Description
🔧 Product Overview
The ABB IMASI13 is an isolated analog input module designed for Bailey INFI 90, Symphony, and Harmony rack automation systems.
This module provides 16 independently configurable analog input channels for connecting field signals to a compatible Harmony controller. It is used in process automation applications where accurate measurement of temperature, pressure, flow, level, and other analog process variables is required.
The IMASI13 supports multiple signal types, including current, voltage, millivolt, thermocouple, and RTD inputs. Each channel can be configured independently, giving the module flexibility for mixed-signal applications. The module uses 24-bit analog-to-digital conversion for high-resolution signal processing.
⚙️ Main Features
🔹 16 analog input channels
🔹 Independently configurable input channels
🔹 Isolated analog signal processing
🔹 24-bit analog-to-digital conversion
🔹 Current input support
🔹 Voltage input support
🔹 Millivolt input support
🔹 Thermocouple input support
🔹 RTD input support
🔹 Designed for Bailey INFI 90 and Symphony systems
🔹 Suitable as a replacement for legacy IMASI03 applications with configuration considerations
The IMASI13 is designed as a Harmony rack analog input module and can process field signals from transmitters, thermocouples, and RTDs for use by the system controller.
📋 Product Datasheet
Brand: ABB
Model: IMASI13
Series: Bailey INFI 90 / Symphony / Harmony Rack
Product Name: Isolated Analog Input Module
Product Type: Industrial Analog Input Module
Input Channels: 16
Channel Configuration: Individually Configurable
A/D Resolution: 24 Bits
Current Input: 4 to 20 mA
Voltage Input: -10 to +10 VDC
Millivolt Input: -100 to +100 mVDC
Thermocouple Support: Yes
Supported Thermocouple Types: E, J, K, L, N, R, S, T, U and other supported variants
RTD Support: Yes
Supported RTD Types: Copper, Platinum and Nickel configurations
System Compatibility: Bailey INFI 90 / Symphony Enterprise Management and Control System
Module Installation: Harmony Rack
Signal Function: Field Analog Signal Acquisition
Analog Conversion: 24-bit per channel
Module Design: Single PCB Industrial I/O Module
Condition: New Surplus / Used Surplus, depending on the actual unit
Country of Origin: Verify from the actual product nameplate
Dimensions: Verify from the actual unit or manufacturer documentation
Weight: Verify from the actual product label or shipping inspection
Power Consumption: System-dependent; verify against the installed configuration and module documentation
The published IMASI13 documentation identifies 16 analog input channels, independent channel configuration, 24-bit conversion, and support for current, voltage, millivolt, thermocouple, and RTD signals.
🌡️ Analog Signal Processing
The IMASI13 can be used to collect different types of process signals within the same control system.
Typical field devices include:
🔹 Pressure transmitters
🔹 Flow transmitters
🔹 Temperature transmitters
🔹 Level transmitters
🔹 Thermocouples
🔹 Resistance temperature detectors
🔹 Voltage-output sensors
🔹 Millivolt measurement devices
This flexibility allows a single module to support different measurement requirements without requiring every channel to use the same input type.
🔌 16 Independently Configurable Channels
One of the main features of the IMASI13 is its 16-channel configuration.
Each input channel can be individually programmed for the required signal type. This is useful in process plants where a single I/O module may receive signals from several different types of field instruments.
For example, one module configuration may include:
- 4 to 20 mA pressure transmitters
- Thermocouple temperature measurements
- RTD temperature measurements
- Millivolt signals
- DC voltage signals
The controller configuration determines how the input data is processed and used by the automation application.
🧪 Supported Input Types
⚡ Current Input
The IMASI13 supports 4 to 20 mA current signals commonly used by industrial transmitters.
Typical applications include pressure, flow, temperature, and level measurement.
🔋 Voltage Input
The module supports DC voltage measurement, including a bipolar -10 to +10 VDC range.
📊 Millivolt Input
Millivolt measurement capability allows the module to process low-level signals used by certain sensors and measurement devices.
🌡️ Thermocouple Input
The module supports multiple thermocouple types for direct temperature measurement.
🔧 RTD Input
RTD compatibility allows resistance-based temperature sensors to be integrated into the Bailey automation system.
Published documentation lists copper, platinum, and nickel RTD configurations among the supported input types.
