High-Speed Data Acquisition Overview
The Yokogawa AMM22T functions as a high-performance input multiplexer for the CENTUM CS and VP series control systems. This module rapidly scans analog inputs and delivers data to the field control unit. It provides exceptional speed while maintaining measurement integrity. Process automation engineers choose this module for time-critical monitoring applications.
Technical Specifications
The AMM22T measures 128 mm in height and 33 mm in width. Its streamlined design fits seamlessly into standard Yokogawa I/O racks. The module weighs approximately 0.25 kilograms. It draws 460 mA from the +5V DC and 55 mA from the ±15V DC supplies.
| Parameter | Specification |
|---|---|
| Model | AMM22T |
| Product Type | Input Multiplexer Module |
| Dimensions | 128 mm x 33 mm x 120 mm (depth) |
| Weight | ~0.25 kg |
| Supply Voltages | +5V DC (460 mA), ±15V DC (55 mA) |
| Input Channels | 16 single-ended or 8 differential |
| Input Ranges | 0-10V, ±10V, 0-20 mA, 4-20 mA, ±100 mV |
| Input Impedance | 250 Ω (current), 1 MΩ (voltage), >10 MΩ (mV) |
| Resolution | 16-bit |
| Sampling Speed | 60 μs per channel |
| Throughput | 266 channels per second |
| CMRR | 110 dB (minimum) |
| Connector Type | 1 x 50-pin ribbon connector |
| On-board Components | 2 x high-speed mux ICs, 1 x fast settling PGA, 1 x reference |
| Energy Storage | 22 μF tantalum capacitor |
| LED Indicators | 1 x Power (green), 1 x Scan Active (yellow) |
| Operating Temp. | 0°C to +50°C |
High-Speed Scanning Architecture
This module achieves a rapid 60-microsecond acquisition time per channel. Two high-speed multiplexer ICs handle the switching with minimal settling delay. A fast-settling programmable gain amplifier stabilizes within microseconds. The module processes 266 channels every second for real-time control. A 22 μF tantalum capacitor ensures stable power during high-speed operation. This speed makes the module ideal for dynamic process monitoring.
Input Versatility and Signal Conditioning
The Yokogawa AMM22T accepts voltage, current, and millivolt signals on any channel. Users configure each input independently through software settings. The onboard shunt resistor array provides termination for current loops. A precision reference voltage enables accurate analog-to-digital conversion. The module achieves 110 dB common-mode rejection for noise immunity. This rejection maintains measurement accuracy in electrically noisy plants.
Connectivity and Installation
Installing the AMM22T requires a single slot in the Yokogawa I/O rack. The 50-pin ribbon connector facilitates quick field wiring termination. A green LED confirms power availability and a yellow LED indicates scanning activity. The module communicates with the field control unit via the I/O bus. It operates reliably between 0°C and 50°C ambient temperatures. Use shielded cables to preserve signal integrity at high speeds.
Reliability and Calibration
The Yokogawa AMM22T maintains accuracy through factory calibration stored onboard. The module performs automatic offset compensation on each scan cycle. Regular verification against calibrated signal sources ensures continued precision. The solid-state design eliminates mechanical wear for extended service intervals.
Details
| Weight | 0.25 kg |
|---|---|
| Dimensions | 128 × 33 × 120 mm |
Reviews
There are no reviews yet.