Description
‑ Power Supply：Power supplied by Infi90 rack backplane, 5VDC back‑plane power supply
‑ Mechanical Structure：Rack plug‑in module for Symphony Harmony rack；overall weight approx 0.45kg
‑ On‑board Resources：24‑bit ADC conversion circuit, channel isolation circuit, on‑board diagnostic circuit, no independent user program memory.
‑ Communication Interface：Internal rack back‑plane bus, communicate with Infi90 controller.
‑ Galvanic Isolation：Each channel group provides galvanic isolation between field side and system side.
‑ Core Function：Multi‑type analog signal acquisition, thermocouple / RTD temperature measurement, analog‑to‑digital conversion, channel fault self‑diagnosis, upload field data to DCS controller.
‑ Protection：Over‑voltage input protection for each channel.
‑ Status LED Indicators：Module run LED, fault LED, channel status indication.
‑ Weight：approx 0.45kg
‑ IMASI23 provides total 16 universal analog input channels, each channel can be independently configured. Support thermocouple multiple types, Pt series RTD thermal resistance, millivolt signal, voltage analog signal, realize temperature and process variable acquisition。
‑ 24‑bit high‑precision A/D conversion, built‑in cold‑junction compensation for thermocouple measurement. Module collects field signals, converts to digital quantity, transmits data to controller via rack backplane bus.
‑ Built‑in comprehensive self‑diagnosis function: detect channel open circuit, overrange, module hardware fault, diagnostic alarm information upload to DCS operator station.
‑ Must be installed on Symphony Harmony series rack, match supporting terminal unit for field wiring, cannot work independently.
Difference compared with IMAS11: IMASI23 has 16 channels, higher conversion resolution, supports both thermocouple and RTD universal input, IMAS11 is 8‑channel analog input module.
‑ Real‑time collect field analog process signals, transmit data to upper controller.
‑ Complete channel diagnosis: open wire, signal over‑range, module hardware failure, fault status uploaded to DCS system.
‑ No local logic operation function, all control logic executed by Infi90 controller.
‑ Back‑plane：Rack internal back‑plane bus for data communication and power supply.
‑ External interfaces：Connect field sensors via matching terminal base unit.
‑ Mounting：Plug‑in installation on Symphony Harmony standard rack
‑ Operating Temperature：‑10 ℃ ~ +60 ℃
‑ Storage Temperature：‑20 ℃ ~ +70 ℃
‑ Relative Humidity：5‑95 %RH, non‑condensing
‑ Pollution degree：Degree 2
‑ Protection Class：IP20, cabinet‑internal installation.
- IMASI23 analog input module（3BSE008564R1）
Complementary parts: Symphony Harmony rack, matching terminal unit, Infi90 controller, system power supply, field sensors (thermocouple, RTD, voltage transmitters).
‑ Install module into correct slot of Symphony rack, ensure reliable back‑plane connector contact.
‑ Field signal wiring must use supporting terminal unit, wiring strictly distinguish thermocouple、RTD and voltage signal, avoid mis‑wiring causing module damage.
‑ Replace module under power‑off condition is recommended. After replacement, download corresponding channel configuration, verify signal acquisition and diagnostic function.
‑ Pay attention to channel configuration parameters, different signal types cannot be mixed without configuration modification.
Power plant, petrochemical, pulp and paper industry Symphony Infi90 DCS control cabinets; universal temperature and analog signal acquisition spare‑part for Harmony system.
- ABB Symphony Harmony IMASI23 universal analog input module (3BSE008564R1), 16 multi‑function isolated input channels。
- 24‑bit high‑precision A/D conversion, support thermocouple, RTD thermal resistance, millivolt, voltage multi‑type signal acquisition, built‑in thermocouple cold‑junction compensation.
- Rich self‑diagnosis: channel open‑circuit, over‑range, module hardware fault diagnosis and alarm upload.
- Rack plug‑in structure, cooperate with dedicated terminal base for field wiring, cabinet IP20 application.
- No independent control function, belongs to Infi90 DCS I/O subsystem, data interaction through rack back‑plane bus.
- Discontinued legacy DCS spare‑part, used for old‑system maintenance and retrofit projects。
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