The ABB IMAMM03, also cataloged as the IMAMM03 Analog Master Module, operates as a dedicated hardware component for multi-channel analog signal processing and A/D conversion within Infi 90 platforms.

Slave Subsystem Capacity and Memory Layout

The IMAMM03 acts as the central control module for analog processing subsystems. It manages up to 64 individual analog inputs gathered from up to 4 IMASM01 modules or up to 8 IMASM02/03/04 slave modules. Internal memory architecture consists of 24 kbytes of RAM, 36 kbytes of ROM for onboard firmware, and 6 kbytes of BATRAM for retaining runtime configuration and calibration values during power cycles.

Technical Performance Parameters

Subsystem Integration and Backplane Velocity

The module relies on deterministic backplane bus communication velocity to cycle through all connected slave module channels. High-resolution 16-bit A/D conversion delivers precise numerical values to the host rack controller, while firmware flash compatibility ensures synchronized scan execution and efficient I/O density scaling across the local Infi 90 node.

System Supply Scope

• 1 x ABB IMAMM03 Analog Master Module

Module Insertion and Wiring Guidelines

• Disconnect backplane bus power before inserting or pulling the module card from the rack frame.
• Align circuit board edges with card guide tracks to ensure proper engagement of the rear edge connector.
• Ground all shielded analog loop cabling at a single chassis tie-point to maximize normal mode noise rejection.
• Ensure proper DIP switch configuration on slave modules prior to backplane initialization.

Technical FAQ

• What is the maximum number of analog inputs managed by the IMAMM03?

  The module processes up to 64 individual analog input channels via connected slave modules.

• Which slave module models are compatible with the IMAMM03?

  It supports up to 4 IMASM01 modules or up to 8 IMASM02, IMASM03, or IMASM04 slave modules.

• What resolution does the onboard A/D converter provide?

  Analog-to-digital signal conversion operates at a 16-bit resolution across the input voltage range.

• What input voltage span is supported by the master module?

  The module accepts analog input voltage signals spanning from -10 to +10 VDC.

• What level of noise rejection is maintained at 60 Hz?

  The internal input filtering provides a normal mode rejection ratio of -60 dB at 60 Hz.

• How much retention memory is allocated for battery-backed storage?

  The onboard memory architecture includes 6 kbytes of BATRAM for non-volatile parameter storage.

• What is the common mode voltage threshold for input signals?

  The maximum allowable common mode voltage range across signal pairs is +/-5 VDC.

• Can the IMAMM03 process standard 4 to 20 mA process loops?

  Yes, 4 to 20 mA current loops are converted to voltage spans via standard precision shunt resistors.