YASKAWA MP920 User Manual page 236

Appendix A System Functions
A.1.3 Parameter Details
Function
Code
33H
Function
Code
00H Not used.
01H Coil status read
02H Input relay status read
03H Holding register read
04H Input register read
05H Single coil status change
06H
Single holding register write
07H Not used.
08H Loopback test
09H Holding register read (extended)
0AH Input register read (extended)
0BH Holding register write (extended)
0CH Not used.
0DH Discontinuous holding register read
(extended)
0EH Discontinuous holding register write
(extended)
0FH Multiple coil status change
10H Multiple holding register write
Function
MELSEC random buffer write
1. Read/write request for coils or relays: Set the leading bit address of the data.
2. Continuous read/write request for registers: Set the leading word address of the data.
3. Discontinuous read/write request for registers: Set the leading word address of the
address table.
The following data address setting range is used for no-protocol transmissions.
F# Function
-
Data Size (PARAM06)
Set the size (number of bits or words) of the data to be read or written.
The setting range differs according to the function code.
Function
Data Address Setting Range
215IF, 218IF,
MECHATROLINK
0 to 32767 (0 to 7FFFH)
-
0 to 32767 (0 to 7FFFH)
Data Address Setting Range
215IF, 218IF
Not valid.
Bits 1 to 2000 (1 to 07D0H)
Bits 1 to 2000 (1 to 07D0H)
Words 1 to 125 (1 to 007DH)
Words 1 to 125 (1 to 007DH)
Not valid.
Not valid.
Not valid.
Not valid.
Words 1 to 508 (1 to Not valid.
1FCH)
Words 1 to 508 (1 to Not valid.
1FCH)
Words 1 to 507 (1 to Not valid.
1FBH)
Not valid.
Words 1 to 508 (1 to Not valid.
1FCH)
Words 1 to 254 (1 to Not valid.
0FEH)
Bits 1 to 800 (1 to 0320H)
Words 1 to 100 (1 to 0064H)
A-8
217IF, Serial
Data Address Setting Range
217IF, Serial MECHATROLINK
Words 1 to 252 (1 to
00FCH)
Words 1 to 252 (1 to
00FCH)
Words 1 to 252 (1 to
00FBH)
Words 1 to 252 (1 to
00FCH)
Words 1 to 126 (1 to
007EH)
(cont'd)
2