Product Overview

The Siemens 6AV2124-0MC01-0AX0 is a SIMATIC HMI TP1200 Comfort Panel used for operator control, process visualization, and machine monitoring in industrial automation systems. Its 12.1-inch widescreen TFT touchscreen provides space for displaying process values, equipment graphics, alarm messages, and operating controls within a single interface.

The TP1200 Comfort belongs to Siemens’ Comfort Panel family and supports visualization tasks that require more screen area than smaller operator terminals. Its 1280 × 800 pixel resolution and 16-million-color display allow machine builders to arrange production data, operating states, trends, and diagnostic information in a structured layout. Touch operation lets operators navigate screens, select functions, and enter permitted values directly.

The panel supports both PROFINET and MPI/PROFIBUS DP communication. This makes it suitable for compatible Siemens automation architectures using industrial Ethernet or established fieldbus networks. Its 12 MB configuration memory stores the HMI project, while Windows CE 6.0 provides the embedded operating environment. Configuration is supported through WinCC Comfort V11 or compatible later engineering software.

In a production facility, the TP1200 Comfort can serve as the main operator interface for a packaging line, process skid, or material-handling system. Operators can switch between machine overview screens, inspect alarms, review operating parameters, and access maintenance information. The actual control of motors, valves, and other equipment remains the responsibility of the PLC and associated control hardware.

The combination of a larger touchscreen and multiple communication options is useful where the HMI must present several related process variables without forcing operators to navigate through too many separate screens. For example, a pumping-system overview can combine pump status, pressure readings, tank levels, and alarm indicators, while individual screens provide access to detailed equipment information.

The 6AV2124-0MC01-0AX0 is therefore suited to applications requiring a dedicated local visualization interface with extensive screen organization and integration into a compatible Siemens control architecture.

Technical Specifications

Product Features

• 12.1-inch widescreen display: Provides a broad visualization area for process values, equipment graphics, alarms, and operator controls.
• 1280 × 800 resolution: Supports detailed screen layouts for monitoring multiple machine functions.
• 16-million-color display: Helps distinguish normal operation, warnings, alarms, and different equipment states.
• Analog-resistive touchscreen: Supports direct interaction with configured buttons, input fields, and navigation elements.
• PROFINET communication: Connects the panel to compatible PLCs and industrial Ethernet networks.
• MPI/PROFIBUS DP interface: Supports integration with compatible Siemens fieldbus architectures.
• 12 MB configuration memory: Provides storage for the configured HMI project.
• USB connectivity: Supports compatible service and project-transfer operations.
• WinCC Comfort engineering: Allows developers to configure screens, tags, alarms, recipes, and operator functions.
• Alarm visualization: Presents configured faults and warnings to assist operators with troubleshooting.
• Recipe handling: Supports recipe-related functions within compatible HMI projects.
• Process visualization: Allows the use of numerical values, graphical indicators, trends, and equipment-related screen objects.
• Controller integration: Supports communication with compatible Siemens and third-party automation systems through available drivers and protocols.

Working Principle

The TP1200 Comfort functions as the visualization and operator-interaction layer of a PLC-based automation system. It receives process information from the controller, displays the information defined in the HMI project, and communicates configured operator actions back to the control system.

Field Instruments → PLC → PROFINET or MPI/PROFIBUS DP → TP1200 Comfort → Operator

During engineering, the machine builder creates an HMI project using compatible WinCC Comfort software. Screen objects such as process indicators, numerical displays, buttons, input fields, and alarm views are linked to controller variables or HMI functions.

When the machine operates, the panel reads the configured process values and updates the display. A production-line overview, for example, may show the operating states of several conveyor sections, current production counts, motor status, and active faults. Operators can then navigate to an individual equipment screen for more detailed information.

When an operator touches a configured button or changes an authorized parameter, the panel sends the corresponding action through the established communication connection. The PLC evaluates the request against the machine program, operating mode, and interlocks before executing any action that affects the equipment.

