GN-9371_2_3 User Manual
Page 85 of (110)
G-series GN-9371_2_3 PIO Rev. 1.02.docx
A.3.4 (0x04) Read Input Registers
This function code is used to read from 1 to approx. 125 contiguous input registers in a remote device. The
Request PDU specifies the starting register address and the number of registers. The register data in the
response message are packed as two bytes per register, with the binary contents right justified within each
byte. For each register, the first byte contains the high order bits and the second contains the low order bits.
• Request
• Response
- In case of address 0x0000, 0x0001 input register value: 0x0080, 0x0000.
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