probleme with wago 750-333 and S7-300 CPU 313C-2-DP

Hello karim;

Have a look at the Diagnostics section of the 750-333 manual, the first part shows how to evaluate an error based on the diagnostic LED status:

http://www.wago.com/wagoweb/documentation/750/eng_manu/coupler_controller/m07500333_xxxxxxxx_0en.pdf

By the way, you seem to have no I/O modules setup on the Wago 750-333 Profibus slave; what data exchanges do you plan on transferring to the master? And you seem to have no end module installed to terminate the module bus, ther should always be one (part number 750-600) See the following quote, from the same manual, section 5.5, page 58.

Don't forget the bus end module!

Always plug a bus end module 750-600 onto the end of the fieldbus node! You must always use a bus end module at all fieldbus nodes with WAGO-I/O- SYSTEM 750 fieldbus couplers/controllers to guarantee proper data transfer.

If this is not the issue, one thought that comes to mind is that the Wago module might not have the same address set on the rotary switches that is configured in the S7 Profibus configurator (Profibus address 6). Please check that (there is a section on using these switches for addressing in the manual already mentioned) and come back to us.

In any case, there are diagnostic LEDs light up on the S7 Profibus master. The diagnostic buffer of the S7 CPU should contain messages detailing the source of the problem. SF indicates an internal fault, but BF generally means a configured slave cannot be reached (this adds to the possibility of an addressing error).

So please open the diagnostic buffer and ry to interpret the errors yous ee there. If you have trouble doing so, Save (As Text) the contents of the buffer and attach the messages that seem to relate to a bus fault to your next reply, we might be able to help you find the source of the problem with more precision.

Hope this helps,

Daniel Chartier

Hllo karim;

The firmware (FW) of your 750-333 module is written on the side of the module, along with other data. Select the configuration that is closest to the range of FW in th configuration settings.

I believe the following link is the one you showed originally; it contains a sample configuration for the 750-333 as a Profibus slave to a S7-315-2DP master:

Configuration a Profibus-DP node using Step7 and WAGO-I/O components

See the attached picture, and the original text for more explanations.

By the way, the 750-600 end module is required to terminate the IO bus of the Wago modules, but is not part of the configuration.

Hope this helps,

Daniel Chartier

i checked the side of the module but i can't recognize the FW

Hello Karim;

The manufactiuring number inscribed on the side of the 750-333 module contains the FW(L) number of the module.

This is described in the manual I proposed earlier. See the attached picture.

Please research this very useful aid when looking for information oin your module.

Hope this helps,

Daniel Chartier

Hi dchartier

Thank you so much for your help now i know my FW(03)

but it still one thing that i don't get it it's the different between the FW(L) PRO and STD

and for the diagnostic buffer tomorrow i will post it

thank you again

Hello Karim;

Please look at the following discussion on the Siemens forum, specially the last one:

https://support.industry.siemens.com/tf/ww/en/posts/cpu-319f-profibus-communication-with-a-profibus-remote-i-o-help/109672/?page=0&pageSize=10

From that discussion I would infer (without proof, really) that a STD gsd file allows you you integrate standard Wag IO modules in the Profibus slave, and a PRO gsd file might be used to integrate Profisafe modles (for Safety Applications.

I cannot find more details from the Wago site, at this point I would have to suggest you contact your local Wago support engineer foraa more informed explanation.

Hope this helps,

Daniel Chartier

Hi dchartier

thank you a lot for all this helpful informations 

New question published by pharaz is split to a separate thread with the subject wago 750-333?.

Best regards
Blue Moderator