ABB IMASI23 Analog Input Module with 16 Channels for High-Precision Analog Monitoring
The IMASI23 Analog Input Module is a Harmony rack I/O module designed for the Symphony Enterprise Management and Control System. It provides 16 analog input channels that interface isolated thermocouple, millivolt, RTD, and high-level analog signals to a controller, featuring an analog-to-digital conversion resolution of 24 bits.
Each channel includes its own analog-to-digital converter and can be independently configured to handle the required input type. These analog inputs are used by a controller to monitor and control industrial processes.
The module is suitable for applications where high-precision analog monitoring is required, allowing each channel to operate independently and reliably. It ensures accurate signal conversion and provides the necessary interface for controllers to make informed process decisions.
The IMASI23 can serve as a direct replacement for the IMASI03 or IMASI13 modules with only minor modifications. Adjustments to specification S11 in function code 216 are needed to account for differences in resolution options. Additionally, verification of power supply sizing and system current requirements may be necessary due to changes in power consumption.
Count: 16 Analog Inputs.
Mode: Individually programmable / Any mix allowed.
Type Support: TC (Global+Chinese std) / RTD / VDC / mA / mV.
ADC Depth: 24 bits.
Step 1: Filter, Convert, Isolate.
Step 2: Add compensation and corrections.
Step 3: Transmit to Controller (I/O Expander Bus).
Factory Data: Offset, gain, nonlinearity errors (Pre-recorded).
Runtime Action: Automatic recalibration (Aging/Drift compensation).
User Requirement: NONE (No user calibration required).
CJC: Built-in cold junction reference.
Ref Source: Local or Remote (Cross-module read).
Linearization: Standard tables for Deg C/F.
Power Cycle: Not required for install (Hot Swap enabled).
Flexibility: High flexibility in creating process management systems.
| Error Type | Error Description | Analog Input Module Error | Corrective Actions |
|---|---|---|---|
| 14 | Calibration (0EH) problem report (from FC 216) | Channel 1-16 disabled | Remove IMASI23 and reinsert. If error recurs, replace the IMASI23. |
| 14 | Calibration (0EH) problem report (from FC 215) | Cold junction disabled | Remove IMASI23 and reinsert. If error recurs, replace the IMASI23. |
| 14 | Calibration (0EH) problem report (from FC 216) | Channel 1-16 not calibrated | Remove IMASI23 and reinsert. If error recurs, replace the IMASI23. |
| 14 | Calibration (0EH) problem report (from FC 215) | Cold junction not calibrated | Remove IMASI23 and reinsert. If error recurs, replace the IMASI23. |
| 7 | Configuration mismatch problem report (from FC 216) | Channel not configured | Verify that Specs S3 through S9 of the indicated FC 216 are correct. |
| 3 | Channel failure/out of range (03H) problem report (from FC 216) | Channel 1-16 out of range error | Possible open input or signal is out of range. Verify field wiring, connections, sensor and module seating. |
| 3 | Channel failure/out of range (03H) problem report (from FC 215) | Cold junction out of range error | Possible open input or signal is out of range. Verify field wiring, connections, sensor and module seating. |
| 3 | Channel failure/out of range (03H) problem report (from FC 216) | External cold junction reference error | Verify quality of block defined for Spec S3. |
| 3 | Channel failure/out of range (03H) problem report (from FC 216) | Channel 1-16 A/D conversion error | Remove IMASI23 and reinsert. If error recurs, replace the IMASI23. |
| 3 | Channel failure/out of range (03H) problem report (from FC 215) | Cold junction A/D conversion error | Remove IMASI23 and reinsert. If error recurs, replace the IMASI23. |
| 2 | Calibration (02H) problem report (from FC 215) | Unconfigured reference error | Cold junction reference is not zero and has bad quality. Unconfigured channel reference error (unused channel not functioning properly). The I/O module and all configured channels will continue to function properly. |
| 2 | Calibration error (02H) problem report (from FC 215) | Cold junction reference error | Cold junction reference is not zero and has bad quality. Unconfigured channel reference error (unused channel not functioning properly). The I/O module and all configured channels will continue to function properly. |
| 2 | Calibration error (02H) problem report (from FC 216) | Channel 1-16 reference error | Remove IMASI23 and reinsert. If error recurs, replace the IMASI23. |
| 1 | No response/wrong type (01H) problem report (from FC 215) | Any communication failure. Any command or data failure | |
| 1 | No response/wrong type (01H) problem report (from FC 215) | NVRAM error | |
| 1 | No response/wrong type (01H) problem report (from FC 215) | Analog input module A/D reference error | |
| 1 | Calibration error (01H) problem report (from FC 215) | Analog input module not calibrated | |
| 1 | No response/wrong type (01H) problem report (from FC 216) | Channel 1-16 I/O expander bus error | Remove IMASI23 and reinsert. If error recurs, replace the IMASI23. |
| 1 | No response/wrong type (01H) problem report (from FC 215) | Cold junction I/O expander bus error | Remove IMASI23 and reinsert. If error recurs, replace the IMASI23. |
- [PLC] Programmable Logic Controllers
- [DCS] Distributed Control Systems
- [TSI] Turbomachinery Supervisory Instruments
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