Overview
The Turck BL67-8DI-P is a modular digital input interface designed for distributed I/O applications on the factory floor. This IP67-rated module provides 8 independent digital inputs with PNP switching logic and operates at 24VDC, making it compatible with standard industrial control voltage supplies. Field-tested across a wide range of fieldbus systems, the BL67-8DI-P integrates into existing automation networks without firmware or protocol modifications.
Key Features
- 8 digital input channels, PNP configuration (positive switching)
- IP67 protection class for harsh, wet, and dusty environments
- Galvanic isolation via optocouplers to eliminate noise and ground loops
- Status and diagnostic LEDs for real-time field troubleshooting
- M8, M12, and M23 quick-disconnect connectors
- Supports all major fieldbus protocols (PROFINET, EtherNet/IP, Modbus, PROFIBUS, and others)
- Compact, plug-in design for DIN rail or machine-mounted installation
Technical Specifications
- Input Channels: 8 digital inputs (PNP)
- Supply Voltage: 24 VDC nominal
- Input Logic Levels: 0 = 0–5 VDC, 1 = 15–30 VDC (typical)
- Protection Rating: IP67
- Operating Temperature: -40 to +70°C
- Connector Options: M8, M12, M23
- Weight: 51 g (1.8 oz)
- Certification: cULus, RoHS Compliant
- Manufacturer Part Number: 6827170
- Series: BL67 Modular On-Machine I/O
Typical Applications
- Sensor signal capture and discrete input monitoring on production lines
- Distributed control nodes for multi-machine manufacturing cells
- Panel-mount or machine-mounted digital signal aggregation
- Food & beverage, automotive, and heavy machinery automation
- Remote or isolated point-of-use control architectures
- Environments requiring IP67-rated fieldbus devices
Compatibility & Replacements
Compatible With
- Turck BL67 base modules and gateway devices
- PROFINET, EtherNet/IP, Modbus RTU/TCP, PROFIBUS, and other fieldbus systems
- Industrial PLCs and distributed I/O controllers
- Allen-Bradley ControlLogix, CompactLogix, and Micro800 systems via proper gateway
- Siemens S7-1200, S7-1500, and S7-400 via PROFINET or gateway
- Mitsubishi, Omron, and Schneider PLCs via supported protocols
Replaces / Drop-In Replacement For
- Turck BL67-8DI (earlier versions without diagnostic enhancements)
- Direct replacement for systems already running BL67 base and slice modules
- Verify exact module compatibility with your existing BL67 gateway before ordering
Works With
- PROFINET IO-Link and standard PROFINET devices
- EtherNet/IP networks running CIP protocols
- Turck TBEN, TGATE, and multiprotocol industrial edge gateways
- Major SCADA and MES platforms supporting standard fieldbus I/O
- Studio 5000 (Allen-Bradley) and TIA Portal (Siemens) via OPC-UA or gateway integration
