Technical Specifications

FAQ

1. What is 6AG1123-2MB03-2AX0 mainly used for in industrial automation?
6AG1123-2MB03-2AX0 is designed for operator control, machine monitoring, and process visualization in industrial automation systems. It can be connected to PLCs and other control devices to display process values, alarms, equipment status, and operating screens. Operators can use the touchscreen and configurable function keys to enter parameters, navigate between screens, acknowledge alarms, and perform predefined machine operations.

2. What communication interfaces and protocols are supported by 6AG1123-2MB03-2AX0?
6AG1123-2MB03-2AX0 provides an industrial Ethernet interface and supports PROFINET communication. It can therefore be integrated into Ethernet-based automation networks and used for data exchange with compatible PLCs and automation devices. Depending on the system configuration and engineering software, communication can also be implemented using protocols such as MODBUS TCP/IP and EtherNet/IP. The exact communication method should be selected according to the PLC, network architecture, and HMI project configuration.

3. Can the touchscreen and function keys of 6AG1123-2MB03-2AX0 be used together?
Yes. The unit combines a resistive touchscreen with 10 configurable function keys. The touchscreen can be used for screen navigation, parameter entry, process visualization, and interactive controls, while the physical function keys can be assigned to frequently used commands or machine functions. This combination is particularly useful in industrial environments where operators need both flexible graphical control and quick access to predefined functions.

4. What power supply is required for 6AG1123-2MB03-2AX0?
6AG1123-2MB03-2AX0 operates with a 24 V DC power supply and supports an input range of approximately 19.2 to 28.8 V DC. During installation, a stable industrial DC power source should be used, with sufficient capacity for the HMI and other connected equipment. Correct polarity, grounding, wiring quality, and protection against electrical interference should also be checked before powering the unit to prevent startup problems or unstable operation.

5. Which engineering software can be used to configure 6AG1123-2MB03-2AX0?
The HMI can be configured using the appropriate SIMATIC engineering environment, including WinCC Basic and compatible STEP 7 engineering software. The exact software version should be selected according to the HMI firmware, PLC configuration, and existing project version. When replacing an existing HMI, checking software and firmware compatibility before downloading the project is important because version mismatches can result in unsupported functions, project transfer errors, or communication problems.

6. What should be checked if 6AG1123-2MB03-2AX0 cannot communicate with the PLC?
First, check the physical Ethernet connection, including the network cable, connectors, network switch, and HMI power status. Next, verify the IP address, device name, communication interface, and PLC connection settings configured in the HMI project. The PLC and HMI must have compatible network parameters and communication settings. For PROFINET installations, the configured device name and network topology should also be checked. If the physical network is working correctly, review the HMI project and PLC configuration to determine whether the problem is caused by addressing, protocol settings, or the control program.

7. What should be done if the touchscreen of 6AG1123-2MB03-2AX0 is inaccurate or does not respond?
If touchscreen operation becomes inaccurate or certain areas do not respond, first inspect the screen for dust, oil, moisture, or other contamination and clean it using an appropriate method. Check whether the panel is exposed to abnormal mechanical pressure or environmental conditions. If supported by the system configuration, perform touchscreen calibration and test the entire operating area again. If a specific area remains consistently unresponsive after calibration and cleaning, further inspection of the touchscreen hardware may be required. Stable power and suitable operating conditions should also be verified.

8. What should be considered when using 6AG1123-2MB03-2AX0 as a replacement HMI?
Before replacement, verify the original HMI model, communication method, engineering software version, PLC connection, and project configuration. After installing 6AG1123-2MB03-2AX0, check the power wiring, Ethernet connection, network parameters, and device configuration. If the original HMI is still accessible, the existing project should be backed up before removal. After transferring the project to the replacement unit, test PLC communication, screen navigation, alarms, variables, function keys, parameter entry, and all critical operator functions. A complete functional test should be performed before returning the equipment to continuous production.