Description
Introduction
The ABB IPS/S3.1.1 is a KNX IP Interface, MDRC, designed to connect the KNX bus with an Ethernet network. It uses the KNXnet/IP protocol for communication via tunneling and belongs to the ABB KNX product range.

For engineering and commissioning workflows, KNX devices can be programmed via the LAN using ETS. The device supports a fixed IP address or an IP address received from a DHCP server, and it can be powered via 12..30 V DC or PoE.
Key Features
- Brand: ABB
- SKU: IPS/S3.1.1
- Extended Product Type: IPS/S3.1.1
- Catalog Description: IPS/S3.1.1 IP Interface, MDRC
- Communication Interface: Ethernet
- Compatible Bus Systems: KNX (IP)
- KNX Certificate: 9AKK105710A0049
- Number of LEDs: 3
Benefits
- Connects the KNX bus with an Ethernet network for KNXnet/IP tunneling communication.
- Supports ETS programming of KNX devices via the LAN.
- Provides 5 Tunneling Server for ETS and further clients.
- Allows IP addressing either as a fixed IP address or via DHCP server.
- Supports power supply via 12..30 V DC or PoE.
- Specified with IP20 degree of protection for suitable indoor installation environments.
Technical Specifications
Applications
- KNX bus connection to an Ethernet network.
- ETS programming of KNX devices via LAN.
- KNXnet/IP tunneling communication for ETS and further clients.
- Use in KNX gateway and system interface applications where the specified ABB IPS/S3.1.1 model is required.
Installation Notes
- Verify that the ordered model and SKU are exactly ABB IPS/S3.1.1 before procurement or installation.
- Confirm the intended IP addressing method: fixed IP address or DHCP server.
- Plan the power supply according to the stated options: 12..30 V DC or PoE.
- Use the device only in environments appropriate for its IP20 degree of protection.
- Refer to the official Instructions and Manuals document 2CDG941171P0001 before installation and commissioning.
Developer Resources
- Manufacturer product page: https://new.abb.com/products/en/2CDG110177R0011/ips-s3-1-1
- Product ID: 2CDG110177R0011
- Instructions and Manuals: 2CDG941171P0001
- Declaration of Conformity – CE: 2CDK502091D2701
- KNX Certificate: 9AKK105710A0049
- KNXbazzar category page: https://knxbazzar.com/product-category/knx-gateway/
- ABB brand page on KNXbazzar: https://knxbazzar.com/knxshop/?brand=abb
FAQ
What is the ABB IPS/S3.1.1 used for?
The ABB IPS/S3.1.1 connects the KNX bus with an Ethernet network and uses the KNXnet/IP protocol for tunneling communication.
Can KNX devices be programmed through this interface?
Yes. KNX devices can be programmed via the LAN using ETS.
How many tunneling servers are available?
The product description states that 5 Tunneling Server are available for ETS and further clients.
How is the IP address assigned?
The IP address can be fixed or can be received from a DHCP server.
What power supply options are stated for the ABB IPS/S3.1.1?
The product data states power supply via 12..30 V DC or PoE.
What is the exact product model?
The order/model code for this page is IPS/S3.1.1. Match it against project documents before purchase.
Conclusion
The ABB IPS/S3.1.1 is a KNX IP Interface for connecting the KNX bus to Ethernet using KNXnet/IP tunneling, with ETS programming via LAN, 5 Tunneling Server, fixed or DHCP IP addressing, and power via 12..30 V DC or PoE.









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