8440-1713 D Digital interface isolation transceiver

8440-1713 D

Technical Parameters:

  • High-performance CPU with 50Mb memory, fast scan time
  • Industry-leading 7 communications ports, including built-in local expansion and Ethernet remote I/O ports are standard on the CPU
  • USB Programming and USB Data Logging are resident on the CPU
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Simon Zhang
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8440-1713 D Digital interface isolation transceiver

8440-1713 D supports Ethernet PLC and touch screen, USB interface PLC and touch screen and serial port touch screen, as well as inverter, servo, and a variety of instrumentation on the remote download program monitoring, remote debugging, support for Siemens, Mitsubishi, Omron, Panasonic, Schneider, Genesys, Beefeater, Delta, Yonghong, Anchor, Hueichuan, Xintet and so on a variety of PLC.

8440-1713 D to realize the independent control of key components, Jin Sheng Yang as early as 2002 proposed the integration of chip IC, power isolation, signal isolation system, and in more than a decade the 485/CAN digital interface isolation transceiver products from the R1 generation upgraded to the R2 generation, the R2S generation, although the performance can be comparable with the products of the international mainstream manufacturers or even beyond, but the previous generation of products with high cost, Although the performance can be comparable with or even surpass the international mainstream manufacturers’ products, the former products’ high cost, large board area, and inability to be compatible with the international mainstream products Pin-to-Pin have not been able to improve the persistent problems.

8440-1713 D track circuit system is a kind of electrified harmonic interference frequency shifting track circuit, its carrier frequency is divided into four kinds of 1700Hz, 2000Hz, 2300Hz, 2600Hz, two adjacent track circuits between the use of electrical separation joints, to achieve the electrical isolation of the track seam without mechanical insulation. This track circuit utilizes the LC resonant groove road connected in parallel at both ends of the rail and a small section of rail inductance constituting an electrically insulated joint to separate adjacent segments, each segment sending a different frequency. It not only detects trains, but also sends speed level information (a total of 18 types of TBF low-frequency modulation information) from the rail circuit to the train control on-board system (ATP).