Emerson KJ3201X1-BA1 Controller Emerson, 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. The brands involved in the products include: Eurotherm, Schneider, Siemens, ABB, SICK, P+F, E+H, Yokogawa, Yamakawa, Omron, Mitsubishi, Emerson, Honeywell, FANUC, GE, Eaton Electrical, CT. 1. Types of PLC
PLCs are divided into two types by structure: integrated and modular; by usage environment into field installation and control room installation; by CPU word length into 1-bit, 4-bit, 8-bit, 16-bit, 32-bit, 64-bit, etc. From a usage perspective, selection can generally be based on control function or the number of input/output points. Integrated PLCs have fixed I/O points, thus offering users limited choices, and are used for small control systems; modular PLCs provide various I/O cards or plug-in cards, allowing users to reasonably select and configure the I/O points of the control system, with convenient and flexible function expansion, generally used for medium to large control systems.
2. Selection of Input and Output Modules
Emerson KJ3201X1-BA1 Controller Emerson The selection of input and output modules should consider consistency with application requirements. For example, for input modules, consider signal level, signal transmission distance, signal isolation, signal power supply method, and other application requirements. For output modules, consider the type of output module selected. Generally, relay output modules have characteristics such as low price, wide usage voltage range, short lifespan, and longer response time; thyristor output modules are suitable for frequently switching, inductive low power factor load occasions, but are more expensive and have poor overload capacity. Output modules also include DC output, AC output, and analog output, which should be consistent with application requirements. According to application requirements, intelligent input and output modules can be reasonably selected to improve control levels and reduce application costs. Consider whether there is a need for expansion racks or remote I/O racks.
3. Selection of Power Supply
For the power supply of PLCs, except when introducing equipment along with the PLC, which should be designed and selected according to the product manual requirements, generally the power supply for PLCs should be designed and selected as 220VAC power supply, consistent with the domestic grid voltage.