3.5 04 (0x04) Read Multiple Input Registers
This function code is used to read the values at address 4xxxx
Request
Byte
Description
00
Address
01
Function Code
02 - 03
Starting Address
04 - 05
Number of
Addresses
Requested
*N = Number of addresses requested
Response
Byte
Description
00
Address
01
Function Code
02
Byte Count
03 -
Value from the
Requested Address
*N = Number of addressee requested
Error Response
Byte
Description
00
Address
01
Function Code
02
Exception Code
PIR-130-AC/DC User Manual Ver. 1.4.0, 2020/07/28
Length
Value
(in Bytes)
1
1 to 247
1
0x04
2
Refer to the Modbus Address Mapping
Table for details.
2
0x0001 to 0x0001 + *N
Length
Value
(in Bytes)
1
1 to 247
1
0x04
1
*N x 2
*N x 2
Length
Value
(in Bytes)
1
1 to 247
1
0x84
1
Refer to the Modbus standard for more
details.
.
82/93