Shihlin electric SL3 Series, User Manual

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Communication parameter group 07
PARAMETER DESCRIPTION 123
Message Content
*1) Address Set the address for sending information
*2) Function code Function code set by Master＋H80
*3)Error code Set code in the following table
Error code list:
Source Code Meaning Remarks
Slave reply
H01 illegal function code
In query information sent by Master, the function code cannot be processed by slave
device. Function codes are not H03, H06, H08, H10 (Suppose).
H02 illegal data address
In query information sent by Master, the address cannot be processed by Slave
(outside the addresses listed in the table, the reserved parameters, the parameters
not allowed to be read, the parameters not allowed to be written).
H03 illegal data value
In query information sent by Master, the data cannot be processed by the Slave
(outside parameter writing range, required specified mode, other error, etc.).
Note: When read multiple parameters, it is not an error even if they are reserved parameters.
In data sent by Master, Slave (inverter) will detect the following errors, but will not respond when it detects the error.
Error detection item table:
Error item Error content
Parity error
The parity test for data received by the inverter is different from the parity test set at the initial stage.
Frame error
The stop byte of the data received by the inverter mismatches the stop byte set at the initial stage.
Overflow error
When the inverter is receiving data, the host computer sends the next set of data before the inverter
finishes receiving the current one.
Error test
The LRC/CRC calculated by the inverter according to the received data is different from the received
LRC/CRC.
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Communication example
Example 1. CU operation mode written by communication
Step 1: Upper controller modifies operation mode of inverter
Mode Start Address Function Start address Write data Check Stop
ASCII H3A H30 H31 H30 H36 H31 H30 H30 H30 H30 H30 H30 H30 H45 H39 0D 0A
RTU >=10ms 01 06 10 00 00 00 8D 0A >=10ms
Step 2: After receiving and processing the data without error, inverter will send a reply to upper controller
Mode Start Address Function Start address Write data Check Stop
ASCII H3A H30 H31 H30 H36 H31 H30 H30 H30 H30 H30 H30 H30 H45 H39 0D 0A
RTU >=10ms 01 06 10 00 00 00 8D 0A >=10ms
Example 2. Read parameter 01-28（P.162）value by upper controller
Step 1: Upper controller sends message to inverter to read 01-28（P.162） value. 01-28（P.162） address is
H00A2。
Mode Start Address Function Start address Number of registers Check Stop
ASCII H3A H30 H31 H30 H33 H30 H30 H41 H32 H30 H30 H30 H31 H35 H39 0D 0A
RTU >=10ms 01 03 00 A2 00 01 25 E8 >=10ms
Step 2: After receive and processing the data without error, inverter will send 01-28（P.162） to upper controller
Mode Start Address Function Number of data read Read data Check Stop
ASCII H3A H30 H31 H30 H33 H30 H32 H46 H46 H46 H46 H46 H43 0D 0A
RTU >=10ms 01 03 02 FF FF B9 F4 >=10ms