Yaskawa MP900 Series Ladder Programming Manual - Manual (Page 316)

5.10 System Function Instructions
5.10.6 Send Message (MSG-SND)
5-247
Instructions
5
„
Remote CPU Number (PARAM07)
Specify the remote CPU number. If the remote device is an MP2000-series Machine Controller, set the number to 1.
If the remote device is any other Yaskawa Controller that consists of more than one CPU Module, set the CPU number
of the send destination.
In all other cases, set the number to 0.
„
Coil Offset (PARAM08)
Set the offset to the word address of the coil. This setting is valid for function codes 01, 05, and 0F hex.
„ Input Relay Offset (PARAM09)
Set the offset to the word address of the input relay. This setting is valid for function code 02 hex.
„
Input Register Offset (PARAM10)
Set the offset to the word address of the input register. This setting is valid for function codes 04 and 0A hex.
„ Hold Register Offset (PARAM11)
Set the offset to the word address of the hold register. This setting is valid for function codes 03, 06, 09, 0B, 0D, 0E,
and 10 hex.
„
Reserved for System (PARAM12)
The channel number that is currently in use is held in this parameter. Set this parameter to 0000 hex from a user pro-
gram in the first scan after the power supply is turned ON. Do not change the value of the parameter after that. It is used
by the system.
„ Relationship between Data Addresses, Sizes, and Offsets
The following figure shows the relationship between the data addresses, sizes, and offsets.
„
No-protocol Communications
It is not necessary to set PARAM04, PARAM09, and PARAM10. Only MW registers can be sent. PARAM11 is the off-
set to the word address of the MW registers.
Offset to sending
address
Sending
data address
Data
Offset to receiving
address
Sending
data address
Data
Offset
Data
address
Data size
MW00000
MW†††††
Offset
Data
address
Data size
[MSG-SND] [MSG-RCV]