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Mesulog > Products > Modbus Steps
Overview
Modbus Steps Logo

Modbus Communication Toolset for NI TestStand™

Version 1.0 - July 2016

MESULOG Modbus Steps includes a set of TestStand Custom Steps to communicate easily with your Modbus Devices.


Overview of Modbus Steps
Figure 1: Communicate easily in Modbus with all your devices from NI TestStand...


Overview of Modbus Steps :
  • Compliant with all Standard Modbus Functions
  • Possibility to add your custom functions easily
  • Unique connection management system
  • Fully integrated with NI TestStand


Modbus Functions
Modbus Steps was developed to communicate easily between TestStand and your Modbus Devices.

Fully integrated to TestStand, Modbus Steps provides an insertion palette including all the standard Modbus functions to communicate with your devices.


Figure 2: Insertion Palette of Modbus Setps


With this add-on, you can connect your equipments in Modbus trough Serial, TCP/IP or RTU over TCP/IP and do all the standard read write operaitions :
  • Read/write of "Coils"
  • Read/write of "Discrete Inputs"
  • Read/write of "Holding Registers"
  • Read/write of "Input Registers"

To communicate with an equipment, Modbus Steps integrate a unique connection manager. With this feature, you have to specify a connection name (constant or TestStand Variable) when opening the connection, and reuse this name in every steps that needs to communicate with this device.


Figure 3: Modbus Steps edition window example


You don't have to manage any specific references, Modbus Steps handle ti for you, and this functionality is fully compatible with all execution models of TestStand.


Custom Functions
Modbus Standard allow you to add custom functions to devices in addition of standards functions. To take advantages of all the possibilities of the Modbus, we add the ability to implement custom functions in Modbus Steps.

By following the template, you can add easily a custom function to TestStand and take advantages of the connection manager integrated in Modbus Steps.

If you need to have a more integrated solution, please contact us to have more information.


Slave Mode
Because you maybe need to simulate a Modbus Device, you may need to have a fully software and configurable Modbus Slave in your application.

Modbus Steps doesn't integrate Modbus Slave Function directly. By the way, we have some good knowledge and expertise of building Modbus slave simulator. If you have a specific need, don't hesitate to contact us to discuss the most suitable solution to your needs.


Licenses
You can evaluate Modbus Steps freely during 30 days. After that, you need a valid licence to edit and run Modbus Steps in your application.

Pricing

Modbus Steps Development License490 €Buy


Modbus is available as single seat license only. If you need volume licenses, please contact us.


Prerequisites
  • Windows 7 or higher (32 or 64 bits)
  • NI TestStand 2012 or later (32-bit)
  • NI LabVIEW Run-Time Engine 2012 (32-bit)
  • NI-VISA 5.3 or higher


Downloads
Modbus Steps 1.0.0 (6.4 Mo)


Online help
Modbus Steps help is available online in HTML.
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