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The 8C-PDISA1 is a high-density 32-channel digital input (DI) module designed for the Experion C300 Series 8 platform. It is specifically engineered for Sequence of Events (SOE) recording, providing sub-millisecond time-stamping for critical process transitions.
Its slim,...
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The 8C-PDISA1 is a high-density 32-channel digital input (DI) module designed for the Experion C300 Series 8 platform. It is specifically engineered for Sequence of Events (SOE) recording, providing sub-millisecond time-stamping for critical process transitions.
Its slim, vertical form factor supports high-density Series 8 cabinets, maintaining excellent thermal performance and electromagnetic immunity. The module is ideal for root-cause analysis and plant event reconstruction, ensuring that all critical digital transitions are captured with precision.
| Parameter | Specification |
|---|---|
| Module Identifier | 8C-PDISA1 |
| Input Channels | 32 (Sink/Source dependent on wiring) |
| Functional Type | Digital Input with SOE capabilities |
| Nominal Operating Voltage | 24 VDC |
| Input Voltage Range | 18–30 VDC |
| SOE Resolution | 1 ms time-stamping accuracy |
| On-State Voltage | > 13 VDC |
| Off-State Voltage | < 5 VDC |
| Input Current | 3.5 mA @ 24 VDC |
| Physical Dimensions (H×W×D) | 17.8 × 4.6 × 24.9 cm |
| Weight | 0.24 kg |
| Installation Compatibility | Series 8 I/O Termination Assembly (IOTA) |
Sequence of Events Recording – Capture critical process transitions for root-cause analysis.
Industrial Shutdown Analysis – Reconstruct timelines of events during plant trips.
High-Density Cabinet Deployment – Optimized for Series 8 vertical I/O racks.
Critical Digital Monitoring – Sub-millisecond precision in process control environments.
What is the difference between this SOE module and a standard DI module?
The 8C-PDISA1 includes onboard buffers and clock synchronization, enabling it to stamp events at the hardware level the instant they occur. Standard DI modules report digital status at the controller’s scan rate, which can miss transient events.
