Yaskawa MP900 Series Machine Controller New Ladder Editor - Manual (Page 210)

2.1 Message Functions
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Data Address (PARAM05)
The data address requested by the sending side is output.
Data Size (PARAM06)
The data size (number of bits or number of words) of the requested read or write is output.
Called CPU Number (PARAM07)
PARAM07 outputs the called CPU number.
If the called device is an MP2000 Series Machine Controller, 1 is output.
If the called device is a Yaskawa Controller, but not in the MP2000 Series and it consists of
more than one CPU Module, the called CPU number is output.
In all other cases, 0 is output.
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.
Write-in Range LO (PARAM12), Write-in Range HI (PARAM13)
Set the write allowable range for the request for write-in. A request which is outside of this
range will cause an error. This is valid in the case of function code 0BH, 0EH, 0FH, and
10H.
0 ≤ Write-in Range LO ≤ Write-in Range HI ≤ Maximum value of MW Address
For System Use (PARAM14)
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.