Realy thank you ! I was confused about this because i just learned FDS for the mechanical system and this was confused for me to translate and addapt my learned to the automation system applications. Real thank you, your explanation is like sunshine at the day.
Not really, but they are related. The FDS identifies and describes the functions that the control system needs to be able to address. It does not describe the code or specifics of how it gets implemented in the system. And FDS does not describe how the process runs, or in what order. An FDS for a mixing tank would describe functions such as: liquid feed, loss-in-weight transfer, heating, agitation, recirculation, etc. An SOP is a step-by-step guide to actually creating the batch in the mixing tank, including manual operations, which raw materials to use, what connections to make, how to set up utilities, etc.
Excellent video! Thanks! I’d like to see content from you about Model-Predictive Controllers and its comparison with others Advanced Control Strategies like Fuzzy Logic or Expert Systems. Regards!
Yes. Every company may have a slightly different list of items covered by the FDD, FDS, or FRS, but they are all essentially the same, no matter what the exact title is.
Thank you for your question. As we stated in our video, a Functional Design Specification, also known as FDS, is a document that describes how a process or a control system will operate. It does not contain any highly technical detail; it describes how the proposed system will operate, how people will interact with it, and what to expect when different operational scenarios occur. Control Narrative is a unique document that is developed by the engineering company for the control system (PLC / DCS) programming. It is developed by the Instrument and Control team and reviewed by the process team. The control narrative is a critical document and shall be stamped by professional engineer in some countries or jurisdictions. In other words, the FDS is normally part of the contract, which states what the customer expects to get for his money. The control narrative is the technical design document on how it will and must be programmed to execute the customers’ expected process. Happy learning!
@@realpars Thank you for your time and the helpful information, particularly the added clarification on which party provides what, as we are negotiating a contract with the EPC to include one of these items.
No, the FDS is written for engineers to describe the software structure and modules that need to be developed to create the application. It contains variable structures, software module names, etc., that an engineer will use to create the software code. The operator manual is written for operators, and it provides step-by-step procedures for operating the system. While these two documents are different, they should be in agreement with one another.
Hi Stanislav, Thanks for your comment! I will pass this on to our course developers - hopefully, they can show that in future video courses. Thanks for sharing and happy learning!
