PD8, Interface Converter RS-485/ETHERNET

Item number: PD8ff

  • Enables the access to devices with RS-485 interfaces for master devices and SCADA applications through the Ethernet network
  • Device configuration through any web browser
  • Different working modes:
    †††††††††† - TCP/IP socket,
    †††††††††† - MODBUS TCP,
    †††††††††† - RealPort network service (resources connected to the computer, visible through the virtual port COM in the master computer),†
    †††††††††††- UDP serial bridge (enables the connection of many parts of the MODBUS network in one whole connected through the ETHERNET network)
  • Configuration through USB port
  • Password protection
  • DIN rail mounting
  • 3 years warranty
  • Category: RS-485/MODBUS Components

    Supply Voltage

    Price on application

    Exp. shipping time: ca. 1-2 weeks

    There are variations of this item. Please select the variation you wish.


    PD8, Interface Converter RS-485/ETHERNET

    The RS-485/ETHERNET converter PD8 from LUMEL†allows master devices to transmit data via an ETHERNET network to the devices with RS-232 and RS-485 interface.

    The converter has three operating modes:
    ††† + RealPort network service,
    ††† + serial bridge service with the UDP protocol and
    ††† + TCP/IP Socket service.

    In the first and third mode, the switching master device of the system is a PC using ETHERNET interface. In the second mode, the converter works with a device with Master function and RS-232 and RS-485 serial interfaces.

    The converter PD8 to work with RealPort network service requires the installation of a virtual serial port driver on a PC with Microsoft Windows. Thanks to the PD8 type converters, this driver provides the existing master systems, i.e. programs like LUMEL Heat and LUMEL Process, the ability to transmit data between devices with RS-485 or RS-232 interface using ETHERNET network When used in this way, the converter allows to work with one master computer in the given time. When using PD8 to support MODBUS and LUMBUS industrial protocols - its correct interaction with master systems installed on a PC depends on the built-in mechanisms to control time intervals between the received transmission characters.

    Using PD8 in the second mode, the RS-485 bus can be expanded with successive segments using additional PD8 converters and ETHERNET local network. Properly configured, one pair of converters allows to build a system working in the serial bridge mode. It is also possible to configure their operation in ?one-to-several? mode (as a set including up to 65 converters). Function 2 of the converter operates in the ETHERNET local network with UDP datagram protocol support.

    Operation in the third mode†is very similar to the converter working with RealPort network service except that it is not required to install software virtual serial port driver on a PC with Windows. Communication between a PC and PD8 converter is via TCP Socket mechanism.

    Technical data:
    Interfaces: RS-485, ETHERNET, USB
    Supply voltage: 85-253VAC/DC or 20-50VAC/DC (please select when ordering!)
    Status and data flow indicators: 5 LEDs: supply, RxD, TxD, ACT, LNK
    Dimensions: 45 x 120 x 100mm≥
    Weight: 200g
    Housing protection: IP30 (front), IP20 (terminals)
    Mounting: DIN rail
    Warranty: 3 years

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