Converter Modbus RTU Slave RS485 / KNX - HD67813-KNX-485-B2
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- Converter Modbus RTU Slave RS485 / KNX - HD67813-KNX-485-B2
Converter Modbus RTU Slave RS485 / KNX - HD67813-KNX-485-B2
The ADFweb HD67813-KNX-485-B2 exposes KNX TP bus values to a Modbus RTU Master system. It operates as a Modbus RTU Slave RS485 on the Modbus side and responds to requests from the supervisory device. More
Code: HD67813-KNX-485-B2
The ADFweb HD67813-KNX-485-B2 exposes KNX TP bus values to a Modbus RTU Master system. It operates as a Modbus RTU Slave RS485 on the Modbus side and responds to requests from the supervisory device. More
Code: HD67813-KNX-485-B2
ADFweb HD67813-KNX-485-B2
Modbus RTU Slave RS485 / KNX
The ADFweb HD67813-KNX-485-B2 exposes KNX TP bus values to a Modbus RTU Master system. It operates as a Modbus RTU Slave RS485 on the Modbus side and responds to requests from the supervisory device.
We will check your selection and prepare a quotation
Send us the device models, required connection and quantity.
Converter applications
Use it to connect an existing PLC or supervisory application to KNX values. It provides bidirectional mapping of up to 1,440 bytes for reading and 1,440 bytes for writing.
Technical specifications HD67813-KNX-485-B2
| Order code | HD67813-KNX-485-B2 |
|---|---|
| Protocol connection | Modbus RTU Slave RS485 / KNX |
| Roles and version | Modbus RTU Slave RS485; KNX TP |
| Interfaces and ports | KNX TP; RS485; Ethernet RJ45 for configuration |
| KNX TP data rate | 9 600 bit/s |
| Data capacity | 1440 bytes in each direction |
| Converter power supply | 8-24 V AC / 12-35 V DC |
| Consumption at 24 V DC | 3.5 W |
| Operating temperature | -40 °C to +85 °C |
| Mounting | 35 mm DIN rail |
| Dimensions of the version shown (D × W × H) | 60 × 71 × 95 mm |
| Device weight | approximately 200 g |
| Configuration software | SW67813 |
For an older device, check the hardware version and connections against its label.
Communication and configuration
In SW67813, configure RS485 baud rate, parity and addressing, the KNX device address and telegram reception and transmission. Map Modbus registers to KNX group addresses and define the meaning of the transferred data. The Ethernet port is used for configuration and updates.
An external Modbus RTU Master must send read and write requests. This model does not independently poll other Modbus Servers or Slave units; check the communication roles of both sides when selecting it. The converter uses a TP bus on the KNX side. Prepare group addresses, data types and the required transfer direction; check the power supply for both the KNX bus and the converter.
Supply and accessories
Please provide the complete order code. If you need a power supply, connection cables or help with configuration, include them in your enquiry. We will confirm the scope of supply and required accessories for your installation in the quotation.
Documentation and software
Diagrams and hardware version

The images help identify the hardware version. When replacing an older unit, compare its label, connectors and dimensions; we will confirm the version to be supplied in the quotation.
Frequently asked questions
Is knowing the two protocols enough?
The device roles, physical interfaces and data to be transferred must also be checked. An external Modbus RTU Master must send read and write requests. This model does not independently poll other Modbus Servers or Slave units; check the communication roles of both sides when selecting it. The converter uses a TP bus on the KNX side. Prepare group addresses, data types and the required transfer direction; check the power supply for both the KNX bus and the converter.
How is this converter configured?
In SW67813, configure RS485 baud rate, parity and addressing, the KNX device address and telegram reception and transmission. Map Modbus registers to KNX group addresses and define the meaning of the transferred data. The Ethernet port is used for configuration and updates.
What information should I send to check the selection?
Send the exact device models at both ends, the protocols and communication roles, the number of devices and the required values. For a PLC, include the firmware and method of accessing its data.
FOXON support with selection and ordering
Selection based on your devices
We will review the specific connection, communication roles and required data.
Availability check
Before you place an order, we will confirm current availability and the possible delivery date.
Documentation for the exact order code
We select the documentation and configuration tool using the complete order code.
Accessories for your installation
We will include the requested accessories in the quotation to suit the connection arrangement.
Choosing the correct version
Two devices with the same protocols can have different functions. Check the gateway role on each side, the connectors and the complete order code.
An external Modbus RTU Master must send read and write requests. This model does not independently poll other Modbus Servers or Slave units; check the communication roles of both sides when selecting it. The converter uses a TP bus on the KNX side. Prepare group addresses, data types and the required transfer direction; check the power supply for both the KNX bus and the converter.
Converter enquiry HD67813-KNX-485-B2
Provide the order code, quantity and the devices you need to connect. We will check the suitable version and prepare a quotation.
Request the converterTechnical specifications HD67813-KNX-485-B2
| Order code | HD67813-KNX-485-B2 |
|---|---|
| Protocol connection | Modbus RTU Slave RS485 / KNX |
| Roles and version | Modbus RTU Slave RS485; KNX TP |
| Interfaces and ports | KNX TP; RS485; Ethernet RJ45 for configuration |
| KNX TP data rate | 9 600 bit/s |
| Data capacity | 1440 bytes in each direction |
| Converter power supply | 8-24 V AC / 12-35 V DC |
| Consumption at 24 V DC | 3.5 W |
| Operating temperature | -40 °C to +85 °C |
| Mounting | 35 mm DIN rail |
| Dimensions of the version shown (D × W × H) | 60 × 71 × 95 mm |
| Device weight | approximately 200 g |
| Configuration software | SW67813 |
For an older device, check the hardware version and connections against its label.