IS215UVEH2AE
IS215UVEH2AE
IS215UVEH2AE
In 1968, America’s biggest carmaker, general motors (GM) in order to adapt to the need of production technology constantly updated, ask for a more reliable than a relay, and the function is more complete, the response
speed faster new industrial controller, and puts forward a new generation of controller from the perspective of the user should have ten conditions, immediately caused a development boom. The main contents are: (1) convenient programming, can modify the program on site; (2) Convenient maintenance, using plug-in structure; The
reliability is higher than the relay control device; ④ the volume is less than the relay control panel; Data can be directly sent to the management computer; The cost can compete with the relay control panel; ⑦ input can be mains; The output can be mains, capacity requirements above 2A, can directly drive the contactor, etc.; ⑨ The original system changes the least when scaling; ⑩ User memory greater than 4KB. In fact, these conditions put forward the idea of combining the advantages of simple, easy to use and low price of relay control with the
advantages of perfect function, flexibility and universality of computer, and transforming the hard-wired logic of relay contacter control into the software logic programming
