Setup and testing is easier during Modbus device development
Schneider Electric has developed an FDT2 version of its Modbus Universal DTM. This DTM helps test any Modbus device during development. It provides an easy way to verify a device implementation in an early stage of the development phase. The DTM allows the user to send Modbus commands to a device and provides the corresponding response data. It can communicate with devices connected on Modbus serial line or Modbus TCP. The list below shows all the standard Modbus services which can be executed by the DTM as well as available proprietary services. All the services can be performed cyclically within user-defined periods of up to 10.0 milliseconds.
Standard Supported Modbus Services:
01 - 0x01 Read Coils
02 - 0x02 Read Inputs
03 - 0x03 Read Holding Registers
04 - 0x04 Read Input Register
05 - 0x05 Write Single Coil
06 - 0x06 Write Single Register
07 - 0x07 read Exception Status (Serial Line only)
Support of Confirmed/Unconfirmed Proprietary Request
For specific applications, the FDT2 Universal Modbus Device DTM supports the creation and transmission of proprietary requests. These requests can be either sent as unconfirmed requests (no Modbus response) or as confirmed requests with a private Modbus response.
The Universal Modbus FDT2 Device DTM can be used in any standard FDT2 Frame Application either with an FDT 1.2 Modbus Communication DTM or with an FDT2 Modbus Communication DTM.
FDT Group members can get this FDT2 Modbus Test DTM free from Schneider Electric for their internal tests. For more information, please contact Manfred Brill at [email protected].
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