{"id":1251,"date":"2017-10-18T15:59:49","date_gmt":"2017-10-18T13:59:49","guid":{"rendered":"https:\/\/staging.blogs.yokogawa.de\/chemical-pharma\/uncategorized\/process-orchestration-for-modular-production\/"},"modified":"2022-06-17T09:28:07","modified_gmt":"2022-06-17T07:28:07","slug":"process-orchestration-for-modular-production","status":"publish","type":"post","link":"https:\/\/www.yokogawa.com\/eu\/blog\/chemical-pharma\/en\/process-orchestration-for-modular-production\/","title":{"rendered":"Process Orchestration for Modular Production"},"content":{"rendered":"

After Hannover Messe 2017<\/a>, NAMUR\/ZVEI working groups for NAMUR MTP<\/a> have been active and have worked on the State-based control concept for Process Orchestration. Or some would like to call it Process Co-ordination. In my earlier posts, we discussed in detail about the Modular Production<\/a> concept and how NAMUR MTP will be key in realizing this. We also discussed the status of the NAMUR MTP<\/a> working groups and have discussed the demonstrations during Hannover Messe.<\/p>\n

But what is State-Based Control?<\/h2>\n

State-based control follows principles similar to Service-oriented architecture (SOA) from software design. A service is defined as a discrete unit of functionality<\/em> that can be accessed, acted upon or updated to. The software industry has already achieved standards on this topic. And there also exists other working groups from The Open Group<\/a>. Nevertheless, State-Based Control topic we are working on, as part of NAMUR MTP, is an adaptation for process industries. <\/p>\n

Modular Automation<\/h2>\n

In relation to modular automation, a service can be defined as a discrete unit of process functions provided by a module or a subset of a module<\/em> which can be accessed, acted upon or update to. To explain, a tank module which has its own process functions filling, emptying and heating will have<\/p>\n

1) one service for each of its process functions, and<\/p>\n

2) one service as a superset of all three services to monitor these three services and their dependencies.<\/p>\n

Process orchestration<\/h2>\n

Now that the services are defined and established, how can the orchestration system access the information from the services? To make the information model behind each service standard, each service shall support a state machine. This state machine will be defined by the NAMUR<\/a>\/ZVEI<\/a> working group for the NAMUR MTP concept. Which means the orchestration system can read MTP files.  From this MTP file, it knows all the services (process functions), which the module provides and which states each service supports, in order to coordinate the production.<\/p>\n

To summarize, a service in accordance with Modular Production is a unit of process functionality that can be<\/p>\n