Description
BARTEC 07-7331-23051000 controller
Brand Overview
- Brand Name: BARTEC
- Company Profile: Founded in Germany, BARTEC is a recognized worldwide leader in explosion protection safety engineering. BARTEC designs and manufactures specialized automation, I/O systems, and control components certified for deployment directly inside hazardous locations (Ex-Zones). Their equipment ensures reliable digital and analog signal transmission without the risk of igniting surrounding flammable gases, vapors, or combustible dust.

07-7331-23051000
Product Identification & Model Breakdown
This device belongs to the BARTEC MODEX series of explosion-proof, decentralized fieldbus I/O modules.
- Model Number:
07-7331-2305/1000(frequently written as07-7331-23051000or07-7331-2305) - Product Name: BARTEC MODEX PROFIBUS Digital Input/Output Interface Module
- Model Designation Breakdown:
07-7331-: BARTEC product family code for MODEX PROFIBUS-DP fieldbus interface units.2305: Designates a Digital I/O Module configuration (engineered for processing discrete binary switching signals such as limit switches, proximity sensors, pushbuttons, and valve actuators)./1000: Hardware version code specifying the channel density, voltage levels, and intrinsic safety loop configuration.
Key Technical Specifications & Features
- Signal Type: Digital / Discrete Inputs and Outputs (Binary I/O).
- Fieldbus Protocol: PROFIBUS-DP interface via RS-485 connections.
- Explosion Protection Certification: Certified for direct installation inside Zone 1 / Zone 21 hazardous areas (typically rated
Ex db e [ia Ga] IIC GborEx de [ia] IIC). - Safety Isolation Concept: The module housing utilizes Flameproof (
Ex d) / Increased Safety (Ex e) protection, while the field wiring connection terminals are Intrinsically Safe (Ex i). This guarantees that even a short circuit on field cabling will not produce a spark or thermal energy sufficient to ignite explosive atmospheres. - Addressing & Setup: Onboard rotary switches on the module front panel for manual PROFIBUS node address assignment (addresses 01–99).
- Onboard Diagnostics:
- System/Bus LEDs: Visual status indicators for PROFIBUS communication status (
ON,BF– Bus Fault,SF– System Fault). - Channel LEDs: Individual status LEDs for real-time channel activity monitoring and quick identification of open circuits or short faults.
- System/Bus LEDs: Visual status indicators for PROFIBUS communication status (
Application Scenarios (Use Cases)
- Hazardous Area Discrete Signal Acquisition: Reading binary states (ON/OFF) from proximity switches, emergency stop buttons, position sensors, and limit switches mounted directly on machines in Zone 1/Zone 2 hazardous environments.
- Field Actuator Control: Driving discrete field devices, such as solenoid valves, signaling beacons, alarms, or relay contacts located inside hazardous zones.
- Decentralized Fieldbus Cabling: Placing the MODEX module close to the process equipment inside a local field-mounted Ex-enclosure. Digitizing discrete I/O signals at the field level allows them to be transmitted back to the central PLC/DCS over a single PROFIBUS network cable, dramatically reducing cable tray weight, engineering design time, and installation costs.
Target Industries
The 07-7331-2305/1000 module is deployed in industrial environments requiring both hazardous area safety and fast discrete control:
- Oil & Gas (Upstream & Downstream): Offshore oil platforms, FPSO vessels, gas metering stations, and refinery process units.
- Chemical & Petrochemical: Chemical synthesis plants, batch processing reactors, and hazardous tank storage farms.
- Pharmaceuticals: Active Pharmaceutical Ingredient (API) processing areas utilizing volatile solvents.
- Marine & Offshore: Chemical tankers, LNG/LPG carriers, and offshore drilling rigs.
- Combustible Dust & Grain Handling: Facilities with dust explosion risks, such as coal handling plants, starch processing, and grain storage silos.


