The Secure Integration Server (SIS) from Softing Industrial offers a structured solution for complex server architectures. It combines various OPC UA servers at the automation level with their associated address spaces. This enables a standardized mapping of these address spaces in accordance with the OPC UA Companion Specification. The data provided in this way is then available for IoT cloud applications via a standardized OPC UA interface. The latest version of the SIS, V1.30 integrates the MQTT protocol (versions 3 and 5), making data integration more secure and flexible. The most significant benefits include MQTT publisher and subscriber which enables bi-directional data traffic for efficient communication, MQTT authentication settings that ensure security and identification, the ability to handle up to 25 MQTT connections, MQTT store-and-forward function to protect against data loss, various publishing modes and a "Dynamic Payload" feature to guarantee high flexibility for different data requirements.
