IS200BPIAG1A IS200BPIAG1A IS200BPIAG1A the upper Intranet and Internet information network. Therefore, the distributed control system from this point of view is essentially a closed and special, not interoperable distributed control system and DCS cost is expensive. In this case, the users of the network control system to open and reduce the cost of urgent requirements.…
IS200BPIAG1A IS200BPIAG1A IS200BPIAG1A efficiency and reliability of the controller will decline sharply. 3. Distributed control system (DCS) : Distributed control system (DCS) dominated in the 1980s and 1990s. Its core idea is centralized management, decentralized control, that is, management and control are separated, the upper computer is used for centralized monitoring management function, a number…
IS215VPROH2BC IS215VPROH2BC IS215VPROH2BC input/output. The programmable controller and its related peripherals are designed in accordance with the principle of easy integration of industrial systems and easy expansion of their functions. This definition emphasizes that a programmable controller is an “electronic system for the operation of numerical arithmetic”, that is, it is also a computer. It…
ISTVIBH2BCC ISTVIBH2BCC ISTVIBH2BCC emphasized that the programmable controller is qualitatively different from the drum and mechanical sequential controller described in the past. Due to the introduction of a new generation of electronic devices such as microprocessor and semiconductor memory, PLC and the specified instructions for programming, can be modified flexibly, that is to use software…
IS215VCMIH2CC IS215VCMIH2CC IS215VCMIH2CC characteristics. In 1980, the Electrical Manufacturers Association of America (NEMA) gave him a new Programmable Controller, or PC. In 1982, the International Electrotechnical Commission (IEC) specifically for programmable controller under the strict definition. However, PC this abbreviation name has already become a synonym of Personal Computer (Personal Computer) in China, in order…
IS215VCMIH2BB IS215VCMIH2BB IS215VCMIH2BB computer. In 1969, the United States Digital Equipment Company (DEC company) developed the first programmable controller PDP-14, in the United States General Motors Company on the production line trial success, and achieved satisfactory results, programmable controller was born. Since the advent of programmable controller, the development of extremely rapid. In 1971, programmable…
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…
IS215UCVEH2AE IS215UCVEH2AE IS215UCVEH2AE matching compiler, final reoccupy special machine (read-write) special one-on-one to send the PLC program, during the system debugging, and debugging cost a huge increase in debugging time, And extremely detrimental to future maintenance. The control accuracy is far from the same. This determines why in large and medium-sized control projects (more than…
IS215UCVEH2A IS215UCVEH2A IS215UCVEH2A program after installation is a close association between any station, any function, any controlled device is interlocking control, coordination control; And the single use of PLC connected with each other constitute the system, the station and station (PLC and PLC) between the connection is a loose connection, is not a coordinated control…
IS215ACLEH1B IS215ACLEH1B IS215ACLEH1B customer used a large motor on site, up to hundreds of kilowatts, when contacted by phone, I confirmed that the motor carbon brush did not ignite, and the fault machine had been in use, after the fault occurred, no matter light load or heavy load, armature current fluctuated greatly. 1 DCS is…