Product Description

The AMM22C is a high-density analog input multiplexer designed for Yokogawa CENTUM CS and CENTUM VP Distributed Control System (DCS) architectures. It is specifically engineered to aggregate low-level millivolt (mV) DC signals from multiple field devices, providing an efficient interface between localized sensor measurements and the central control system.

Optimized for high-integrity data acquisition, the AMM22C delivers reliable processing of sensitive analog signals that demand high resolution and low noise susceptibility. Its 16-channel multiplexer architecture maximizes input density while minimizing I/O nest footprint. The robust chassis-mounted design ensures mechanical stability in industrial environments, reducing wiring complexity and supporting scalable process automation deployments.

Technical Specifications

Application Scenarios

• Sensor Consolidation
  Aggregation of multiple low-voltage DC outputs from pressure sensors, analytical instruments, or specialty transducers.

• Process Monitoring
  High-density millivolt signal acquisition in chemical, pharmaceutical, and fine-chemical production facilities.

• Legacy System Expansion
  Cost-effective expansion of existing CENTUM CS / VP systems without major architectural redesign.

Product FAQ

Q: Does the AMM22C support high-voltage DC inputs?
A: No. The AMM22C is optimized for millivolt-level DC signals. For higher voltage ranges, a standard AI module or an alternative AMM series variant should be used.

Q: How does the AMM22C communicate with the Field Control Station (FCS)?
A: The module installs directly into the I/O nest and communicates through the internal system bus, allowing the FCS to sequentially scan all 16 input channels efficiently.