Mitsubishi Electric MELSEC iQ-R Series User Manual page 280

Option
When Cyclic is selected for the trigger specification, change the value of 'RPI' (Un\G7751688) or of the i_uRPI(RPI) of the
module function block to change the sending interval from the value set in the Class3 communications parameters.
CPU module
(1) Turn on 'Class3/UCMM communication execution request' (Un\G7749632 to Un\G7749647).
(2) Command request
(3) Change RPI from 200ms to 400ms.
Precautions
An area available for Class3 message communications is limited to an area for a connection set in the Class3
communications parameters in "EtherNet/IP Configuration".
If a request is executed by using an area not available for Class3 communications (request area where the value of
'Communication method specification' (Un\G7751680) is 0001H (UCMM communications)), an error (error code: 0004H) is
stored in 'Result storage area' (Un\G7752706) in the corresponding response area.
12 FUNCTIONS
278
12.3 Message Communication Function (Client)
RJ71GN11-EIP
Client
(1)
200
ms
200
ms
200
(3)
ms
400
ms
External device
Server
(2)
(2)
(2)
(2)
(2)