Technical Specifications

FAQ

1. What is the Siemens 6AG1124-0QC02-4AX1 Operator Interface used for?
   The Siemens 6AG1124-0QC02-4AX1 is a SIPLUS TP1500 Comfort HMI designed for operator control and industrial process visualization. It can display process values, machine status, alarms, trends and operating information while allowing operators to enter parameters and control configured machine functions. Typical applications include PLC-based production equipment, process automation systems, machine control panels and industrial monitoring stations.
2. What type of display and touchscreen does the 6AG1124-0QC02-4AX1 use?
   This model uses a widescreen TFT display with a 15-inch class screen, 1280 × 800 pixel resolution and approximately 16.77 million colors. The operator interface uses analog-resistive touch technology. This allows the HMI project to provide touch buttons, numeric input fields, alarm controls and other interactive objects. The panel also supports 40 direct touch keys that can be configured as S7 input/output functions where required by the application.
3. Which communication interfaces are available on the 6AG1124-0QC02-4AX1?
   The HMI provides PROFINET connectivity and an MPI/PROFIBUS DP interface for integration with industrial automation networks. The Ethernet architecture includes two industrial Ethernet ports, making it possible to connect the panel within a suitable PROFINET network topology. Communication configuration must match the PLC or controller project, including network parameters, device configuration and the selected communication protocol.
4. What power supply does the Siemens 6AG1124-0QC02-4AX1 require?
   The Operator Interface operates from a 24 V DC supply, with an allowable supply range of approximately 19.2 to 28.8 V DC. Typical active power consumption is around 41 W. During installation, the power supply should be capable of maintaining stable voltage under normal operating conditions. If the HMI repeatedly restarts, loses communication or shuts down unexpectedly, the DC supply and wiring should be checked before investigating software or network problems.
5. Is the 6AG1124-0QC02-4AX1 suitable for harsh industrial environments?
   Yes. This model is part of the SIPLUS product family and uses a conformal-coated design intended to provide enhanced environmental resistance compared with standard HMI equipment. The specified operating temperature range is 0–50°C. The front panel has IP65 protection, while the rear section is IP20. Proper cabinet installation, sealing and ventilation are still required to maintain reliable operation under the actual site conditions.
6. How is the 6AG1124-0QC02-4AX1 configured and programmed?
   The TP1500 Comfort can be configured using Siemens WinCC Comfort engineering software. The specified product supports configuration from WinCC Comfort V14 SP1 with the appropriate hardware support package. During configuration, engineers can create process screens, alarms, trends, user management, recipes, input fields and communication connections. After configuration, the project is transferred to the HMI and the communication with the PLC or other automation devices is verified during commissioning.
7. How should a communication fault on the 6AG1124-0QC02-4AX1 be diagnosed?
   Start by checking the 24 V DC power supply and confirming that the HMI is operating normally. Next, inspect Ethernet cables, connectors, network switches and communication indicators. For PROFINET applications, verify the IP address, device name, network configuration and PLC project settings. If the physical network is functioning but process values remain unchanged, check the HMI connection configuration, tag addresses and PLC communication status. For PROFIBUS or MPI systems, the corresponding bus parameters and station configuration should also be verified.
8. What should be checked when replacing an existing 6AG1124-0QC02-4AX1 Operator Interface?
   Before replacement, back up the HMI project and record the existing network settings, PLC connections and user configuration. After installing the replacement panel, verify the 24 V DC supply, communication interfaces and network parameters before downloading the correct HMI project. Functional testing should include screen operation, PLC communication, process values, alarms, trends, parameter entry, user permissions and control functions. If the HMI is part of a production machine, replacement and commissioning should be performed with the machine in a safe operating state.