Technical information
4/30
Presentation
Based on the OLE for Process Control (OPC) standard, Schneider Electric's OPC 
Factory Server (OFS) software allows “client” software applications, such as 
supervisors/SCADA and customized interfaces, to access the data of Schneider 
Electric automation system and electrical distribution devices connected to networks 
or eldbuses in real time.
It also allows communication with third-party devices supporting Modbus and 
Modbus/TCP protocols.
OFS enables simpler, more open and transparent communication between your 
software applications and your devices. These are just some of the advantages that 
result in a complete interoperability solution that is central to your process.
In version V3.5, the OFS data server integrates the following specications:
b OPC-DA (OPC Data Access)
b .NET API interface
b OPC XML-DA V1.0 (OPC XML Data Access)
b OPC-UA (OPC Unied Architecture)
There are two versions of the OFS V3.5 offer:
b OFS Small: Data server for 1000 items (1) supporting the OPC-DA and OPC-UA 
protocols (OPC XML-DA protocol not supported). 
b OFS Large: Data server with an unlimited number of items (1) supporting the 
OPC-DA, OPC XML-DA and OPC-UA protocols.
Devices and protocols supported
OFS software is a multi-device data server: it allows simultaneous use of several 
communication protocols, and it provides client applications with a set of services for 
accessing control system items that may be local or remote, via physical address or 
via symbol.
Devices supported:
b Modicon Quantum, Premium, M340, M580, Micro, Compact and Momentum 
PLCs
b Schneider Electric TSX Series 7 and April Series 1000 PLCs
b Modbus serial devices connected via Schneider Electric gateways: TSXETG10pp,
EGXppp ranges, etc. 
b Uni-Telway serial devices connected via Schneider Electric gateways 
(TSXETG1010)
Networks and protocols supported:
b Modbus: Modbus serial, Modbus Plus, Modbus/TCP 
b X-Way/Uni-TE: Uni-Telway, Fipway, ISAway, PCIway 
Openness
The development of specialized interfaces is simpler with OFS V3.5 software, which 
is aimed at two types of user in particular:
b End users who want either to interface their supervision or human/machine 
interface applications with Schneider Electric equipment, or to develop applications 
on a PC (supervisory control screens, Excel spreadsheets etc.) requiring access to 
control system data.
b Suppliers of control system or industrial data processing software
(supervision, human/machine interfaces, etc.) seeking to develop, within their 
standard products, an OPC Client interface capable of accessing data in Schneider 
Electric equipment via the OFS server.
(1) “item”: variable, structure, table etc. in the Unity Pro application.
OPC Factory Server
Software 3
OPC data server software
OPC Factory Server
Architectures:
page 4/31
Setup:
page 4/33
Functions:
page 4/34
References:
page 4/35
Time stamping system:
page 4/36
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