Can PLC systems be used in tank areas with major hazard sources?

2022-03-23View Original

Thread Content

Due to the passage of time, the previous tank farm control systems used PLC control systems, and flammable and toxic gas detectors were also part of this system. It belongs to the category of major hazard sources of level 3; does it meet the current safety requirements?

Reply #22022-03-23

GBT50493-2019 Clause 3.0.8:

Reply #32022-05-10

There is no explicit prohibition against using PLCs

Reply #42022-05-26

The PLC for control is fine, but combustible gases and toxic gases should be connected to a GDS separately

Reply #52022-05-27

GDS needs to be made independent; using a PLC is no problem

Reply #62022-06-02

Not only should a PLC be used, but a SIS system should also be employed as an additional safeguard

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.

Can PLC systems be used in tank areas with major hazard sources?

Thread Content

Related Threads in This Forum

← Previous

Next →

Submit a Project

Disclaimer

Quick Links