Which system is more stable, pure DCS or PLC+DCS?

2008-02-16View Original

Thread Content

Our company has changed the control system of the air separation compressors from a purely DCS-based system to one that utilizes both DCS and PLCs for control. I was wondering if anyone with experience in this area could provide some insights, or perhaps explain the advantages of using PLCs?

Reply #22008-02-16

Generally speaking, in such designs, DCS is used for control and display, while PLCs are more commonly used in interlock systems.

Reply #32008-02-16

Personally, I think the latter is more stable and more open in terms of programming.

Reply #42008-02-16

DCS is only for data acquisition and display; front-end control is still handled by PLC. So what needs to be changed?

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.

Which system is more stable, pure DCS or PLC+DCS?

Thread Content

Related Threads in This Forum

← Previous

Next →

Submit a Project

Disclaimer

Quick Links