Siemens 6ED1055-1CB10-0BA2 16-channel Sourcing Digital Input Module

The Siemens 6ED1055-1CB10-0BA2 is a robust 16-channel sourcing digital input module designed for demanding industrial automation tasks. This module excels in providing reliable signal acquisition for programmable logic controllers (PLCs), particularly within the LOGO! 8 series. Its key advantages lie in its high channel density, superior noise immunity, and straightforward integration capabilities, making it an indispensable component for process control and factory automation. Critical technical parameters include 16 digital inputs, a sourcing output configuration, and compatibility with 24V DC control voltages, ensuring seamless operation in diverse industrial environments.

Product Specifications

| Feature                 | Specification                                     |

| :---------------------- | :------------------------------------------------ |

| Product Type            | Digital Input Module                              |

| Manufacturer            | Siemens                                           |

| Product Number          | 6ED1055-1CB10-0BA2                                |

| Number of Channels      | 16                                                |

| Input Type              | Sourcing Digital Inputs                           |

| Nominal Voltage         | 24 V DC                                           |

| Operating Voltage Range | 20.4 V DC to 26.4 V DC                            |

| Input Current           | 5 mA per channel (typical)                        |

| Isolation               | Galvanic isolation between channels and backplane |

| Connection Type         | Screw terminals                                   |

| Operating Temperature   | 0°C to 55°C                                       |

| Dimensions (H x W x D)  | 54.5 mm x 35 mm x 55 mm                           |

Core Features & Market Positioning

The Siemens 6ED1055-1CB10-0BA2 distinguishes itself through its high channel density, offering 16 inputs in a compact form factor, which is crucial for space-constrained control panels. Its sourcing output design simplifies wiring for common sensor types like proximity switches and photoelectric sensors, directly supplying power to the input devices. This module is positioned as a cost-effective yet highly reliable solution for basic to intermediate automation tasks, particularly when integrated with Siemens LOGO! 8 logic modules. The robust construction and adherence to stringent industrial standards ensure longevity and dependable performance in harsh environments, setting it apart from less durable alternatives.

Key Application Scenarios

This 16-channel sourcing digital input module is ideally suited for a wide array of industrial applications. It finds extensive use in machine automation for monitoring limit switches, push buttons, and other discrete signals from machinery. In building automation, it can manage inputs from door contacts, window sensors, and status indicators. The module is also prevalent in process control for applications requiring the monitoring of valves, pumps, and level switches within water treatment plants, chemical processing, and the food and beverage industry. Its versatility makes it a go-to component for gathering binary information in any scenario demanding robust and efficient digital signal acquisition.

Practical System Integration Guidance

Integrating the Siemens 6ED1055-1CB10-0BA2 into an automation system is streamlined due to its plug-and-play compatibility with Siemens LOGO! 8 base units. Installation typically involves DIN rail mounting, followed by direct wiring of the 24V DC sensors to the module's screw terminals. For sourcing inputs, the positive terminal of the 24V DC supply connects to the L+ terminal, while the sensors' positive outputs connect to the individual input channels (I1 to I16). The common negative return for the sensors is connected to the M terminal. Within the LOGO! soft comfort software, these inputs are directly mapped to logical addresses, allowing for straightforward programming of control logic based on the status of each input channel.

Operation and Risk Mitigation

Proper operation of the 6ED1055-1CB10-0BA2 requires adherence to its specified voltage and current ratings to prevent module damage. Ensure all connections are secure before powering the system. For risk mitigation, it is crucial to implement proper grounding and electrical isolation as per industrial safety standards. Avoid exposing the module to environments with excessive dust, moisture, or corrosive substances beyond its IP rating. If an input channel fails to register a signal, common troubleshooting steps include verifying the sensor's functionality, checking wiring integrity, and confirming the correct sourcing configuration in the PLC program. Overloading input channels can lead to malfunction; always adhere to the 5mA per channel specification.

Scalability & Long-Term Value

The Siemens 6ED1055-1CB10-0BA2 offers excellent scalability within the Siemens ecosystem. It can be readily expanded by adding more input/output modules to a LOGO! 8 base unit, accommodating growing automation needs without requiring a complete system overhaul. Its compatibility with other Siemens industrial components ensures seamless integration into larger automation architectures, including SCADA systems and higher-tier PLCs. The module's robust design contributes to its long-term value by minimizing downtime and maintenance requirements, providing a reliable foundation for digital signal processing in evolving industrial environments, and supporting future upgrades to IIoT-enabled solutions.

Frequently Asked Questions

What is the primary function of the Siemens 6ED1055-1CB10-0BA2?

This module serves as a crucial interface for collecting binary signals from field devices. It provides 16 distinct channels to detect the status of sensors and switches.

