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Modbus Constructor is supported as usual. Happy new year!
Modbus Constructor 1.9 Released. "Black fields" bug fixed. Trial period renewed.
Modbus Constructor 1.7 is compatible with Windows 10.
Modbus Reader 1.6.2 released.
Modbus Constructor 1.6.0 and Modbus Reader 1.6.0 released.
Modbus Reader 1.3.0 Released.
Modbus Constructor 1.1.12 Released. Some minor bugs fixed. Trial period renewed.
Modbus Constructor 1.1.11 Released. Trial period renewed.
Modbus Reader 1.2.14 Released. Some minor bugs fixed.
A prerelease of the version 1.2 of Modbus Reader is now available. Data logging capability is added for a single device as well as for multiple devices.
ModBus Constructor v1.1 Final Release is available (several critical bugs fixed, performance is improved).
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QuickStart Guide in French and German added to download area.
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QuickStart Guide is now available in Russian, Italian and Spanish!
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Modbus Constructor v1.0 RC1 Released.
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HOW TO create form and request
HOW TO format and scale
  Modbus Constructor provides a comprehensive solution for testing and setting up the Modbus devices.
Using Modbus Constructor you can quickly create a data management model for any of your Modbus devices. Unlike other available solutions on the market which provide displaying data as columns of abstract numbers of the same type, Modbus Constructor represents each data element exactly as you need. You may define type, format or scale independently. This makes them easy to read and analyze, especially if your device uses randomly arranged data of various types.
In Modbus Constructor you can work with key data of any type: integer, long (integer), float, double (float), or byte for any individual register or a set of registers. Integer types may be represented as signed, unsigned, HEX or binary. The same register can be represented in various ways. For example, if there are two adjacent registers that contain long numbers, each of these registers can be given additional data fields in which their content will be represented as HEX or unsigned integer.
Data fields corresponding to your data elements (registers or discreet elements) can be arranged to your liking inside the project form window. You can specify size, color, font and caption for each field.
The discreet elements occupying a continuous addresses domain can share the same field, which makes them easier to read and saves time.
In Modbus Constructor you can setup any register data field to perform a linear transformation to convert the internal units into conventional or alternative units of any system. For example, if a register contains pressure in milliamperes, i.e. the device receives data from a pressure detector equipped with a current output, the resulting value can be converted to kgf/cm2 or lb/in2.
Modbus Constructor supports automatic requests for all supported functions (01, 02, 03, 04, 05, 06, 15, 16, 22, 23) with individual periods for each one.
You can setup requests to be executed via menus or dialogs, whichever preferred. This is a convenient way of setting up control commands, changing parameters and test requests. Any project may be used for querying a device in a Master mode or simulating it in a Slave mode. For the Slave mode you may additionally include a data modification procedure operating according to this or that rule.
In Modbus Constructor your project can be further enhanced with additional captions, frames and images.
See Quick Start Guide to make equeintence of Modbus Construcror. Also available in French, German, Italian, Russian, and Spanish.
New! String data type added. ASCII as well as UTF8 strings supported. See Modbus Constructor Help.
New! Modbus Reader can show data fields colored according to current values. Also you can define text messages. It is convenient when you are waiting some particular event. See Modbus Constructor Help/Conditional formatting.

Modbus Constructor comes with a special utility, Modbus Reader, which operates using the model created with Modbus Constructor to interact with your device.
Modbus Reader is a FREEWARE program. If you have already created a Modbus Constructor project for the device you designed, your clients will not have to purchase Modbus Constructor it is enough to download a freeware Modbus Reader.
Modbus Reader can run several projects at once, i.e. query or simulate several devices using Ethernet or COM ports.
Data logging supported for multiple devices.
Modbus over TCP/IP, Modbus RTU and ASCII protocols are supported.
In addition to the requests specified in your project, you can modify any of your device's data elements by simply clicking on any associated data field, whether in Master (by sending an appropriate request) or Slave mode.
HOW TO data logging

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