Alarm handling provides another important function. The HMI can display configured fault messages and give operators access to related diagnostic screens. This helps maintenance personnel identify which part of a machine requires attention and distinguish an alarm condition from normal operation.

Reliable operation depends on the complete communication and data-mapping configuration. Device addresses, controller connections, HMI tags, data types, and scaling must agree with the PLC project. During commissioning, engineers should compare displayed values with controller data and test operator commands under controlled conditions.

Role in a Siemens SIMATIC HMI Control Architecture

The TP1200 Comfort occupies the operator-interface layer between production personnel and the automation system. It presents process information from the PLC and provides the controls through which authorized operator actions are communicated to the controller.

Field Sensors and Actuators → SIMATIC PLC → Industrial Communication Network → TP1200 Comfort Panel → Operator

The PLC remains responsible for executing the machine-control program. The HMI provides visualization and operator interaction, while safety-related functions must be implemented in the appropriate safety system rather than relying solely on standard HMI commands.

Industrial Applications

Installation and Maintenance

1. Confirm the panel model: Verify that 6AV2124-0MC01-0AX0 matches the intended TP1200 Comfort application and communication requirements.
2. Prepare the mounting location: Check the panel cutout, mounting arrangement, and enclosure conditions against the installation requirements.
3. Check the DC supply: Provide a suitable 24 V DC supply within the specified operating range and verify polarity before energizing the panel.
4. Plan the communication connection: Select PROFINET or MPI/PROFIBUS DP according to the controller and network architecture.
5. Configure device communication: Set the required device addresses, network parameters, and controller connection settings within the HMI project.
6. Develop the HMI screens: Configure process displays, navigation controls, alarm views, input fields, and other required operator functions using compatible WinCC Comfort software.
7. Map controller variables: Link screen objects to the correct PLC tags and verify data types, addresses, and scaling.
8. Configure operator permissions: Define permitted actions and access levels where the machine application requires controlled access to settings or commands.
9. Test touchscreen operation: Check screen navigation, buttons, input fields, and other configured touch objects.
10. Verify data exchange: Confirm that process values update correctly and that communication interruptions can be identified during testing.
11. Test operator commands: Check each command against the intended PLC logic, interlocks, and machine operating conditions before production use.
12. Maintain project records: Archive the approved HMI project, communication settings, software version, and commissioning results for future maintenance.

Related Components

Recommended Related Models

Key Advantages

• Provides a 12.1-inch color touchscreen for machine visualization and operator interaction.
• Supports PROFINET and MPI/PROFIBUS DP communication.
• Integrates with Siemens WinCC Comfort engineering software.
• Supports configured alarms, recipes, process values, and diagnostic screens.
• Can communicate with compatible Siemens and third-party automation systems through supported protocols.
• Provides a dedicated operator interface while leaving control execution to the PLC.

Technical FAQs

How does the TP1200 Comfort differ from the TP900 Comfort?

The TP1200 Comfort uses a 12.1-inch display with 1280 × 800 resolution, while the TP900 Comfort uses a smaller 9-inch display with 800 × 480 resolution. The larger display gives machine builders more room for process graphics, operating controls, and diagnostic information.

Which communication options are available on the 6AV2124-0MC01-0AX0?

The panel supports PROFINET and MPI/PROFIBUS DP communication. The correct connection depends on the controller, network design, and available interfaces. Device addressing and HMI communication settings must be configured for the selected connection.

Can the panel display process trends and alarm histories?

Yes. Compatible HMI projects can include configured trends, alarm views, and related diagnostic screens. The information available depends on the HMI configuration, controller data, and the functions used in the project.

What should be checked if process values are incorrect on the HMI?

Check the source values in the PLC, HMI tag mapping, data types, scaling, and communication status. If the controller data is correct but the displayed value is not, investigate the HMI tag configuration and any conversion applied to the display object.