Siemens 6AV6446-1CA40-2BB5 MP 370

€ 2.495,00

SKU: 6AV6446-1CA40-2BB5 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1CA40-2BB5 is a Multi Panel (MP 370) belonging to the SIMATIC HMI Multi Panel series, designed for demanding visualization and operator control tasks in industrial automation environments. This panel features a 15-inch TFT display and is part of Siemens' high-performance HMI product line, offering robust operator interface capabilities for complex process visualization. The MP 370 series bridges the gap between standard operator panels and full PC-based systems, providing a reliable and dedicated HMI solution.

The 6AV6446-1CA40-2BB5 variant features a 15-inch TFT color display with a resolution of 1024 x 768 pixels (XGA), supporting up to 256 colors. It is equipped with a resistive touch screen as well as function keys for flexible operator input. The panel runs on the Windows CE operating system and supports WinCC flexible runtime software for project execution. Communication interfaces include MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling integration into a wide range of Siemens and third-party automation networks. The unit operates on a 24 V DC supply and includes a CompactFlash card slot for project storage and data logging.

The SIMATIC MP 370 is widely used in manufacturing, process industries, energy management, and machine building applications where large-format visualization and reliable operator interaction are required. Its 15-inch display makes it suitable for control panels and operator stations where detailed process graphics, trend displays, and alarm management are essential. Industries such as automotive, food and beverage, chemical processing, and water treatment commonly deploy this panel for supervisory control and local HMI functions.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Type	TFT color LCD
Display Colors	256 colors
Touch Technology	Resistive touchscreen
Input Voltage	24 V DC
Operating Voltage Range	19.2 – 28.8 V DC
Communication Interfaces	MPI, PROFIBUS DP, Ethernet (TCP/IP)
Operating System	Windows CE
Storage Medium	CompactFlash card slot
Operating Temperature	0 – 50 °C
Storage Temperature	-20 – 60 °C
Relative Humidity	10 – 90 % (non-condensing)
IP Protection Rating	IP65 (front), IP20 (rear)
Mounting	Panel mounting
Certifications	CE, UL, cULus

Common Error Codes & System Events

Event ID: 10000: Communication error between the HMI panel and the connected PLC or controller. The configured connection cannot be established or has been interrupted.
Check the communication cable and connector integrity. Verify MPI/PROFIBUS address settings and baud rate configuration in WinCC flexible. Ensure the PLC is powered and in RUN mode.
Event ID: 10001: Connection timeout to the configured PLC. The HMI panel did not receive a response from the controller within the expected time frame.
Check network cabling and termination resistors on PROFIBUS. Verify the PLC address matches the HMI project configuration. Restart both the HMI panel and the PLC if the issue persists.
Event ID: 20000: Project download error. The transfer of the WinCC flexible project to the HMI panel failed or was interrupted.
Verify the transfer cable connection and PC communication settings. Ensure the panel is in Transfer mode before initiating download. Check available storage space on the CompactFlash card.
Event ID: 40000: Tag read/write error. The HMI panel was unable to read from or write to a configured PLC tag or data area.
Verify the tag address and data type in the WinCC flexible project. Check that the PLC data block or memory area exists and is accessible. Confirm communication link is active.
Event ID: 50000: Alarm logging error. The panel encountered a problem writing alarm or event records to the configured storage location.
Check the CompactFlash card for available space and integrity. Verify alarm logging configuration in WinCC flexible. Replace the CompactFlash card if it is faulty or full.
Event ID: 70000: Recipe data error. A problem occurred during reading or writing of recipe data records.
Check recipe configuration in the WinCC flexible project. Verify storage medium availability and that the recipe data file is not corrupted. Re-transfer the project if the configuration is suspect.
System Error: Runtime: WinCC flexible runtime has encountered a critical error and terminated unexpectedly.
Restart the HMI panel. If the error recurs, re-transfer the WinCC flexible project to the panel. Check for project configuration errors such as invalid tag references or unsupported functions.

Frequently Asked Questions

What software is required to program the Siemens MP 370 (6AV6446-1CA40-2BB5)?

The MP 370 is programmed using Siemens WinCC flexible software. The project is created on a PC and transferred to the panel via MPI, PROFIBUS, or Ethernet connection, or via a CompactFlash card.

What communication protocols does the 6AV6446-1CA40-2BB5 support?

This panel supports MPI, PROFIBUS DP, and Ethernet (TCP/IP) communication interfaces, allowing connectivity to Siemens S7-300, S7-400, and other compatible controllers.

Is the MP 370 compatible with Siemens S7-1200 or S7-1500 PLCs?

The MP 370 can communicate with S7-1200 and S7-1500 PLCs via Ethernet using the appropriate WinCC flexible driver, though native integration is more optimized with S7-300 and S7-400 series controllers.

What is the input voltage requirement for the 6AV6446-1CA40-2BB5?

The panel requires a 24 V DC supply voltage with an operating range of 19.2 to 28.8 V DC. An external 24 V DC power supply must be provided.

What storage options are available on the MP 370?

The MP 370 features a CompactFlash card slot for project storage, data logging, alarm archiving, and recipe data. The CompactFlash card can also be used to transfer projects to the panel without a PC connection.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the panel power connector. Check that the voltage is within the 19.2 to 28.8 V DC operating range. Inspect the internal fuse if accessible.

Correct the supply voltage if out of range. Replace the power supply unit if it is not delivering stable 24 V DC. If the backlight is faulty, the display panel or backlight assembly may require replacement.

HMI panel does not communicate with the PLC

Verify the communication cable type and wiring for MPI or PROFIBUS connections. Check the bus address configured on the HMI matches the project settings. Use a bus diagnostic tool to check for PROFIBUS network errors.

Replace or reseat the communication cable. Correct the MPI or PROFIBUS address in the WinCC flexible project and re-transfer. Ensure PROFIBUS termination resistors are correctly placed at both ends of the network.

Touchscreen does not respond or responds inaccurately

Check for physical damage or contamination on the touchscreen surface. Attempt to recalibrate the touchscreen using the Windows CE control panel or the SIMATIC HMI panel calibration utility.

Clean the touchscreen surface with a soft, dry cloth. Perform a touchscreen recalibration via the panel's Start Center or control panel settings. If calibration fails repeatedly, the touchscreen overlay may need replacement.

Project fails to transfer to the panel

Confirm the panel is set to Transfer mode via the Start Center. Verify the PC communication settings match the panel interface (MPI address, baud rate, or Ethernet IP address). Check the CompactFlash card is properly inserted if using card transfer.

Set the correct transfer parameters in WinCC flexible matching the panel configuration. Restart both the PC and the panel before retrying. Replace the CompactFlash card if card-based transfer consistently fails.

Panel displays 'No project' or boots to Start Center unexpectedly

This typically indicates the project stored on the CompactFlash card is missing, corrupted, or the card has been removed. Check the CompactFlash card is seated correctly and recognized by the panel.

Re-insert the CompactFlash card and restart the panel. If the project is corrupted, re-transfer the WinCC flexible project from the engineering PC. Ensure the project is configured to start automatically on panel boot within WinCC flexible settings.

Condition	Repair, Used, Refurbished, New in box (sealed)