Technical Overview
The Yokogawa ADV157 is a high-speed 32-channel digital input module for the CENTUM VP and CS 3000 DCS platforms. It processes 24 V DC discrete signals from pushbuttons, limit switches, and proximity sensors with exceptional speed . The pressure clamp terminal block enables direct field wiring without extra termination hardware. Optical isolation separates field-side inputs from the internal system bus. This module supports both status monitoring and pushbutton edge-counting logic .
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Model | ADV157 (with suffix codes: -S00, -S51, -SE0, -SE1) |
| Type | High-Speed Digital Input Module |
| Channels | 32 isolated discrete inputs |
| Rated Input Voltage | 24 V DC (sink/source compatible) |
| ON-State Voltage | 18.0 – 26.4 V DC |
| OFF-State Voltage | ≤ 5.0 V DC |
| Input Current per Channel | 4.1 mA ± 20% @ 24 V DC |
| Response Time | ≤ 8 ms for status input |
| Minimum ON Detection | 20 ms for pushbutton input |
| Max ON/OFF Cycle Rate | 25 Hz for counting applications |
| Withstanding Voltage | 2 kV AC (input-signal to system), 500 V AC (between commons) |
| Power Consumption | 350 mA max @ 5 V DC |
| External Connection | Pressure clamp terminal |
| Weight | Approx. 0.4 kg |
| Dimensions | 114 mm × 32.6 mm × 60.5 mm |
Engineering Advantages
The ADV157 consumes only 350 mA from the 5 V system supply, enabling higher I/O density without exceeding power budgets . A fast 8 ms response time delivers near-instantaneous detection for critical interlocks and sequence-of-events recording. The module handles 25 Hz pulse trains for flow meters or encoder counting applications . Its 2 kV AC isolation withstands voltage spikes from inductive loads like relays and solenoids . The integrated pressure clamp terminal supports stranded or solid wires directly, simplifying field termination and reducing cabinet clutter . The hot-swap design allows module replacement while the system remains online .
Details
| Weight | 0.7 kg |
|---|---|
| Dimensions | 2.5 × 20.3 × 15.2 mm |
Reviews
There are no reviews yet.