Mitsubishi Electric CANopen ME3CAN1-L, User Manual

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Error Messages Command Interface
MELSEC-L Series – CANopen Module ME3CAN1-L 5 – 9
5.4 Error Messages
If an error occurs during the execution of a command, 000F
H
is written to Un\G1000, and the error
class and additional data are stored to Un\G1000 to Un\G1066.
5.4.1 Unknown command used
The command written to Un\G1000 is unknown.
5.4.2 Command or parameter change while CIF was busy
After the command interface (CIF) has received a new command in Un\G1000, it will start to execute
this command with the parameters given in Un\G1001 to Un\G1066.
After the command has been written to Un\G1000, the result Un\G1000 will display "CIF busy" (FFFF
H
).
After the command written to Un\G1000 has been processed, the result Un\G1000 will be set to the
corresponding success/failure code and will not contain the value FFFF
H
.
If any buffer memory from Un\G1000 to Un\G1066 is accessed by a write access while the CIF is busy,
the data is not written to the buffer memory area and the "Command or parameter change while CIF
was busy" error is displayed in the result buffer memory. This error status must be acknowledged/
reset by a special command to make the CIF available again (refer to the next section 5.4.3 below).
5.4.3 Clear/Reset the "CIF was busy" error
To reset the CIF after a "Command or parameter change while CIF was busy" error (refer to section
5.4.3 above), FFFF
H
must be written to Un\G1000. Then Y(n+1)7 must be turned ON in order to trigger
the command execution. If the command execution is finished, X(n+1)7 will be turned ON.
The CIF is available again if Un\G1000 contains 0000
H
.
Address
(Decimal)
Description
Tab. 5-11:
Storing of error messages in the buffer memory
addresses Un\G1000 to Un\G1066
1000 000F
H
(Error)
1001 Error Class
1002–1066 Additional data, error class dependent
NOTE This error will also occur when a command is not supported in this function mode.
Address
(Decimal)
Description
Tab. 5-12:
Error message when an unknown command is
used
1000 000F
H
(Error)
1001 Error Class: 0064
H
1002–1066 Unused
Address
(Decimal)
Description
Tab. 5-13:
Error message when a command or parameter
change was attempted while CIF was busy
1000 000F
H
(Error)
1001 Error Class: FFFF
H
1002–1066 Unused