process station. In the investment of modern automation system, due to the hardware equipment department It only takes up less cost in the whole system, then write engineering applications The cost of software becomes increasingly important. Generally speaking, a self The engineering application software cost of the automation project accounts for about the entire project.…
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Industrial” field controller PS is a special process control station, which is embedded with field bus communication interface for users to use Fieldbus technology offers very flexible options. Each PS allows to insert 4 fieldbus interface cards (the card type can be different), Each card is connected to 1 field bus to collect process data…
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Profibus is used to connect intelligent devices such as distributed I/0 stations and field bus instruments. Communication between the process station, operator station and engineering station takes place via the system bus DigiNetS (Industrial Ethernet). user Different transmission media (RJ45 twisted pair, thin, thick or fiber optic cables and mixed media) and network topology can…
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function block diagram (FBD), ladder diagram (LD), instruction list (IL), sequential function chart (SFC), structured text (ST) and other graphical configuration methods. The system contains about 220 functions Algorithm library for energy blocks and a basic library with more than 200 graphic symbols and an extended library with a large number of 3D symbols. The…
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isolation Away. And the redundant operation is realized by two redundant field controllers. Fi8i0f card is a triple can bus protocol interface card (rate 1mbd) used to connect industrial ial “conventional process control station The i/0 protection unit of the PS is used to receive process signals from the rack mounted i/0 modules supported by…
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Ethernet standard) Interface. Basic characteristics: 1ee802.3 Ethernet standard o Ei801f provides 10base2 thin cable communication interface Ei802f provides 10BASE5 thick cable connection (through AUI interface) Ei803f provides 10Base-T twisted pair communication interface 32-bit data bus, 100 mb/s DMA (direct memory access) mode main memory ram, corresponding CPU operating load <4% Optional ram backup battery Fieldbus…
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configuration and PS The user program is downloaded to the PS CPU through diginets and the first network card. After the field bus interface card is newly installed or replaced, the required group The status information will be automatically reloaded. The configuration results and real-time process data are stored in RAM, and ram is installed…
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accessories The main components of the field controller PS are described below. Basic unit pm802f The basic unit pm802f is composed of a metal rack and a CPU motherboard. It periodically scans the data from the The signals of the field bus sensors are processed according to the control application program configured by the user,…
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Fieldbus technology provides a very flexible choice. Each PS is allowed to insert 4 fieldbus interface cards (card types can be different), Each card is connected to a fieldbus to collect process data and diagnostic information from the bus. The interface card is easy to replace and plug and play (plug & play) and can…
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international standard in the world, which is divided into FMS, DP and pa Level III, DP communication rate can be up to 12MB. PROFIBUS is used to connect distributed i/0 stations, field bus instruments and other intelligent devices. The communication among process station, operator station and engineer station is realized through the system bus diginets…
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