Description
IMASM01: Product Overview
The ABB IMASM01 is an 8-channel analog input slave module designed exclusively for ABB’s Bailey Infi 90 distributed control system (DCS), a legacy platform widely used in industries like power generation, chemical processing, and oil & gas. As a critical I/O component, it acts as an interface between field devices (e.g., pressure transmitters, temperature sensors) and the Infi 90 controller, enabling precise acquisition of analog signals for process monitoring and control.
Role in Automation Systems:
Positioned as a “signal gateway” in the Infi 90 ecosystem, the IMASM01 performs three primary functions:
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Signal Conditioning: Amplifies and filters weak analog signals from field devices to eliminate noise and ensure accurate transmission.
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Analog-to-Digital Conversion (ADC): Converts continuous analog signals (e.g., 4–20 mA) into 16-bit digital data for the Infi 90 controller.
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Isolation: Provides galvanic isolation between channels and the system bus to protect the controller from electrical noise and voltage spikes.
Core Functionality:
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8-Channel Capacity: Supports up to 8 analog inputs, reducing the number of modules required and simplifying cabinet layout.
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Flexible Signal Compatibility: Accepts multiple signal types (voltage/current) and ranges, adapting to diverse field devices without additional hardware.
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High Precision: 16-bit resolution and ±0.05% accuracy ensure reliable measurement of critical process variables (e.g., turbine temperature, pipeline pressure).
Platform Benefits (Bailey Infi 90 Series):
The IMASM01 leverages ABB’s legacy of reliability in industrial automation. Key benefits include:
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Backward Compatibility: Compatible with earlier Bailey Control Systems (e.g., Network 90), enabling phased modernization of existing facilities.
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Scalability: Supports expansion with additional I/O modules to accommodate growing operational needs.
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Diagnostic Capabilities: Built-in status LEDs and fault logging simplify troubleshooting, reducing mean time to repair (MTTR).
ABB IMASM01
Technical Specifications
Model Number: IMASM01
Manufacturer: ABB (formerly Bailey Controls)
Product Type: Analog Input Slave Module
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Channels: 8 (single-ended/differential)
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Signal Types: 0–10 V, ±10 V, 0–20 mA, 4–20 mA
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Resolution: 16-bit
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Accuracy: ±0.05% (full scale)
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Input Impedance: 250 Ω (current), 10 MΩ (voltage)
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Isolation: 1500 V AC (channel-to-system)
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Communication: InfiNet (Bailey Infi 90 proprietary protocol)
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Power Supply: 24 V DC (±10%)
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Operating Temperature: -20°C to +70°C (-4°F to 158°F)
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Storage Temperature: -40°C to +85°C (-40°F to 185°F)
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Humidity: 5% to 95% non-condensing
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Dimensions (W×H×D): 324 mm × 234 mm × 9 mm (12.76 in × 9.21 in × 0.35 in)
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Weight: 0.4 kg (0.88 lbs)
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Certifications: CE, UL, RoHS (exempt per EU Directive 2011/65/EU)
Core Features & Customer Value
1. High-Precision Signal Acquisition:
The IMASM01’s 16-bit resolution and ±0.05% accuracy ensure that critical process variables (e.g., boiler pressure, reactor temperature) are measured with precision. This accuracy is essential for maintaining product quality in chemical processing or complying with environmental regulations in power generation.
2. Flexible Signal Compatibility:
With support for multiple signal types (voltage/current) and ranges, the IMASM01 adapts to diverse field devices without requiring additional signal conditioning hardware. This flexibility reduces installation costs and simplifies inventory management for engineers.
3. Robust Isolation:
The module’s 1500 V AC galvanic isolation protects the Infi 90 controller from electrical noise and voltage spikes generated by field devices (e.g., motors, solenoids). This ensures reliable data transmission and reduces the risk of controller damage.
4. Easy Integration:
Designed specifically for ABB’s Bailey Infi 90 System, the IMASM01 installs in standard I/O chassis and communicates with the controller via the InfiNet protocol. This plug-and-play compatibility reduces setup time and effort for engineers.
ABB IMASM01
Typical Applications
The ABB IMASM01 is widely used in industries relying on ABB’s Bailey Infi 90 DCS:
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Power Generation:
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Monitors turbine temperature, pressure, and flow using 4–20 mA sensors.
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Example: In a coal-fired power plant, the IMASM01 acquires temperature signals from a turbine and transmits data to the Infi 90 controller, which adjusts fuel flow to maintain optimal efficiency.
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Oil & Gas:
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Interfaces with pipeline pressure transmitters and flow meters to monitor crude oil/gas transportation.
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Example: In an offshore oil rig, the IMASM01 collects pressure data from a subsea sensor and sends it to the controller, enabling operators to adjust valve positions and prevent overpressure.
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Chemical Processing:
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Measures pH, temperature, and concentration in chemical reactors using analog sensors.
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Example: In a petrochemical refinery, the IMASM01 acquires pH signals from a reactor and transmits data to the controller, which adjusts the flow of neutralizing agents to maintain optimal reaction conditions.
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