Siemens-MQTT-unsecured-library

This is the offical MQTT library for PLC S7-1500, S7-1200 published by Siemens

Getting Started

MQTT is a light-weight protocol for M2M communication. This library enables Siemens'PLCs (S7-1200, S7-1500) to connect to unsecured MQTT broker.

Requirement

• PLC S7-1200 with firmware 4.0 or above, PLC S7-1500 (any firmware)
• Available MQTT broker (for test purpose, Mosquitto is a good choice)
• Internet connection (cable)

Deployment

In TIA Portal, add this library as a global library. Copy all blocks to Program blocks (of your PLC). Call the Publisher_FB in a cyclic OB (such as OB1). Edit the generated DB with your own broker information.

Note

This is only a publisher client. For subscriber function, consult this library: