YASKAWA MP920 - Page 235

A.1 SEND MESSAGE Function (MSG-SND)
A-7
A
* 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.
33H MELSEC random buffer write
218IF only No
34H to 3FH Reserved by system.
No No
40H to 4FH Reserved by system.
No No
50H or later Not used.
No No
(cont’d)
Function
Code
Meaning 215IF, 218IF,
MECHA-
TROLINK*
217IF,
Serial*
Function
Code
Function Data Address Setting Range
215IF, 218IF,
MECHATROLINK
217IF, Serial
00H Not used. Not valid.
01H Coil status read 0 to 65535 (0 to FFFFH)
1
02H Input relay status read 0 to 65535 (0 to FFFFH)
1
03H Holding register read 0 to 32767 (0 to 7FFFH)
2
04H Input register read 0 to 32767 (0 to 7FFFH)
2
05H Single coil status change 0 to 65535 (0 to FFFFH)
1
06H Single holding register write 0 to 32767 (0 to 7FFFH)
2
07H Not used. Not valid.
08H Loopback test Not valid.
09H Holding register read (extended) 0 to 32767 (0 to 7FFFH)
2
Not valid.
0AH Input register read (extended) 0 to 32767 (0 to 7FFFH)
2
Not valid.
0BH Holding register write (extended) 0 to 32767 (0 to 7FFFH)
2
Not valid.
0CH Not used. Not valid.
0DH Discontinuous holding register read
(extended)
0 to 32767 (0 to 7FFFH)
3
Not valid.
0EH Discontinuous holding register write
(extended)
0 to 32767 (0 to 7FFFH)
3
Not valid.
0FH Multiple coil status change 0 to 65535 (0 to FFFFH)
1
10H Multiple holding register write 0 to 32767 (0 to 7FFFH)
2
31H MELSEC fixed buffer communications 0 to 32767 (0 to 7FFFH)
2
32H MELSEC random buffer read 0 to 32767 (0 to 7FFFH)
2