Appendix G  MSG-SND/MSG-RCV Functions (Ethernet)
G.1  Message Transmit Function (MSG-SND)
A-82
G.1.8 Relationship between Data Address, Data Size, and Offset for MSG-SND 
Function
The relationship between data address, data size, and offset is as follows, when transmitted with offset: 
( 1 ) When Reading
Fig. G.4  Data Flow when Reading
Fig. G.5  Parameter Setting
MW00000
MWxxxxx
Offset A
Data address B
Data size C Data
M register
MP2000 series (transmission: master) Remote device (reception: slave)
Data address B
Data size CData
Start address of the read 
data storage area 
Coil, input relay, 
input register, and holding registers
[MSG-SND function]
Parameter list
PARAM00
PARAM01
:
PARAM05
PARAM06
PARAM07
PARAM08
PARAM09
PARAM10
PARAM11
:
PARAM16
Data address B 
Data size C
Offset A
Valid parameter may differ, depending on the function code and 
   communication protocol used.