Overview
The ABB 5716075-K DSDX 451 is a Remote In/Out Expansion Unit engineered for ABB Advant OCS control systems. This compact I/O module extends the digital input and output capacity of existing distributed control systems, making it ideal for expanding PLC or process automation applications without replacing core controllers. With proven reliability in process industries, the DSDX 451 integrates seamlessly into legacy ABB systems.
Key Features
- 20 digital input channels at 24V DC
- 12 digital output channels with 0.1–3A per channel capacity
- Compact form factor for space-constrained cabinets
- Remote installation capability for distributed I/O control
- Standard plug connectors (2-position, 4-position, 8-position available)
Technical Specifications
- Digital Inputs: 20 channels @ 24V DC
- Digital Outputs: 12 channels @ 0.1–3A per channel
- Power Supply: 240/220/120V AC, 47–63 Hz, 50 VA
- Fuse Rating: 500 mA (Part No. 56722011-11)
- Dimensions: Height 180 mm × Width 94.5 mm × Depth 216 mm
- Weight: 2.9 kg
- Environmental Category: WEEE Category 5 (Small Equipment)
- RoHS Exemption: 2011/65/EU Article 2(4) as per 3BSE088609 EU Declaration
Typical Applications
The DSDX 451 expansion module is commonly deployed in:
- Process control and batch operations requiring remote I/O distribution
- Pulp, paper, and chemical manufacturing plants using ABB Advant systems
- Distributed automation networks where local I/O handling reduces main processor load
- Upgrade projects extending legacy control system capacity without controller replacement
Compatibility & Replacements
The ABB 5716075-K operates as a dedicated expansion node for ABB Advant Master DCS platforms. This unit is part of the DSDX 451 family and maintains compatibility with standard ABB connector types (plugs 2-position 2664193-2, 4-position 2664197-4, and 8-position 2664193-8). For system integrators seeking drop-in I/O expansion without reconfiguring main processors, the DSDX 451 is a proven, field-proven solution. The cover (spare Part No. 21580351-2) is available separately.
