SMA SOLID-Q 50 - Read Input Register (Function Code: 0 x04); Request Frame Structure; Response Frame Structure; Error Response Structure

SMA New Energy Technology (Jiangsu) Co., Ltd.
15 SMASOLID-Q-Modbus-TI-en-10 | Version 1.0 Technical Information
3.8.2 Read Input Register (Function Code: 0x04)
Request:
Device ID
1 Byte
Function code
1 Byte
Register Address(Hi)
1 Byte
Register Address(Lo)
1 Byte
Register length
2 Byte
CRC(Lo)
1 Byte
CRC(Hi)
1 Byte
Response:
Device ID
1 Byte
Function code
1 Byte
Byte count
1 Byte
Data
N × 1 Byte
CRC(Lo)
1 Byte
CRC(Hi)
1 Byte
Error：
Device ID
1 Byte
Function code + 0x80
1 Byte
Exception code
1 Byte
CRC(Lo)
1 Byte
CRC(Hi)
1 Byte