Need to connect ADS and Modbus? The Weble WBox routes ADS Modbus natively: one gateway speaks both protocols and maps data points in real time — no PC, no middleware, no cloud dependency.

ADS⇄WBoxgateway⇄ModbusOne WBox gateway · native conversion · no PC

The protocols

ADS

ADS is the native protocol of Beckhoff TwinCAT PLCs.

ADS driver →

Modbus

Modbus (TCP/IP and RTU) connects PLCs, meters, variable-speed drives and countless industrial devices.

Modbus driver →

Example deployment

Typical scenario Beckhoff PLC ⇄ Modbus drives A machine or plant is controlled by a Beckhoff TwinCAT PLC, but the variable-speed drives, energy meters and inverters around it speak Modbus. The WBox bridges ADS variables to Modbus registers both ways, so the PLC reads power and status and issues setpoints without a fieldbus card per device. Technical documentation →

How the WBox bridges ADS and Modbus

On the WBox you enable the ADS driver and the Modbus driver, then map each point: a value read on the ADS side — the Beckhoff TwinCAT PLC protocol — is exposed on the Modbus side — the industrial register-based protocol — and vice-versa. Conversion, scaling and logic run on the gateway itself.

Capacity & limits

  • Modbus — Modbus addresses up to 247 slaves per line (RTU or TCP) — about 32 RTU devices per RS-485 segment before a repeater.

On the WBox, a driver licence enables the whole protocol — there is no artificial per-point tier to unlock. Capacity scales with the gateway model, from the compact S103 to the E413: you are bounded by the field bus, not by your licence.

Frequently asked questions

How do I connect ADS and Modbus?

ADS is the Beckhoff TwinCAT PLC protocol and Modbus is the industrial register-based protocol. A single WBox gateway runs the ADS and Modbus drivers, speaks both protocols at once and maps the data points between them — no PC, no middleware, no cloud dependency.

Is the ADS ⇄ Modbus bridge bidirectional?

Yes. The WBox reads and writes on both sides: a value or command on the ADS side propagates to Modbus, and vice-versa.

Do I need a PC, a PLC or proprietary hardware?

No. The ADS and Modbus drivers are licence-activated on one WBox — no gateway PC, no intermediate PLC and no proprietary hardware.

Which WBox model do I need?

Any WBox with the ADS and Modbus driver licences. The online configurator recommends the right model from your interfaces and point count.

Route ADS Modbus on your project

Find the right WBox gateway for your installation, or get in touch to validate your case.

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