Yokogawa ASD143-P00 Digital Input Module

Product Description

The Yokogawa ASD143‑P00 is a high-performance 16-channel digital input module engineered for distributed control and safety systems, including CENTUM and ProSafe platforms. Designed for NAMUR-compliant signals, this module integrates an internal barrier to provide intrinsic safety, making it ideal for hazardous zones and electrically noisy environments.

Key Features

• 16 fully isolated digital input channels for reliable signal acquisition

• NAMUR (IEC 60947‑5‑6) compatible input standard

• Built-in intrinsic safety barrier for hazardous-area applications

• High voltage tolerance: withstands up to 1500 V AC

• Fast input response time: 15 ms

• Supports pulse counting and pushbutton signal detection

• Pushbutton ON detection ≥ 20 ms

• Maximum ON/OFF switching frequency: 25 Hz

• Compact and robust design for stable operation in industrial environments

Technical Specifications

Input & Signal Characteristics

Electrical Characteristics

Applications

The ASD143‑P00 module is suitable for:

• Process monitoring in chemical, petrochemical, and power plants

• Safety and interlock systems requiring intrinsic safety compliance

• Distributed control systems needing stable, isolated digital inputs

FAQ

Q: Can the module handle noisy industrial environments?
A: Yes, the built-in barrier and isolation protect the module against electrical noise and hazardous-area conditions.

Q: Is this module compatible with standard NAMUR sensors?
A: Yes, it fully complies with IEC 60947‑5‑6 (NAMUR) signal specifications.

Q: What is the maximum pulse input frequency?
A: It supports up to 25 Hz ON/OFF cycles, with a minimum 20 ms pushbutton detection.

Q: How does it compare to ASD144 modules?
A: While both support isolated digital inputs, the ASD143‑P00 integrates a built-in intrinsic safety barrier specifically for hazardous zones, whereas ASD144 may require external barriers.