Yokogawa engineered the AAP149-S00 as a precision pulse input module for CENTUM VP and CENTUM CS 3000 systems. This unit connects directly to pulse-generating devices such as flow meters and encoders. It converts pulse signals into digital data for real-time monitoring and precise control.
Key Technical Specifications
The AAP149-S00 module features a compact housing suitable for DIN rail or panel mounting. It measures 107 millimeters in height and 130 millimeters in depth. This unit weighs approximately 0.3 kilograms for flexible installation options.
| Specification | Detail |
|---|---|
| Model Number | AAP149-S00 |
| Module Type | Pulse Input Module |
| Input Type | Contact closures, voltage pulses, or current pulses |
| Input Frequency | 0 to 10 kHz |
| Minimum Pulse Width | 40 microseconds |
| Signal Level | High: 3-24 V DC; Low: -1 to 8 V DC; Swing >3V |
| Channel Count | 8 isolated input channels |
| Isolation | 500 V AC between channels and system |
| Data Update Period | 2 milliseconds |
| Transmitter Power | 12 V DC ±10% (40 mA max) or 24 V DC ±10% (30 mA max) |
| Communication | Supports HART protocol |
| Dimensions | 107 x 33 x 130 mm (H x W x D) |
| Weight | 0.3 kg |
Moving to connectivity, this module provides eight isolated channels for flexible field wiring. You connect pulse-generating devices directly to the terminal blocks for reliable signal acquisition. Consequently, the design supports diverse applications from flow measurement to speed detection.
Design and Application Focus
Engineers select the AAP149-S00 for its high-accuracy pulse counting in demanding environments. The design includes 500 V AC isolation to protect the system from field noise. Furthermore, the module handles input frequencies up to 10 kHz with a 40-microsecond minimum pulse width. This feature ensures precise counting for high-speed encoder applications.
Unlike standard input modules, this unit integrates seamlessly with CENTUM VP architecture. You can configure each channel for contact closure, voltage pulse, or current pulse inputs. Additionally, the selectable transmitter power supply simplifies wiring for field devices without external power sources.
Details
| Weight | 0.7 kg |
|---|---|
| Dimensions | 2.5 × 20.3 × 15.2 mm |

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