- High performance measuring input for all industrial sensors: Pt, Ni, TC, KTY, mA, V, mV, Ω, Pot, Hz, PWM
- Uni-/Bipolar and TRMS capture of current and voltage
- Easy configurable by DIP switch or USB interface
- 15 programmable user-specific settings directly selectable via DIP switches
- Freely scalable up to 247 DRAGO devices in one Modbus segment
- Protective Separation up to 300 V AC/DC, test voltage 3 kV
- Highest accuracy measuring resolution up to 24 bit
- Fast measured value processing high data rate
- In-Rail-Bus Connector for Modbus and power supply
- Extremely slim only 6.2 mm installation width
- Made in Germany 5 Years Warranty
Datasheet |
User Manual |
Modbus Manual |
- Acquisition of 4 industrial standard signals individually configurable as current or voltage input
- 4 galvanic isolated inputs protection against erroneous measurements due to parasitic voltages or ground loops
- Protective 5 port separation up to 300 V AC/DC, Test voltage 3 kV
- Fast signal acquisition high measuring rate, short processing times
- In-Rail-Bus connector for Modbus and Power Supply allows fast and economical installation
- Freely scalable up to 247 DRAGO Module in one Modbus segment
- Extremely slim design 6.2 mm slim housing for a simple and space saving, DIN rail mounting
- 5 Years Warranty Defects occurring within 5 years from delivery date shall be remedied free of charge at our plant (carriage and insurance paid by sender)
Datasheet |
User Manual |
Modbus Manual |
- Verarbeitung von 4 Industrie-Normsignalen einzeln konfigurierbar als Strom- oder Spannungssignal
- 4 galvanisch getrennte I/O Kanäle Schutz vor Messfehlern durch Erdungsprobleme und Störspannungsverschleppung
- Sichere 5-Port-Trennung bis 300 V AC/DC, Prüfspannung 3 kV
- Schnelle Signalerfassung hohe Messrate, kurze Verarbeitungszeit
- In-Rail-Bus Konnektor für Modbus und Versorgung, erlaubt eine schnelle und kostengünstige Installation
- Frei skalierbar bis zu 247 DRAGO Module in einem Modbus-Segment
- Extrem schmale Bauform 6,2 mm schmales Anreihgehäuse für eine einfache und platzsparende Hutschienen-Montage
- Made in Germany 5 Jahre Garantie
Datasheet |
User Manual |
Modbus Manual |
- 4 channels independent controllable digital I/Os
- Each channel programmable as input or output
- Programmable switch-ON and switch-OFF behavior
- Extensive programmable operating functions Frequency or counter input, frequency, puls or PWM outputs
- Protective 5-way separation up to 300 V AC/DC, test voltage 3 kV
- Status indication for each channel
- In-Rail-Bus Connector for Modbus and power supply
- Extremely slim only 6.2 mm installation width
- Made in Germany 5 Years Warranty
Datasheet |
User manual |
Modbus Manual |
- 4 channels 4 independent power relays
- Programmable switch-ON and switch-OFF behavior
- Extensive programmable operating functions such as limit value monitoring
- Protective 5-way separation up to 300 V AC/DC, test voltage 3 kV
- Status indication for each relay
- In-Rail-Bus Connector for Modbus and power supply
- Extremely slim only 6.2 mm installation width
- Made in Germany 5 Years Warranty
Datasheet |
User Manual |
Modbus Manual |
5-wire bus system for DIN rail DIN rail profile and bus length, see table (Complete kit without DIN rail)
- Passive feed terminal for installations with the In-Rail bus system
- Used to feed the supply voltage up to 32 VDC into the In-Rail bus rail connector
- Designed for an input current up to 4.5 A
- Direct connection to the In-Rail bus via 2 inputs
- Narrow 6.2 mm design for space-saving control cabinet installations
- Connection via captive plus/minus terminal screws
- Power feed module for supply voltages up to 32 VDC
- Designed for input currents up to 3 A
- 2 redundant inputs, decoupled via diodes
- Operating and fault signalling via green / red LED
- Approvals for UL Class I, Div. 2 as well as ATEX / IECEx Zone 2
- Narrow 6.2 mm design for space-saving installations

Ex- und UL-Anweisungen
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Safety caps right/left as a spare part (The kits includes safety caps)
- Modbus RTU connection module for installations with the In-Rail bus system
- Used to connect the 24 V supply as well as Modbus lines A and B
- Connection to the In-Rail bus rail connector via rear spring contacts
