Preen ADG-L Series, Руководство пользователя

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ADG-L Series Programmable DC Power Supply
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5.4.2 Read register (error)
The master requests to read the slave (ID 01 hex) output voltage (start address 00 00
hex), but CRC check failed. Below is the query frame.
ID 01 The slave ID
Function code 03 Read the register data from the slave
Byte count 04 The byte cocunt of the output voltage is 4 bytes.
Start address (hi) 00 The start address of the output voltage (hi)
Start address (lo) 00 The start address of the output voltage (lo)
CRC check (lo) 58 The CRC value after checking 01 03 04 00 00 hex (lo)
CRC check (hi) 00 The CRC value after checking 01 03 04 00 00 hex (hi).
Below is the response frame sent by the slave,
ID 01 The slave ID
Function code 03 Read the register data from the slave.
Frame status 01 CRC check failed
Byte count 00
The byte count of the requested data is 0 byte
CRC check (lo) F0
The CRC value after checking 01 03 01 00 hex (lo)
CRC check (hi) 48 The CRC value after checking 01 03 01 00 hex (hi)