YASKAWA MP2200 User Manual page 383

( 10 ) Offset (PARAM08, PARAM09, PARAM10, PARAM11)
Specify the offset addresses of read data storage areas and write data source of the transmission side.
The address for the transmission side will be displaced by the number of words designated by the offset.
Note: 1. For more information, refer to D.1.8 Relationship between Data Address, Data Size, and Offset for
MSG-SND 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.
Parameter
PARAM08 Coil offset
PARAM09 Input relay offset
PARAM10 Input register offset
PARAM11 Holding register offset
The valid offset parameter may differ, depending on the function code.
The following table provides the valid parameters for each function code.
Function
Code
01H
Reads coil state
02H Reads input relay state
03H Reads holding register content
04H Reads input register content
05H Changes single coil state
06H Writes to single holding register
09H Reads holding register content (extended)
0AH Reads input register content (extended)
0BH Writes to holding register (extended)
Discontinuously reads holding register
0DH
(extended)
Discontinuously writes to holding register
0EH
(extended)
0FH Changes multiple coil states
10H
Writes to multiple holding registers
Note: √: Available, -: Not available
( 11 ) Reserved by System 1 (PARAM12)
Used by system (the channel number of the communication buffer in use is stored).
Note: Before the first scan during power up, make sure to set it to "0" by using a user program.
After that, the register is used by the system, so never change the value with the user program.
( 12 ) Reserved by System 2 (PARAM13 to PARAM16)
Used by the system. Never change the value with the user program, etc.
Table D.4 Offset Parameter List
Content
Sets the coil's offset word address.
Sets the offset word address of an input relay.
Sets the offset word address of an input register.
Sets the offset word address of a holding register.
Table D.5 Valid Parameter List for Offset of Each Function Code
Function
Appendix D MSG-SND/ MSG-RCV Functions (Ethernet)
D.1 Message Send Function (MSG-SND)
Description
Protocol Type
Valid Offset
Extended
Parameter
MEMOBUS
√
PARAM08
√
PARAM09
√
PARAM11
√
PARAM10
√
PARAM08
PARAM11 √
√
PARAM11
√
PARAM10
√
PARAM11
√
PARAM11
√
PARAM11
√
PARAM08
√
PARAM11
MEMOBUS
√
√
√
√
√
√
–
–
–
–
–
√
√
A
A-33