Ethernet/Ip Communication Automatic Start Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

12.6
EtherNet/IP Communication Automatic Start
Function
Function overview
With this function, EtherNet/IP communications can be started without using a program when the programmable controller is
powered off and on or the CPU module changes from STOP to RUN.
When not using this function, a program that sets a value other than 0 (start request) for ''EtherNet/IP communication start
request' (Un\G7340096) is required to start EtherNet/IP communications.
Setting method
In the application setting of the engineering tool, set "Start" for "EtherNet/IP Auto-start setting".
For details, refer to the following.
Page 115 EtherNet/IP Auto-start setting
Operation
When this function is enabled, when the CPU module changes from RUN to STOP, 16 (start request) is set as the 'EtherNet/
IP communication start request' (Un\G7340096) and communications start automatically.
However, buffer memory operation changes depending on the value set as the 'EtherNet/IP communication continuation
specification request' (Un\G7340104).
The following table shows the relationship related to EtherNet/IP communication automatic start with respect to each buffer
memory area.
• When the CPU module is in the RUN state and the system is powered off and on
Before
CPU module Status of "EtherNet/
status IP Auto-start
setting"
RUN state Start
Not to Start
• If the CPU module changes from STOP to RUN or RUN to STOP
Before
CPU module Status of
status "EtherNet/IP
Auto-start
setting"
STOP  RUN
Start
Not to Start
Status of 'EtherNet/IP
communication
continuation specification
request' (Un\G7340104)
16 (continue)
Value other than 16 (stop)

Status of 'EtherNet/IP Status of 'EtherNet/IP
communication communication
continuation continuation
specification status' specification request'
(Un\G7340105) (Un\G7340104)
0 (settings not reflected), 16 (continue)
or 2 (operating with Value
other than 16 (stop))
Value other than 16 (stop)

1 (operating with 16
(continue))
 
After
Status of 'EtherNet/IP
communication start
request' (Un\G7340096)
16 (start request) is set.
16 (start request) is set.
The status does not change.
After
Status of 'EtherNet/IP
communication start
request'
(Un\G7340096)
16 (start request) is set.
16 (start request) is set.
The status does not
*2
change.
The status does not
change.

12.6 EtherNet/IP Communication Automatic Start Function

Status of 'EtherNet/IP
communication
continuation specification
status' (Un\G7340105)
1 (operating with 16 (continue)) is
set.
2 (operating with Value other than
16 (stop)) is set.
Remains set to "0" (settings not
reflected).
Status of 'EtherNet/IP
communication
continuation
specification status'
(Un\G7340105)
1 (operating with 16
(continue)) is set.
2 (operating with Value
other than 16 (stop)) is
set.
The status does not
change.

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