Siemens Industry Online Support
Siemens AG
Entry type: Download Entry ID: 21694688, Entry date: 06/16/2005

Version Cross Checker V6.1 Now Available for Downloading

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The Cross Checker (VXC) V6.1 is suitable for SIMATIC PCS 7 V6.1, CFC V6.1 and STEP 7 V5.3 and higher and can be used for the comparison of programs with CFC/SFC charts.
It detects differences between various program versions of a project by:

Comparison of CFC/SFC charts, block types, signals and sequences, for additional, missing or different objects

Graphic representation of the results of the comparison in a combination of tree and table

Colored marking of the different objects and attribute values

The results of the comparison can be printed out or stored as text files.

The attached VXC V6.1 software comes in 3 languages (German, English, French) and can be downloaded. You can install this software on your PG or PC for testing and evaluation purposes. All the functions of VXC V6.1 are available. However, the working scope is limited as follows: 

5 Charts (CFCs, SFCs and SFC types in total) 

5 Block instances/sub-charts per CFC chart

1 Sequencer per SFC chart/SFC type

5 Steps per sequencer (SFC chart/SFC type)

As soon as one of these limits is exceeded in a program, a note will be displayed and the relevant VXC window will be closed or not opened at all. The limitations will be lifted when a VXC V6.1 Floating License, order no. 6ES7658-1CX16-2YB5, has been purchased and installed. You can then make use of the full scope of functions of the VXC V6.1 software. 

Software prerequisites: 

VXC V6.1 is a 32-bit application for MS Windows 2000 Professional and MS Windows XP Professional operating systems. To use VXC V6.1 you require either SIMATIC PCS 7 V6.1 or:

SIMATIC S7 STEP 7 V5.3 and higher and CFC V6.1 and higher


Before the installation please read the Product Information in the readme file!


Save the download file "VXC_setup_V61.zip" in a directory of your choice and then extract it to another directory of your choice.


From the extracted files select the file "Setup.exe" and start it .


Follow the installation instructions.

Readme file for CFC V6.1

 VXC Readme.wri ( 10 KB )

VXC V6.1 Software

 VXC_setup_V61.zip ( 3030 KB )

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