1C31116G05 high-density digital input module

1C31116G05 is a high-density digital input module developed by Westinghouse (now integrated into Emerson Automation Solutions) for its Ovation Distributed Control System (DCS). It is specialized in collecting large quantities of discrete status signals from industrial field devices, with a focus on high channel density and anti-interference performance—ideal for scenarios requiring centralized monitoring of multiple on-site components (such as switches, sensors, and relay contacts). Below is its detailed information:

1. Core Technical Specifications

Parameter Category	Specific Details
Input Channel Configuration	32 independent optically isolated digital input channels, divided into 8 isolation groups (4 channels per group). Optical isolation design eliminates cross-interference between channels and between the module and the system backplane.
Supported Input Signals	- Signal type: Dry contact signals (normally open/NO, normally closed/NC) for mechanical switches (e.g., limit switches, emergency stop buttons, relay auxiliary contacts).- DC voltage signals: 24V DC (typical), compatible with 18–30V DC wide input range.- Input threshold: "On" threshold ≥18V DC, "Off" threshold ≤5V DC (avoids misjudgment caused by voltage fluctuations).- Input current: ≤5mA per channel (ultra-low power consumption, reducing load on field signal sources).
Response Performance	- Input response time: ≤1ms (captures transient signals like emergency stops or fault triggers in real time, ensuring timely feedback to the Ovation DCS).- Debounce time: Configurable (1ms–100ms) via Ovation Control Studio, filtering out contact bounce noise from mechanical switches.
Power Supply	24V DC ±10% (power consumption ≤6W), fully compatible with Ovation DCS rack power modules (e.g., 1C31234G01). Adapts to voltage fluctuations in industrial power grids, avoiding signal acquisition interruptions.