Calta Computer, manufacturer of Mdbus (Modbus for Windows)

Calta Computer Systems



Our company was incorporated in April 1981. Initially Calta provided custom solutions to a wide range of data communications applications. From these applications emerged a common set of requirements leading to the development of the product family described below. Today our focus is the supply of our standard products augmented by custom additions where dictated by unique customer requirements.


  • MDBUS for Windows

    Mdbus is a software package running under Windows that provides an interface to devices utilizing MODBUS protocol.

  • Note! - A time limited fully functional demo copy is available.
    Click here to request a copy.

    Order - Standard Mdbus $180 USD, Standard+OPC Mdbus $230 USD
    To Order


    Occasionally our standard product offerings do not meet a unique customer requirement. These unique applications can usually be serviced by incorporating the required special features into our standard product. Please contact us with your unique communications requirements.

    • We have used both custom and standard communication drivers in conjunction with Microsoft Access and Microsoft Excel to produce custom Operator Interfaces. These packages produce a very cost effective interface for many applications.

    Send E-Mail to Calta Computer Systems (

    We can be contacted as follows:
    Calta Computer Systems               email:
    452 Oakwood Place SW    
    Calgary, Alberta, Canada             Attention: Lorne Schneider, P. Eng.
    T2V 1R6                                         Sydney Deitch, P. Eng.