Universal Modbus Client/Master SL

With the easy-to-use Modbus function blocks, values can be read and written via Modbus TCP, Modbus UDP or Modbus RTU. In addition, Modbus RTU over TCP and Modbus RTU over UDP are supported.

Without purchasing a license (just download), the Universal Modbus Client Master SL runs for 30 minutes without functional limitations (demo).

Current version
Article number

Product Description

The function blocks allow the PLC as Modbus TCP / UDC client or as Modbus RTU Master to exchange data with other devices such as energy meters, controllers or sensors. All relevant features of the Modbus protocol are implemented:

  • Supported Function codes: FC01, FC02, FC03, FC04, FC05, FC06, FC15, FC16
  • Data can be read, written or exchanged bidirectionally (with automatic change detection)
  • Automatic byte order transformation
  • All IEC data types are supported


Programming System

CODESYS Development System V3.5.8.0

Target System

CODESYS Control V3.5.8.0

Supported Platforms / Devices

Notice: Use the project ‘Device Reader’ to find out the supported features of your device. ‘Device Reader’ is available for free in the CODESYS Store.

Additional Requirements





License activation on CODESYS Runtime Key or CODESYS Soft Key (part of CODESYS Controls)

Required Accessory



Mirasoft GmbH & Co. KG

Steingraben 13
97788 Neuendorf



This product includes technical support from the original software vendor. To submit your request, please contact the vendor directly.


Mirasoft GmbH & Co. KG

Steingraben 13
97788 Neuendorf


+49 9351 9793320

Additional Downloads


Version History

Version Release Notes Release date

FC06 now supported, Possibility to swap bytes in registers, Compatibility improvements


Support of x64 systems