Siemens 6AV6446-7AA40-1BY4 SIMATIC MP 370

Name: Siemens 6AV6446-7AA40-1BY4 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-7AA40-1BY4
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6446-7AA40-1BY4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-7AA40-1BY4 is a Multi Panel (MP 370) belonging to the SIMATIC HMI family, designed for demanding machine-level and process visualization tasks. This unit features a 15-inch TFT display and is part of Siemens' high-performance operator panel series, offering robust graphical visualization capabilities for industrial environments. It is configured for use with WinCC flexible runtime software and integrates tightly within the Siemens automation ecosystem.

The MP 370 panel is equipped with a high-resolution color TFT display with touch and/or key operation depending on the variant, and supports multiple communication interfaces including MPI, PROFIBUS DP, and Ethernet. It runs on a Windows CE operating system and provides substantial onboard memory for project data, recipes, and data logs. The unit supports alarm management, trend displays, recipe handling, and user administration functions, making it suitable for complex HMI applications.

The SIMATIC MP 370 is widely deployed in manufacturing automation, machine tool control, packaging machinery, and process plant environments. Its compatibility with the full range of Siemens SIMATIC S7 PLCs and its support for WinCC flexible make it a reliable choice for system integrators and OEMs requiring a scalable, feature-rich operator interface. The panel's robust construction and wide operating temperature range suit it for use in industrial production facilities and harsh plant environments.

Technical Specifications

Display Size	15 inch
Display Type	TFT color
Display Resolution	1024 x 768 px (XGA)
Display Colors	64,000 colors
Touch Technology	Resistive touch screen
Operating Voltage	24 V DC
Power Consumption	Approx. 60 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (RJ45), RS-422/485
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, cULus
Series/Product Family	SIMATIC 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 lost.
Check MPI/PROFIBUS or Ethernet cabling and termination resistors. Verify PLC address settings match the HMI project configuration. Restart both PLC and HMI panel.
Event ID: 10001: Connection to PLC interrupted during runtime. The HMI panel has lost communication with the configured controller.
Inspect physical connections and cable integrity. Check that the PLC is in RUN mode. Verify baud rate and station address settings in the HMI project.
Event ID: 20000: Project download error. The transfer of the HMI project from the engineering PC to the panel has failed.
Ensure the panel is in Transfer mode. Verify the correct communication interface and transfer settings in WinCC flexible. Check that the PC and panel are connected with a suitable cable.
Event ID: 40000: System memory low. Available RAM or flash memory on the panel is insufficient for the loaded project or runtime data.
Reduce the project size, limit the number of stored data logs or recipe records, and delete unnecessary files from the panel memory. Consider archiving data to an external memory card.
Event ID: 50000: Tag read/write error. A configured variable (tag) could not be read from or written to the PLC.
Verify that the tag address in the HMI project matches the actual PLC data block or memory area. Check PLC program for address conflicts or access protection settings.
Event ID: 70000: Runtime software error or application crash. WinCC flexible runtime has encountered an unexpected error and may have terminated.
Restart the HMI panel. If the problem persists, reload the project via WinCC flexible. Check for software version compatibility between the runtime on the panel and the engineering software version used to create the project.
Event ID: 80000: Hardware fault detected. An internal hardware component of the panel has reported an error condition.
Perform a cold restart of the panel. If the fault persists after restart, the panel may require repair or replacement of the internal power supply or main board.

Frequently Asked Questions

Which PLC families is the SIMATIC MP 370 compatible with?

The MP 370 is compatible with the full SIMATIC S7 family including S7-200, S7-300, and S7-400 PLCs, as well as SIMATIC S5 controllers via appropriate drivers. Communication is supported over MPI, PROFIBUS DP, and Ethernet interfaces.

What software is required to configure and program the MP 370?

The MP 370 is configured using Siemens WinCC flexible engineering software. The panel runs WinCC flexible runtime on Windows CE. The engineering software version must be compatible with the runtime version installed on the panel.

What is the input voltage for the 6AV6446-7AA40-1BY4?

The panel operates on 24 V DC supply voltage. Ensure the power supply is adequately rated for the panel's power consumption of approximately 60 W.

Can the MP 370 be connected via Ethernet to a SCADA system?

Yes, the MP 370 supports Ethernet connectivity and can communicate with SCADA systems or higher-level systems using supported protocols. It can also be integrated into a network for remote monitoring and data exchange.

What memory expansion options are available for the MP 370?

The MP 370 supports external memory cards (CompactFlash) for project storage, data logging, and recipe data archiving, allowing expansion beyond the internal flash memory capacity.

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.

Restore correct 24 V DC supply. If voltage is correct and display remains blank, the backlight inverter or internal power supply board may have failed and the unit will require repair or component replacement.

Panel does not communicate with the PLC

Verify the physical connection cable (MPI, PROFIBUS, or Ethernet). Check that the station address and baud rate configured in the HMI project match the PLC settings. Use a bus diagnostic tool to check for bus errors.

Replace or reseat the communication cable. Correct address and baud rate mismatches in WinCC flexible and reload the project. Ensure termination resistors are correctly placed on the PROFIBUS or MPI network.

Touch screen does not respond or responds inaccurately

Check whether the touch screen responds at all or only in certain areas. A completely unresponsive screen may indicate a hardware fault, while inaccurate response typically indicates calibration drift.

Perform a touch screen recalibration via the panel's Start Center or Control Panel settings. If recalibration does not resolve the issue, the touch screen overlay may be damaged and require replacement.

Project transfer from PC to panel fails

Confirm the panel is set to Transfer mode. Check the transfer cable and selected interface in WinCC flexible transfer settings. Verify that firewall or antivirus software is not blocking the connection on the PC.

Set the panel to Transfer mode via the Start Center. Use the correct transfer cable and matching interface settings. Temporarily disable PC firewall during transfer if necessary, and ensure WinCC flexible runtime version on the panel matches the project version.

Panel reboots repeatedly or freezes during runtime

Check for low memory conditions, corrupted project files, or incompatible runtime software versions. Review the system event log on the panel for recorded fault events prior to the reboot.

Reload a freshly compiled project from WinCC flexible. Ensure the runtime version on the panel is compatible with the engineering software version. If the problem persists, perform a factory reset and reload the project, or send the unit for hardware diagnostics.

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