How to Control Digital Output (DO) via SMS

How to Control Digital Output (DO) via SMS

Overview

Remote control of Digital Outputs (DOs) offers flexibility and convenience in managing connected devices. One commmon method is through a centralized management system, such as RCMS, which provides a web-based interface to monitor and control DOs from anywhere. Alternatively, a local WebGUI on the device itself allows for direct control by toggling buttons to change the DO status. For more advanced or automated control, users can leverage command-line interfaces (CLI) via SSH to send specific commands.
Finally, for situations where network connectivity is unreliable or unavailable, SMS commands provide a robust, text-based method to control DOs by sending simple instructions to the device's associated SIM card. The following are the operations to control DO through SMS.

Steps

1. Please ensure your SIM card is enabled SMS service. If you're not sure, please consult with SIM provider or Internet service provider (ISP).

2. Please enable SMS: WEBGUI -> Services -> SMS 

Note: SMS setting as shown in above photo is enabled by factory default 

3. Send command to the phone number of the SIM that use for the Robustel gateway.
SMS command format: username:password;command
Command as below (suppose the device have 2 DOs)
  1. do 1 on
  2. do 1 off
  3. do 2 on
  4. do 2 off
For example, if you want to control DO1 on, the command would be as below:

username:password;do 1 on

If the command executed successfully, device will reply OK, below photo for example.

    • Related Articles

    • How to Enable RCMS via SMS

      Prerequisites 1. Device mobile number 2. Admin credentials 3. RCMS server details: Server IP/URL Port number Primary server IP for ping detection SMS Configuration Command Send the following SMS command to the device: admin:admin; set rcms enable ...

    • Can I activate the RCMS App via SMS?

      A: Yes, for devices already in the field it is possible to install and activate the RCMS App remotely using SMS

    • How to Control User-Defined LEDs on the EG5200 via Command Line

      Overview This guide is for users of the Robustel EG5200 gateway who want to use the user1 and user2 LEDs as custom indicators. You may be in a scenario where you need a visual cue for a specific application status, script success, or network event. ...

    • How to Configure Custom Firewall Rules via CLI on RobustOS?

      Overview This guide provides instructions for network administrators who need to implement specific network access policies that are not covered by the standard firewall settings on a Robustel gateway. If you need to create advanced, customized ...

    • How to Set up Bidirectional SMS Integration with Telegram

      This guide describes how to set up bidirectional SMS integration with Telegram on a RobustOS Pro device. After setup, you'll be able to: Receive device SMS messages in your Telegram chat Send SMS from Telegram using simple commands Prerequisites ...