3500/22M 288055-01 Applying digital communication program

Control main program of 3500/22M 288055-01 The main control program of the software is based on the program prepared according to the technological requirements, which automatically detects the data inputted by each switch and sensor after the power is turned on, and completes the automatic control of the whole spinning process and calls the subroutine. It is mainly based on the 3500/22M 288055-01 configuration to complete the parameter setting display, including shift setting, error setting prompts, total output, shift output cumulative display, spindle speed, front roller speed, haul-off multiplier, twist, output, yarn number and other parameter display. Parameter setting menu program structure

3500/22M 288055-01 Calculation and sampling program Mainly based on the sampling results of spindle, front roller, back roller data detection sensor and design parameters to complete the system calculation, used to complete the calculation of various types of display parameters and set the length of the yarn drop and other functions. The free port communication protocol is used to complete the data transmission with the inverter. Communication settings free-port communication control register is set to free-port communication mode, the program receives interrupts and sends interrupts and sends commands XMT to control the operation of the communication port, in the free-port communication mode communication mode is controlled by the program ladder diagram. The communication settings also define the baud rate, checksum method and data length. In order to smooth the spindle running curve. A mathematical construction method is used to fit the sending parameters between the set points.

The most important feature of 3500/22M 288055-01 is the application of digital communication to complete the data transmission between TP27 and PLC and PLC and frequency converter. the PLC’s Prt0 port is connected to TP27 to complete the parameter setting and displaying by PPI protocol communication, and the Port1 port is connected to frequency converter to complete the control of ingot running curve by free port protocol communication, which is the only way to control the ingot speed curve when we did it before. Previously, we can only use analog to control the inverter when controlling the spindle speed curve, which has high hardware cost and low control accuracy. After adopting digital communication, the hardware is only a shielded wire, the anti-interference ability is enhanced, which provides conditions for realizing the network transmission of control parameters and reduces the cost of control; the high precision, high reliability and low cost of digital communication greatly improves the performance ratio of the machine and the ability of market competition.