Parameter Description
protocol and MODBUS communication protocol.
Note: Please switch the SW10 on the inverter farthest from the computer to 120.
2. Shihlin communication protocol
● Automatically switch the position machine and the inverter to ASCII codes (hexadecimal)
for communication.
● Please follow the following steps for data communication between the position machine
and the inverter.
①
②
③
④
⑤
PC
Inverter
Inverter
PC
time
Data reading
Data writing
The above steps concerning communication actions and communication data format are
explained below:
No. Action content
Operation
reference
Frequency
write-in
Parameter
write-in
Inverter
reset
Monitoring
Parameters
Read-out
①
Use the position
machine's user
procedure to send
communication request
to the inverter.
A A A A B B
②
Inverter data processing
time
Yes Yes Yes No Yes Yes
③
Inverter’s
replay
data
(check
data ①
error)
No error
(Accept the
(C) (C) (C) No E E
Error exists
(Refuse the
request)
D D D No D D
④
Position machine’s
processing delay time
No No No No No No
⑤
Reply
from the
position
machine
regarding
reply data
③ (Check
data ③
error)
No error
(No
No No No No (C) (C)
Error exists
(Output ③)
No No No No F F