Parameter Description
Parameter Description
74
Step 2. The inverter responds to the computer after receiving and processing the data,
Mode
Start
Address Function
Initial Address
Write Data
Check
End
ASCII
H3A
H30
H31
H30
H36
H31H30
H30
H30
H30
H30
H30
H30
H45
H39
0D 0A
RTU
>=10ms
01
06
10
00
00
00
8D 0A
>=10ms
Example 2
.Read computer communication P.195:
Step 1. PC requests the inverter to read the value of P.195. The address of P.195 is H00C3.
Mode
Start
Address Function
Initial Address
Register Number
Check
End
ASCII
H3A
H30
H31
H30
H33
H30H30
H43
H33
H30
H30
H30
H31
H33
H38
0D 0A
RTU
>=10ms
01
03
00
C3
00
01
74 36
>=10ms
Step 2. After the inverter receives the data and processes the data without encountering errors; the
inverter will send the value of P.195 to the computer.
Mode
Start
Address Function
Read Data
Number
Read Data
Check
End
ASCII
H3A
H30
H31
H30
H33
H30 H32
H31
H37
H37
H30
H37
H33
0D 0A
RTU
>=10ms
01
03
02
17
70
B6 50
>=10ms
H1770 into decimal is 6000, the unit of P.195 is 0.01. 6000×0.01
=
60, which is the value of P.195.
Example 3
.Change the value of P.195 to 50
Step 1. The computer requests the inverter to input 50 into P.195.
Mode
Start
Address Function
Initial Address
Write Data
Check
End
ASCII
H3A
H30
H31
H30
H36
H30H30
H43
H33
H31
H33
H38
H38
H39
H42
0D 0A
RTU
>=10ms
01
06
00
C3
13
88
74 A0
>=10ms
Step 2. After receiving and processing the data, the inverter sends feedbacks to the computer.
Mode
Start
Address Function
Initial Address
Write Data
Check
End
ASCII
H3A
H30
H31
H30
H36
H30H30
H43
H33
H31
H33
H38
H38
H39
H42
0D 0A
RTU
>=10ms
01
06
00
C3
13
88
74 A0
>=10ms
Example 4
. Message from the computer for reading parameters from P.0 to P.11:
Step 1. The computer requests the inverter to read the value of P.0~P.11. The initial address is H0000.
Mode
Start
Address Function
Initial address
Register number
Check
End
ASCII
H3A
H30
H31
H30
H33
H30H30
H30
H30
H30
H30
H30
H43
H46
H30
0D 0A
RTU
>=10ms
01
03
00
00
00
0C
45 CF
>=10ms