Panasonic minas a series - Absolute Driver; RS485 Communication Protocol

- App. 25 -
Appendixes
RS485 Communication Protocol
For the transfer of commands, see the instructions of the controller.
RS485 communication is possible with Servo Ready output ON.
The following flow chart shows the communication when RSW(ID) = 1.
*1, *2 and *3 data depend on the value of
RSW(ID) on the LED touch panel.
The host sends the command to the desired driver according to the RS485 communication
protocol.
Checksum : OK if the value of the lowest 8
bits of the sum of the received absolute data
(15 characters) is 0.
RSW(ID)
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
*1 data
81h
82h
83h
84h
85h
86h
87h
88h
89h
8Ah
8Bh
8Ch
8Dh
8Eh
8Fh
*2 data
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
*3 data
2Dh
2Ch
2Bh
2Ah
29h
28h
27h
26h
25h
24h
23h
22h
21h
20h
1Fh
RS485 is not available
Start of transfer
N
N
N
N
Y
Y
Y
Y
End of transfer
The controller
requests the
driver to send
absolute data.
04h sent
80h sent
06h sent 15h sent
Absolute data
received
(15 characters)
81h received
06h received
80h received
05h received
Checksum OK
01h sent
00h sent
2Dh sent
*2
*3
D2h sent
81h sent *1
05h sent
04h received
The controller
The controller
receives absolute
receives absolute
data from the driver
data from the driver
.
The controller
receives absolute
data from the driver.
*1