Panasonic FP7 User Manual page 236

MC Protocol Communication Function
 Form of bulk read command in word unit (binary) and Example of reading 32 points
of internal relays M100 to M131 (device numbers of FP7: R64 to R83)
Command
Form
Command
Subcommand
Starting device
Device code
No. of devices
Response
Form
Exit code
Data of specified device
The maximum number of words that can be read at once is 960. When specifying the bit
device, one word is 16 bits.
9-12
Example
L 0x01 0x0401 Bulk read
H 0x04
L 0x00 0x0000 Word unit
H 0x00
L 0x64 0x000064
0x00
H 0x00
0x90 Device M
L 0x02
H 0x00
Example
L 0x00
H 0x00
L 0x00 M107 - M100
H 0x00 M115 - M108
L 0x34 M123 – M116
H 0x12 M131 – M124