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Parameter Description
Parameter Description
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Communications examples
Example 1
Write CU (communication) mode by Communication
Step 1. Modify the inverter mode by the computer
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
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