Siemens 6AV6446-7AA40-1BY3 SIMATIC MP 370

Name: Siemens 6AV6446-7AA40-1BY3 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-7AA40-1BY3
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6446-7AA40-1BY3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-7AA40-1BY3 is a Multi Panel (MP 370) belonging to the SIMATIC HMI family, designed for demanding visualization and operator control tasks in industrial automation environments. This 15-inch touch-screen panel operates as a high-performance HMI device capable of running WinCC flexible runtime software, providing a robust platform for process visualization and machine control. It is part of Siemens' SIMATIC HMI panel range, which is widely deployed across manufacturing and process industries.

The MP 370 (6AV6446-7AA40-1BY3) features a 15-inch TFT color display with a resolution of 1024 x 768 pixels (XGA) and supports touch-screen input. It is equipped with multiple communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling integration into a wide range of Siemens and third-party control architectures. The panel runs on a Windows CE operating system and provides sufficient onboard memory for complex visualization projects, with support for external storage via CompactFlash and USB ports. It carries relevant industrial certifications including CE and UL, and is rated for continuous operation in industrial environments.

The SIMATIC MP 370 is typically deployed in machine tool control, automotive assembly lines, chemical processing plants, and water treatment facilities where a large, high-resolution display is required for complex process visualization. Its compatibility with SIMATIC S7-300 and S7-400 PLCs via MPI and PROFIBUS DP makes it a natural fit for existing Siemens automation architectures. The panel's robust construction and wide operating temperature range make it suitable for installation in control cabinets in harsh industrial settings.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Type	TFT Color LCD
Display Colors	64,000 colors
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Max. 60 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
USB Ports	2 x USB (Type A)
Memory Card	CompactFlash slot
Operating System	Windows CE
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
IP Rating (Front)	IP65
Mounting	Panel mounting
Certifications	CE, UL, cUL
Series/Product Family	SIMATIC HMI Multi Panel MP 370

Common Error Codes and System Events

Event ID: 10000: Communication error between HMI panel and PLC. The configured connection to the controller cannot be established or has been lost.
Check MPI/PROFIBUS DP or Ethernet cable connections and termination resistors. Verify PLC address settings match the HMI project configuration. Restart both devices if necessary.
Event ID: 10001: Connection to PLC interrupted during runtime. The HMI panel lost communication with the configured controller.
Inspect physical wiring and connectors. Verify network addresses and baud rate settings. Check for electromagnetic interference on the communication cable.
Event ID: 40000: Project download error. The project file could not be transferred to the panel successfully.
Ensure the correct transfer cable or Ethernet connection is used. Verify that the WinCC flexible version matches the panel firmware. Check available memory on the panel before re-attempting the download.
Event ID: 20000: Tag read/write error. A configured tag could not be read from or written to the PLC.
Verify the tag address in the HMI project matches the actual PLC memory address. Check PLC program for address conflicts. Confirm the PLC is in RUN mode.
Event ID: 50000: System memory low. The panel's available runtime memory is critically low.
Reduce the number of active screens or objects loaded simultaneously. Archive or delete unnecessary log files and alarm records. Consider optimizing the project structure in WinCC flexible.
Event ID: 70000: Firmware update error. The firmware update process was interrupted or failed.
Re-initiate the firmware update using the correct ProSave or WinCC flexible tool version. Ensure stable power supply during the update process. Do not interrupt the update once started.
Event ID: 30000: Recipe data error. Recipe records could not be read from or written to the configured storage location.
Check the recipe configuration in WinCC flexible. Verify that the CompactFlash card or USB storage device is properly inserted and not write-protected. Reformat storage media if corruption is suspected.

Frequently Asked Questions

Which communication interfaces are available on the 6AV6446-7AA40-1BY3?

The MP 370 15-inch touch panel provides MPI, PROFIBUS DP (via RS-485), Ethernet (TCP/IP via RJ45), and RS-422/RS-485 serial interfaces, as well as two USB ports for peripheral devices and data transfer.

Which software is used to configure and program this HMI panel?

The 6AV6446-7AA40-1BY3 is configured using Siemens WinCC flexible engineering software. The panel runs WinCC flexible runtime on a Windows CE operating system.

Is this panel compatible with SIMATIC S7-300 and S7-400 PLCs?

Yes, the MP 370 supports direct connection to SIMATIC S7-300 and S7-400 PLCs via MPI or PROFIBUS DP, and can also communicate over Ethernet with compatible controllers.

What is the display resolution and size of this panel?

The panel features a 15-inch TFT color display with a resolution of 1024 x 768 pixels (XGA) and supports 64,000 colors.

How is the panel mounted and what is its front-face protection rating?

The MP 370 is designed for panel mounting in a control cabinet cutout and carries an IP65 protection rating on the front face, making it suitable for environments where dust and water spray may be present.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the panel's power connector. Check that the supply is within the specified tolerance and that the connector is firmly seated.

Correct any undervoltage condition at the power supply. If voltage is correct and the display remains blank, the internal backlight or power supply board may be faulty and require replacement.

Touch screen does not respond or registers incorrect touch positions

Check whether the touch screen is physically damaged or contaminated. Attempt to recalibrate the touch screen via the panel's Start Center or Control Panel in Windows CE.

Clean the touch screen surface with a soft, dry cloth. Perform a touch screen recalibration through the Windows CE Control Panel. If the issue persists, the touch screen overlay may need to be replaced.

HMI panel cannot establish communication with the PLC

Verify the MPI or PROFIBUS DP address settings on both the panel and the PLC. Check the cable wiring, bus termination resistors, and connector integrity. Confirm the baud rate settings match on both devices.

Correct any address or baud rate mismatches in the WinCC flexible project and PLC configuration. Replace damaged cables or connectors. Ensure bus termination is correctly applied at both ends of the network segment.

Project download from engineering PC fails or times out

Check the transfer connection type (Ethernet, USB, or MPI) and verify the panel is in Transfer mode. Confirm the WinCC flexible software version is compatible with the panel firmware version.

Set the panel to Transfer mode via the Start Center. Update panel firmware using ProSave if a version mismatch exists. Use a direct Ethernet or USB connection to rule out network issues during transfer.

Panel reboots unexpectedly or freezes during operation

Check the 24 V DC power supply for voltage dips or instability under load. Review the alarm and event logs on the panel for system error events. Check for overheating by verifying ambient temperature and cabinet ventilation.

Stabilize the power supply and ensure it is adequately rated for the panel's power consumption. Improve cabinet ventilation if operating temperature is exceeded. If the issue persists, back up the project and perform a factory reset, then reload the project.

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