3BHE003855R0001 UNS2882A Ethernet interface module
Brand ABB color standard Application Industrial height 318mm rated current 218mA
Protection Level IP45 Suitable for motor power 234KW Application Site Power Industry BOM Number GJR2391500R1220 Power industry HIEE401782R0001 Part Number UNS2882A 3BHE003855R0001
Applicable pipe 2 Whether imported is weighing 1.68 kg can be sold nationwide
3BHE003855R0001 UNS2882A Ethernet interface module
PLC is mainly composed of CPU module, input module, output module and programmer (see Figure 1), some PLC can also be equipped with special function modules, used to complete some special tasks.
1. CPU module
The CPU module is mainly composed of a microprocessor (CPU chip) and memory. In the PLC control system, the factory CPU module is equivalent to the human brain, which constantly collects the input signal, executes the user program, and refreshes the output of the system. Memory is used to store programs and data.
2.I/O module
The input (1nput) module and Output (Output) module, referred to as the I/O module, are the eyes, ears, hands and feet of the system and the bridge between the external field equipment and the CPU module.
The input module is used to receive and collect the input signal, and the switching input module is used to receive the slave button. Select switch, digital dip switch, limit switch, proximity switch, photoelectric switch, pressure relay and other incoming switch input signal; The analog input module is used to receive the continuously varying analog current and voltage signals provided by potentiometer, tachometer generator and transmitter.
The switching output module is used to control the output equipment such as contactor, solenoid valve, electromagnet, indicator light, digital display device and alarm device, and the analog output module is used to control the actuator such as regulating valve and frequency converter.
The operating voltage of the CPU module is generally 5V, while the input/output signal voltage of the PLC is generally higher, such as DC 24V and AC 220V. Peak voltage and interference noise introduced from the outside can damage components in the CPU module or make the PLC not work properly. In the I/O module, optical couplers, photoelectric thyristors, small relays and other devices to isolate the internal circuit of the PLC and the external I/O circuit, I/O module in addition to transmitting signals, there are level conversion and isolation.
3BHE003855R0001 UNS2882A Ethernet interface module
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