You can use ComDrvS7 to enable your windows program, written in C++, C#, VB, ..., to access (read/write) the PLC.

ComDrvS7 supports S7-PLCs (S7-300, S7-400, and compatible PLCs)

ComDrvS7 Micro supports the PLCs S7-1200 and LOGO! from SIEMENS.

ComDrvS7 has many additional functionality.

Read more in the next sections.

Key-Features:

• Available as a 32/64-Bit-Windows-Dynamic Link Library (DLL) and as .NET Assembly
• Can be used with 32/64-Bit-Windows Applictions on Windows XP, Windows Vista (32/64 Bit), Windows7 (32/64 Bit)
• With examples for Visual Basic 2006, Visual Basic .NET, VC++, C#, Excel, Embarcadero C++, Delphi
• Without any other drivers you can connect to a S7-PLC (S7-300, S7-400, S7-1200) via TCP/IP, NETLink++, NETLink-PRO, IBH-Link, IBH-Link++
• Supports SIEMENS MPI/DP Interfaces when the SIMATIC NET driver is installed
• Read and write operands (Input, Output, Timer, Counter, Data)
• ReadMix-Function: Read different addresses with optimizations with one function call
• WriteMix-Function: Write different addresses with optimizations with one function call
• Connect to several PLCs at the same tim
• The first version of ComDrvS7 was released in 1999. ComDrvS7 is reliable, stable and has a very good price-performance ratio.

Additional functions:

• Read the RUN/STOP state
• Read the state of the RUN/STOP switch
• Read the serial number of the PLC
• Read the serial number of the MMC Card
• Read the order number of the connected PLC
• Read the list of the accessible PLCs
• Read the existing data block numbers in the PLC
• Read the states of the LEDs (Error, Communication, ...) on the CPU module
• Copy RAM to ROM
• Read and write the clock of the PLC
• Switch the PLC in RUN or STOP mode
• Write complete data blocks to the PLC from a WLD file
• Read complete data blocks in the PLC and write them into a WLD file
• Many converter functions like BYTE to REAL, WORD to REAL, ...

Additional function in the ComDrvS7-Extended version:

• Complete Backup of the PLC
• Complete Restore of the PLC
• Delete the hardware configuration of the PLC
• Get the list of the blocks in the PLC
• Delete a block in the PLC
• Compress the RAM of the PLC
• Load different blocks of the PLC and save it into a WLD file

Key features:

• Available as a 32/64-Bit-Windows-Dynamic Link Library (DLL) and as .NET Assembly
• Can be used with 32/64-Bit-Windows Applictions on Windows XP, Windows Vista (32/64 Bit), Windows7 (32/64 Bit), Windows8 (32/64)
• With examples for Visual Basic 2006, Visual Basic .NET, VC++, C#, Excel, Embarcadero C++, Delphi
• Without any other drivers you can connect to a LOGO! or S7-1200 device
• ReadMix-Function: Read different addresses with optimizations with one function call
• WriteMix-Function: Write different addresses with optimizations with one function call
• Connect to several PLCs at the same time

Functions for S7-1200:

• Read and write inputs
• Read and write outputs
• Read and write flags (bit memory)
• Read and write data blocks (addresses). This is only possible if the data block not created with the option "only via symbolic addressable"

Functions for Siemens LOGO!:

Readable addresses:

• Inputs, analog inputs
• Networkinputs, analog network inputs
• Output, analog output
• Network output and analog network output
• Flag (bit memory), analog flag
• V-area

Writeable addresses: 

• Networkinputs, analog network inputs
• Output, analog output
• Network output and analog network output
• Flag (bit memory), analog flag
• V-area

Can be used with the following operating systems:

• Windows 10 (32- and 64 Bit)
• Windows 8 (32- and 64 Bit)
• Windows 7 (32- and 64 Bit)
• Windows XP (32 Bit)
• Windows Vista (32- and 64 Bit)
• For all Editions: Home, Pro, Ultimate 

Note:

Your application must be a 32-Bit-Software.

If your application is a native 64 Bit Software you need "ComDrvS7 Developer License" and "ComDrvS7 64 Bit Option for the Developer License"

Multi-Language Software:

• German
• English

Download the demo version:

• Demo ComDrvS7 V6 (ZIP)

Update 07-19-2012: Now with many examples in english language.

Order now ComDrvS7 ...

Frequently Asked Questions (FAQ):

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