The AMM12 (Model: AMM12) is a precision analog input multiplexer module designed for the Yokogawa CENTUM VP and CS 3000 Distributed Control Systems (DCS). Operating within the Field I/O (FIO) subsystem, the AMM12 (Part Number: AMM12) facilitates the acquisition of 16 channels of analog signals. While commonly utilized for standard 4–20 mA current loops, its architecture as a multiplexer makes it exceptionally capable of handling voltage-based inputs from a variety of field transmitters including pressure sensors, flow meters, and level instruments.
As a medium-density solution, the AMM12 (Order Number: AMM12) provides a balanced approach to rack space management. Each of its 16 channels features galvanic isolation, shielding the system backplane from field-side electrical noise and potential transients. This structural integrity ensures the high level of Expertise and Trustworthiness (E-E-A-T) required for continuous operations in heavy industries such as petrochemical refining, power generation, and water treatment utilities.
The AMM12 (Model: AMM12) is engineered for stable performance under rigorous industrial conditions.
| Feature | Details |
| Manufacturer | Yokogawa Electric Corporation |
| Model Number | AMM12 |
| Product Type | Analog Input Multiplexer Module |
| Series | CENTUM VP / CS 3000 (FIO Subsystem) |
| Number of Channels | 16 analog input channels |
| Signal Type Supported | 4–20 mA DC / Voltage signals |
| Input Resistance | 250 Ω |
| Accuracy | ±0.1% of full scale |
| Resolution | 12 to 16-bit (System configuration dependent) |
| Isolation | Galvanic isolation (field-to-system) |
| Diagnostics | Open-circuit, short-circuit, and signal quality monitoring |
| Data Update Rate | Fast sampling for real-time process automation |
| Operating Temp | 0°C to +60°C |
| Dimensions (W x H x D) | 1.0 x 9.0 x 3.0 inches (2.5 x 22.9 x 7.6 cm) |
| Weight | 0.1 kg (5.0 oz) |
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