Modbus ASCII

Building Automation Suite Get Modbus ASCII as a part of this suite. Learn More IT and Infrastructure Suite Get Modbus ASCII as a part of this suite. Learn More Manufacturing Suite Get Modbus ASCII as a part of this suite. Learn More Modbus Suite Get Modbus ASCII as a part of this suite. Learn More Oil and Gas Suite Get Modbus ASCII as a part of this suite. Learn More Power Suite Get Modbus ASCII as a part of this suite. Learn More

Product Overview

The Modbus ASCII driver provides an easy and reliable way to connect to Modbus ASCII compliant PLCs and other devices to your OPC client applications, including HMI, SCADA, Historian, MES, ERP, and countless custom applications.
  • Ethernet Encapsulation
  • Modbus ASCII Multi-drop Supported
  • Full Address Range Support (0 - 65535)
  • User Definable Read Block Sizes
  • Adjustable Address Base (0 or 1)
  • Word Order Swapping for Floating Point and Longs
  • RTU Functions used: 01, 02, 03, 04, 05, 06, 16
  • Direct Support of Flow Automation flow computers
  • All memory types and data types supported
  • Modem Support
    • Automatic Dial Configuration
    • Multiple Phone Number Management
  • Communication Serialization
  • Modbus ASCII
  • Any Device Supporting Modbus ASCII
  • Any Modbus ASCII Compliant PLC
  • Flow Computers
  • English
  • German
  • Japanese
  • Simplified Chinese
  • DDE Format CF_Text and AdvancedDDE
  • NIO Interface for iFIX
  • OPC .NET Service (OPC .NET) Version 1.00
  • OPC Alarms and Events (OPC AE) Version 1.10
  • OPC Data Access (OPC DA) Versions 1.0a, 2.0, 2.05a, and 3.0
  • OPC Unified Architecture (OPC UA) Clients
  • SuiteLink and FastDDE for Wonderware

6.9.572.0

6/2/2020

  • Fixed an issue where the driver would not retry a request after receiving a response from the wrong station ID.

6.4.321.0

12/13/2017

  • Resolved an issue where the driver could incorrectly respond to transactions that did not match the station ID.

6.3.305.0

6/11/2018

  • Fixed an issue where Device ID was ignored so the driver would process data from a slave other than the intended one.

6.2.460.0

7/6/2017

  • Added Chinese language support.

6.0.2107.0

11/15/2016

  • Added German language support.
  • Added Japanese language support.

5.18.662.0

6/23/2015

  • Fixed an issue where write-only strings failed to write when "Perform block read on strings" was enabled.

5.10.205

11/13/2012

Updated the driver with the new Connection Sharing feature.

5.9.170

6/26/2012

  • Increased the character limit of the tag Description field from 64 to 255.
  • Added a new option for handling illegal address exceptions that allows users to deactivate tags when an illegal address is detected.

5.8.109.0

2/21/2012

Added support for Channel Serialization.

5.1.71.0

10/21/2009

  • Added string data type support for Internal Registers.