Central control system
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Are standard control systems generally divided into PCS, ESD, and FGS systems? I currently have a project with a small number of components, but both ESD and FGS are needed. Some people say that for economic reasons, ESD and FGS can be combined into an SIS system. Where can cost savings be achieved from separating and combining ESD and FGS systems? Is there a missing cabinet? Could some expert give me some advice?
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It needs to be separated. ESD is the emergency shutdown system, which activates at 0, while FGS is the flammable and toxic gas detection system, which activates at 1.
Expert, what are 0 action and 1 action? Thank you
It would be best if they could be separated; this is the trend of the times. In the future, experts will encounter fewer problems when conducting inspections, although the cost will be higher. (The specifications require each to be relatively independent and not affect one another.)
I remember that only safety systems and non-safety systems are relatively independent; are there also regulations requiring ESD and FGS to be independent? Where can I find this information? Thank you
Flammable and toxic substances are now referred to as GDS, while Safety Instrumented Systems are called SIS; the two must be kept separate.
It controls the logical relationships in the software configuration; the normal logic for the ESD system is such that 1 and 0 trigger interlocks； The normal logic for the FGS system is 0; 1 triggers interlocks.