Answer / paulskie

IP is different from IPS. The former is a standard for the protecting capability of the casing or housing of a certain equipment..i.e. a JB has an IP 65 meaning protected from dust..etc. while the latter is protection system of the whole network of instruments. It is a DCS-based.

Answer / amsal

I think it is the system to protect the instruments from ambiant harms like dust, water, humidity, temperature etc which is called INGRESS PROTECTION (IP)in now days and was called previously.Every instrument has its protection standard from its factory manufacturer according to its usage area like in open atmosphere, acidic or chemical environment or poring water area. It is the safety of electrical electronically parts of instruments.

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