The ABB IMSET01 (referenced by part numbers GM9.0082.001.52 and E96-631) is a precision Sequence of Events (SOE) Time Keeper and Slave Module designed for the Symphony Harmony and INFI 90 distributed control systems. This module is specialized for high-speed disturbance analysis, capturing digital input transitions with an industry-leading 1-millisecond resolution. By maintaining a localized event buffer and a synchronized high-resolution clock, the IMSET01 allows plant operators to reconstruct the exact order of alarms, trips, and system disturbances. It is a critical component for power generation safety systems and complex process interlocking where understanding the "first-out" event is essential for root cause analysis.
The functional and electrical parameters for the IMSET01 are detailed below:
| Parameter | Specification Details |
| Model Number | IMSET01 |
| Part/Sequence No. | GM9.0082.001.52 / E96-631 |
| Manufacturer | ABB Bailey (United States) |
| Product Type | Sequence of Events (SOE) Timing Module |
| Input Channels | 16 Digital Inputs (Dry Contact/Potential-free) |
| Timestamp Resolution | 1 ms |
| Event Buffer | Local storage for up to 1024 events |
| Nominal Input Voltage | 48 VDC (Typical field side) |
| Isolation | 2000 V RMS (Channel-to-Channel & Channel-to-System) |
| Power Requirements | 24 VDC via backplane (~10 W) |
| Dimensions (WxHxD) | 2.5 cm x 17.8 cm x 5.1 cm (1.0" x 7.0" x 2.0") |
| Module Weight | 0.37 kg (0.81 lbs) |
| Shipping Weight | 1.5 kg |
| Tariff Code | 8538907080 |
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