Digital I/O module FBB-4DI2DO-R.230
RS-485Modbus RTU4-I

Digital I/O module - FBB-4DI2DO-R.230 - Romutec Steuer- u. Regelsysteme GmbH - RS-485 / Modbus RTU / 4-I
Digital I/O module - FBB-4DI2DO-R.230 - Romutec Steuer- u. Regelsysteme GmbH - RS-485 / Modbus RTU / 4-I
Digital I/O module - FBB-4DI2DO-R.230 - Romutec Steuer- u. Regelsysteme GmbH - RS-485 / Modbus RTU / 4-I - image - 2
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Characteristics

Signal type
digital
Interface
Modbus RTU, RS-485
Number of inputs/outputs
4-I, 2-O
Type
remote, decentralized
Applications
centralized automation
Mounting
DIN rail
Size
mini
Other characteristics
relay

Description

Overview
Modules FBB-4DI2DO-R.230 provide four digital inputs and two relay outputs for decentralized switching. They are intended for control of motor-operated fire dampers with end-position feedback (end switches OPEN/CLOSED) and for general remote I/O datapoints.

Measured runtimes for motor-operated fire dampers
Measured runtimes are logged on each damper operation. The system records total opening and closing times and dead time (delay until movement is detected). Logged times are compared to commissioning maximum values stored in dedicated properties.

Variants and options
  • Supply voltage: 24V or 230V (on R.230 variant the supply voltage is switched to the relay outputs as the output signal).
  • Option "AMP": variants with special connector sockets for connecting fire dampers with pre-assembled cables.

Additional notes
  • FBB-4DI2DO.R.xxx and FBB-2DI1DO.R.xxx are available in different variants.
  • Typical applications: decentralized switching, control of two fire dampers with end-switch feedback, general remote I/O datapoints.

Technical specifications
  • Model: FBB-4DI2DO-R.230
  • Function: 4 digital inputs, 2 relay outputs
  • Relay output rating: 230V / 16A
  • Supply voltage options: 24V or 230V (R.230 variant uses supply as relay output signal)
  • Option: "AMP" connector variants available
  • Suitable for: motor-operated fire dampers with end-switch feedback; general decentralized datapoints (Remote I/O)
  • Measured runtime logging per damper run (open/close total time and dead time), compared to commissioning max values
  • Manufacturer: romutec Steuer- und Regelsysteme GmbH
  • Product number / SKU: 00003217
  • Weight: 0.501 kg
  • Release date: 2026-04-28

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.