Siemens 6ED1055-1MM00-0BA2 8-point Mixed I/O Module for PLC Systems

The Siemens 6ED1055-1MM00-0BA2 is an expansion module designed for the LOGO! 8 PLC system, offering two analog outputs for precise control in various industrial applications. This module is crucial for users needing to translate digital signals into variable analog outputs, such as controlling motor speeds, adjusting valve positions, or managing heating elements. Its compatibility with the LOGO! platform ensures seamless integration and enhanced functionality for small to medium-sized automation tasks.

Product Specifications

| Specification           | Value                                     |

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

| Product Number          | 6ED1055-1MM00-0BA2                        |

| Brand                   | Siemens                                   |

| Product Type            | LOGO! AM2 AQ Expansion Module             |

| Supply Voltage          | 24 V DC                                   |

| Number of Analog Outputs| 2                                         |

| Output Signal           | 0-10 V DC, 0/4-20 mA                      |

| Mounting                | 35 mm DIN rail                            |

| Dimensions (H x W x D)  | 90 mm x 35.5 mm x 58 mm                   |

| Operating Temperature   | 0 to +55°C                                |

| IP Rating               | IP20                                      |

| Net Weight              | 0.132 Kg                                  |

| Packaging Dimensions    | 9.60 x 7.00 x 5.50 cm                     |

Core Features & Market Positioning

The Siemens 6ED1055-1MM00-0BA2 stands out in the industrial automation market due to its specialized function of providing analog outputs within the user-friendly LOGO! ecosystem. This module directly addresses the need for fine-tuned control that basic digital I/O cannot achieve. It enhances the LOGO! system's capability, allowing it to interface with a wider range of sensors and actuators requiring analog signals. Its positioning is within the small and medium-sized automation sector, where cost-effectiveness, ease of use, and flexibility are paramount. The module’s ability to deliver both voltage (0-10V) and current (0/4-20mA) outputs makes it versatile for various signal types commonly found in industrial environments. This dual output capability reduces the need for multiple, specialized modules, offering a consolidated solution.

Key Application Scenarios

The Siemens 6ED1055-1MM00-0BA2 finds its primary utility in applications demanding precise analog signal output. This includes:

  Process Control: Regulating flow rates, pressures, and temperatures in manufacturing processes by providing variable control signals to valves, pumps, and heaters.  Motor Speed Control: Adjusting the speed of AC or DC motors through variable frequency drives (VFDs) or other motor control systems that accept analog input.  HVAC Systems: Managing building climate control by sending precise signals to actuators for dampers, variable speed fans, and heating/cooling coils.  Lighting Control: Implementing dimmable lighting systems in commercial or industrial spaces where analog signals are required to adjust light intensity.  Data Acquisition Systems: Acting as an interface to send processed data or control signals to external monitoring or logging equipment.

The module's integration into the LOGO! platform makes it an ideal choice for standalone machines, small control panels, and decentralized automation tasks where a full-scale PLC might be over-engineered.

Practical System Integration Guidance

Integrating the Siemens 6ED1055-1MM00-0BA2 into an existing LOGO! 8 system is straightforward, benefiting from the LOGO! platform's design for easy expansion. The module connects directly to the LOGO! base unit or other expansion modules via a bus connector, requiring no complex wiring to the base unit itself. The primary connection points are for the power supply (24V DC) and the wiring of the analog output signals.

When wiring, ensure the correct polarity for the 24V DC supply. For the analog outputs, users can select between 0-10V or 0/4-20mA signals based on the connected actuator or sensor requirements. It’s crucial to consult the LOGO! Soft Comfort software for configuring the analog output parameters within the program. This typically involves assigning the output to a specific memory address and setting the appropriate scaling for the desired output range. The module occupies two "4TE" (terminal width) units on a standard 35mm DIN rail, ensuring a compact installation footprint.

Operation and Risk Mitigation

Operating the Siemens 6ED1055-1MM00-0BA2 involves its functional integration within a LOGO! program. The module receives commands from the LOGO! base unit, which then translates these into analog output signals. The 0-10V output is suitable for controlling devices that accept a voltage input, while the 0/4-20mA output is ideal for applications requiring higher noise immunity or longer transmission distances.

To mitigate risks, always adhere to electrical safety standards during installation and maintenance. Ensure the power supply is disconnected before making any wiring changes. The module's IP20 rating means it must be installed in an enclosure to protect it from dust, moisture, and accidental contact. Proper grounding is essential to prevent electrical interference and ensure reliable operation. For troubleshooting, consult the LOGO! manual and error logs within the LOGO! Soft Comfort software. Common issues might involve incorrect wiring, improper program configuration, or external signal interference.

Scalability & Long-Term Value

The Siemens 6ED1055-1MM00-0BA2 offers significant scalability within the LOGO! 8 system. The LOGO! 8 platform itself can be expanded with multiple modules, allowing for an increase in digital and analog I/O points as project requirements grow. The 6ED1055-1MM00-0BA2 can be combined with other LOGO! expansion modules to reach a total of up to 24 digital inputs, 20 digital outputs, 8 analog inputs, and 8 analog outputs, demonstrating considerable flexibility for small to medium automation projects.

Its long-term value is further enhanced by its compatibility with the broader Siemens industrial automation portfolio and its support for future enhancements through software updates for the LOGO! platform. The module's robust design and Siemens' reputation for reliability ensure a long operational lifespan, making it a sound investment for evolving industrial needs. The integration capabilities also pave the way for future IIoT (Industrial Internet of Things) applications, enabling data exchange and remote monitoring when connected to networked LOGO! devices.

