Output control module RBT30

Product information
The romutec RBT30 digital module is used to control and to manually override four digital outputs located on a DDC or other connected fieldbus devices. It includes four push-buttons each paired with an LED to indicate the corresponding output or message status. Digital outputs are driven by Modbus commands and can be used for controlling blinds, lighting circuits or similar loads.

Technical specifications

• Manufacturer: romutec Steuer- und Regelsysteme GmbH
• Model: RBT30
• Product number (SKU): 00003002
• Weight: 0.077 kg
• Release date (meta): 2026-04-28
• Digital outputs (DO): 4 (controllable via Modbus)
• Manual override: 4 push-buttons
• LEDs: signalling of up to 12 messages; LEDs can be controlled in Red, Green or Orange via Modbus
• LED lamp test: via bus command or locally using the lamp-test push-button
• Bus interface: Modbus (control of DO and LEDs via bus commands)
• Push-button query register available (reading the register clears the bits)
• Application examples: control of blinds, lighting circuits and similar devices
• Configuration notes: addressing, maximum number of modules per Modbus master, mounting and bus connection must be observed (see configuration chapter)