AGG Software Forums

I am trying to read OPC variables from a S7-1200 PLC.  The problem is that these do not appear in the variables listed by the OPC data logger when connected to the simatic OPC server.  The variable appear as:

OPC.SimaticNET.TCSB.1\TCS:[new project 1.1.101]DB1,REAL*

But the variables that I should read are:
OPC.SimaticNET.TCSB.1\TCS:[new project 1.1.101]DB1,REAL0
OPC.SimaticNET.TCSB.1\TCS:[new project 1.1.101]DB1,REAL2
OPC.SimaticNET.TCSB.1\TCS:[new project 1.1.101]DB1,REAL4
...

Siemens suggested me to look at the variables with the Matrikon Explorer that allows to change the names of the variables, I did and it worked. 

I tried to do the same with the OPC data logger but I got the problem showed in the attached picture. I use the manual mode to define the variables with the corresponding number at the end as described above.  However, I cannot longer use the Advanced OPC data logger due to this problem.  I think I have to re-install it, but:

Any idea how I can define this variables in the Advanced OPC data logger???

Could you send us the error report? We'll try to solve this problem.

Hi,

Here is the program protocol file.  This is after I re-installed the software and trying again to configure manually the variables I need to read.

I couldn't find the error report.

Hope this is useful!

Thank you!!

Unfortunately, this log file is useless. Is it 100% repeatable? If yes, then please, provide a step-by-step instructions.

Hi Arthur,

My question is more focused on whether I can actually read the variables I am interested in by adding these manually.  This is, instead of adding the auto detected variable:

OPC.SimaticNET.TCSB.1\TCS:[new project 1.1.101]DB1,REAL*

Change this manually into:

OPC.SimaticNET.TCSB.1\TCS:[new project 1.1.101]DB1,REAL0
OPC.SimaticNET.TCSB.1\TCS:[new project 1.1.101]DB1,REAL4
OPC.SimaticNET.TCSB.1\TCS:[new project 1.1.101]DB1,REAL8

Is this possible with the Advanced OPC data logger?  Do I need to do any special configuration?

Arthur,

I just got a email with an updated version of the opcsrc.dll file which I located into the correspondent  program folder.

I still cannot do what I need :(

I've send a link to an update via email. The problem with manually added tags has been fixed.

I have updated the latest opcsrc.dll file I got via email, but I still cannot add a manual variable.  It says that doesn't exist.

Do I need to do something else?

Please, remove all groups and items from the program configurations and add it again from scratch.

Arthur,

I have done the following:
- updated the opcsrc.dll file
- deleted all the groups and variables
- restart the PC
- created again the OPC configuration
- added a manually and a auto detected variables

I got:
19/01/12 14:03:22 OPC interface. Error while initializing the OPC server "OPC.SimaticNET.TCSB.1 (TCS:[new project 1.1.101]PLCConnected) - Access violation at address 0591474E in module 'opcsrc.dll'. Read of address 00000000"
19/01/12 14:06:30 OPC interface. Variable "OPC.SimaticNET.TCSB.1 (TCS:[new project 1.1.101]DB1,REAL0)" doesn't exist!
19/01/12 14:06:40 OPC interface. Error while initializing the OPC server ": Server ProgID must be specified"
19/01/12 14:06:51 OPC interface. Error while initializing the OPC server ": Server ProgID must be specified"

Please, create a backup of your configuration (from the File menu) and attach it here. I'll verify it.

I have attached the backup

I see only one OPC tag in this configuration that has been added automatically and therefore the tag name contains "*" at the end of the name.