Delta ASDA-A3 Series User Manual page 868

ASDA-A3
Characters are encoded into the following frames and transmitted in series. The methods for
checking each type of frame are as follows.
ASCII mode:
10-bit character frame (for 7-bit character)
RTU mode:
11-bit character frame (for 8-bit character)
8E1
8O1
L
Start
0 1 2
bit
L
Start
0 1 2
bit
3 4 5 6
8-data bits
11-bit character frame
3 4 5 6
8-data bits
11-bit character frame
Modbus Communication
H
Even Stop
7
parity bit
H
Odd Stop
7
parity bit
9
9-5