Overview
The Turck BL67-4DI4DO-PD is a compact BL67 series electronic module designed for distributed I/O applications in industrial control systems. This unit provides 4 digital inputs and 4 digital PNP outputs with integrated channel diagnostics, making it suitable for fieldbus-independent applications across manufacturing, process automation, and motion control.
Key Features
- 4 Digital Inputs, 24 VDC with channel diagnostics and adjustable filter times
- 4 Digital Outputs, 24 VDC, 0.5 A max with PNP switching capability
- Galvanic Isolation — electronics separated from field level via optocouplers
- IP67 Protection Class — sealed design for harsh industrial environments
- LED Status Indicators for input, output, and diagnostic feedback
- Invertible Inputs — configurable input polarity for flexible integration
Technical Specifications
- Model: BL67-4DI4DO-PD (Ident. no. 6827203)
- Supply Voltage: 24 VDC
- Digital Inputs: 4 × 24 VDC
- Digital Outputs: 4 × 24 VDC, 0.5 A per channel (max)
- Output Type: PNP (source)
- Protection Class: IP67
- Mounting: Plug-in mount
- Dimensions: 32 × 91 × 59 mm (W × H × D)
- Isolation: Optocoupler (galvanically isolated)
- RoHS Compliant: Yes
Typical Applications
- Distributed I/O nodes in decentralized control architectures
- Sensor input acquisition and actuator signal control in manufacturing systems
- Industrial automation and motion control platforms
- Harsh environment applications requiring IP67 sealing
- Legacy and modern PLC systems requiring plug-in signal conditioning
Compatibility & Replacements
Compatible With
- Turck BL67 series fieldbus gateways and controllers
- Industrial PLC and distributed control systems
- Systems independent of fieldbus type (AS-Interface, PROFIBUS, EtherNet/IP, etc.)
- 24 VDC industrial control environments
Replaces / Drop-In Replacement For
- Other Turck BL67 4DI/4DO configurations with same pinout and mounting
- Verify exact replacement compatibility with your system integrator before ordering
Works With
- Turck remote I/O modules and gateways
- 24 VDC power supplies
- Industrial control software supporting distributed I/O (TIA Portal, Studio 5000, etc.)
- Standard industrial connector and wiring practices
