Open Industry 4.0 Simulation
The latest versions of Prosys OPC UA Simulation Server and Prosys OPC UA Browser enable OPC UA PubSub Simulation and Monitoring. Since the Guideline for Open Edge Computation (OEC) published by the Open Industry 4.0 Alliance suggests OPC UA PubSub over MQTT and defines how to deliver OPC UA Device Information over it, it became also very natural to add a simulation of OEC into Prosys OPC UA Simulation Server.
Prosys OPC UA Simulation Server with Device Simulation
We have added a basic Device Simulation into the Simulation Server. This enables manually defining data for a simulated device, including Vendor Nameplate and Device Health information, as defined by the OPC 10000-100 Devices Specification.
Guideline for Open Edge Computing
The Open Industry 4.0 Guideline for Open Edge Computing (OEC) defines how to use OPC UA PubSub over MQTT as a Message Bus.
It also defines a few message types with common contents to publish to the Message Bus.
Please, check out the article about OPC UA and Open Industry 4.0 to get more details about the OEC and these message types.
In order to simulate the OEC message types, the Simulation Server defines a specific Publisher with an MQTT connection to the OEC Message Bus.
The first version of the simulation includes the message types for
- Master Asset Model (mam) message, which corresponds to the Vendor Nameplate defined for the Simulated Device and
- Device Health (health) message, which corresponds to the Device Health defined for the Simulated Device.
The message types are implemented internally by the respective OPC UA PubSub DataSets and DataSetWriters in the OPC UA PubSub Configuration. This enables publishing the messages to the MQTT Broker periodically. OEC defines a few additional fields to the MQTT messages, but apart from that, they are just standard OPC UA PubSub messages.
Subscribing to the OI4 Information with UA Browser
The OEC defines that all OTConnectors that publish data from the devices to the Message Bus, should publish to topics under the ‘oi4’ Topic Tree. Since the messages follow the OPC UA PubSub definitions, we can use the standard Prosys OPC UA Browser to monitor them via the new PubSub View. You just need to connect to the same MQTT Broker as Simulation Server and use the ‘oi4/#’ Topic Filter, to see the messages like this:
Chief Technology Officer
Expertise and responsibility areas: OPC & OPC UA product development, project work and customer support
About Prosys OPC Ltd
Prosys OPC is a leading provider of professional OPC software and services with over 20 years of experience in the field. OPC and OPC UA (Unified Architecture) are communications standards used especially by industrial and high-tech companies.
Newest blog posts
Detailed overview of the demo presented at the OPC Foundation booth
A two-part step-by-step tutorial on how to write data changes on an OPC UA server using an OPC UA client.
Industry 4.0 analytics projects are going to be Significantly rising business in the next couple of years. Read how to bypass the most common cavepits and delivery projects succesfully.