Siemens SIMATIC ET 200SP BaseUnit Type A0 6ES7193-6BP00-0DA0 for PLC Modules

6ES7193-6BP00-0DA0 Product Overview

The 6ES7193-6BP00-0DA0 is a core base unit in Siemens' SIMATIC ET 200SP distributed I/O system. This model, BU15-P16+A0+2D (Type A0) , features a compact design with a width of just 15 mm. It serves as the carrier and connection point for various I/O modules (e.g., digital and analog modules) within the ET 200SP system.

This base unit utilizes an innovative push-in front connection technology, supports a 24V DC rated supply voltage, and introduces a new load group to optimize system power distribution. It offers a maximum backplane bus current (P1/P2) of 10A and a process terminal current rating of 2A. Without an AUX auxiliary terminal, this unit is designed for configurations requiring a new power segment.

The 6ES7193-6BP00-0DA0 supports a wide operating temperature range, from -30°C to 60°C for horizontal mounting, and has an IP20 protection rating. As the mechanical and electrical backbone of an ET 200SP station, it significantly simplifies field wiring and improves cabinet space utilization, making it an ideal choice for distributed automation control.

6ES7193-6BP00-0DA0 Key Features

• Ultra-Narrow Width Design: Just 15 mm (height: 117 mm, depth: 35 mm). Saves significant rail space in control cabinets, ideal for high-density integration.

• Push-In Terminal Connection: Advanced push-in technology enables quick, tool-free, and secure connection of solid wires, offering high vibration resistance and easier maintenance.

• New Load Group Support: Allows creation of new potential groups. When the system requires different power segments, this unit can act as the start of a new load group without needing an AUX auxiliary terminal.

• High Current Carrying Capacity:

  • P1/P2 backplane bus: max 10A

  • Process terminals: max 2A
    Ensures stable power supply during multi-module expansion.

• Wide Temperature Tolerance: Suitable for extreme environments. Operating temperature: -30°C to 60°C (horizontal mounting), -30°C to 50°C (vertical mounting).

• Integrated Protection Circuitry: Includes a power filter. The power supply circuit requires a 10A miniature circuit breaker (Type B/C trip characteristic) for short-circuit and overload protection.

  
  

6ES7193-6BP00-0DA0 Applications

• Distributed I/O Station Setup: Serves as the physical foundation for an ET 200SP station, hosting various function modules (e.g., 8DI, 16DI, 8DQ). Widely used in automotive manufacturing and logistics sorting lines.

• Process Automation: In chemical, pharmaceutical, and environmental sectors, it connects field sensors and actuators, enabling remote data acquisition via PROFIBUS/PROFINET.

• Factory Automation: In CNC machines, packaging machinery, and assembly lines, its compact design saves electrical cabinet space and enables high-density control.

• Safety System Integration: This specific base unit can also be used in safety systems (e.g., fail-safe modules) to support applications requiring emergency stops or safety monitoring.

  
  

6ES7193-6BP00-0DA0 Advantages & Highlights

• Space and Cost Optimization: The 15 mm ultra-slim design breaks traditional PLC terminal width limits, helping users significantly reduce cabinet dimensions, lowering material and floor space costs.

• Tool-Free Efficient Wiring: Push-in technology is over 50% faster than traditional screw terminals and eliminates risks of loose connections, greatly reducing labor and maintenance costs.

• Flexible Power Segmentation: The "new load group" feature allows users to create different power zones within the same station without additional power modules, offering greater design flexibility.

• Enhanced Backplane Bus Power: 10A current capacity on P1/P2 far exceeds typical small PLC backplanes, allowing more I/O modules to be connected to a single station, greatly enhancing expansion capability.

• Global Certifications: RoHS-compliant, with original German quality assurance. ECCN classification: EAR99, with relaxed export controls, facilitating global procurement.

