63
Parameter Description
Parameter Description
Step2. The inverter responds to the computer using format C after receiving and processing the data:
ACK
Station Number
0
CR
H06 H30
H30 H0D
Example 3.
PC communication for reading
P.195
:
Step1. PC sends inputting page change command to the inverter via format A:
ENQ
Station Number
0
Command Code
HFF
Waiting Time
Data
H0001
Sum Check
CR
H05
H30 H30
H46 H46
H30
H30 H30 H30 H31
H44 H44
H0D
P.195 is in page 1
Step2. After receiving and processing the data, the inverter responds to the computer via the formatC:
ACK
Station Number
0
CR
H06 H30
H30 H0D
Step3. The computer requests the inverter to read the value of P.195 via format B:
ENQ
Station Number
0
Command Code
H5F
Waiting Time
Sum Check
CR
H05
H30 H30
H35 H46
H30
H30 H42
H0D
First, deduct 100 from 195 and get 95. Next, invert 95 to hexadecimal H5F. Finally,
˶̂́̉˸̅̇ʳ
5 and F to ASCII
CODE
ʳ
H35 and H46.
Step4. After the inverter receiving the information and processes it correctly, the inverter will send
the value of
P.195
to the computer via format E:
STX
Station Number
0
Read Data
H1770(60Hz)
Unit ETX Sum
Check
CR
H02
H30 H30
H31 H37 H37 H30
H32
H03
H36 H31
H0D
Example 4.
Change the value of P.195 to 50 (the initial value is 60):
Step1 and 2 of this example are similar to Step1 and 2 of Example 3.
Step 3. The computer requests the inverter to enter 50 into P.195 via format A:
ENQ
Station Number
0
Command Code
HDF
Waiting Time
Data
H1388
Sum Check
CR
H05
H30 H30
H44 H46
H30
H31 H33 H38 H38
H45 H45
H0D
1) Deduct 100 from 195 and get 95.
1) The minimum unit of P.195 is 0.01, therefore the
Convert
95
to
hexadecimal
H5F.
product of 50 and 100 is 5000.
Add H5F to H80 and get HDF. 2) Convert 5000 to hexadecimal H1388. Convert 1, 3,
8, 8 to ASCII CODE before data transmission.
