SIS discussion
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As safety regulations become increasingly strict, parks are placing higher demands on SIS systems. This presents new challenges for factories that traditionally rely only on DCS systems. Which SIS manufacturers have you used? What’s the price? Everyone is welcome to discuss further in the comments. It’s best to include the specific model when discussing it.
Let me start by saying: The Zhejiang Zhongkong TCS900 has a reasonable price.
There are also those from Honeywell, as well as foreign brands such as Conixen, Black Horse, Rockwell, Emerson, and so on
Hardware setup and configuration are one aspect. On the other hand, lack of attention or inadequate use and maintenance often lead to unavailability or damage.
Your topic is about having a discussion, isn’t it? Since we’re discussing it, let’s go deep. Is it useful to only mention the surface-level brand, model, and price at the technical level?
Generally speaking, it is recommended that the SIS brand be the same as that of the DCS, as this improves system integration. If the goal is merely to meet the requirements outlined in Document No. 116 and cost remains a concern, then domestic SIS systems (such as those from HILIC and Zhejiang University Control System) can be used. During the renovation process, it is advisable to consider transferring the combustible signal systems away from the DCS, so that they operate independently of it, thereby avoiding the need for further modifications
Well said, but these days many manufacturers integrate their GDS systems with DCS systems, and there are no clear requirements in Jiangsu for having a separate control system.
However, Document No. 116 clearly stipulates independence from the DCS control system, and it is likely that mandatory corrective actions will be required in the future
Document No. 116 has been in place for many years; it was only starting to be implemented in 2018.