UModbus

UModbus - .NET library for working with devices via the Modbus protocol, as well as a Modbus client tool based on it.

UModbus.Client library

Capabilities:

• Modbus full implementation. All standard functions of the Modbus protocol are implemented, as well as the ability to execute user requests (functions designed by the device manufacturer).
• Support for all transport level options for Modbus: RTU, ASCII, TCP, UDP.
• Keeping a log of data exchange with a remote device.

UModbus client tool

Capabilities:

• Supported functions:
  • FC01 - READ_COIL_STATUS - reading one/several coils
  • FC02 - READ_DISCRETE_INPUTS - reading one/several inputs
  • FC03 - READ_HOLDING_REGISTERS - reading one/multiple holding registers
  • FC04 - READ_INPUT_REGISTERS - reading one/multiple input registers
  • FC05 - WRITE_SINGLE_COIL - writing value of one value coil
  • FC16 - WRITE_MULTIPLE_REGISTER - writing values to multiple holding registers
  • FCxx - Device manufacturer-defined function with a code from the Modbus protocol user function range.
• Support for all major data types:
  • Int16
  • Uint16
  • Int32
  • Uint32
  • Int64
  • Uint64
  • Float32 (float)
  • Float64 (double)
• Selection of byte order for variables longer than a 16-bit word
• Save data-map to *.json file
• Load data-map from *.json file
• Logging
• Cycle read
• Search for a slave device on a common bus