Overview
OverviewKepware's 32 bit Modbus Ethernet device driver works in conjunction with our OPC Server KEPServerEX, to provide data exchange between OPC Clients and Modbus Ethernet protocol compliant PLCs. Kepware's implementation of Modbus Ethernet OPC Server supports master and slave operations simultaneously. The slave mode allows the server to receive data by exception from other Modbus Ethernet devices. KEPServerEX automatically optimizes your data acquisition based on client demand. Data integrity is ensured with our extensive error handling.
The Modbus Ethernet driver now offers direct integration with Modicon Concept and ProWORX programming packages. If you are using either of these packages you will be able to directly import the tags used in your PLC application directly into KEPServerEX. This time saving step makes all of the relevant PLC data available to your OPC client applications instantly. Learn more about Automatic Tag Database Generation.
This driver is part of the Modicon Modbus Communications OPC Server Suite. Purchasing either the Modbus RTU OPC Server, Modbus RTU Slave OPC Server, Modbus ASCII OPC Server, Modbus Plus SA85 OPC Server, or the Modbus Ethernet TCP OPC Server entitles you to all five drivers.

Devices
Supported Devices| Device | Note |
| Modbus Ethernet | See Modbus Ethernet Help File |
| Mailbox | Consult your Modicon Documentation on the MSTR instruction for sending unsolicited requests to the Modbus Ethernet driver. |
| Fluenta FGM | See Modbus Ethernet Help File |
| Roxar RFM | See Modbus Ethernet Help File |
| Instromet | See Modbus Ethernet Help File |
Features
Specific Driver Features
SpecificSpecific Driver Features
GeneralGeneral Driver Features
OPC/DDEOPC/DDE Features
Learn more about OPC - Open Process Control HMI/ClientHMI/Client FeaturesKEPServerEX has been enhanced to provide the widest range of connectivity of any server product available. KEPServerEX supports the following client server technologies:
To see a list of HMI's and Clients that we support go to our HMI / Client Support page. |
Required
Required Software and HardwareSupported 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 Ethernet
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
