The Yokogawa AMM22, also cataloged as the AMM22 Multiplexer Module, operates as a dedicated hardware component for high-density analog signal routing within CENTUM systems. The rack-mounted sub-assembly sequentially switches and concentrates multiple peripheral field instrument loops natively at the hardware tier to optimize processing resource allocation across automated processing environments.
Hardware Specifications
Parameter
Specification
Model
AMM22
Brand
Yokogawa
Origin
Japan
Weight
3.0 kg
Dimensions
Standard multi-slot rack-mountable chassis layout geometry
Operating Temp
0 to 55 deg C standard industrial enclosure tolerances
Power Consumption
Regulated inner logic draw from integrated backplane bus
Product Type
Multiplexer Modules
Process Control & DCS Instrumentation Interface
4-20 mA HART Loop Protocol Routing The multiplexer circuitry dynamically switches and tracks multiple field circuits to process analog variables from 4-20 mA HART loop protocol instruments. The physical relay matrix sequences input paths down into unified data streams, routing continuous process measurements directly to upstream controller registers while preserving signal integrity across all active lines.
Channel-to-Channel Isolation Control Solid-state components and optocouplers maintain complete galvanic separation across all input channels and inner logic buses. This hardware-tier isolation suppresses common-mode voltage spikes and line noise up to rated industrial limits, preventing electrical anomalies on one field line from destabilizing adjacent channels or breaching the master backplane bus.
