16-Channel MV Analog Input FIO Card Yokogawa AMM22C

Availability: 99 left in stock

Yokogawa AMM22C CENTUM VP Series Analog Input FIO Card The Yokogawa AMM22C, also cataloged as the AMM22C Analog Input FIO...

SKU: AMM22C

Manufacturer: Yokogawa
Product No.: AMM22C
Product Type: Analog Input Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 350g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa AMM22C CENTUM VP Series Analog Input FIO Card

The Yokogawa AMM22C, also cataloged as the AMM22C Analog Input FIO Card, operates as a dedicated hardware component for low-level millivolt and 4-20 mA DC signal acquisition within CENTUM VP and CS 3000 systems. This hardware component interfaces 16 field-side loops with the core Vnet/IP control infrastructure via internal multiplexing circuits, processing low-level signals without requiring external isolation barriers or auxiliary conversion modules.

Hardware Specifications

Parameter	Specification
Model	AMM22C
Brand	Yokogawa Electric Corporation
Origin	Japan
Weight	0.35 kg
Dimensions	32.8 mm x 107.5 mm x 130 mm
Operating Temp	0 to 60 deg C
Power Consumption	System backplane dependent
Series Compatibility	CENTUM VP / CS 3000 FIO Subsystem
Number of Channels	16 channels, galvanically isolated
Input Signal Range	Millivolt (MV) / 4-20 mA DC
Input Resistance	250 ohms (integrated for current signals)
Measurement Accuracy	plus/minus 0.1 percent of full scale
Withstanding Voltage	500 VAC between terminals and ground
Insulation Resistance	10 M ohms or more (at 500 VDC)
Diagnostic Capabilities	Integrated open-circuit and short-circuit detection

Process Control & DCS Instrumentation Features

The module integrates a dedicated 4-20 mA HART loop protocol layer enabling seamless pass-through communication between field instruments and the CENTUM VP engineering workstation. Internal measurement nodes feature individual channel-to-channel isolation parameters to mitigate ground loop currents and prevent common-mode voltage differentials from corrupting adjacent channels. For thermal safety and accuracy across varying installation conditions, electronic temperature sensors provide automated cold junction compensation (CJC) calculation routines when processing external thermocouple signals via matching terminal boards, ensuring deterministic A/D converter scaling.

Frequently Asked Questions

Q: What is the primary operational distinction of the "C" hardware revision on this module?

A: The "C" hardware revision provides enhanced thermal stability metrics and refined internal diagnostic registers compared to legacy standard modules, ensuring tighter drift characteristics over the 0 to 60 deg C operating range.

Q: How does the integrated 250 ohm input resistance function during millivolt signal acquisition?

A: The 250 ohm shunt resistance is utilized natively for standard 4-20 mA loop current conversion. For pure low-level millivolt voltage configurations, the module circumvents or balances the internal resistance matrix to maintain a high-impedance state suitable for MV sensors.

Field Installation Guidelines

Mount the module vertically on the standard FIO node backplane unit, ensuring the top and bottom latch mechanisms click securely into place to maintain reliable backplane bus connection.
Maintain standard industrial field wiring separation by routing low-voltage millivolt and 4-20 mA signal wires away from high-voltage AC distribution lines or heavy inductive load conduits to avoid electromotive interference.
Terminate signal cables using dedicated multi-point terminal blocks. Ensure all cable shields are tied to a single, clean instrumentation ground point at the cabinet entry barrier rather than grounding both ends.
Verify clear ventilation paths above and below the FIO node enclosure to ensure natural convective airflow maintains operating temperatures below 60 deg C.

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