- Supply and bus wiring of additional DRAGO I/O modules via the In-Rail bus
- RS485 termination and polarization resistors can be switched via DIP switches
- Additional signal line for group messages such as collective fault messages
- Can also be used for feed-out in spatially separated installations
User Manual |
Modbus Manual |
- Input for Standard Signals 0-20 mA, 4-20 mA, 0-10 V, 0-5 V
- In-Rail-Bus Connector for Modbus and power supply
- Protective Separation up to 300 V AC/DC, test voltage 3 kV
- Easy configurable via DIP switches or Modbus interface
- Freely scalable up to 247 measuring inputs in one Modbus segment
- Extremely slim only 6.2 mm installation width
- Made in Germany 5 Years Warranty
Datasheet |
User Manual |
Modbus Manual |
- Cost-effective and quick solution for smaller In-Rail installations
- Used to feed the 24 VDC supply voltage into the In-Rail bus rail connector
- Suitable for group signals, e.g. collective fault messages
- Available for 35 × 7.5 mm or 35 × 15 mm DIN rails
- Supports up to 6 DRAGO modules of the 6 mm series
- Compact design with 75 mm total length
System Requirements
- PC with Windows XP, Vista or Windows 7, 8, 10, 11
- USB interface
- USB converter
- USB driver (Download)
- Quick Start Guide (Download)
Datasheet |
Systemvoraussetzungen
- PC mit Windows XP, Vista oder Windows 7, 8, 10
- USB-Schnittstelle
- USB-Konverter
Modbus I/O Modules for Control Cabinets and Automation Systems
Modbus I/O modules are interface devices providing digital and/or analog inputs and outputs, which communicate via the Modbus protocol. They allow sensors, meters, actuators or switches spread across a plant or distribution board to connect to a central controller or SCADA system. This enables centralized data collection, control and monitoring with minimal wiring effort.
Questions & Answers
What is a Modbus I/O module?
It is a peripheral device offering several input and output channels (digital or analog), connected to a controller or PLC via Modbus (e.g. Modbus RTU over RS-485 or Modbus TCP). It collects inputs (sensor signals, contacts) and provides outputs (digital switching, analog control) in a flexible way.
Which types of inputs and outputs are supported?
Depending on the module, supported channels may include digital inputs (switches, contacts), digital outputs (relays, transistors), analog inputs (voltage, current, sensor signals), analog outputs (voltage or current signals), or combinations. This makes it possible to interface a variety of sensors, meters and actuators.
How does communication to a controller work?
The module uses the Modbus protocol (RTU or TCP) to exchange data. Inputs are read by the master (e.g. PLC or SCADA), outputs are set via Modbus commands. This enables data centralization and control over a common bus instead of individual wiring for each signal.
Where are Modbus I/O modules typically used?
They are used in automation systems, energy monitoring, machine control, building management, distribution panels, decentralized measurement points, and any application where many sensors/actuators are present and a bus-based central integration is desired.
What are the advantages of using Modbus I/O modules?
They reduce wiring complexity, allow scalable and flexible expansion, simplify signal integration, centralize data access, and support various sensor and actuator types — making system extension and maintenance easier.
What should be considered when selecting a Modbus module?
You need to match required input/output types (digital/analog), number of channels, signal ranges, communication type (RTU or TCP), required galvanic isolation or protection, and compatibility with existing control equipment.
How is setup and configuration done?
Addressing and configuration (channel assignment, signal type, scaling, baud rate, parity etc.) is typically done via configuration tools or front-panel settings. Once configured, the module communicates over Modbus and can be read or controlled by the master.
Is Modbus a standard protocol and widely supported?
Yes — Modbus is a widely used open communication standard. Modules from different manufacturers are largely compatible as long as communication settings match. This ensures interoperability and flexibility.

Datasheet