Appendix G  MSG-SND/MSG-RCV Functions (Ethernet)
G.2  Message Receive Function (MSG-RCV)
A-103
( 10 ) Offset (PARAM08 to PARAM11)
Specify an offset address for the reception side data address. 
The address for the reception side will be displaced by the number of words designated by the offset. 
Note: 1.  For more information, refer to G.2.8 Relationship between Data Address, Data Size, and Offset for 
MSG-RCV Function.
2.  The offset cannot be a negative value.
The offset parameter is prepared for each target data type.
The following table lists the offset parameters.
The valid offset parameter may differ according to the function code.
The following table lists the valid parameters for the function codes.
Table G.25  Offset Parameter List
Parameter Contents Description
PARAM08 Coil offset Sets the coil's offset word address.
PARAM09 Input relay offset Sets the offset word address of an input relay.
PARAM10 Input register offset Sets the offset word address of an input register.
PARAM11 Holding register offset Sets the offset word address of a holding register.
Table G.26  Valid Parameter List for Offset of Each Function Code
Function Code Function Valid Offset Parameter
01H Reads coil state
PARAM08
02H Reads input relay state
PARAM09
03H Reads holding register content
PARAM11
04H Reads input register content
PARAM10
05H Changes single coil state
PARAM08
06H Writes to single holding register
PARAM11
09H Reads holding register content (extended)
PARAM11
0AH Reads input register content (extended)
PARAM10
0BH Writes to holding register (extended)
PARAM11
0EH Discontinuously writes to holding register (extended)
PARAM11
0FH Changes multiple coil states
PARAM08
10H Writes to multiple holding registers
PARAM11
31H Writes to fixed buffer
PARAM11
32H Reads the random access buffer
Invalid
33H Writes to the random access buffer
PARAM11