MQTT

MQTT, or Message Queuing Telemetry Transport, is a lightweight and efficient messaging protocol designed for machine-to-machine communication, particularly in the context of the Internet of Things (IoT) and Industrial IoT (IIoT). It operates on the publish/subscribe (Pub/Sub) model, where devices, sensors, and industrial PLCs communicate by publishing messages to specific topics and subscribing to receive messages from those topics. The communication is facilitated through an MQTT broker, which acts as an intermediary, ensuring that messages are correctly distributed to subscribing devices. MQTT is characterized by its lightweight nature, scalability, reliability, security features, and broad industry support, making it a de facto standard for IoT messaging. It enables efficient transmission of data even in resource-constrained environments, with support for various quality-of-service levels and secure authentication protocols.

CoreTigo’s products, such as the TigoMaster 2TH and TigoGateway 1TE, play a crucial role in implementing IIoT by leveraging MQTT among other Industrial Ethernet protocols. These devices support IO-Link Wireless connectivity, enabling real-time communication in challenging industrial environments. The TigoMaster 2TH connects directly to both the PLC and IT network, supporting multiple Industrial Ethernet protocols and facilitating applications like machine retrofit, predictive maintenance, intelligent machine tooling, and wireless end-of-arm tooling for robots. The TigoGateway 1TE, with Edge Computing functionality, supports up to 8 IO-Link Wireless Devices simultaneously, providing reliable and secure communication in industrial settings. CoreTigo’s software, TigoEngine, further enhances the setup and management of IO-Link Wireless systems, enabling the secure publishing of process data via MQTT to cloud-based and on-premise applications.