Control.com - Nerds in Control

i want to connect the SCADA in the control center to an IED in a substation over internet. which ports i have to open in my firewall to allow the communication?

You are better off to use OPC for this. With OPC you can ensure the security of your SCADA network and your connection to the Substations as you will open one port only for all the communication going in and out.

Here download this OPC Server:
http://www.matrikonopc.com/opc-drivers/opc-iec-61850/base-driver-de tails.aspx

and OPC Tunneller:
http://www.matrikonopc.com/products/opc-data-management/opc-tunnell er.aspx

The port that you will need to open is: 21379

Hopefully this is helpful

Cheers,
Wassim Daoud
Global Solutions Arcitect

> i want to connect the SCADA in the control center to an
> IED in a substation over internet. which ports i have to
> open in my firewall to allow the communication?

Whether you use OPC to your SCADA or not the TCP port used by IEC 61850 is 102. From the control center side you need your firewalls to pass packets directed to this port. On the substation side the firewall needs to accept incoming TCP connect requests to port 102.

If you use OPC with your SCADA consider this:
http://www.sisconet.com/ax-s4_61850.htm

Best Regards,
Ralph Mackiewicz
SISCO, Inc.