Communication Status Setting Function When A Cpu Stop Error Occurs - Mitsubishi Electric MELSEC iQ-F Series User Manual

4.3
Communication Status Setting Function When a
CPU Stop Error Occurs
Each FX5-ENET/IP can be set to stop or continue EtherNet/IP communications when a stop error occurs on the CPU module
which the FX5-ENET/IP is mounted on.
Therefore, EtherNet/IP communications can be continued even when the stop error occurring CPU module goes into the
STOP state.
Procedure
1.
Write "16: Continues EtherNet/IP communications" in 'EtherNet/IP data link continuation specification' (Un\G5004) while
the module is not communicating with the EtherNet/IP communication device.
2.
Turn on 'EtherNet/IP communication start request' (Un\G37.b0) to start the communications with the EtherNet/IP
communication device.
Operation of EtherNet/IP communications
When a CPU stop error occurs, the EtherNet/IP communications are made by the communication status setting function as
shown below.
When the EtherNet/IP communications are continued
(Un\G5004 = 16)
EtherNet/IP communications
CPU module status
'EtherNet/IP communication
in process' (Un\G35.b0)
*1 When the CPU module starts running after it stops, the EtherNet/IP communications will start.
*2 Communication enabled
4 FUNCTION
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4.3 Communication Status Setting Function When a CPU Stop Error Occurs

*2
RUN *1
STOP STOP
ON
OFF
When the EtherNet/IP communications are stopped (Un\G5004
= 0)
EtherNet/IP communications
CPU module status
STOP
'EtherNet/IP communication
OFF
in process' (Un\G35.b0)
*2
RUN *1
STOP
ON
OFF