  
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FAQ:

1. What is the Siemens 6ES7193-6BP00-0DA0 BaseUnit and what is it used for?
   This is a Type A0 BaseUnit for the SIMATIC ET 200SP distributed I/O system. It serves as the mechanical and electrical carrier for an electronic I/O module, providing the connection to the backplane bus and the screw‑type terminals for field wiring. It also feeds a new 24 V potential group, supplying power to the module plugged onto it and to all modules to its right until the next light‑colored BaseUnit.

2. What does “Type A0” mean, and how does it differ from Type A1 or B0?
   The color and letter code define the potential group behavior. A0 is a light‑colored BaseUnit that opens a new potential group; it provides its own AUX terminals for feeding 24 V DC. A1 is also light‑colored but does not have its own AUX terminals—it simply continues the potential group from the left. B0 and B1 are dark‑colored BaseUnits that do not open a new potential group; they pass through the power from the left. Choose A0 when you need to start a fresh 24 V supply segment for the modules to the right.

3. How does the A0 BaseUnit create a new potential group?
   When you snap an A0 BaseUnit onto the rail, its AUX terminals (A1 and A2) become the power entry point. The 24 V connected there feeds the electronic module mounted on this BaseUnit and is also forwarded to all subsequent BaseUnits (of any type) to the right, until another light‑colored BaseUnit (A0 or A1) is encountered. This allows you to isolate power sections within a station without external terminal blocks.

4. Which ET 200SP I/O modules are compatible with this A0 BaseUnit?
   Any standard ET 200SP electronic module that requires a light‑colored BaseUnit is compatible—the vast majority of digital and analog input/output modules, technology modules, and communication processors. The module’s specific BaseUnit requirement is listed in its data sheet; most modules specify “BU type A0” as the default choice for a new potential group.

5. What type of wiring terminals does this BaseUnit use, and what is the maximum wire gauge?
   The 6ES7193‑6BP00‑0DA0 is the screw‑terminal variant. The terminals accept solid, stranded, and ferruled conductors with a cross‑section of 0.14 mm² to 2.5 mm² (AWG 26‑14). The screw terminals are tightened with a 3 mm flat‑head screwdriver. A push‑in spring‑type variant also exists under the 6ES7193‑6BP00‑0BA0 order number.

6. Can I replace an electronic module without removing the BaseUnit wiring?
   Yes. The BaseUnit remains fixed on the DIN rail and all field wiring stays connected to its terminals. The electronic module is simply unclipped from the BaseUnit and a new one snapped on. This hot‑swapping capability dramatically reduces downtime during maintenance, as no tools are needed and the wiring is never disturbed.

7. How do I connect the 24 V DC supply to the A0 BaseUnit?
   Connect the positive wire to terminal A1 (+24 V) and the negative wire to terminal A2 (0 V). These terminals are clearly marked on the BaseUnit. The 24 V DC supply is typically brought from a power supply module or an external source, and it powers both the electronics of the plugged‑on module and any field devices wired through its input/output terminals.

8. How many A0 BaseUnits can I use in one ET 200SP station?
   There is no fixed limit on the number of A0 BaseUnits in a station. You can use as many as you need to segment the 24 V supply into independent potential groups—for example, one A0 per 8‑10 modules to keep the load within the AUX bus rating. The practical limit is the total number of modules supported by the station’s interface module.

9. What are the additional terminals (e.g., D1, D2) on the BaseUnit used for?
   These are extra terminals that can be used for connecting shield clamps, additional ground references, or as spare clamping points. Their exact function depends on the specific electronic module plugged onto the BaseUnit. They do not carry the backplane bus signal and are not part of the potential group feed.

10. What are the key benefits of the ET 200SP BaseUnit system in industrial automation?
    The separation of wiring and electronics drastically simplifies commissioning and maintenance. Field devices are wired once to the BaseUnit; during a module failure, only the electronic module is swapped, with no risk of miswiring. The potential group concept eliminates the need for external terminal blocks, reduces panel clutter, and improves diagnostic clarity by grouping modules by supply section.