Siemens 6AV6446-3BA40-2BY4 MP 370

€ 2.495,00

SKU: 6AV6446-3BA40-2BY4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-3BA40-2BY4 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 operates as a high-performance HMI device within the Siemens SIMATIC product family. It is engineered to provide reliable human-machine interface functionality in process and machine control applications.

The MP 370 (6AV6446-3BA40-2BY4) is equipped with a 15" TFT color display with a resolution of 1024 x 768 pixels (XGA), supporting 65,536 colors for clear visualization of process data. The panel supports touch screen operation and includes a range of communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling flexible integration into existing automation networks. It runs on WinCC flexible runtime software and provides substantial onboard memory for project data, trend displays, alarm management, and recipe handling. The unit operates on a 24 V DC supply and is built to IEC 61131 standards for industrial environments.

The SIMATIC MP 370 is widely deployed in manufacturing, automotive, chemical processing, water treatment, and energy industries where a large-format, high-resolution HMI panel is required. Its compatibility with Siemens S7-300, S7-400, and S7-1500 PLCs makes it a versatile choice for complex machine visualization and SCADA-level operator stations. The panel's robust construction and wide operating temperature range make it suitable for installation in control cabinets and operator panels in harsh industrial settings.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Colors	65,536 colors
Display Type	TFT color LCD
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 50 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
Operating System	Windows CE
Runtime Software	WinCC flexible
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
Series/Product Family	SIMATIC HMI Multi Panel (MP 370)

Common Error Codes & System Events

Event ID: 10000: Communication error between HMI panel and PLC. The configured connection to the controller cannot be established or has been interrupted.
Check MPI/PROFIBUS/Ethernet cable connections and termination resistors. Verify PLC address settings match the HMI project configuration. Restart both the HMI panel and PLC if necessary.
Event ID: 10001: Connection to PLC lost during runtime. The HMI panel was previously connected but communication has dropped.
Inspect physical cabling and connectors. Check PLC program is running and not in STOP mode. Verify network parameters and baud rate settings in WinCC flexible project.
Event ID: 20000: Tag read error. The HMI panel is unable to read the value of a configured tag from the PLC.
Verify the tag address exists in the PLC program and the data block is not write-protected. Check that the PLC is in RUN mode and the communication connection is active.
Event ID: 20001: Tag write error. The HMI panel failed to write a value to the configured PLC tag.
Check that the target PLC data area is not read-only. Confirm the operator has the required authorization level. Verify the PLC is in RUN mode and the connection is active.
Event ID: 40000: Project loading error. The runtime project could not be loaded from internal memory or external storage.
Transfer the project again using WinCC flexible. Check the integrity of the project file. Ensure sufficient free memory is available on the panel.
Event ID: 50000: System memory low. Available RAM or flash memory on the HMI panel is critically low.
Delete unused project files, log files, and recipe data from the panel memory. Consider archiving historical data to an external storage device.
Event ID: 60000: Backup battery low or missing. The internal backup battery voltage is below the required threshold.
Replace the internal backup battery with the correct Siemens replacement battery. Refer to the device manual for battery replacement procedure to avoid data loss.
Event ID: 70000: Screen saver or display fault. The display backlight has failed or the screen saver has activated unexpectedly.
Check display backlight settings in the panel configuration. If the backlight has failed, the display unit or backlight inverter may require replacement.

Frequently Asked Questions

What PLC systems are compatible with the Siemens MP 370 (6AV6446-3BA40-2BY4)?

The MP 370 is compatible with Siemens SIMATIC S7-300, S7-400, S7-1500, and S5 PLCs via MPI, PROFIBUS DP, or Ethernet interfaces. It can also communicate with third-party controllers via serial protocols supported in WinCC flexible.

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

The MP 370 is configured using Siemens WinCC flexible engineering software. Projects are created on a PC and then transferred to the panel via Ethernet, USB, or MPI/PROFIBUS connection.

What is the supply voltage for the 6AV6446-3BA40-2BY4?

The panel operates on a 24 V DC power supply. Ensure the power source is within the specified tolerance range as defined in the device manual.

Does the MP 370 support recipe management and data logging?

Yes, the MP 370 supports recipe management, alarm logging, trend displays, and data archiving as part of the WinCC flexible runtime environment. Data can be stored internally or on external media.

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

The front panel of the MP 370 achieves IP65 protection, 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 on

Check that 24 V DC is present at the power supply terminals. Measure voltage at the panel connector. Inspect the internal fuse if accessible. Determine whether the panel emits any startup sounds or LED indicators.

Verify and restore the 24 V DC supply. If power is confirmed but the display remains blank, the backlight inverter or display unit may have failed and requires replacement. A full panel repair or display module swap may be necessary.

HMI panel fails to communicate with the PLC

Check the physical connection cable (MPI, PROFIBUS, or Ethernet). Verify the PLC address and baud rate settings in the WinCC flexible project match the PLC configuration. Confirm the PLC is in RUN mode.

Replace or reseat the communication cable. Correct any address or baud rate mismatches in the project settings and retransfer the project. If using PROFIBUS, check bus termination at both ends of the network.

Touchscreen does not respond or responds inaccurately

Determine whether the touch is completely unresponsive or just misaligned. Access the panel's control panel via a USB mouse if available. Check for physical damage or contamination on the touch surface.

Perform a touchscreen recalibration through the panel's system settings. If recalibration does not resolve the issue, the resistive touch overlay may be damaged and requires replacement.

Panel repeatedly restarts or crashes during runtime

Check for overheating by verifying ambient temperature and ventilation around the panel. Review the system event log for error codes. Check the project for memory overflows or misconfigured tags.

Ensure the operating environment is within the 0 to 50 °C range and that ventilation slots are not blocked. Optimize the WinCC flexible project to reduce memory usage. If hardware faults are suspected, a full diagnostic and repair is recommended.

Project transfer from PC to panel fails

Verify the communication connection between the PC and panel (Ethernet or USB). Check that WinCC flexible version is compatible with the panel firmware version. Confirm the panel is in transfer mode.

Set the panel to transfer mode via the Start Center. Ensure the PC firewall is not blocking the transfer. Update the panel firmware if there is a version mismatch, and retry the project transfer using WinCC flexible.

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