S7.Net to Modbus

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Software gateway for the conversion between Siemens S7 Protocol and Modbus/TCP-RTU

The S7.Net-to-Modbus software manages the protocol conversion between Siemens S7 Protocol and Modbus RTU/TCP.

The software allows, without the purchase of another hardware, to convert in a simple and instant mode the Modbus protocol, from TCP or RTU version to the Siemens S7 protocol and the reverse. The product acts as a gateway and allows to put in communication between their equipment with the communication systems of different physical levels.

All without the need to purchase hardware but using any PC present on location.


The most common scenarios for using the software are the following:

Concentrator: In this mode the software is configured as Master Modbus/TCP and RTU on some of its ethernet and serial interfaces.Through these interfaces, the software goes to interrogate the slaves present on RS485, RS232 or ethernet bus and maintains the acquired values in the memory. The values are then transferred in memory areas of PLC Siemens via S7 Protocol.

Gateway Multi-Master: the software can be configured as Master on one or more serial or ethernet interfaces, to more slave devices. The software can, in this way, manage of moving the data from one slave to the others, in an automatic time mode.

Multimaster Modbus on serial line: the software can occupy of interrogate slave devices present on one or more RS485 serial networks and respond to the interrogations of one or more Master Modbus RTU on other serial interfaces. In this way is possible to integrate in your network more than one master (for example SCADA and operator panel)



The main features of the software are:

Link / Connections To more devices through Ethernet network(TCP, UDP) or RS232 / RS422 / RS485
Configuration Intelligent configurator with automatic detection address syntax mistakes
Traffic analysis Analysis and recording of data exchanged on the network (performance analysis)
Diagnostic of communication at the level of OPC variables
Modem support Connection to remote stations through calling via Modem made with command via OPC
Type of data supported Integers 16bit with sign
Integers 16bit without sign
Integers 32bit with sign
Integers 32bit without sign
Real 16bit
Real 32bit

Management of variables of boolean type for the holding register area and input register, with the Read-Modify-Write metodology for the writing

Support devices not standard Support the "block" management of complex variables, such as that used by the protections Thytronic ©.
Support to Siemens devices S7-200 (with Ethernet module), S7-300, S7-400, S7-1200, S7-1500, LOGO, ET-200S
STEP7 integration Integration with STEP7 project for the import of the variables 
Additional features Possibility of swap data to byte, word, double word
Support block transfer with settable size to optimize communication
Import/Export of created configurations 
Optimized communication speed for RTU serial protocol
Operating systems supported Compatible with WIN NT 4.0, WIN 2000, WIN 2003, WIN XP and WIN VISTA, WIN 7, WIN 8 (32 bit and 64 bit)

For more informations visit the PAGE WIKI




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