Yaskawa MP900 Series Machine Controller New Ladder Editor - Manual (Page 203)

2 Standard System Function
2.1.1 Send Message Function (MSG-SND)
2-10
Coil Offset (PARAM08)
Set the offset word address of the coil. This is valid in the case of function codes 01H, 05H,
and 0FH.
Input Relay Offset (PARAM09)
Set the offset word address of the input relay. This is valid in the case of function code 02H.
Input Register Offset (PARAM10)
Set the offset word address of the input register. This is valid in the case of function codes
04H and 0AH.
Holding Register Offset (PARAM11)
Set the offset word address of the holding register. This is valid in the case of function codes
03H, 06H, 09H, 0BH, 0DH, 0EH, and 10H.
For System Use (PARAM12)
The channel No. being used is stored. Make sure that this will be set to 0000H by the user
program on the first scan after turning on the power. This parameter must not be changed by
the user program thereafter since this parameter will then be used by the system.
Relationship between the Data Address, Size and Offset
Relationship between the data address, size and offset are described in Figure 2.1.
Fig. 2.1 Relationship between the Data Address, Size and Offset
When transmission protocol is set to non-procedural
The setting of PARAM04, PARAM08, PARAM09, and PARAM10 are not necessary.
Transmission enabled register is only MW.
Sending side
offset address
Sending side
data address
Data
[MSG-SND]
Receiving side
offset address
Data
[MSG-RCV]
Sending side
data address
Offset
Data size
Offset
Data size
Data
address Data
address
MW00000
MWxxxxx