Hello,iam trying to upload the program from this system :

profinet io with ET200S cpu 6ES7 151-8AB00-0AB0;

the system is shown in the photo  ;

i plugin the ethernet  cable into port p1

p2 and p3 is connected to the other  devices.

the [display accessible nodes] is shown in the photo.

the problem is when trying to connect to ET200Scpu or any other device

it show this message:[Online:connection could not be established .the connection

partner is not responding]

please how can i upload from this cpu?

thanks;

Hi,

Have you try to disconnect the other 2 ports?

The upload procedure is detailed in SIMATIC Programming with STEP 7 V5.5 under chapter "19.3.1 Uploading a Station".

No,i did not disconnect any of the other ports.

all the system nodes is already viewed,but i could not connect to any of them.

Hi,

What I have in mind is the Communication Resource limitation of the CPU. See What is the maximum number of OPs that a CPU S7-300 can communicate with?

I never seen this problem before but please keep us in the loop!

Hello Friend,

Check the cpu and I/o nodes individually via "edit ethernet nodes".

ensure that your pc is on same subnet. and try to access the cpu without memory card.

If cpu respond to pc, then try uploading with memory card.

Hello,

Please tell us the setting of Set PC/PG interface and also tell us the address of your CPU. 

I ask these questions as these should be an error in assigning addresses which will trigger the error you showed in the screen shot "33:16656"

Please see the followings:

How can you set up the online connection again between the PG and the CPU?

STEP7 Error Messages

wld2002

Hello,iam trying to upload the program from this system :

profinet io with ET200S cpu 6ES7 151-8AB00-0AB0;

the system is shown in the photo  ;

i plugin the ethernet  cable into port p1

p2 and p3 is connected to the other  devices.

the [display accessible nodes] is shown in the photo.

the problem is when trying to connect to ET200Scpu or any other device

it show this message:[Online:connection could not be established .the connection

partner is not responding]

please how can i upload from this cpu?

thanks;

 Have YOU any idea about IP of PLC, if yes have you try to ping it ,if not pinging you should check your pg port with other pingable device. For surity your pg Ethernet port.

( if possible you should upload or download in other spare PLC with use of Ethernet)

Hello,

There are another way to test Profinet network using the free software PRONETA

PRONETA

PRONETA 2.3.0.26 Commissioning and Diagnostics Tool for PROFINET

try to set hardware configuration carfully