Has anyone found an easier approach to converting code from STL so that it can be viewed in LAD or FBD?

Here is an example of 2 snippets from code that can't be viewed unless modified. Just for understanding this is the S5 code. It converts to S7 the same.  The problem is manually converting to LAD, I am not sure if I have done it correctly. I end up having to rest each conversion manually. Please feel free to post ladder conversion so that I can cross reference if I have done it correctly,

Example 1

A(
O F 0.2
O F 142.4
AN Q 40.0
A F 142.0
O
A(
O I 24.1
O F 252.1
)
AN I 24.0
AN F 142.0
)
AN F 100.0
A T 64

= F 142.4

Example 2

A(
A F 0.2
AN Q 40.5
O F 142.5
A F 142.0
O
A(
O I 24.1
O F 252.1
)
AN I 24.5
AN F 142.0
)
AN F 100.0
A T 64
AN F 142.7
= F 142.5

Hello,

please post your converion and we will check.

Best Regards

It is not clear what the issue is other than F-flags needs to be M-flags. Even then the M-flags might not stretch as far as used in the code.

Attached should convert to LAD.

Hi gbs,

Please see attached LAD ckt for your STL code.

The LAD is higher level language whereas STL is lower level so STL code will not get converted to LAD 100 out of 100 times. Minor changes in STL code can left the code impossible for LAD conversion.

Sachin Patke,

Something is bothering me about the version you made for gbs. I am not able to put my finger on it and do not have access to Step7 Prof. I am not as practiced with this as I once was.

Would you mind supplying the STL version of what you showed in LAD. Please.

Thanks in advance.

Hi expert,

Please check.

Tip 1:

What I have found is the first Or is the culprit which prevents switching between STL and LAD or FBD.

Example:

A     "M142.1"
A     "T51"
O     "M153.0"
A     "M142.0"
AN    "M153.2"
=     "M153.0"

Solution:

A(
A     "M142.1"
A     "T51"
O     "M153.0"
)
A     "M142.0"
AN    "M153.2"
=     "M153.0"

Tip 2:

Its easier to convert to FBD. As you read STL from top to bottom create FDB blocks.

Hope this helps and feel free to add or verify.

Regards,

gbs

Sachin Patke,

I agree with the first solution. For the second solution I have this:

A(
A(
A     "M0.2"
AN    "Q40.5"
O     "M142.5"
)
A     "M142.0"
O
A(
O     "I24.1"
O     "M252.1"
)
AN    "I24.5"
AN    "M142.0"
)
AN    "M100.0"
A     "T64"
AN    "M142.7"
=     "M142.5"