This document describe the process to FORCE the IoT files activation when your PLC/HMI is running and there is no IoT files in your C:\iot folder

Also this process should work when you already have your IoT files in the folder, running correctly per months and for some reason your facility stop to send readings and the IoT files verification flag is gray or red

Instructions

• Enter to C:\iot system folder and verify that IoT files doesn’t exist in your folder

• Activate configuration, login and start the code as usually do and check the MQTT status on the HMI o Gray: MQTT files not found o Green: Connected o Red: Error connection o Yellow: MQTT not activated

• Press logout button to edit the code o NOTE: Is not necessary press the stop button in this case

• If you already have your IoT files, is a good practice to add it to C:\iot folder to make sure in the next HMI restart your IoT will be read correctly. You must include certs + config files.

• Localize the GVLs folder on the project solution explorer and expand it and then open the GVL_Variables file

• Search nMQTT_SUB_MESSAGE_MAX constant variable and set to 580