IoT 2040 connection, "ping: bad address"

 Yes i can ping my engineering PC with my IOT

bergmanu

Can you ping your engineering PC with your IOT?

 Yes i can ping the router as well.

bergmanu

And the router too?

 But for this IOT its not working.

Yes i have other connections & all other devices have good internet connection.

By the way, i have now moved to another location. Now using different internet connection (this time i have an internet which allows me to use DHCP. 

Now my connection is like below:

I have one ethernet cable from PC to IOT eth0 and another ethernet cable fro  IOT eth1 to my internet router (i managed to successfully install the node red s7 node).

I managed to open the node-red webserver & everything after that (but i had problem with my ethernet cable connection to PLC) where it resulted in error in connection to the PLC.

No i have connected like below (laptop to a network switch then followed by network switch to IOT eth0 & another from network switch to the PLC). 

One more cable from the internet router to the the IOT eth1.

Now when i try to start the node-red from putty. I am getting the message: error: port in use.

I will attach a screenshot here.

Please help me.

Thank you.

bergmanu

Then this should work..

Do you have any other devices connected to the router? If yes, do they have connection to the internet? Are you sure the router is working?

 Sorry i am not sure on how to check if the auto start option is activated for node-red.

Can you advise me on hoe to check for this? And should i disable the auto start?

Thank you in advance.

bergmanu

Do you have the autostart option activated for node-red?If yes you have started node-red twice and becuase of this the port is already in use.

Best regards!

Here you should find your questions answered. The fourth entry is especially helpful.

https://support.industry.siemens.com/tf/ww/en/posts/how-to-start-node-red/159074/?page=0&pageSize=10

And yes, I think, autostarting it and rebooting the IOT might be helpful.

Yes, now i have enabled the auto start of the node-red by following the steps mentioned in the link that you have shared earlier.

Now i have problem getting to read the values (meaning the change in values is not being displayed on the screen when the value changes (as shown in the document S7_Comunication_node-red_V1.0). The variable address that i have keyed in to the node-red webserver variables table are:

DB1,BOOL0 

DB1,BOOL1

Is the above method is correct? I have clicked on "deploy" button after following all steps in the above mentioned document.

But then when i try to key in the path inside the putty, there is this message keep appearing "some name" is a directory (i have followed as shown in the example document).

Can anyone advise me on how i can get the values displayed like shown in the document?

Thank you in advance.

JDarius

Here you should find your questions answered. The fourth entry is especially helpful.

https://support.industry.siemens.com/tf/ww/en/posts/how-to-start-node-red/159074/?page=0&pageSize=10

And yes, I think, autostarting it and rebooting the IOT might be helpful.