device manual AS-i DP-Gateway
M11
slave data invalid
This error message has a multiple meaning and thus depends on the requested command:
1) slave readdressing
Address 32 = 0B was indicated as target address.
2) Write parameters
The attempt has been made to write a value greater than 0x7 to an A/B slave, ID=0xA.
M12
7.4 slave toggle/sequence failure
During transfer to the “7.4 slave protocol” the master detected an error in the triple sequence of the slave.
Possible causes:
Interference on the bus, software error in the AS-i slave.
M13
Host timeout on 7.4
During transfer to the “7.4 slave protocol” the master detected a time-out in the communication with the operating
system.
Possible causes:
Long plc cycle which slows down the transfer of the individual 7.4 segments of the operating system / plc to the
master to an unacceptable degree, t > 1 sec.
If this case occurs, the master will end the 7.4 transfer started last and will again enter into normal data exchange
with the respective slave.
M14
Invalid address
This error message has a multiple meaning and thus depends on the requested command:
1. The attempt was made to write a parameter to slave 0.
2. For readdressing, the address 0B or the address 0 was indicated as start and target address.
3. During the attempt to write the extended ID code 1 the address 0 was used.
M15
slave aborted 7.4
The addressed 7.4 slave has stopped the transfer.
Possible cause:
Error in the 7.4 data of the plc.
Interference on the bus, software error in the AS-i slave.
M16
slave deleted while 7.4 runs
During a running 7.4 protocol transfer the slave was deleted from the list of active slaves by the master.
Possible cause:
Interference on the bus
M17
7.4 transfer busy
The attempt was made to start a new 7.4 transfer during a running 7.4 protocol transfer.
M18
7.4 Host sequence failure
The sequence bit was set to 1 by the host / the plc although a value smaller than 30 was indicated in the Dlen
data field.
M19
Invalid data length (no MOD 3 separation)
The indicated data length Dlen does not necessarily mean that it is a multiple of factor 3.
A 7.4 protocol transfer always consists of several data triples.
M20
Invalid command
The host / plc has tried to send a command to the master which is unknown to it.
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