Frequently Asked Questions (FAQs)

Q1: What is the primary function of the Siemens 6ED1055-1MM00-0BA2?

The Siemens 6ED1055-1MM00-0BA2 is an analog output expansion module for the LOGO! 8 PLC system. It provides two channels capable of generating analog signals.

These signals can be configured as either 0-10V DC voltage outputs or 0/4-20mA current outputs. This allows for precise control of devices like variable speed drives or proportional valves.

Its main purpose is to extend the analog output capabilities of the LOGO! 8 base unit, enabling more sophisticated control applications.

Q2: What output types does the 6ED1055-1MM00-0BA2 support?

This module supports two distinct analog output types: 0-10V DC and 0/4-20mA. This flexibility is a key advantage.

The 0-10V output is commonly used for voltage-driven actuators and control systems. The 0/4-20mA output is preferred for its robustness against electrical noise and longer transmission distances.

Users can select the appropriate output type via the LOGO! Soft Comfort software during programming, adapting to specific actuator requirements.

Q3: Can I use the 6ED1055-1MM00-0BA2 with older LOGO! versions?

The 6ED1055-1MM00-0BA2 is specifically designed for the LOGO! 8 series. While Siemens often strives for backward compatibility, this particular module is optimized for LOGO! 8 and its associated software.

Older LOGO! versions may not have the necessary communication protocols or hardware interfaces to recognize and utilize this specific expansion module effectively. It is recommended to verify compatibility charts or user manuals for specific older LOGO! versions.

For optimal performance and guaranteed compatibility, it is best to pair the 6ED1055-1MM00-0BA2 with a LOGO! 8 base unit or later revisions.

Q4: What is the maximum number of 6ED1055-1MM00-0BA2 modules that can be connected to a LOGO! 8?

The LOGO! 8 system has a maximum expansion capability that includes analog output modules. The total number of expansion modules is limited by the base unit's capacity and the overall power budget.

According to Siemens specifications, a LOGO! 8 system can be expanded to include up to 8 analog outputs in total. This means you could potentially use up to four 6ED1055-1MM00-0BA2 modules if no other analog output modules are used.

Always refer to the specific LOGO! 8 base unit's technical data sheet and the LOGO! Soft Comfort software for exact limits on module expansion.

Q5: How is the Siemens 6ED1055-1MM00-0BA2 powered?

The Siemens 6ED1055-1MM00-0BA2 expansion module is powered by a 24 V DC supply voltage. This is a standard voltage commonly used in industrial automation.

This power is typically supplied from the same 24V DC power source that powers the LOGO! 8 base unit. The module draws power through its connection to the LOGO! system bus.

Ensure that the power supply is rated sufficiently to handle the LOGO! base unit and all connected expansion modules, including the 6ED1055-1MM00-0BA2.

Q6: What are the typical applications for this analog output module?

This module is ideal for applications requiring variable analog control signals. Examples include controlling motor speeds via VFDs.

It can also be used for precise positioning of control valves or managing proportional devices in process automation. HVAC systems frequently utilize such modules for regulating temperature or airflow.

Essentially, any system that needs to convert a digital command from the PLC into a continuously variable physical output can benefit from this module.

Q7: Does the 6ED1055-1MM00-0BA2 require separate programming software?

Yes, the 6ED1055-1MM00-0BA2 requires programming via the Siemens LOGO! Soft Comfort software. This is the dedicated software for configuring and programming LOGO! logic modules and their expansions.

Within LOGO! Soft Comfort, you can assign specific functions and output ranges to the analog outputs of the 6ED1055-1MM00-0BA2. This software allows for the creation of the control logic that dictates how the analog outputs behave.

The software provides a graphical interface for block programming, making it relatively easy to configure the module's parameters and integrate it into the overall system logic.

Q8: What are the dimensions and mounting requirements for this module?

The Siemens 6ED1055-1MM00-0BA2 has compact dimensions of approximately 90mm in height, 35.5mm in width, and 58mm in depth. It occupies two standard "4TE" slots on a 35mm DIN rail.

Mounting is done on a standard 35mm DIN rail, which is a common standard in industrial control cabinets. This allows for easy snap-on installation alongside other modules.

Its small footprint makes it suitable for space-constrained control cabinets, a common characteristic of LOGO! based systems.

Q9: What is the operating temperature range for the 6ED1055-1MM00-0BA2?

The Siemens 6ED1055-1MM00-0BA2 is designed to operate within a temperature range of 0°C to +55°C. This range is typical for industrial automation components.

Operating outside this specified temperature range can lead to unreliable performance, reduced lifespan, or even permanent damage to the module. It is crucial to ensure proper ventilation within the control cabinet.

Ensure the installation environment adheres to these specifications to guarantee optimal and consistent operation of the analog output module.

Q10: Is this module suitable for safety-related applications?

No, the Siemens 6ED1055-1MM00-0BA2 is not designed for safety-related applications. It is an auxiliary expansion module for standard control tasks.

Safety functions typically require specialized, certified safety components and logic controllers designed according to stringent safety standards like SIL (Safety Integrity Level). This module does not carry such certifications.

For safety-critical operations, always use dedicated safety PLCs or safety relays that are purpose-built and certified for those specific applications.