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Modbus RTU Function List |
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The DGH
D1000M, D5000M, and
DIN-100 series products are Modbus RTU compatible. The Modbus RTU protocol is widely accepted throughout the PLC and data acquisition industry for communicating data. A standardized list of control functions read and control I/O signals within a process system. The supported list of master function codes are listed below. |
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| Modbus
Function Code |
DGH
ASCII Equivalent |
Definition |
| 01 - Read
Coil Status |
$1DI |
Read Digital Inputs |
| 04 - Read
Input Register |
$1RD |
Read Analog Input Value |
| 05 -
Force Single Coil |
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Set One Digital Output |
| 06 -
Preset Single Register |
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Control Special Functions |
| 15 -
Force Multiple Coils |
$1DOxx |
Set Multiple Digital
Outputs |
Virtually every
commercial data acquisition, data collection or process control program
software program available today contains support for the Modbus RTU
protocol. Check with your software vendor to ensure support. |
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