RUT955 Modbus
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Main Page > RUT Routers > RUT955 > RUT955 Manual > RUT955 WebUI > RUT955 Services section > RUT955 Modbus
Summary
Template:Webui services modbus summary
Modbus TCP
Template:Webui services modbus modbus tcp
Template:Webui services modbus modbus table
Get Parameters
Router parameters are held within registers. Each register contains 2 bytes of information. For simplification, the number of registers for storing numbers is 2, while the number of registers for storing text information is 16. The register numbers and corresponding system values are described in the table below:
| REQUIRED VALUE | REGISTER NUMBER | NUMBER OF REGISTERS | REPRESENTATION |
|---|---|---|---|
| System uptime | 1 | 2 | 32 bit unsigned integer |
| GSM signal strength (dBm) | 3 | 2 | 32 bit integer |
| System temperature in 0.1 degrees Celcius | 5 | 2 | 32 bit integer |
| System hostname | 7 | 16 | Text |
| GSM operator name | 23 | 16 | Text |
| Router serial number | 39 | 16 | Text |
| Router MAC address | 55 | 16 | Text |
| Router name | 71 | 16 | Text |
| Current SIM card | 87 | 16 | Text |
| Network registration | 103 | 16 | Text |
| Network type | 119 | 16 | Text |
| Digital input 1 | 135 | 2 | 32 bit integer |
| Digital input | 137 | 2 | 32 bit integer |
| Current WAN IP address | 139 | 2 | 32 bit unsigned integer |
| Analog input | 141 | 2 | 32 bit integer |
Set Parameters
The Modbus daemon can also set some system parameters. System related parameters and how to use them are described below. The register number specifies where to start writing the required values.
| VALUE TO SET | REGISTER NUMBER | REGISTER VALUE | DESCRIPTION |
|---|---|---|---|
| Digital output 1 (ON/OFF) | 201 | 1/0 | Changes the state of the Open collector (OC) output (1 -ON; 0 - OFF) |
| Digital output 2 (ON/OFF) | 202 | 1/0 | Changes the state of the Relay output (1 - ON; 0 - OFF) |
| Switch WiFi (ON/OFF) | 210 | 1/0 | Switches WiFi ON or OFF (1 - ON; 0 - OFF) |
| Switch mobile data connection (ON/OFF) | 211 | 1/0 | Switches mobile data connection ON or OFF (1 - ON; 0 - OFF) |
| Switch SIM card | 212 | 0/1/2 | Switches SIM card in use (1 - SIM1; 2 - SIM2; 0 - SIM1 → SIM2 or SIM2 → SIM1) |
| Change APN | 213 | APN code | Changes APN. The number of input registers may vary. Bu the very first byte of set APN command denotes the number of the SIM card for which to set the APN. This byte should be set to 1 (in order to change APN for SIM card number 1) or to 2 (in order to change APN for SIM card number 2). |
| Reboot | 220 | 1 | Reboots the router |
See also
You can find more information on how to use Modbus with RUT routers here: Monitoring via Modbus