🏭 Typical Applications
The ABB IMASI13 can be found in industrial automation and process-control environments such as:
🔹 Oil and gas facilities
🔹 Petrochemical plants
🔹 Power generation systems
🔹 Chemical processing plants
🔹 Water and wastewater systems
🔹 Pulp and paper facilities
🔹 Manufacturing plants
🔹 Process-control systems
🔹 Bailey INFI 90 installations
🔹 ABB Symphony systems
🔹 Legacy Harmony rack control systems
🛠️ Installation Notes
Before replacing or installing an IMASI13 module, verify the existing Bailey or Symphony system configuration.
Recommended checks include:
- Confirm the complete model number: IMASI13.
- Verify the Harmony rack or compatible mounting configuration.
- Check the connected termination unit.
- Record the existing channel configuration.
- Identify the signal type used by each channel.
- Check thermocouple and RTD wiring requirements.
- Verify field wiring before reconnecting the module.
- Confirm the controller configuration.
- Power up the system according to the approved site procedure.
- Test each analog channel before returning the system to operation.
Because different channels may use different signal configurations, field wiring and controller parameters should be recorded before replacing an existing module.
🔄 Replacement Compatibility
The IMASI13 is identified as a replacement option for earlier IMASI03 applications, although configuration changes may be required because of differences in analog resolution and system requirements.
When replacing an older module, check:
- Controller configuration
- Function code settings
- Analog resolution
- Channel definitions
- Power consumption
- Termination hardware
- Field signal type
The IMASI13 documentation notes that it can replace the IMASI03 with minor modifications, including configuration changes related to resolution and verification of system power requirements.
❓ Common Questions & Answers
Q: What is the ABB IMASI13?
A: It is a Bailey INFI 90 and Harmony rack isolated analog input module designed to process field analog signals.
Q: How many analog inputs does the IMASI13 have?
A: The module provides 16 analog input channels.
Q: Can each channel use a different signal type?
A: Yes. Each channel can be independently configured for supported input types.
Q: Does the IMASI13 support 4 to 20 mA signals?
A: Yes. It supports 4 to 20 mA current input signals.
Q: Does it support voltage inputs?
A: Yes. The module supports DC voltage inputs, including -10 to +10 VDC.
Q: Can it measure millivolt signals?
A: Yes. The IMASI13 supports millivolt inputs, including -100 to +100 mVDC.
Q: Does the module support thermocouples?
A: Yes. Multiple thermocouple types are supported.
Q: Does the IMASI13 support RTDs?
A: Yes. It supports several copper, platinum, and nickel RTD configurations.
Q: What is the analog conversion resolution?
A: The module uses 24-bit analog-to-digital conversion.
Q: Can the IMASI13 replace an IMASI03?
A: It can be used as a replacement in applicable systems, but configuration and power-consumption requirements should be checked before installation.
Q: Is the IMASI13 a PLC processor?
A: No. It is an analog input module. The controller performs the control functions, while the IMASI13 provides analog signal acquisition.
📦 Recommended ABB Bailey INFI 90 Models
- ABB IMASI13 — Isolated Analog Input Module
- ABB IMASI03 — Analog Input Module
- ABB IMASM02 — Analog Input Module
- ABB IMASM03 — Analog Input Module
- ABB IMASM04 — Analog Input Module
- ABB IMCIS02 — Control I/O Module
- ABB IMCIS12 — Control I/O Module
- ABB IMMFC04 — Multi-Function Controller
- ABB IMMFC05 — Multi-Function Controller
- ABB INICT13A — INFI-NET Computer Interface Module
Always verify the complete part number, hardware revision, system configuration, termination unit, and field wiring before selecting a replacement module.
🔍 Inspection Before Shipment
Recommended inspection for an ABB IMASI13 includes:
🔹 Model and nameplate verification
🔹 PCB and housing inspection
🔹 Connector inspection
🔹 Terminal connection verification
🔹 Channel configuration inspection
🔹 Power-up recognition test
🔹 Analog signal input test
🔹 Current-input verification
🔹 Voltage-input verification
🔹 Communication and controller recognition test
🔹 Final visual inspection before packaging
For Bailey INFI 90 maintenance projects, matching the correct module model is important, but the existing termination hardware and channel configuration should also be checked before installation.
