dl-breadcrumbs__homedl-breadcrumb-item__separatorConfiguration and programmingdl-breadcrumb-item__separator...dl-breadcrumb-item__separatorCyber securitydl-breadcrumb-item__separatorOpen Ports and Servicesdl-breadcrumb-item__separatorDefault open Ethernet ports of AC500 and AC500-eCo CPUs
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Default open Ethernet ports of AC500 and AC500-eCo CPUsdl-permalink__symbolPermalink

As part of the ABB security concept the AC500 V3 PLC comes with minimal services opened by default. Only the services needed for initial setup and programming are open before any user application is downloaded.

Default open Ethernet ports of AC500 V3 and AC500-eCo V3 CPUs:

Protocol

Port

ABB NetConfig 1)

UDP 24576

Communication between engineering software and PLC 2)

TCP 11740

OPC UA server 3)

TCP 4840

Remarks:

1): UDP port 24576 is used for initial setup of the network configuration (e.g. to set the initial IP address). This port does not provide any further functionality.

Port 24576 for ABB NetConfig protocol can be disabled via PLC configuration by deleting the protocol node from the configuration tree of Ethernet interfaces ETH1 and ETH2.

2): The TCP port 11740 is used for communication between the AC500 controller and the Automation Builder engineering software. This port does not provide any further functionality.

3): Port 4840 for OPC UA server is closed by default as of SystemFW V3.1.0.

Besides UDP port 24576 and TCP port 11740 no other proprietary protocols are used.