The BaseUnit BU15-P16 + A0 + 2D (Part No. 6ES7 193-6BP00-0DA0) is a modular foundation component of the SIMATIC ET 200SP distributed I/O system. Engineered for DIN-rail mounting, this compact and robust base supports seamless integration of ET 200SP I/O and interface modules, enabling scalable, flexible automation architectures.
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Key Technical Specifications

Designation & Configuration

Model: BaseUnit BU15-P16 + A0 + 2D, BU type A0, new load group.
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SPS-SERVICE Industrial Automation

Designed with push-in terminals for secure and tool-free wiring.
SPS-SERVICE Industrial Automation
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Mechanical Dimensions

Slim and space-efficient: approximately 15 mm width × 117 mm height, optimized for dense panel integration.
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SPS-SERVICE Industrial Automation

Electrical Characteristics

Supply Voltage: 24 V DC (rated).
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External Protection: Requires a 24 V DC, 10 A miniature circuit breaker (Type B or C).
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Backplane Current Capacity: Supports up to 10 A on the P1 and P2 bus connectors—facilitates powering multiple downstream I/O modules.
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System Compatibility

Serves as the mounting and power bus foundation for various ET 200SP I/O modules such as analog, digital, and interface types (e.g. AI/AQ/DI/DQ modules).
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Lifecycle & Availability

Market status: Active (PM300), ensuring continued availability and support.
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Engineering Highlights & Benefits

Compact & Modular Design
The 15 mm-wide base enables dense installation, making optimal use of control cabinet space without sacrificing module capacity.

Simplified Wiring & Integration
Push-in terminals offer robust connections with straightforward, tool-less handling, increasing installation speed and reliability.

High Load Compatibility
With a 10 A backplane capacity, it can reliably distribute power across a range of I/O modules—supporting complex configurations with ease.

Safe & Compliant
Requires standard 10 A miniature circuit breaker protection, aligning with industrial safety norms and ensuring reliable operation.

Scalable Platform
Functions as the backbone for the ET 200SP system, supporting distributed I/O topologies and enabling jigsaw-like modular expansion.

Technical Overview Table
Specification Details
Part Number 6ES7 193-6BP00-0DA0
BaseUnit Type BU15-P16 + A0 + 2D (BU type A0)
Mounting & Terminals DIN-rail, push-in terminals
Dimensions (W×H) ~15 mm × 117 mm
Supply Voltage 24 V DC
External Protection 24 V DC / 10 A, Type B or C breaker required
Backplane Capacity Max. 10 A on P1/P2 bus
System Integration Base for ET 200SP I/O modules
Lifecycle Status Active (PM300)
Ideal Applications

Distributed I/O Deployments
Acts as a compact and powerful core for ET 200SP setups, especially effective where spatial constraints are a factor.

High-Density Automation
Ideal for operations requiring tight panel layouts—ensures a large number of I/O points within minimal footprint.

Robust Industrial Installations
Supports tool-free, secure wiring, consistent power delivery, and scalable module integration—suitable for both retrofits and greenfield projects.

Flexible System Growth
Designed for phased expansion—supports adding modules as requirements evolve, without redesigning infrastructure.

Conclusion

The SIMATIC ET 200SP BaseUnit BU15-P16 + A0 + 2D (6ES7 193-6BP00-0DA0) is a high-density, modular base solution tailored for modern industrial automation. It delivers efficient space management, solid power infrastructure, and seamless integration with ET 200SP I/O modules—all while staying compact and safe. A critical foundation for scalable and adaptable control systems.