Siemens Step 7 file & folder structure

[L D[AR2P#0.0]]

... a complete change in direction. Have you considered using an AutoLT script to run Simatic Manager under script control and then extract the symbol information "as if" you were a user ?

 

[ravipal]

Any idea about STEP7 Basic V10.5 folder or project structure? does any one have suggestions?

 

[OPC_Eng]

there is a theory but I didn't test it enough yet: if you go through homsave7\shk3(number)AX then search inside the HRELATI1 tables for TOBJID (program ID taken from s7resoff) and TOBJTYP = 1331969 .. once you find that row you take the SOBJID & the SOBJTYP then you go through the homsave7\shk3(number)AX\HOBJECT1 table and looke for the SOBJID AND THE OBDJTYP you got and from there you get the CPU name of the program

for type 400 cpus you will have to look at shk4(number)AX as well

 

[Thomas_v2]

Hi OPC_Eng,
I looked into the databases, and I changed my method from bottom-up to top-down (from S7-Station down to S7-Program folder, like it's shown in the Step7 Manager).

1.) S7-Station
    |
2.) |>- S7-CPU
        |
3.)     |> S7-Program

At first I go into /hOmSave7/s7hstatx/ to get part 1.)

SELECT ID, NAME, OBJTYP, UNITID FROM HOBJECT1 WHERE OBJTYP = 1314969 OR OBJTYP = 1314970

OBJTYP 1314969 are S7-300 stations, and 1314970 are S7-400 stations.

To get the part 2.) PLC-name/ID, I have to take the TOBJID with the result ID:

SELECT TOBJID FROM HRELATI1 WHERE SOBJID = $ID AND RELID = 16

With this TOBJID I can take the ID and name from corresponding hw-folder (/hOmSave7/S7HK31AX or /hOmSave7/S7HK41AX)

SELECT NAME, ID FROM HOBJECT1 WHERE UNITID = $TOBJID

From here I can get part 3.) S7-program ID with

SELECT TOBJID FROM HRELATI1 WHERE SOBJID = $ID AND RELID = 16

With this TOBJID I can go into S7RESOFF and take the rest.

I tested it with some different projects, and it seems OK.

 

[datenbaustein]

very helpfull informations, thank you guys!

I'm trying to read ths SYMLIST.DBF with C# (OleDb Provider) and have problems with accessing to the file. The file seems to be locked. S7RESOFF.DBF, BAUSTEIN.DBF etc. can be accessed without a password.

Does anybody has a solution for my problem?

 

[Thomas_v2]

I'm trying to read ths SYMLIST.DBF with C# (OleDb Provider) and have problems with accessing to the file. The file seems to be locked. S7RESOFF.DBF, BAUSTEIN.DBF etc. can be accessed without a password.

Does anybody has a solution for my problem?

Make sure Step 7 is not running in the background.

The OleDB-Provider for dbase files is cr*p. You will get further problems if you are using it. Before I started with Perl I tried it also with C# and the OleDb driver.
In some files the encryption flag and the MDX flag are set. You have to remove both flags (copy files to temporary directory and modify these files) before the OleDb Provider is able to load them.

File format description for dBase files:
http://www.clicketyclick.dk/databases/xbase/format/

 

[datenbaustein]

Step 7 is not running.

I think its the problem with the flags.
Thanks for the informations Thomas!

 

[jogibear9988]

New...

Thomas showed me this thread for Infos about the Project File Format.

I've packed what i know in a little software, you can get it at:

http://www.sps-forum.de/showthread.php?p=278975#post278975

when i'm finish with this i will include it in my libnodave connection library wich you can get at:

http://jfk-solutions.de

There will then also the source code be aviable