Modbus ASCII Serial OPC Server - KEPServerEX OPC Servers

Overview

Kepware's 32 bit Modbus ASCII device driver works in conjunction with our OPC Server KEPServerEX, to provide data exchange between OPC Clients and Modbus ASCII protocol compliant PLCs and Devices. KEPServerEX automatically optimizes your data acquisition based on client demand. Data integrity is ensured with our extensive error handling.

This driver is part of the Modicon Modbus Communications OPC Server Suite. Purchasing either the Modbus RTU Serial OPC Server, Modbus RTU Slave Serial OPC Server, Modbus ASCII Serial OPC Server, Modbus Plus SA85 OPC Server, or the Modbus Ethernet TCP OPC Server entitles you to all five drivers.

Modbus ASCII Serial OPC Server

Devices

Supported Devices

Device	Note
Any Modbus ASCII Compliant PLC
Any Device Supporting Modbus ASCII
Flow Computers	*using the Daniels/Omni/Elliot register addressing

Features

Specific Driver Features

Specific

Supports 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.

General

Multi-threaded design for optimum performance.
Application Connectivity
Device Connectivity for concurrent devices.
Supports running as a Windows NT Service.
Supports Direct Scaling of device data.
Full Time On-line operation.
CSV file import and exportof server tags.
User Management
Tag Management
Network Interface Selection
Channel Diagnostics provide real-time data.
OPC Diagnostics to view OPC events.
Modem support for all serial drivers.
OPC Quick Client application.
Visual Basic OPC Client with VB Examples.

OPC/DDE

OPC Data Access Version 1.0a
OPC Data Access Version 2.05a
OPC Data Access Version 3.0

Learn more about OPC - Open Process Control

HMI/Client

KEPServerEX has been enhanced to provide the widest range of connectivity of any server product available. KEPServerEX supports the following client server technologies:

FastDDE for Wonderware
SuiteLink for Wonderware
iFIX PDB for Intellution
DDE Format CF_Text
DDE Format AdvancedDDE

To see a list of HMI's and Clients that we support go to our HMI / Client Support page.

Required

Required Software and Hardware

Supported Operating Systems

Windows NT
Windows 2000
Windows Server 2003
Windows XP

PC Hardware

Minimum

400 Mhz Pentium CPU
128 Megs of RAM
100 Megs of Free Hard Drive Space

Recommended

600 Mhz Pentium CPU
512 Megs of RAM
100 Megs of Free Hard Drive Space

Hardware Requirements

For Device and Hardware Requirements see the Devices tab.
Hardware Accessories

Protocol

Communication Protocol

Modbus ASCII Protocol.

VB

Visual Basic

KEPServerEX Visual Basic OPC Client
Complex and Simple Visual Basic OPC Client Examples
Using Modems and Visual Basic with KEPServerEX.
Download the Modem and VB Example with Source Code
Knowledge Base

Help

Help/Links