HollySys FM1303 Base Module Controller, Shanghai Sijian Intelligent Technology Co., Ltd. is engaged in technical development, technical consultation, technical transfer in the fields of intelligent technology, information technology, and automation technology, as well as the sales of electrical equipment, automation equipment, electronic products, communication products, and electromechanical products. Industrial automation products: PLC, DCS, sensors, frequency converters, encoders, relays, servo drives, soft starters, touch screens. Brands involved in the products include: Eurotherm, Schneider, Siemens, ABB, SICK, P+F, E+H, Yokogawa, Yamakawa, Mitsubishi, Emerson, Honeywell, FANUC, GE, Eaton Electrical, CT
Preparation of technical documentation system Technical documents include manuals, electrical schematic diagrams, electrical layout diagrams, electrical component lists, and PLC ladder diagrams.
PLC hardware system design Selection of PLC model, before making a decision on the system control scheme, it is necessary to understand the control requirements of the controlled object in detail to determine whether to use PLC for control.
HollySys FM1303 Base Module Controller, in cases where the logical relationships of the control system are complex (requiring a large number of intermediate relays, time relays, counters, etc.), the process flow and product modifications are frequent, data processing and information management are required (including data operations, analog control, PID regulation, etc.), the system requires high reliability and stability, and factory automation networking is planned, the use of PLC control is very necessary. Currently, numerous manufacturers at home and abroad provide a variety of PLC products with different series and functions, leaving users dazzled and at a loss. Therefore, weighing the pros and cons and reasonably selecting the model can achieve an economical and practical purpose. Generally, the selection of the model should be based on meeting the system functional requirements as the principle, avoiding blind pursuit of larger and more comprehensive systems to prevent waste of equipment and resources. The selection of the model can be considered from the following aspects. The control field of microinstructions will be greatly shortened. Some micro-operation commands that need to be generated simultaneously cannot be arranged in the same field. To further shorten the control field, field decoding can be designed into two or more levels.
Input and output interfaces are the interface circuits through which the PLC connects to industrial field control or detection components and execution components. The input interfaces of PLC include DC input, AC input, AC/DC input, etc.; output interfaces include transistor output, thyristor output, and relay output, etc. Transistor and thyristor outputs are contactless output circuits, with transistor output used for high-frequency low-power loads and thyristor output for high-frequency high-power loads; relay output is a contact output circuit used for low-frequency loads.