Description
Unboxing & Hardware Overview
- Manufacturer & Architecture: ABB / Bailey (INFI 90 / Symphony Plus Distributed Control System Architecture)
- Part Number / Model: IMASO11 (Catalog Designation: Analog Output Slave Module)
- Product Type: Multi-Channel Analog Output Module / Process Control Interface Card
- Physical Dimensions: Standard INFI 90 module card format (Approx. 358 mm Height x 271 mm Width x 74 mm Depth / 14.1 x 10.7 x 2.9 inches)
- Estimated Shipping Weight: ~1.4 to 3.0 lbs (0.6 to 1.4 kg) enclosed in heavy industrial anti-static ESD packaging and protective cushioning
- Primary Condition Status: Factory New / New Surplus / Refurbished options available (verify specific hardware revision level and firmware compatibility with your node layout prior to insertion)
Product Introduction
The ABB Bailey IMASO11 is a high-reliability Analog Output Slave Module designed specifically for the INFI 90 and Network 90 distributed control system (DCS) platforms. Its core purpose is to receive digital command values from a multi-function controller (MFC) or master module over the communication highway and translate them into precise, independent analog output signals to regulate field-mounted process actuators, control valves, positioners, and indicators.
Built for heavy industrial plants, power generation stations, and continuous process facilities, the IMASO11 provides precise conversion loops, galvanic isolation, and fault-tolerant tracking features to ensure uninterrupted plant operation.
Core Technical Specifications
| Parameter | Value |
| Product Model | IMASO11 (Bailey INFI 90 Series) |
| Module Type | Analog Output Slave (AOS) Module |
| Output Channels | Multiple independent analog control channels (typically configured for up to 14 channels depending on termination configuration) |
| Output Signal Ranges | User-configurable for standard industrial control ranges (e.g., 4 to 20 mA DC current or 1 to 5 VDC voltage) |
| Resolution | High-precision 16-bit digital-to-analog conversion |
| System Communication | Interfaces directly via Module Bus (Cluster/Node architecture) to Master Control Units |
| Operating Temperature | 0°C to +70°C (32°F to 158°F) standard industrial cabinet range |
| Storage Temperature | -40°C to +85°C (-40°F to 185°F) |
| Relative Humidity | Up to 95% non-condensing |
Compliance & Standards Alignment
- Manufactured in accordance with rigorous ABB Bailey quality standards, ISO guidelines, and industrial electrical safety protocols.
- Designed with high electromagnetic compatibility (EMC) immunity to withstand heavy electrical noise, switching transients, and heavy ground differentials common in power plants and large-scale industrial control rooms.
Technical Note: The IMASO11 module works in tandem with specific Termination Units (TU) or Module Mounting Units (MMU). Ensure that field wiring terminations mapped on the termination unit match the configuration jumpers or software definitions of the output channels to prevent signal mismatch or control loop errors.
Storage & Asset Preservation Guidelines
- Store the module inside its original factory ESD-shielded antistatic bag to protect onboard microprocessors, DAC integrated circuits, and bus interface drivers from electrostatic damage.
- Maintain a clean, dry, climate-controlled warehouse environment where relative humidity remains below 85% (non-condensing).
- Avoid mechanical vibration, drops, or physical pressure on the module’s front extraction handles and rear edge-card connector pins.
Physical Installation Prerequisites
- Ensure that loop power supplies, field actuators, and rack power feeds associated with the target slot are completely isolated, de-energized, and locked out (LOTO) prior to module insertion or extraction.
- Handle the circuit board strictly using proper electrostatic discharge (ESD) grounding precautions, such as a tested wrist strap.
- Align the card carefully with the chassis guide slots and seat the rear multi-pin edge connectors firmly into the INFI 90 rack backplane before tightening the top and bottom retention screws.
Buyer’s FAQ & Logistics
Q: What Harmonized System (HS) code applies to this ABB Bailey output module?
A: Industrial process control system cards, modular DCS I/O units, and automatic regulating components typically classify under HS code 8538.90 (Parts suitable for use with electrical control apparatus) or 8537.10. Confirm final codes with your customs broker.
Q: Is configuration required when replacing an IMASO11 module?
A: While the hardware configuration is direct, function block configurations (such as slave addresses, output scaling, and fail-safe fallback modes) reside within the master controller configuration (e.g., Composer or Configurator software). Verify that the node address switches on the module match the slot parameters.
Q: Is the listed online price final for procurement?
A: Note: Price is subject to market availability, hardware revision tiers, and surplus inventory conditions; contact our technical sales desk for a formal, time-sensitive quotation.




