Converter Modbus TCP Master / MQTT - HD67935-B2
Converter Modbus TCP Master / MQTT - HD67935-B2
The ADFweb HD67935-B2 connects Modbus TCP devices to applications using MQTT. It reads and writes Modbus TCP values as a Master; their transfer over MQTT is defined in the configuration. More
Code: HD67935-B2
The ADFweb HD67935-B2 connects Modbus TCP devices to applications using MQTT. It reads and writes Modbus TCP values as a Master; their transfer over MQTT is defined in the configuration. More
Code: HD67935-B2
ADFweb HD67935-B2
Modbus TCP Master / MQTT
The ADFweb HD67935-B2 connects Modbus TCP devices to applications using MQTT. It reads and writes Modbus TCP values as a Master; their transfer over MQTT is defined in the configuration.
We will check your selection and prepare a quotation
Send us the device models, required connection and quantity.
Converter applications
It transfers values from Modbus TCP devices to a system with an MQTT broker and writes selected values in the opposite direction. Before commissioning, check the data structure, network access to the broker and its required connection parameters.
Technical specifications HD67935-B2
| Order code | HD67935-B2 |
|---|---|
| Protocol connection | Modbus TCP Master / MQTT |
| Converter roles | Modbus TCP Master/Client; MQTT connection to a broker |
| Interfaces and ports | 1× Ethernet RJ45 |
| Power supply | Confirm against the label and hardware version before ordering |
| Power 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 × 35 × 95 mm |
| Device weight | approximately 200 g |
| Configuration software | SW67935 |
We will confirm the supply range for this model against the specific hardware version. Always check the device label before connecting the power supply.
Communication and configuration
In SW67935, configure Modbus TCP, the MQTT connection and the variables sent to the broker or written to the devices. Operation requires suitable MQTT infrastructure.
The HD67935-B2 is the Ethernet version. The mobile GPRS variant has a different order code. Check compatibility with the specific broker, authentication and security against the required configuration and firmware.
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. The HD67935-B2 is the Ethernet version. The mobile GPRS variant has a different order code. Check compatibility with the specific broker, authentication and security against the required configuration and firmware.
How is this converter configured?
In SW67935, configure Modbus TCP, the MQTT connection and the variables sent to the broker or written to the devices. Operation requires suitable MQTT infrastructure.
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.
The HD67935-B2 is the Ethernet version. The mobile GPRS variant has a different order code. Check compatibility with the specific broker, authentication and security against the required configuration and firmware.
Converter enquiry HD67935-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 HD67935-B2
| Order code | HD67935-B2 |
|---|---|
| Protocol connection | Modbus TCP Master / MQTT |
| Converter roles | Modbus TCP Master/Client; MQTT connection to a broker |
| Interfaces and ports | 1× Ethernet RJ45 |
| Power supply | Confirm against the label and hardware version before ordering |
| Power 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 × 35 × 95 mm |
| Device weight | approximately 200 g |
| Configuration software | SW67935 |
We will confirm the supply range for this model against the specific hardware version. Always check the device label before connecting the power supply.