It translates these physical states into digital data that the PLC can process for control logic. The module is specifically designed for sourcing type digital inputs, simplifying wiring for certain sensor configurations.

This ensures reliable data acquisition in industrial automation settings, enabling intelligent decision-making within control systems. It’s a core component for monitoring equipment status.

How do I wire the Siemens 6ED1055-1CB10-0BA2 for sourcing inputs?

Connect the positive terminal of your 24V DC power supply to the L+ terminal on the module. Then, connect the sensor's positive output terminal to one of the input channels (I1-I16).

The common negative return for all connected sensors should be wired to the M terminal on the module. Ensure all connections are secure to prevent intermittent signals or faults.

Always refer to the specific sensor's datasheet and the Siemens manual for precise wiring diagrams and best practices to avoid damage or malfunction. This ensures proper sourcing operation.

What are the main advantages of using a sourcing digital input module?

Sourcing modules simplify wiring when using PNP-type sensors, which are common in industrial applications. They directly provide the positive voltage to the sensor.

This configuration can reduce the number of wires needed in complex setups and can be more intuitive for certain automation tasks. It’s efficient for direct device powering.

The sourcing design is well-suited for integrating with devices like proximity sensors, push buttons, and limit switches that require a voltage source from the input module. This enhances versatility.

What environments is the Siemens 6ED1055-1CB10-0BA2 suitable for?

This module is designed for industrial environments and features robust construction to withstand typical factory conditions. It operates reliably within a specified temperature range.

It is essential to ensure the module is protected from excessive moisture, dust, and corrosive elements that could degrade its performance or lifespan. Proper enclosure is key.

While durable, it’s always recommended to consult the product's IP rating and environmental specifications to confirm its suitability for specific, challenging operating conditions. This guarantees longevity.

Can the Siemens 6ED1055-1CB10-0BA2 be used with PLCs other than Siemens LOGO! 8?

While optimized for Siemens LOGO! 8, the module's basic functionality as a digital input interface may allow integration with other PLCs. However, this requires careful consideration of voltage levels and signal compatibility.

You would need to verify that the target PLC's input specifications match the 24V DC sourcing output of the Siemens module. Compatibility checks are crucial for success.

Integration with non-Siemens PLCs often requires additional interface circuitry or specific configuration within the PLC's programming software to ensure proper communication and signal interpretation. It may not be plug-and-play.

What is the typical input current draw per channel?

Each individual input channel on the Siemens 6ED1055-1CB10-0BA2 typically draws approximately 5 mA when activated. This value is important for power supply sizing.

When all 16 channels are simultaneously active, the total current draw from the power supply for the inputs alone would be around 80 mA (16 channels x 5 mA/channel). This calculation is vital.

Ensure your 24V DC power supply has sufficient capacity to handle this input current, along with the power requirements of the LOGO! base unit and any other connected modules or devices. Load calculation is essential.

How does the sourcing configuration differ from sinking?

In a sourcing configuration, the input module supplies the positive voltage to the sensor. The sensor then connects back to the module's common negative (M).

In contrast, a sinking configuration means the input module provides the common negative connection, and the sensor connects to a positive voltage source. The module then "sinks" the current.

Understanding this difference is critical for selecting the correct module type based on the sensors you are using and for proper system wiring. It affects how current flows.

What are the dimensions and mounting requirements for this module?

The module has compact dimensions of approximately 54.5 mm (height) x 35 mm (width) x 55 mm (depth). These small dimensions are ideal for space-saving installations.

It is designed for standard 35mm DIN rail mounting, which is a common standard in industrial control cabinets. This facilitates quick and secure installation.

Ensure adequate ventilation around the module when mounting, especially when multiple modules are installed together, to prevent overheating and ensure optimal performance. Airflow is important.

How does this module contribute to industrial automation reliability?

Its robust Siemens construction and adherence to industrial standards ensure dependable signal acquisition, minimizing the risk of false readings or signal loss. This stability is key.

The galvanic isolation between channels and the backplane protects the PLC from voltage spikes or ground loops, further enhancing system reliability and safety. This isolation is a critical feature.

By providing consistent and accurate input data, it enables more predictable and reliable control system operation, reducing potential downtime and production interruptions. Accurate data leads to reliable control.

What is the operating voltage range for the Siemens 6ED1055-1CB10-0BA2?

The module is designed to operate within a nominal voltage of 24V DC. Its specified operating voltage range is from 20.4V DC to 26.4V DC.

Operating outside this specified range can lead to erratic behavior or permanent damage to the module. Always ensure a stable and regulated 24V DC power supply.

Maintaining voltage within this window is crucial for consistent performance and longevity of the digital input module in demanding industrial applications. Voltage stability is paramount.