125840-01 Applied Digital Control Systems

125840-01

Technical Parameters：

  • Full lineup of 36 discrete, analog and specialty PAC I/O modules
  • Local, Expansion and Remote I/O bases, up to 115,000+ I/O points
  • Auto-discover local and remote PAC bases, I/O and GS drives
  • Hot-swappable I/O, No module placement restrictions, No power budget limitations
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Description

125840-01 Applied Digital Control Systems

125840-01 is a kernel chipset loaded with embedded PLC system software. As a hardware platform loaded with system software, it can be used to design general-purpose and specialized PLCs.
1) Basic performance of the chipset:
① Power supply: +5V 200mA, RAM power-down protection for 5 years.
② CPU: C8051F040.
③ Embedded expansion capability
●32 I/O: can be multiplexed into SPI, I2C interface and external interrupt, external counting, AD and so on.
●4 AD: 12-bit precision, 100 KPS.
●2 DA: 12-bit precision, 100 KPS.

The 125840-01 uses the free port communication protocol to complete data transmission with the inverter. Communication Settings The free-port communication control register is set to the free-port communication mode, and the program controls the operation of the communication port by receiving interrupts and issuing interrupts as well as sending the command XMT, and the communication mode is controlled by the program ladder in the free-port communication mode. 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 biggest feature of 125840-01 control system is that it applies digital communication to complete the data transmission between TP27 and PLC as well as between PLC and frequency converter.PLC’s Prt0 port is connected with TP27 to complete the parameter setting and displaying with the PPI protocol, and Port1 port is connected with frequency converter to complete the control of ingot running curve with the free port protocol, which is the only option for the control of ingot speed curve in the past. Previously, we can only use analog quantity to control the inverter when we control the curve of spindle speed, so the hardware cost is high and the control precision is low. After adopting digital communication, the hardware is only a shielded wire, anti-interference ability is enhanced, which provides conditions for realizing network transmission of control parameters and reduces the control cost.

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