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Introduction to the development of DDZ-Ⅰ, Ⅱ, and Ⅲ instruments

2007-12-24View Original

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The development of integrated control panels in our country can be divided into four stages: the DDZ-Ⅰ type integrated control panels based on electron tubes in the 1960s; the DDZ-Ⅱ type integrated control panels based on transistors in the 1970s; the DDZ-Ⅲ type integrated control panels based on integrated circuits in the 1980s; and after the 1990s, with the widespread use of microcontrollers and single-board computers, intelligent integrated control panels centered around these devices came into existence.
Reply #22007-12-24
Regarding DDZ, it is now rarely used in the power industry. New power plants built after 2000 almost no longer use DDZ unit combinations
Reply #32007-12-31
Hehe, the information is way too old – the DDZ-III model has been discontinued for a long time; it has a high failure rate and is difficult to maintain, making it much more troublesome than today’s digital displays and DCS systems
Reply #42007-12-31
Conventional control is only used in equipment and small units; nowadays it is the era of DCS, FCS, and PLC.
Reply #52007-12-31
It seems that it’s rare to find all these things in the market
Reply #62008-01-01
I learned something new, hehe:lol :lol
Reply #72008-01-02
Isn’t it a bit too simple? Is there anything more specific? ?

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