Error Behavior - Mitsubishi Electric MELSEC L-Series User Manual

Functions
4.7

Error Behavior

If the ME3CAN1-L detects a failure during NMT state Operational it will automatically change to NMT
state Pre-operational by default. Alternatively the ME3CAN1-L can be configured to change to the
NMT state Stopped or remain in the current NMT state.
The following failures can be detected:
● Bus-OFF conditions of the CAN interface
● Only as NMT Slave:
– Life guarding event with the state 'occurred' and the reason 'time out'
– Heartbeat event with state 'occurred' and the reason 'time out'
● PLC RUN
can be set again to Operational when the PLC is in STOP.
With the setting value 00
is in STOP.
Severe CANopen€ device errors also may be caused by CANopen€ device internal failures.
Object 1029
Value (hex)
03–FE
Tab. 4-26: Error class values
PLC RUN
tional also when the PLC is in STOP.
4 – 34
STOP: If the setting value is 01
or 02
H
, Sub-index 01 : Error behavior object
H H
Description
00 Change to NMT state Pre-operational (only if currently in NMT state Operational)
01
No change of the NMT state
02 Change to NMT state Stopped
Not used
STOP: In case setting value 01
, the ME3CAN1-L will change into Pre-operational but
H
, the ME3CAN1-L cannot set into Operational as long as the PLC
H
the ME3CAN1-L will change into Pre-operational but can be set again to Opera-
H
Error Behavior
MITSUBISHI ELECTRIC