Overview
The Turck BL67-8DI-P is a modular digital input slice designed for the BL67 fieldbus I/O family. It provides 8 independent digital input channels with PNP logic switching, galvanic isolation via optocouplers, and IP67 environmental protection. This module integrates seamlessly into machine-mounted or panel-mounted distributed I/O architectures, enabling real-time signal acquisition across multiple industrial communication protocols.
Key Features
- 8 digital inputs with PNP switching logic and 24 VDC rated sensors
- Galvanically isolated electronics protect against field-level interference
- IP67 enclosure rating ensures operation in wet, dusty, or washdown environments
- LED status and diagnostic indicators for quick troubleshooting
- Fieldbus-agnostic design; compatible with multiple industrial protocols
- Compact plug-in form factor for rapid hot-swap installation and removal
Technical Specifications
- Input Channels: 8 digital inputs, PNP
- Rated Voltage: 24 VDC
- Protection Class: IP67
- Ambient Temperature Range: −40 to +70 °C
- Connector Types: M8, M12, M23 (plug-in)
- Weight: 51 g (0.11 lb)
- Isolation: Optocoupler galvanic isolation
- Approvals: cULus
- Manufacturer Part Number: 6827170
Typical Applications
The BL67-8DI-P is widely deployed in:
- Manufacturing automation with distributed fieldbus architectures
- Packaging machinery and conveyor systems requiring remote signal monitoring
- Food and beverage production lines needing hygienic, washdown-rated I/O
- Machine tool control requiring tight integration at the point of use
- Automotive production cells utilizing modular I/O expansion
Compatibility & Replacements
Compatible With
- BL67 series base modules with M8, M12, or M23 connectors
- Multiple industrial fieldbus protocols (PROFINET, EtherNet/IP, PROFIBUS, CANopen, and others)
- Turck modular distributed I/O system architecture
- PLC and motion control systems supporting standard digital input signals
Replaces / Drop-In Replacement For
- Turck BL67-8DI-PD (variant with channel diagnostics)
- Turck BL67-8DI-N (NPN switching variant)
- Other 8-channel PNP digital input modules in the BL67 family
Works With
- TIA Portal (Siemens automation suite)
- Studio 5000 / Studio 5000 Logix Designer (Allen-Bradley)
- Mitsubishi GX Works engineering software
- PROFINET, PROFIBUS, EtherNet/IP, and CANopen fieldbus protocols
- Turck modular system software and configuration tools
