Yokogawa AMM22C Multiplexer Module

The Yokogawa AMM22C Multiplexer Module is a high-performance analog multiplexer module designed for use in process automation and instrumentation systems. As part of Yokogawa’s renowned CENTUM or STARDOM control systems, the AMM22C supports high-density analog input channel configurations with exceptional reliability and signal integrity.

The AMM22C allows multiple analog signals to be measured and digitized using a single A/D converter, reducing system complexity and hardware cost. It is ideally suited for applications requiring high channel counts, such as chemical plants, oil & gas facilities, power plants, and water treatment stations.

Its robust construction and smart diagnostics capabilities ensure continuous, accurate data acquisition in even the most demanding environments. It integrates seamlessly with the Yokogawa DCS (Distributed Control System) architecture.

Product Specifications

Product Applications

The Yokogawa AMM22C Multiplexer Module is engineered for industries where reliable analog signal acquisition is critical. Common application areas include:

• Chemical and Petrochemical Plants: Capturing multiple analog measurements such as temperature, pressure, and flow from distributed field instruments.

• Oil & Gas Facilities: Gathering wellhead, separator, and tank data with reduced wiring complexity.

• Power Generation Plants: Monitoring boiler and turbine analog parameters.

• Pharmaceutical Manufacturing: High-accuracy monitoring of production conditions across multiple stages.

• Water/Wastewater Treatment: Centralized acquisition of level, flow, and chemical dosage inputs.

• Pulp and Paper Mills: Scalable data collection for automated process control.

The AMM22C’s ability to multiplex numerous analog signals into a single processing path makes it ideal for centralized or distributed control system installations.

Product Advantages

• High-Density Analog Input: Supports 16 channels in one compact module, optimizing cabinet space.

• Reduced System Cost: Fewer A/D converters required, reducing overall system complexity.

• Flexible Integration: Seamlessly connects with Yokogawa’s CENTUM VP and STARDOM systems.

• High Reliability: Built-in diagnostics detect open circuits, overrange/underrange errors.

• Robust Construction: Wide temperature and humidity tolerance for demanding environments.

• Easy Installation: DIN rail mounting with plug-and-play connector setup.

• Signal Integrity: Isolated channels prevent crosstalk and ensure stable signal acquisition.

• Fast Scan Rate: Ideal for time-critical monitoring and real-time process control.

• Compliance Assured: CE and RoHS compliant for global deployments.

• Long-Term Support: Backed by Yokogawa’s global network and service infrastructure.

Frequently Asked Questions (FAQ)

1. Q: What type of signals does the AMM22C support?

   A: The AMM22C is designed for 4–20 mA analog current input signals.

2. Q: How many channels can one AMM22C module handle?

   A: It can handle up to 16 analog input channels.

3. Q: Does the AMM22C provide input isolation?

   A: Yes, there is isolation between each channel and the system bus for enhanced protection.

4. Q: Can the module detect input signal errors?

   A: Yes, it includes built-in diagnostics to detect open loops and abnormal ranges.

5. Q: What is the typical scan time for one channel?

   A: Approximately 100 milliseconds per channel.

6. Q: Is the AMM22C compatible with non-Yokogawa DCS systems?

   A: While optimized for Yokogawa platforms, it can be used with other systems via standard I/O bases.

7. Q: What’s the operating temperature range for the module?

   A: It operates reliably between -20°C and +55°C.

8. Q: Is it CE and RoHS compliant?

   A: Yes, the module meets international standards for safety and environmental compliance.

9. Q: What mounting system is used?

   A: The AMM22C is DIN rail mountable, simplifying cabinet integration.

10. Q: How much does the AMM22C weigh?

    A: It weighs 0.3 kg.