Yokogawa designed the AAP849 as a high-density pulse input solution for CENTUM VP and CENTUM CS 3000 platforms. This module provides multiple channels for connecting pulse-generating field devices. It converts pulse signals into digital data for precise monitoring and control applications.
Key Technical Specifications
The AAP849 module features a compact form factor suitable for DIN rail or panel mounting. It measures 107 millimeters in height and 130 millimeters in depth. This unit weighs approximately 0.35 kilograms for flexible installation.
| Specification | Detail |
|---|---|
| Model Number | AAP849 |
| 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 | 16 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 | 0.35 kg |
Moving to connectivity, this module provides sixteen isolated channels for extensive field wiring. You connect flow meters, encoders, and counters directly to the terminal blocks. Consequently, the design supports complex applications requiring high channel density.
Design and Application Focus
Engineers select the AAP849 for its high-accuracy pulse counting across multiple channels. The design includes 500 V AC isolation to protect the system from electrical 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 and flow measurement 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 |
Reviews
There are no reviews yet.