HCBBS Forum (English)
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request

How to write logic in ifix and download it to the controller?

2007-12-18View Original

Thread Content

Where is the logic for installing the lower garments in the controller written in ifix? For example, to control motor A, this motor turns on when valve B is open. Where is such a simple logic written, and how is it downloaded to the controller? Additionally, in Emerson’s DELTAv, this logic is presented in the form of block diagrams, with each functional block shown separately; one simply selects the appropriate functional blocks and connects them together. Where can I find such functionality in IFIX? The screen configuration in deltab uses fixx; is control studio (which is used for writing logic and consists of various functional blocks) developed separately from fixx? Thank you
Reply #22007-12-20
Program in Control Studio if your system is DeltaV. The program is independent of IFIX. IFIX only displays the screen. Your request is very simple – it’s just an INTERLOCK CONDITION in the DeltaV system.
Reply #32007-12-21
Thank you very much. Let me restate my understanding: configuration includes hardware configuration and software configuration. Hardware configuration is essentially about how to connect those hardware components (I/O cards, controllers, relays, power supplies, terminal blocks, etc.) together to form an architecture. Software configuration can be further divided into screen configuration and control configuration. Tools for screen configuration, such as Ifix, are used to create user interfaces on which processes, parameters, trends, historical data, etc., can be displayed; control buttons are also available on these interfaces. Their main function is to read and display data from the database. The control configuration is primarily used to implement control strategies; in DCS systems, function blocks (whose functions have already been developed by others) are commonly utilized to connect together and carry out the desired control functions. Questions like 1# are written here; in DeltaV, the configuration of the control strategy is done in Control Studio. After that, these control strategies are downloaded to the controller, where they are executed to handle inputs and outputs and to control valves and similar devices. The screen configuration and the control configuration are independent of each other, but they are connected through a common database (using common device tag numbers). It serves as a summary and overview of my initial learning of *DCS.
Reply #42008-11-24
As far as I know, iFix is a host computer software used for the control interface, which is what you refer to as the human-machine interface. Logical operations, on the other hand, need to be handled with software specific to PLCs. In contrast, a DCS control system can complete all its software configuration using separate software – this is probably the difference between PLC control systems and DCS control systems

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.