protocol transfer
the slave was deleted from the list of
active slaves by the master.
Possible cause:
interference on the bus
►
Remove the cause of the error
M17
7.4 transfer still active
The attempt was made to start a new
7.4 transfer during an active 7.4 proto-
col transfer.
►
Repeat the command
M18
7.4 sequence error of fieldbus master
(host)
The sequence bit was set to 1 by the
host or the PLC although a value
smaller than 30 was indicated in the
"Dlen" data field.
►
Correct the value "Dlen"
or:
►
Change the sequence bit
M19
Invalid 7.4 data length (no MOD triparti-
tion)
The indicated data length "Dlen" is not a
multiple of the factor 3.
►
Correct the value "Dlen"
►
A 7.4 protocol transfer always con-
sists of several data triples.
M20 Invalid
command
The fieldbus master (host) or the PLC in
the controllere tried to send a command
to the master that it does not know.
►
Check the reason for the wrong
command and correct it.