Overview

The KJ3203X1‑BK1 (Part No. 12P4694) is a DeltaV S‑Series Discrete Input Card used in Emerson’s distributed control system (DCS). It provides 32 channels of 24 VDC dry contact inputs, enabling the system to monitor on/off status signals from field devices such as switches, pushbuttons, and relays.

Engineered for high-density input applications, the card reduces cabinet space requirements while maintaining robust performance. It features optical isolation per channel, fast scan times, and support for redundant communication, ensuring high availability in mission-critical automation environments.

Technical Specifications

Typical Applications

• Process Automation: Monitoring discrete signals in chemical, petrochemical, and refining plants.

• Power Generation: Interfaces with turbine and boiler protection systems.

• Oil & Gas: Provides reliable input monitoring for drilling and pipeline operations.

• Manufacturing: Used in automotive and food & beverage industries for machine status monitoring.

• Utilities: Applied in water treatment and distribution systems.

Example:
In a refinery, the KJ3203X1‑BK1 card can monitor valve limit switches and pump status signals, ensuring operators have real-time visibility into equipment conditions.

FAQ

Q1: What is the primary function of the KJ3203X1‑BK1?
A1: It collects 32 discrete dry contact signals and converts them into digital data for the DeltaV system.

Q2: What voltage range does it support?
A2: It accepts 18–32 VDC inputs, nominally 24 VDC.

Q3: Is it suitable for hazardous environments?
A3: Yes, it is certified for ATEX, IECEx, FM, and UL Class I Div. 2 installations.

Q4: How fast is the scan time?
A4: Inputs are scanned in less than 1 ms, ensuring real-time responsiveness.

Q5: Is redundancy supported?
A5: Yes, it supports redundant communication for high-availability systems.