Autonics DPU Series User Manual

9. Modbus Mapping Table
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9. Modbus Mapping Table
9.1 Function code 3 (0×03) = Read holding resisters
(1) Request
(2) Response
(2) Response
※
Exception code
0×01: Not supported command code.
0×02: Starting address of required data and transmittable address are di󰀨erent.
0×03: The number of required data is over than the number of transmittable data.
0×04: Transmittable data does not process properly.
9.2 Function code 4 (0×04) = Read input resisters
(1) Request
※
Exception code
0×01: Not supported command code.
0×02: Starting address of required data and transmittable address are di󰀨erent.
0×03: The number of required data is over than the number of transmittable data.
0×04: Transmittable data does not process properly.
(3) Error
(3) Error
Master to Slave
Master to Slave
Slave to Master
Slave to Master
Slave to Master
Slave to Master
0×01 0×03 0×00 0×00 0×00 0×16 ×× ××
Add.
Com-
mand
Start address Number of data CRC 16
High Low High Low High Low
0×01 0×03 0×10 0×03 0×E8 ... 0×03 0×E8 ×× ××
Add.
Response
command
Number of
data
1st data ... 16th data CRC 16
High Low ... High Low High Low
0×01 0×83 ×× ×× ××
Address
Response
command
Exception
code
CRC 16
0×01 0×04 0×00 0×00 0×00 0×10 ×× ××
Address Command
Start address Number of data CRC 16
High Low High Low High Low
0×01 0×84 ×× ×× ××
Address
Response
command
Exception
code
CRC 16
0×01 0×04 0×10 0×03 0×E8 ... 0×03 0×E8 ×× ××
Address
Response
command
Number
of data
1st data ... 16th data CRC 16
High Low ... High Low High Low

Autonics DPU Series Specifications

General

Brand	Autonics
Model	DPU Series
Category	Controller
Language	English