- 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 |
- 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 |
- 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)
Power terminal for installations with In-Rail-Bus system The 6.2 mm wide Power Terminal DZU 1401 are used for supplying the In-Rail-Bus DIN rail connector with supply voltage up to 32 V DC. The Power Terminal DZU1401 for standard applications with 4.5 A output current is able to power up to 120 signal converter.
Power terminal for installations with In-Rail-Bus system The 6.2 mm wide Power Terminal DZU 1402 are used for supplying the In-Rail-Bus DIN rail connector with supply voltage up to 32 V DC. The Power Terminal DZU1402 with two separate and reverse polarity protected voltage inputs allow a redundant voltage supply and a maximum current of 3 A. The status of the power supply of both voltage inputs will be displayed each by a LED on front. A green LED lights up when there is supply voltage on the voltage input. A red LED indicates reversed polarity.
 Ex- und UL-Anweisungen
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Safety caps right/left as a spare part (The kits includes safety caps)
Cost-effective and fast solution for small In-Rail-Bus installations. The In-Rail-Mini is used to put the supply voltage 24 V DC into the In-Rail-Bus connector. Line E is available for group messages, e.g. for a group error message. The In-Rail-Minis are available for DIN rail heights of 7.5 mm and 15 mm (see order information). There is room for up to 6 devices from our 6mm series on the in-rail minis.
The Modbus RTU Connection Module is used to connect the 24 V supply and the Modbus lines A and B to the In-Rail-Bus DIN rail connector. The power supply and the Modbus lines are connected to the terminals of the module (screw terminals). The connection to the In-Rail-Bus DIN rail connector is made via the rear spring contacts. All other DRAGO I/O modules are thus pre-wired via the In-Rail Bus with power supply and bus lines. DIP switches can be used to switch the termination and polarization resistors normally used for RS485 interfaces. An additional line is available for group messages, e.g. for a group error message, as far as this is supported by the I/O modules. The Modbus RTU connection module can also be used for feed out, especially if further modules are to be connected in separate installations. Additional terminals for the bus lines are provided for this purpose.
| User Manual |
| Modbus Manual |
System Requirements
- PC with Windows XP, Vista or Windows 7, 8, 10, 11
- USB interface
- USB converter
- USB driver (Download)
- Quick Start Guide (Download)
| User 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 |
- 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 |
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.