Overview
The Turck BL67-8DI-P is a modular digital input module designed for distributed I/O applications where control must be placed at the point of use. This 8-channel input slice features PNP switching logic with 24 VDC supply, independent operation with any fieldbus protocol, and IP67-rated protection for use in washdown and harsh environments. The module integrates galvanic isolation via optocouplers between field inputs and internal electronics, ensuring signal integrity in noisy industrial settings.
Key Features
- 8 digital inputs with PNP switching logic
- 24 VDC nominal supply voltage
- IP67 protection class for harsh industrial environments
- LED indicators for status and diagnostics on each channel
- Galvanically isolated inputs via optocoupler technology
- Fieldbus-independent architecture — compatible with multiple communication protocols
- Compact slice design for modular system expansion
- Fast Start-Up (FSU) and QuickConnect (QC) support (firmware v01-03+)
Technical Specifications
- Input Channels: 8 digital
- Switching Logic: PNP
- Supply Voltage: 24 VDC
- Protection Class: IP67
- Operating Temperature: −40 °C to +70 °C
- Weight: 51 g
- Connection Technology: M8, M12, M23 connectors
- Galvanic Isolation: Yes (optocoupler-based)
- Signal Type: Digital input
- Certifications: cULus approved
- Manufacturer Part Number: 6827170
Typical Applications
The BL67-8DI-P is ideal for:
- Machine tool and factory automation systems requiring distributed I/O
- Conveyor and material handling equipment with multiple sensor inputs
- Washdown and hygienic processing environments (food, beverage, pharmaceutical)
- Mobile machinery and vehicle-mounted control systems
- Panel and on-machine mounted control logic with modular expansion
- Systems where fieldbus flexibility and point-of-use I/O placement are priorities
Compatibility & Replacements
Compatible With
- All BL67 base modules and multi-protocol gateways
- BL67 series modular I/O slices (input, output, analog, safety modules)
- Multiple fieldbus protocols (EtherNet/IP, PROFINET, EtherCAT, AS-Interface, CANOPEN, MODBUS)
- Industrial automation controllers with M8, M12, or M23 connector support
- Distributed I/O architectures and machine-integrated control systems
Replaces / Drop-In Replacement For
- Previous Turck BL67 8-channel PNP input modules (legacy versions)
- Other 8-input modular I/O slices with PNP, 24 VDC specifications in comparable form factors
Works With
- Multiple industrial fieldbus standards (EtherNet/IP, PROFINET, EtherCAT, AS-Interface, CANOPEN, MODBUS)
- TIA Portal (Siemens PROFINET integration)
- Studio 5000 (Allen-Bradley EtherNet/IP integration)
- Turck’s TLC touch panel and TBEN ethernet controllers
- Fast Start-Up (FSU) and QuickConnect (QC) enabled systems (firmware v01-03 and higher)
- Any PLC or edge controller communicating via supported protocols
