Siemens 6AV6446-1BA41-1BA3 SIMATIC MP 370

Name: Siemens 6AV6446-1BA41-1BA3 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1BA41-1BA3
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6446-1BA41-1BA3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1BA41-1BA3 is a Multi Panel (MP 370) belonging to the SIMATIC HMI family, designed for demanding machine-level and process visualization tasks. This panel features a 12-inch TFT display and is part of Siemens' high-performance operator panel series, offering robust human-machine interface capabilities for industrial environments. The MP 370 series bridges the gap between compact operator panels and full PC-based systems, providing a powerful standalone HMI solution.

The 6AV6446-1BA41-1BA3 is equipped with a 12" TFT color display with a resolution of 800 x 600 pixels (SVGA), supporting up to 256 colors. It features a touch-sensitive screen interface and includes communication interfaces such as MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling seamless integration with Siemens S7 PLCs and third-party controllers. The panel runs WinCC flexible runtime software and provides sufficient onboard memory for complex visualization projects, including trend displays, alarm management, and recipe handling.

The SIMATIC MP 370 is widely deployed in manufacturing automation, machine building, and process industries including automotive, food and beverage, packaging, and chemical processing. Its combination of a large color display, multiple communication interfaces, and compatibility with the SIMATIC controller ecosystem makes it suitable for applications requiring detailed process visualization, operator input, and data logging at the machine or line level.

Technical Specifications

Display Size	12 inch
Display Resolution	800 x 600 pixels (SVGA)
Display Type	TFT color LCD
Display Colors	256 colors
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Max. 30 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
Operating System	Windows CE
Runtime Software	WinCC flexible Runtime
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
IP Rating (Rear)	IP20
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 controller.
Check the communication cable connections and verify the MPI/PROFIBUS address settings. Ensure the PLC is in RUN mode and the communication parameters in the WinCC flexible project match the controller configuration.
Event ID: 10001: Connection to the PLC was interrupted during runtime operation.
Verify physical cable integrity and connector seating. Check for address conflicts on the MPI or PROFIBUS network. Restart the HMI and PLC if the connection is not re-established automatically.
Event ID: 20000: Project download error — the project could not be transferred to the panel.
Ensure the correct transfer cable or Ethernet connection is used. Verify that the panel is in Transfer mode and that the WinCC flexible project is compiled without errors before attempting the download.
Event ID: 40000: System memory low — available runtime memory is insufficient for the current project.
Reduce the project size by optimizing graphics, limiting the number of active screens, or reducing log data. Consider archiving historical data to an external storage device.
Event ID: 50000: Internal device error or hardware fault detected during self-test.
Perform a panel restart. If the error persists, back up the project, perform a factory reset, and reload the project. If the fault continues, the panel may require hardware repair or replacement.
Event ID: 60000: Tag update error — one or more process tags could not be updated from the PLC.
Check the tag configuration in the WinCC flexible project for correct PLC addresses and data types. Verify that the PLC program contains the expected data blocks and variables.
Event ID: 70000: Alarm logging error — alarm events could not be written to the configured storage location.
Check the storage medium (internal memory or external device) for available space and correct configuration. Verify the alarm logging settings in the WinCC flexible project.

Frequently Asked Questions

Which PLC families are compatible with the SIMATIC MP 370 (6AV6446-1BA41-1BA3)?

The MP 370 is compatible with Siemens SIMATIC S7-200, S7-300, S7-400, and S7-1200 controllers via MPI or PROFIBUS DP interfaces. Ethernet-based communication with S7 controllers is also supported using the integrated Ethernet port.

What software is used to configure and program the MP 370 panel?

The MP 370 is configured using Siemens WinCC flexible engineering software. The compiled project is transferred to the panel via Ethernet, MPI, or a USB/serial connection.

What is the input voltage requirement for this panel?

The 6AV6446-1BA41-1BA3 requires a 24 V DC power supply. Ensure the power source is within the specified tolerance range to prevent damage or unstable operation.

Can the MP 370 display be used as a touch-only interface or does it support function keys?

The 6AV6446-1BA41-1BA3 variant is a touch-only panel without dedicated hardware function keys. Operator input is performed exclusively through the resistive touch screen.

What is the front panel protection rating of the MP 370?

The front panel of the MP 370 is rated IP65, making it suitable for installation in environments where dust and water jets may be present. The rear of the unit is rated IP20.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the panel power connector. Check that the voltage is within the specified tolerance. Inspect the internal fuse if accessible.

Correct the power supply voltage if out of range. Replace a blown fuse with the correct rating. If the backlight has failed, the panel may require backlight or display assembly replacement.

Touch screen does not respond or responds inaccurately to input

Check whether the touch screen is physically damaged or contaminated. Attempt to recalibrate the touch screen through the panel's Start Center or service menu.

Clean the touch screen surface with a soft, dry cloth. Perform a touch screen recalibration via the Start Center settings. If calibration does not resolve the issue, the touch screen overlay may need to be replaced.

HMI cannot establish communication with the PLC

Verify the physical connection of the MPI, PROFIBUS, or Ethernet cable. Check the communication settings in the WinCC flexible project, including PLC address, baud rate, and network parameters.

Correct any mismatched communication parameters in the project configuration and reload the project. Replace the communication cable if damaged. Ensure no address conflicts exist on the network.

Panel repeatedly restarts or crashes during runtime

Check for project errors or memory overload by reviewing the panel's diagnostic buffer. Verify that the WinCC flexible runtime version is compatible with the project version.

Optimize the project to reduce memory usage. Update or reinstall the WinCC flexible runtime software on the panel. If hardware instability is suspected, perform a factory reset and reload the project.

Project transfer to the panel fails or times out

Confirm the panel is set to Transfer mode via the Start Center. Verify the transfer connection type (Ethernet, MPI, or serial) and that the correct interface is selected in WinCC flexible.

Switch the panel to Transfer mode manually if it did not enter automatically. Check and correct the transfer settings in WinCC flexible. Replace the transfer cable or verify the Ethernet network path if the connection cannot be established.

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