This function can be used to compare two circuit programs.

LOGO!Soft Comfort does not recognize differences in the graphical block layout and in comments.

Prerequisite

• The circuit programs must be open in LOGO!Soft Comfort. As an alternative, you can also compare a program opened in LOGO!Soft Comfort with a program in the LOGO! device.

• You can compare only circuit programs of the same type, that is: *.lsc with *.lsc, *.lld with *.lld, or *.lma with *.lma.

①	Select the two circuit programs to compare.
②	Click the Start button
③	You can use the two arrow keys to maximize the display area of one circuit program; however, the display of the other circuit program is thus hidden.
④	Here LOGO!Soft Comfort shows you the differences in the two programs: - Number of blocks - Block parameters - Additional/missing blocks - Different hardware - Different message text FBs (both text and bar graph) - Different connections - Different parameter VM mapping lines - Different Ethernet connections

Compare two circuit programs with parameter VM mapping settings

When you compare two circuit programs with parameter VM mapping settings, LOGO!Soft Comfort compares two lines and displays the comparison results. LOGO!Soft Comfort only displays the differences between the first two different lines because once two lines differ, LOGO!Soft Comfort will stop comparing subsequent lines. The following figures show different VM mapping setting windows of two circuit programs.

As shown in the following result display, the parameter names in parameter VM mapping line 1 of the two circuit programs are different.

Compare two circuit programs with Ethernet connections

When you compare two circuit programs with Ethernet connections, LOGO!Soft Comfort compares their configurations of Ethernet connections, and then displays the comparison results.

During the comparison of Ethernet connections, once a difference occurs in a connection setting, LOGO!Soft Comfort will stop comparing subsequent settings.

The following figures show different module addresses and different Ethernet connections:

As shown in following result display, the compared two circuit programs have different module address settings and different IP address settings for two Base Modules that are both used as Client.

Editing

All options are available to you for separate editing of the two circuit programs.

Different hardware

If you have configured different LOGO! devices in the two programs, you will see a considerable number of messages. To avoid such messages, make both devices the same.

Note

When you compare circuit programs with internal markers, in some circumstances LOGO!Soft Comfort reports more differences than there really are.

LOGO!Soft Comfort provides a quick and easy way of zooming your circuit program window. Also, see the topic on How to access functions via the shortcut menu.