Product Overview

The Emerson CL6721X1-A4 41B5215X132 Discrete I/O Card is engineered for reliable digital signal acquisition and control in industrial environments. Designed for use within the DeltaV DCS architecture, this module combines both input and output capabilities in a single unit, enabling flexible communication with field devices such as limit switches, relays, and solenoids.

Moreover, the card operates on a 24VDC input and draws 12VDC from the local bus, making it energy-efficient and easy to integrate into existing control panels. In addition, its compact form factor and CE certification ensure compliance with global industrial standards.

Therefore, this I/O card is a trusted solution for engineers seeking dependable digital control in power generation, chemical processing, and oil & gas applications.

Technical Specifications

Typical Applications

The CL6721X1-A4 card is widely used in industrial automation systems requiring discrete signal control. For instance:

• Oil & Gas: Interfaces with pressure switches, valve position indicators, and emergency shutdown systems

• Chemical Processing: Controls solenoids and monitors safety interlocks in hazardous zones

• Power Generation: Manages turbine status signals and breaker positions

• Water & Wastewater: Operates pump start/stop commands and level switch feedback

• Factory Automation: Connects to machine sensors, operator panels, and alarm systems

In addition, its dual I/O functionality reduces module count and simplifies wiring in distributed control systems.

System Integration Experience

Emerson’s DeltaV platform is known for its modularity and ease of integration. The CL6721X1-A4 card fits seamlessly into DeltaV I/O racks, supporting plug-and-play installation and fast commissioning. Moreover, its compact design and low power consumption contribute to efficient cabinet layout and reduced heat load.

Therefore, system integrators benefit from flexible deployment, simplified maintenance, and long-term reliability in mission-critical environments.

FAQ

Q: What voltage does the CL6721X1-A4 support?
A: It supports 24VDC input signals and draws 12VDC from the local bus.

Q: How many channels does it have?
A: It includes 4 discrete input/output channels.

Q: Is it compatible with DeltaV systems?
A: Yes, it’s designed for seamless integration with Emerson’s DeltaV DCS.

Q: What’s the operating temperature range?
A: It functions reliably from –20°C to +60°C.

Q: What field devices can it connect to?
A: It connects to switches, sensors, relays, solenoids, and other digital devices.