100% Genuine. 100,000+ Parts in Stock. Ready to Ship.

  • en

YOKOGAWA AAM11B Analog Input Module

The YOKOGAWA AAM11B, also cataloged as the AAM11B Analog Input Module, operates as a dedicated hardware component for acquiring high-density analog voltage signals from field-mounted transmitters and sensors within CENTUM VP or CS3000 control systems.

Hardware Specifications

Parameter Specification
Model AAM11B
Brand YOKOGAWA
Origin Japan
Weight 0.3 kg
Dimensions Standard I/O module form factor
Operating Temp -20 deg C to 70 deg C
Power Consumption 310 mA (5 VDC), 500 mA (24 VDC)
Number of Channels 16 analog inputs
Input Resistance (ON) 1 M Ohm
Input Resistance (OFF) 500 k Ohm
Accuracy 0.1 % of span
Data Update Period 10 ms

DCS Process Control & Connectivity

The AAM11B incorporates sophisticated signal processing tailored for complex loop control environments. It utilizes channel-to-channel signal processing logic that ensures minimal latency during continuous analog-to-digital conversion. To maintain signal integrity in multi-loop control, the module supports standard 4-20 mA HART loop protocol integration via external signal conversion or direct voltage monitoring. Furthermore, the design incorporates cold junction compensation (CJC) logic paths for temperature-related voltage inputs, ensuring that measurement precision remains consistent within the specified 0.1 % accuracy band despite ambient thermal fluctuations in the I/O cabinet.

Frequently Asked Questions (FAQ)

Q: Does the AAM11B support hot-swapping during active operation?

A: Yes, the module supports hot-swapping when installed in a redundant pair or a system chassis that allows for on-line maintenance without disrupting the backplane power distribution.

Q: How should the module be configured for dual-redundant operation?

A: Dual-redundancy requires the installation of two identical AAM11B modules in adjacent slots of the terminal board, managed by the bus interface module to ensure seamless switchover during a primary module fault.

Field Installation Guidelines

  • Grounding and Shielding: Given that the 16 channels are non-isolated, all signal common wires must be referenced to a clean instrument ground. Use shielded twisted-pair cables to prevent electromagnetic interference (EMI) ingress, ensuring that shields are terminated at a single point to prevent ground loops.
  • Terminal Connections: The module supports pressure clamp terminals and standard KS cable assemblies. Ensure that cable ferrules are correctly crimped to prevent high-resistance contacts that may induce reading drift.
  • Thermal Management: Maintain adequate clearance (minimum 50 mm) above and below the module to allow for natural convection, particularly when operating near the 70 deg C upper limit of the ISA G3 compliance range.
  • Voltage Limits: Do not apply signals exceeding 30 VDC to the input terminals, as this will trigger internal surge protection diodes and potentially lead to permanent circuit board failure.

What's clients say about us

Translation missing: en.general.search.loading