Siemens 6AV6343-3AA24-0MA6 OP270

€ 1.995,00

SKU: 6AV6343-3AA24-0MA6 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6343-3AA24-0MA6 is an Operator Panel (OP) belonging to the SIMATIC HMI OP270 series, manufactured by Siemens. This unit is a key-operated panel HMI device designed for machine-level visualization and operator control in industrial automation environments. It features a monochrome display and is part of the broader SIMATIC HMI family, which integrates seamlessly with Siemens SIMATIC PLCs and automation systems.

The OP270 6AV6343-3AA24-0MA6 is equipped with a 10-inch STN monochrome LCD display and a membrane keypad for operator input, eliminating the need for a touchscreen interface. It supports communication via MPI, PROFIBUS DP, and serial interfaces, enabling flexible integration into existing Siemens automation networks. The panel runs on WinCC flexible runtime software and provides sufficient onboard memory for storing project data, recipes, and alarm logs. It operates on a 24 V DC supply and is rated to IP65 at the front panel, making it suitable for installation in control cabinet doors.

The OP270 is widely deployed in manufacturing, automotive, food and beverage, and process industries where robust, key-operated HMI panels are preferred over touchscreen alternatives. Its compatibility with SIMATIC S7-300 and S7-400 PLCs makes it a standard choice for machine builders and system integrators working within the Siemens ecosystem. The panel is particularly suited for applications requiring reliable operator interaction in environments with dust, moisture, or vibration.

Technical Specifications

Display Size	10 inch
Display Type	STN monochrome LCD
Display Colors	Monochrome (blue/white)
Input Method	Membrane keypad
Input/Operating Voltage	24 V DC
Power Consumption	Max. 20 W
Communication Interface	MPI, PROFIBUS DP, RS-422/485 (serial)
IP Protection Rating (Front)	IP65
IP Protection Rating (Rear)	IP20
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
Mounting	Panel mounting
Certifications	CE, UL, cULus
Series/Product Family	SIMATIC HMI OP270

Common Error Codes & System Events

Event ID: 10000: Connection to PLC lost or communication timeout detected between the OP270 and the configured controller.
Check MPI or PROFIBUS DP cable connections and termination resistors. Verify PLC is powered and the configured station address matches the project settings.
Event ID: 10001: Communication error on the configured interface; data transfer between HMI and PLC has been interrupted.
Inspect the communication cable for damage. Confirm baud rate and interface settings in WinCC flexible match the PLC configuration.
Event ID: 20000: Project download failed or project data on the device is corrupt or incompatible with the current runtime version.
Re-download the project from WinCC flexible to the OP270. Ensure the WinCC flexible version used for the project matches the runtime version on the panel.
Event ID: 40000: Internal device error detected; the panel has encountered a system-level fault during startup or operation.
Perform a full power cycle. If the error persists, reset the panel to factory defaults and re-download the project.
Event ID: 50000: Memory overflow or insufficient memory available for storing alarm logs, recipe data, or project files.
Delete unused recipe records and archived alarm data. Optimize the project to reduce memory usage and re-download to the device.
Event ID: 70000: Configuration error detected; a configured tag or variable cannot be resolved against the connected PLC data blocks.
Verify all PLC tags referenced in the WinCC flexible project exist in the PLC program. Correct any mismatched addresses and re-download the project.
Event ID: 110000: Printer communication error; the panel cannot establish communication with the configured printer.
Check the printer cable connection and verify the printer configuration settings in WinCC flexible match the connected printer model and port.

Frequently Asked Questions

What PLC families are compatible with the OP270 6AV6343-3AA24-0MA6?

The OP270 is compatible with SIMATIC S7-300 and S7-400 PLCs via MPI or PROFIBUS DP interfaces. It can also communicate with S7-200 PLCs and third-party controllers via the serial RS-422/485 interface using appropriate drivers in WinCC flexible.

What software is used to configure and program the OP270?

The OP270 is configured using Siemens WinCC flexible software. Projects are created on a PC and downloaded to the panel via MPI, PROFIBUS DP, or a serial PC/PPI cable.

Does the OP270 6AV6343-3AA24-0MA6 have a touchscreen?

No, the OP270 uses a membrane keypad for operator input and does not feature a touchscreen. All navigation and data entry is performed using the physical function and system keys.

What is the front panel protection rating of the OP270?

The front panel of the OP270 is rated to IP65, providing protection against dust ingress and low-pressure water jets, making it suitable for installation in industrial control cabinet doors.

Can the OP270 store recipe data and alarm logs onboard?

Yes, the OP270 supports onboard storage of recipe data, alarm logs, and project files within its internal memory. The available capacity depends on the project configuration and the amount of data being logged.

Troubleshooting

Display remains blank after power on

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

Ensure the 24 V DC power supply is stable and within specification. If the supply is correct and the display remains blank, the internal power supply board or backlight may be faulty and the unit should be sent for repair.

Panel displays 'No connection to PLC' message continuously

Check the MPI or PROFIBUS DP cable between the OP270 and the PLC. Verify the bus termination resistors are correctly placed at both ends of the network. Confirm the PLC station address configured in the WinCC flexible project matches the actual PLC address.

Replace or reseat the communication cable. Correct the station address in the project and re-download. Ensure only the two physical ends of the bus have termination resistors enabled.

Project download from WinCC flexible fails or is not recognized by the panel

Verify the WinCC flexible project version is compatible with the runtime version installed on the OP270. Check the communication cable used for downloading and confirm the correct COM port or MPI adapter is selected in the transfer settings.

Update the panel runtime to match the WinCC flexible version if necessary. Use a known-good MPI or serial cable and confirm transfer settings. Perform a panel reset to bootloader mode before re-attempting the download if the panel is unresponsive.

Membrane keys are unresponsive or register incorrect inputs

Inspect the membrane keypad for physical damage, contamination, or deformation. Test individual keys in the panel's built-in key test function if available in the service menu.

Clean the keypad surface with a dry cloth. If individual keys are permanently unresponsive, the membrane keypad assembly requires replacement, which typically involves disassembling the front panel housing.

Panel reboots unexpectedly during operation

Monitor the 24 V DC supply voltage for voltage dips or instability under load. Check for excessive ambient temperature around the panel installation. Review the alarm log for any recorded system events prior to the reboot.

Stabilize the power supply by ensuring adequate current capacity and checking for loose connections. Improve ventilation around the panel if overheating is suspected. If reboots persist without a clear cause, the internal hardware may require inspection and repair.

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