ABB DSCL 110A Redundancy Control Module (57310001-KY)

General Description

In modern industrial automation, high availability is paramount. The DSCL 110A module (part number 57310001-KY) provides the hardware and logic necessary to implement redundant controller configurations. It connects two identical controllers (primary and secondary) and ensures they operate in lockstep. If the primary controller fails, the secondary takes over instantly without disturbing the process.

Key Functions

• Synchronization: Maintains identical data and execution states between paired controllers via dedicated high-speed link.

• Failover Management: Detects faults (e.g., power loss, CPU error, communication failure) and triggers automatic switchover.

• Bumpless Transfer: Ensures that outputs do not glitch during changeover; the new primary continues with the last valid values.

• Diagnostics: Front LEDs indicate system role (primary/secondary), link status, and error conditions.

• Redundancy Modes: Supports 1:1 hot standby and 1:1 warm standby configurations as per application requirements.

Technical Specifications

• Compatibility: ABB Advant Controller 410/450, AC 800M with appropriate base plates.

• Communication: Redundancy link via fiber optic or copper (depending on version) up to 100 Mbps.

• Power Supply: 5 V DC and 24 V DC derived from backplane.

• Operating Temperature: 0°C to +60°C.

• Dimensions: 4HP wide (approx. 20 mm), compatible with standard 19" racks.

• Weight: 0.2 kg.

Installation and Configuration

The DSCL 110A plugs into a dedicated slot on the controller baseplate. Two modules are required per redundant pair (one in each controller). Configuration is performed using ABB's Control Builder or 800xA engineering tools, where the redundancy parameters (switchover delay, synchronization timeout, etc.) are set. The module automatically negotiates the primary role at startup based on predefined priorities.

Applications

• Power generation and distribution control.

• Oil and gas pipelines requiring continuous operation.

• Water treatment plants with high uptime demands.

• Chemical processes where safety and availability are critical.

Certifications

• CE, UL, and CSA certified.

• Suitable for SIL2 applications when used in appropriate system architecture.

Note: Technical data provided for reference; always refer to the product manual for detailed engineering guidelines.