I have a Momentum M1 processor that was installed about three years ago and programmed by an outside contractor. The contractor did not leave a copy of the program, nor was he kind enough to write the processor IP address on the front of the equipment.

How could I determine what the IP address is so I can get online with the processor and upload the program? I am using Proworx NXT.

 

If your programmer make the last modification as in "not protected", then you can connect to Momentum and can upload the application. But how do you want to connect to the CPU is you don't know the IP address?? Serial port? then you have chance. Good luck.

 

You will have to use a third party utility like ethereal. It is a free download of the web. Using Ethereal it is possible to monitor commu nications on an Ethernet network and see the IP addresses of devices on the network.

http://www.ethereal.com/

You can not use Prowork, or any other Schneider s/w to find out the IP address.

You need to install Ethereal on your PC. Your PC needs to have Etherent connectivity. You must have some idea what the IP address is. As it has to be on the same addressing range as any other Ethernet device on the network. Can you not examine the program of another device on the network to see what devices it is talking to?

 

1. At command prompt screen write "ipconfig /all"
When you are connected, maybe it helps you but i am not sure.

2. PLC when you upload (s7 V5.2) at S7400, all PLCs' ip addresses can be seen at upload screen.

Regards

 

If you know the subnet the PLC is sitting on, ping the broadcast address. Then inspect the arp table afterwards.

For example:
If the subnet was 192.168.1.0 with a subnet of 255.255.255.0

Then, run:

ping 192.168.1.255

Finally, inspect the arp table:
arp -a

That might work.

 

Is there a MAC address on the module? This is usually printed on the manufacturer's label. If you can find the MAC address you should be able to make a manual entry in the Windows ARP table and get started from there. I used to do this sort of stuff years ago when I used Modbus/TCP but I have since forgotten the details.

Since then I have started using Foundation fieldbus HSE. One of the many neat features of this protocol is that it regularly makes spontaneous annunciations telling the world its IP address. Any specific HSE tool or any generic IP/Ethernet sniffer will discover the address.... Very easy.

Jonas

 

I've used Wireshark in the past. Run the program while connected and look at which IP addresses are being displayed, then turn your PLC on and watch for new addresses.

 

Use a USB cable or Ethernet cable to connect your computer to the Momentum M1 processor.