Configured for low signal level digital input and output processing in Advant Master DCS and S400 Remote I/O architectures, the ABB DSDX452L (5716075-U Basic Unit) provides direct physical/electrical execution.

Part Number Suffix & Architectural Designation

• Base Model: DSDX452L
• Full Part Number: 5716075-U
• Suffix Character L: Denotes Low Signal Level relay outputs and specialized circuitry
• System Platform: Advant S400 I/O and Advant Master Distributed Control System

Hardware Specifications

PLC and DCS Integration Architecture

• Backplane Communication Velocity: Communicates deterministically with Advant Controller process stations via the MasterFieldbus serial bus interface.
• I/O Density Scaling: Manages 20 digital inputs and 12 digital outputs per basic unit node across distributed system layouts.
• Firmware Flash Compatibility: Fully compatible with standard MasterPiece and Advant OCS controller software releases.
• Network Topology: Supports remote node distribution up to 750 m from the central Process Station using serial data links.

Ordering Information

• 1 x DSDX452L 5716075-U Basic Unit - Low Signal Level
• Standard plastic cover with integrated address switch access lid

Field Installation Guidelines

• DIN-Rail and Chassis Mounting: Mount the unit securely within industrial cabinets, ensuring proper mechanical clearance for heat dissipation within the specified operating temperature envelope.
• Signal Wiring & Shielding: Connect digital field devices using two-wire termination blocks directly on the unit without requiring auxiliary terminal blocks. Route communication cables separately from high-voltage lines.
• Address Configuration: Set station and node addresses via the hardware address switches concealed beneath the access lid on the plastic front cover.
• Power Verification: Confirm the stability of the 24 VDC external supply before energizing the module to protect internal low-level signal circuitry.

Frequently Asked Questions

• What is the primary function of the DSDX452L basic unit?

  The unit acts as a remote I/O node supporting 20 digital inputs and 12 low-level digital outputs within Advant S400 systems.

• How does the unit communicate with the process station?

  It utilizes the ABB MasterFieldbus serial communication protocol to exchange data over distances up to 750 m.

• What does the letter L indicate in the DSDX452L model designation?

  The L suffix specifies low signal level output configuration tailored for sensitive control loops.

• Where are the hardware address switches located?

  The address configuration switches are situated beneath a protective lid on the front plastic cover.

• What power supply voltage is required for operation?

  The module requires a nominal 24 VDC external power supply and consumes no more than 4 W of power.

• Are separate terminal blocks needed for field wiring?

  No, all input and output points utilize integrated two-wire connectors directly on the unit architecture.

• What is the galvanic isolation rating of this hardware?

  The unit provides an electrical isolation rating of 2 kV AC to protect against transient voltage surges.

• Can this unit be deployed in distributed industrial layouts?

  Yes, it is specifically engineered as a remote I/O unit for spread-out industrial environments connected via serial fieldbus.