1C31132G01 high-reliability digital input/output (I/O) combination module

1C31132G01 is a high-reliability digital input/output (I/O) combination module developed by Westinghouse (now integrated into Emerson Automation Solutions) for its Ovation Distributed Control System (DCS). It integrates both digital input and output functions in a single module, enabling simultaneous collection of discrete status signals and control of field actuators—ideal for space-constrained industrial scenarios that require both monitoring and control capabilities. Below is its detailed information:

1. Core Technical Specifications

Parameter Category	Specific Details
I/O Channel Configuration	- Digital Input (DI): 8 independent isolated channels, divided into 2 isolation groups (4 channels per group).- Digital Output (DO): 8 independent isolated channels, divided into 2 isolation groups (4 channels per group).Isolation design eliminates cross-interference between input/output signals and between channels.
Supported Signals	- Digital Input:- Dry contact signals (normally open/NO, normally closed/NC) for mechanical switches (e.g., limit switches, relay contacts).- DC voltage signals (24V DC typical), with "on" threshold ≥18V DC and "off" threshold ≤5V DC.- Input current: ≤10mA per channel (low power consumption).- Digital Output:- DC voltage signals (24V DC typical), configurable "on/off" thresholds.- Load capacity: 2A continuous current per channel, 5A peak current (for short startup periods).- Compatible with actuators like relays, solenoid valves, and indicator lights.
Response Time	- Input response: ≤1ms (captures transient signals like emergency stops, ensuring timely DCS feedback).- Output response: ≤10ms (executes control commands quickly, suitable for dynamic process adjustments).
Power Supply	24V DC ±10% (power consumption ≤8W), fully compatible with Ovation DCS rack power modules (e.g., 1C31234G01). Adapts to voltage fluctuations in industrial power grids, avoiding operation interruptions.