SUNFAR Self-Defined Communication Protocol 79
E500 Series Universal Low-Power Inverter
Data subentry: is corresponding to number of monitoring parameter items of the
inverter; as for E500 series inverter, the number of monitoring parameter items
is shown as below:
Monitoring
item
Data subentry Slave machine response data
d.0 00 output frequency
d.1 01 output voltage
...
...
...
...
...
...
d-31 31 The module temperature of the last fault recently
1.3.3 Command classification 2- Read function code parameters
Main machine sending frame size is 14 bytes, while slave machine response
frame size is 18 types.
Sent by main
machine
0 1 2 3 4 5 6 7 8 9 10 11 12 13
Frame header
Slave address
Slave address
2
Operation command
Operation command
Data classification
Data address
Data address
Checksum
Checksum
Checksum
Checksum
Frame end
Slave machine response
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Frame header
Slave address
Slave address
Slave machine response
Status feedback
Status feedback
Data classification
Data address
Data address
Parameter data
Parameter data
Parameter data
Parameter data
Checksum
Checksum
Checksum
Checksum
Frame end
The data classification and data address refer to command
classification 3 and 5.
The monitoring parameter of inverter refers to Chapter 4 of
E500 series inverter operation manual: Article 4.3 List of
status monitoring parameter.
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