Overview
The Turck BL67-8DI-P is an 8-channel digital input module designed for modular on-machine I/O systems. This IP67-rated module provides reliable signal acquisition across a wide range of fieldbus platforms and connection technologies. Operating at 24VDC with PNP switching logic, the BL67-8DI-P integrates seamlessly into distributed automation architectures without protocol dependency.
Key Features
- 8 digital inputs with PNP switching (positive logic)
- IP67 protection class for harsh industrial environments
- 24VDC supply voltage
- Status and diagnostic LEDs for real-time monitoring
- Galvanic isolation via optocouplers for noise immunity
- Fieldbus-independent architecture compatible with multiple protocols
- Plug-in M8/M12/M23 connector mounting
- cULus approved for industrial use
Technical Specifications
- Input Type: Digital (8 channels)
- Supply Voltage: 24 VDC
- Switching Logic: PNP
- Protection Class: IP67
- Operating Temperature: -40 to +70°C
- Connection Technology: M8, M12, M23 connectors
- Mounting: Plug-in module (requires compatible base)
- Weight: 51 grams
- Approvals: cULus
- Isolation: Galvanically separated via optocouplers
Typical Applications
- Machine tool control and monitoring
- Conveyor and material handling systems
- Packaging machinery I/O expansion
- Factory automation signal acquisition
- Distributed I/O for decentralized control architectures
- Equipment status and sensor monitoring
Compatibility & Replacements
Compatible With
- Turck BL67 modular I/O base modules
- M8, M12, M23 fieldbus connector systems
- CANopen, PROFIBUS, EtherCAT, PROFINET (protocol-independent module)
- Industrial distributed I/O networks
Replaces / Drop-In Replacement For
- BL67-8DI-P (alternative versions with different switching logic or diagnostics available)
- Direct replacement for OEM part 6827170
Works With
- Turck Modular I/O (BL67 Series) ecosystem
- Multi-protocol fieldbus systems (CANopen, PROFIBUS, EtherCAT, PROFINET)
- Studio 5000 via appropriate gateway modules
- Any PLC with compatible M8/M12/M23 I/O interface
- Quick Start-Up (QC) and Fast Start-Up (FSU) applications
