MP270B ethernet trouble

[wanrover]

I posted this over at siemens support forum.

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I ’m building three identical machines. These machines are each set up with Multi Panel MP270B Touch-10 TFT (6AV6 545-0AG10-0AX0) , CPU 315-2 PN/DP (6ES7 315-2EG10-0AB0 / V2.3) and a Scalance X005 ethernet switch. The X005 switches is connected to a higher level Scalance X-208 switch.



The problem is that only one of the multipanels is willing to talk through its X005 switch, the other two panels refuse. If I connect them to their switch, both lights on the ethernet interface lights up and stay on. If I exchanges on of the non working switches with the working one the problem don’t move, if I exchanges one of the non working panels with the working one the problem moves. So I think the problem lies in the panels. If I connect

the non working panels directly to my lab-top I can communicate with them through the Ethernet interface, so the interface have to be in order.



Serial numbers on the panels is:

C-TDF10017 working

C-TDF09977 not working

C-TDF10007 not working



Best regards

Geir

 

[JesperMP]

Have you set different IP addresses ?

Are the IP adresses in the same subnet ?
I.e. 192.068.0.3 ... 192.068.0.4 ... 192.068.0.5 etc.

Is everything integrated into one STEP7 project ?
If you have an integrated project in STEP7 with the PLC and all 3 panels then STEP7 will take care that no simple errors are made in the configuration.

 

[wanrover]

Hi Jesper.

Yes all panels are on the same subnet and have different ip's.
And yes everything is integrated in one step 7 project.

Just tried to connect the non working panels directly to the X-208 switch and then they work fine. So the problem must lie in some sort of incompatibility between these panels and the X005 switch.