KUC711AE101 3BHB004661R0101 Central Processing Unit (CPU)
Brand ABB color Standard Application Industrial height 281mm rated current 270mA
Protection Level IP45 Suitable for motor power 188KW Application Site Power Industry BOM Number GJR2391500R1220 Power industry HIEE401782R0001 Part Number KUC711AE101 3BHB004661R0101
Applicable pipe 2 Whether imported is weighing 2.16 kg can be sold nationwide
KUC711AE101 3BHB004661R0101 Central Processing Unit (CPU)
Switch the operating mode switch from the STOP position to the MRES position and hold it for at least 3 seconds until the red “STOP” light-emitting diode begins to flash slowly. Release the switch and turn the switch again to the MRES position within a maximum of 3 seconds. When the STOP LED blinks quickly, the CPU is reset. If the STOP LED does not flash, repeat this procedure.
The method of resetting the memory is to switch the operation mode from the STOP position to the MRES position, and the STOP LED is off for 1s, on for 1s, and then on for 1s. Let go of the switch and bring it back
In the STOP position, turn the switch back to MRES within 3s, and the STOP LED flashes at a frequency of 2Hz for at least 3s, indicating that it is being reset. Finally, the STOP LED is always on, and the mode switch can be loosened.
Step Reset the CPU memory
1. Turn the key to the STOP position.
2. Turn the key to the MRES position and keep it there until the STOP LED lights up for a second time and stays on (3 seconds). Now release the key.
3. You must turn the key to the MRES position again within 3 seconds and hold it still until the STOP LED flashes (frequency is 2 Hz). Now release the switch. After the CPU completes the memory reset, the STOP LED will stop flashing and always light up. The CPU has reset the memory. Procedure
Use the following steps to format the MMC
If the CPU requests a memory reset (STOP LED slowly blinking), the MMC can be formatted by setting the selector switch as follows:
1. Switch the switch to the MRES position and hold it until the STOP LED lights up and stays lit (after about 9 seconds).
2. Within the next three seconds, release the switch and switch it to the MRES position again. STOP The LED blinks, indicating that formatting is in progress.
plc is essentially a computer dedicated to industrial control, and its hardware structure is basically the same as that of a microcomputer.
a. Central Processing Unit (CPU)
The central processing unit (CPU) is the control center of the PLC. It receives and stores the user programs and data entered from the programmer according to the function given by the PLC system program; Check the status of power supply, memory, I/O, and alarm timers, and diagnose syntax errors in user programs. When the PLC is put into operation, it first receives the status and data of each input device in the field by scanning, and stores them into the I/O image area, and then reads the user program one by one from the user program memory, and sends the results of logic or arithmetic operations into the I/O image area or data register after command interpretation according to the instructions. After all the user programs are executed, the data in each output state or output register in the I/O image area is finally transmitted to the corresponding output device, and so the cycle runs until it stops running.
In order to further improve the reliability of PLC, in recent years, dual cpus have been used to form redundant systems for large PLCS, or three-CPU voting systems have been adopted. In this way, even if one CPU fails, the whole system can still run normally.
b, memory
The memory that stores the system software is called the system program memory.
The memory in which application software is stored is called user program memory.
C, power supply
The power supply of PLC plays a very important role in the whole system. If there is not a good, accessible power system is not able to work properly, so PLC manufacturers also attach great importance to the design and manufacture of power supplies. The general AC voltage fluctuation is within the range of +10%(+15%), and the PLC can be directly connected to the AC power grid without taking other measures.
KUC711AE101 3BHB004661R0101 Central Processing Unit (CPU)
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