YASKAWA MP920 User Manual page 235

Function
Code
33H MELSEC random buffer write
34H to 3FH Reserved by system.
40H to 4FH
Reserved by system.
50H or later Not used.
* Yes: Can be set, No: Cannot be set
Note: Only MW (MB) registers can be used as sending/receiving registers
during master operation.
MB, MW, IB, and IW registers can be used as coils, holding registers, input relays, and input
registers during slave operation.
The extended MEMOBUS functions can be used for communications between CP-316, CP-
317, CP-916A, and CP-916B via CP-215.
Data Address (PARAM05)
The data address setting differs according to the function code as shown below.
Function 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
31H
MELSEC fixed buffer communications
32H MELSEC random buffer read
A.1 SEND MESSAGE Function (MSG-SND)
Meaning
Data Address Setting Range
215IF, 218IF,
MECHATROLINK
Not valid.
0 to 65535 (0 to FFFFH)
0 to 65535 (0 to FFFFH)
0 to 32767 (0 to 7FFFH)
0 to 32767 (0 to 7FFFH)
0 to 65535 (0 to FFFFH)
0 to 32767 (0 to 7FFFH)
Not valid.
Not valid.
0 to 32767 (0 to 7FFFH)
0 to 32767 (0 to 7FFFH)
0 to 32767 (0 to 7FFFH)
Not valid.
0 to 32767 (0 to 7FFFH)
0 to 32767 (0 to 7FFFH)
0 to 65535 (0 to FFFFH)
0 to 32767 (0 to 7FFFH)
0 to 32767 (0 to 7FFFH)
0 to 32767 (0 to 7FFFH)
A-7
(cont'd)
215IF, 218IF, 217IF,
MECHA- Serial*
TROLINK*
218IF only No
No No
No No
No No
217IF, Serial
2
Not valid.
2
Not valid.
2
Not valid.
3
Not valid.
3
Not valid.
A
1
1
2
2
1
2
1
2
2
2