LOGO!Soft Comfort Demo software

I'm teaching students the basics of Industrial Automation and PLC-programming.

And I'm using the LOGO!Soft Demosoftware to have them write programms and simulate those at the end.
But I've seen errors in converting FBD into LAD.

1) Is there anything known on these conversion errors?

2) I'm using the version V8.0.0 (28-aug-2014).
Is this really the most up-to-date version?

Thnx in advance for your replies.

KR, Laurens

Have you examples for errors, when you convert from LAD to FBD or back ? In most cases it makes no sense to convert, because both versions have benefits in their views. I often program in LAD and had no problems in the last time. Some years ago there were some errors, but you can't get any lists about the exactly known errors.

Regards, Scorp

ixo65

Hello BoCari,

at first welcome to the forum.

Here is just a user forum. If you want statements from Siemens, you have to start a Support Request.

To 1.) I don't work much with LAD, so I can't say anything about possible errors when converting to FBD.
I mainly create programs in FBD.

To 2.) The current demo version is V8.0. The current version of the licensed software is V8.2.1.

Tnx ixo65,

I was just checking with other forum-users if they have seen errors in converting FBD into LAD.
Let's wait and see if others can confirm this.

To 1.) Attached you'll the program in FBD; your favourite 

Simple program that uses 2 Flags to define 2 states in a SFC (GRAFCET).
First state becomes active once I1 (Start) is pushed.
State 2 becomes active once I2 (Stop) is pushed. After 5 secs state 2 becomes inactive.
I know this can be solved in a much easier way, but this is the basis for a more complex SFC.

Easy to do the simulation on this FBD.
But if you convert this FBD into LAD and run the LAD-version in simulation, it doesn't give the same endresults. 

So what's going wrong here?

HI Scorp,

Program is in FBD designed; also attached.

Once converted into LAD, it doesn't give the same endresults when running in simulation.

BoCari

HI Scorp,

Program is in FBD designed; also attached.

Once converted into LAD, it doesn't give the same endresults when running in simulation.

Sorry, but i see no difference in my full version, both versions are working identical. Maybe i try it later with a demo version, but i know, that sometimes are problems.

Main problem in the past were copy and paste errors in LAD programming with destroyed diagrams (must be recreated). But this seems to be solved with version 8.2.

Siemens should offer a newer demo version, Scorp

ixo65

With fullversion of LSC V8.0 is the error also....

 Yes, but i think the problem is not the faulty full version 8.0 but the missing demo version 8.2.