Scenario: ADS connection through a firewall

This example is used to describe how an ADS device (e.g. TwinCAT Engineering PC, third-party Scada systems etc...) can communicate with a TwinCAT Runtime through a firewall.

Scenario: ADS connection through a firewall 1:

Firewallrules/Portfilter settings

You must configure following rules for incoming connections to your TwinCAT Runtime to establish the ADS communication:

Direction

Port(dec)

Port(hex)

Protocol

Action

Incoming

48898

0xBF02

TCP

Allow

Incoming

48899

0xBF03

UDP

Allow