Product Overview

The AMM42-S2 (Model: AMM42) is a high-density Analog-to-Digital (A/D) conversion module purpose-built for the Yokogawa CENTUM VP and CS 3000 Distributed Control Systems (DCS). As a core component of the Field I/O (FIO) subsystem, the AMM42-S2 (Part Number: AMM42-S2) provides 32 isolated channels for the deterministic acquisition of standard 4 to 20 mA process signals. This module is engineered to provide maximum I/O density within the control rack, effectively reducing the physical footprint required for large-scale instrumentation marshalling.

Equipped with integrated dual DC-DC converters and a high-pin-density interface (utilizing both 96-pin and 20-pin connectors), the AMM42-S2 (Order Number: AMM42-S2) ensures superior power stability and signal decoupling. The "S2" hardware revision features optimized internal circuitry that provides robust galvanic isolation, shielding the central processor from field-side electrical noise and transients. This makes it an essential module for high-stakes environments such as oil refineries, power plants, and chemical manufacturing facilities where 24/7 uptime and precision measurement are non-negotiable.

Detailed Technical Specifications

The AMM42-S2 provides the following electrical and physical performance parameters for industrial automation:

• Manufacturer: Yokogawa Electric Corporation

• Model Number: AMM42-S2

• Series: CENTUM VP / CS 3000 (FIO Subsystem)

• Product Type: 32-Channel High-Density Analog Input (A/D) Module

• Input Signal Range: 4 to 20 mA DC

• Number of Channels: 32 Isolated Channels

• Input Resistance: 250 Ω (Internal precision shunt)

• Conversion Resolution: 12 to 16-bit (Scan period dependent)

• Measurement Accuracy: ±0.1% of full scale

• Interface Architecture: 96-pin connector for main signal / 20-pin connector for converter interface

• Power Supply: Dual integrated DC-DC converters for enhanced reliability

• Withstanding Voltage: 500 V AC between field terminals and system logic

• Data Refresh Rate: Fast sampling compatible with high-speed control loops

• Temperature Drift: Optimized for low-drift performance over full operating range

• Operating Temperature: 0°C to +60°C (32°F to 140°F)

• Dimensions (W x H x D): 32.8 mm x 107.5 mm x 130 mm

• Net Weight: 0.3 kg ( 0.65 lbs)