S7ETHERNET Communication Server

The Klinkmann Automation S7ETHERNET Communication Server is a Microsoft Windows application program that acts as a communication protocol Server and enables other Windows application programs to access the data from S7-300 controllers. The S7Ethernet Server provides access to a Siemens PLC through an off-the-shelf standard Ethernet network interface card in the computer and uses the "ISO over TCP" communication protocol, implemented by Libnodave library.

Any Microsoft Windows program that is capable of acting as a DDE, FastDDE, SuiteLink or OPC Client may use the S7ETHERNET Server.

There are following S7ETHERNET Server versions available:

- S7ETHERNET DDE & Suite Link Server (32-bit), can be used on MS Windows NT, W2K, XP and 95 (98);
- S7ETHERNET OPC & DDE Server, can be used on MS Windows NT, W2K, XP and 95 (98).

Note!
The main advantage of using S7Ethernet Server (supporting "ISO over TCP" protocol) if compared with software using the "S7 communication protocol" (for example, with Wonderware SIDirect DAServer), is the significant Ethernet communication speed improvement for communication with Simatic CPU 317-2 PN/DP controllers (firmware V2.5.0 and newer).

FEATURES

The OPC support for S7ETHERNET Server OPC & DDE version conforms to OPC Data Access Custom Interface Specification 2.04. The S7ETHERNET Server OPC & DDE version is tested for compliance and is compatible with OPC Foundation OPC Data Access Compliance Test Tool.

The S7ETHERNET Server DDE & Suite Link version (if running on MS Windows NT) supports the Wonderware Suite Link communication protocol.

Supports simultaneous interface to Siemens STEP 7 programming software.

Provides access to a Siemens PLC through an off-the-shelf standard Ethernet network interface card in the computer and uses the "ISO over TCP" communication protocol, implemented by Libnodave library.

The S7ETHERNET Server supports item/point names that are consistent with the addressing and point naming used in Siemens S7 PLCs.

Minimizes system message traffic by dynamically calculating and optimizing poll lists for client-requested items/points.

Supports multiple topics for each PLC, allowing different data update rates.

Provides a communication status flag for each topic.

Supports standard DDE among multiple applications.

SPECIFICATIONS

Hardware: IBM or compatible 386/486/Pentium equipped with a minimum of 4 MB RAM (16 MB RAM for Windows NT). May require more memory to run other Windows programs simultaneously.

Software: Microsoft Windows 95 (98), Microsoft Windows NT 4.0, W2K and XP.

Computer Interface: Ethernet TCP/IP connection, by using the "ISO over TCP" communication protocol, implemented by Libnodave library.

Maximum Connections: As many as necessary S7-300 controllers connected to Ethernet network can be accessed.

Devices Supported: Siemens Simatic S7-300 and S7-400 PLCs.

Accessible Data Types: The S7ETHERNET Server supports item/point names consistent with the system used for addressing of data areas in the Siemens S7 PLCs. The following data areas are supported:

Data Blocks

Flags

Inputs

Outputs

The wide range how to interpret the data is supported: bits, bytes, byte arrays (as strings), chars, char arrays (as strings), words, word arrays (as strings), integers (signed, BCD), integer arrays (as strings), double words (unsigned, BCD), double word arrays (as strings), double integers (signed, BCD), double integer arrays (as strings), reals, real arrays (as strings). The special additional items can be used e.g. to start/stop the PLC program etc.

ORDERING INFORMATION

Description / Order Number

S7ETHERNET DDE & Suite Link Server Manual & Disk Set / DR 570 10

S7ETHERNET OPC & DDE Server Manual & Disk Set / DR 570 11