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LP-AM243: Scanning the LP-AM243 with Proneta, it doesn't comes up.

Part Number: LP-AM243

Hi Experts,

Firstly, let me clarify the meaning of the PRONETA.

PRONETA can be easily used to scan the topology overview, and also configure, control, and monitor I/O modules.

PRONETA Basic simplifies commissioning and configuration of your PROFINET network. The topology of your network is read automatically. You can manually adapt the address parameters of every

PROFINET device or simply apply the parameters from a template, which can also be created with PRONETA Basic.

Secondly, when I download the Proneta and scan the LP-AM243,  sometimes it doesn't comes up the device as below picture.

 I run the PN/RT example on the SDK 8.1, and I use a network cable/RJ45  to connect the LP-AM243 board to my computer. 

When I scan the LP-AM243 for the first time, it can display normally, then I set the IP and address, it can display the connection status normally, it shows Fig.1.

But after a while, the LP-AM243 was lost as shown in the Fig.2. 

And then, rescanned the LP-AM243 again and it never showed up again, keep the same status in the Fig.2.

Therefore, I checked the power supply on the LP-AM243 board, the port status/ MDIO Link up,  there are normal.

So it is not clear what causes this instability, the customer also encountered the same problem.

Fig.1

Fig.2

Can you give me some dir/suggestion?

I tried to change the computer, the same issue as depicted above. Thanks!