K120S series PLC product is a unit PLC product introduced to the market by LS in 2004, which has laid a solid foundation in the low-end small machinery supporting industry with its high-performance price ratio. Relying on some special functions of the product, it has also won some industry praise.
1. Fundamental structure
Economical: 10/14/20/30 point master unit, program capacity 2K, expandable up to 70 points (expandable with 2 expansion modules)
Standard: 20/30/40/60 point master unit, program capacity 10K, expandable up to 120 points (expandable with 3 expansion modules)
Advanced type: The output is basically the same as the standard type, the output is a transistor/relay hybrid output, and the high-speed output of the first 4-point transistor can be connected to a 2-axis servo controller for simple azimuth control function.
2. CPU, fast operation speed 0.1μs/step, no floating point operation, built-in 3-channel communication function, 8-loop PID control, 4-channel 100KHZ high-speed counting function, 2-channel 100KPPS high-speed pulse output.
3. There is no need for battery backup program, the user program is saved in EEPROM, and the data is saved through the supercapacitor (2000 hours at room temperature).
4. HSC function
Single-phase: 100KHZ 2 channels, 20KHZ 2 channels A total of 4 channels for high-speed counting
Duplex: 50KHZ 1 channel, 10KHZ 1 channel A total of 2 channels high speed counting
It has functions such as cycle counting, comparison output, PRM, latching, and presetting.
5. Orientation control function (DRT type products)
2-axis 100KPPS high-speed pulse output function, no differential compensation function, with origin return, inch operation, speed operation, PWM pulse width modulation output, 20 steps of data can be controlled sequentially.
6. Abundant communication function
The 3-channel communication function does not need to be connected to the expansion communication module, and the main unit has a built-in LOADER programming port/RS232C/RS485 These three communication channels, together with the MODBUS function can be used to connect the long-distance station to establish a bus network. The extension module can be used as a slave device for PROFIBUS/DEVICENET.
7. The main unit has a built-in 8-loop unidirectional PID control function, and the self-tuning operation of PID parameters and the realization of PID control can be carried out through the program.
8. an expansion module
A variety of switch/analog expansion modules are available, 4-channel analog potentiometers, 4-channel RTD input modules.
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