How to Troubleshoot Non-Real-Time Data Transmission in Robustel Gateway's Edge to Cloud Function

How to Troubleshoot Non-Real-Time Data Transmission in Robustel Gateway's Edge to Cloud Function

Overview

Recently, customers have reported that when using the Robustel gateway's Edge to Cloud function, after collecting data from Siemens PLCs at the south end, the data transmitted via MQTT to the MES system at the north end is not real-time. For example, data received today is always from yesterday. Therefore, troubleshooting is required.

Hardware/Software Prerequisites

  • 1x Robustel Gateway
  • A computer with access to the gateway’s Web Management Interface
  • Administrator account privileges (e.g., admin)

Step-by-Step Troubleshooting Guide

Step 1: Check Time Synchronization Between Gateway and MES System

Step 2: Check Configuration Compatibility Between Southbound and Northbound Applications

  1. Check Southbound S7 Data Collection Configuration

Note the collection cycle in Edge2Cloud -> E2C Siemens S7 -> Read Interval. Currently set to 1 second.


  1. Check Northbound MQTT Upload Configuration

Note the upload cycle in Edge2Cloud -> E2C MQTT -> Report Interval. Currently set to 10 seconds

​

  1. Key Troubleshooting Point: Verify if Upload Interval Is Much Longer Than Collection Interval

In this case, the 10-second upload interval is significantly longer than the 1-second collection interval, resulting in data backlog and non-real-time transmission.

Solution: Adjust the upload interval to 1 second to resolve the issue.

​

Revision History

Version

Date

Author

Description of Changes

1.0

2025-11-04

Tony Li

Initial document creation



    • Related Articles

    • Edge Gateway Main Page

      Edge Gateway Configuration & Development Your central hub for mastering Robustel Edge Gateways, tailored for developers and system integrators. From basic device configuration to advanced application development and third-party integration, find the ...

    • Systemd Integration Guide for Robustel Gateway

      Overview This guide demonstrates how to integrate existing Linux applications into Robustel gateways using standard systemd service management. Applications managed by systemd run independently from the router service and follow standard Linux daemon ...

    • How to Deploy Ignition Edge on Robustel EG5120

      1. Overview This manual provides a detailed, professional guide for technical engineers on how to securely and reliably deploy Inductive Automation's Ignition Edge software on the Robustel EG5120 industrial edge gateway (running RobustOS Pro). By ...

    • How to Save System Logs to NVM (Non-Volatile Storage)

      Overview By default, gateway system logs may be stored in RAM (memory), which means the content is lost after a power cycle. Configuring the log save location to NVM (Non-Volatile Memory) ensures that system logs are retained persistently across ...

    • How to Troubleshoot Robustel Gateway（RobustOS System） Unable to Obtain IP Address After Inserting SIM Card

      Overview A normal SIM card's internet access primarily involves two steps: registration and dial-up. Many users find that after inserting a SIM card into a Robustel gateway, the SIM card can register with the operator but cannot obtain an IP address ...