Siemens 6AV6341-1DC24-0AY0 OP27

€ 1.995,00

SKU: 6AV6341-1DC24-0AY0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6341-1DC24-0AY0 is an OP27 operator panel belonging to the SIMATIC HMI family, designed for human-machine interface applications in industrial automation environments. This unit provides a monochrome graphical display for process visualization and operator control, and is configured and programmed using Siemens ProTool software. The OP27 series is a well-established panel in the SIMATIC HMI portfolio, offering reliable operator interaction for a wide range of machine and process control tasks.

The OP27 features a 5.7-inch STN monochrome LCD display with a resolution of 320 x 240 pixels, providing clear visualization of process data, alarms, and operator prompts. The panel includes a membrane keypad with function keys, system keys, and numeric entry keys, enabling full operator interaction without a touchscreen. It supports MPI and PROFIBUS-DP communication interfaces for direct integration with SIMATIC S7-300 and S7-400 PLCs, and also provides a serial RS-232/RS-422/RS-485 interface for connection to third-party controllers. The unit operates on a 24 V DC supply and is rated to IP65 at the front panel, making it suitable for flush panel mounting in industrial enclosures.

The OP27 is widely used in machine building, manufacturing automation, and process industries where a compact, robust operator panel is required for local HMI functionality. It is commonly found on packaging machinery, conveyor systems, press and forming equipment, and general-purpose industrial machines. Its compatibility with the SIMATIC S7 PLC family and support for PROFIBUS-DP makes it a practical choice for integration into existing Siemens automation architectures.

Technical Specifications

Display Size	5.7 inch
Display Type	STN monochrome LCD
Display Resolution	320 x 240 pixels
Display Colors	Monochrome (blue/white)
Input/Operating Voltage	24 V DC
Communication Interface	MPI, PROFIBUS-DP, RS-232/RS-422/RS-485
IP/Protection Rating	IP65 (front panel)
Mounting	Panel flush mounting
Operating Temperature	0 °C to 50 °C
Storage Temperature	-20 °C to 60 °C
Relative Humidity	10 % to 90 % (non-condensing)
Series/Product Family	SIMATIC HMI OP27
Configuration Software	ProTool
Certifications	CE, UL

Common Error Codes and System Events

Event ID: 10000: Communication error between the OP27 and the connected PLC. The panel cannot establish or maintain a connection to the controller.
Check MPI or PROFIBUS-DP cable connections and termination resistors. Verify the PLC address and baud rate settings match those configured in ProTool. Ensure the PLC is powered and in RUN mode.
Event ID: 10001: Timeout error on the communication link. The PLC did not respond within the expected time window.
Check network cabling for breaks or loose connectors. Verify bus termination is correct at both ends of the network. Reduce bus length or check for electromagnetic interference sources.
Event ID: 20000: Configuration error detected. The project loaded on the OP27 is incompatible with the connected PLC or the panel hardware.
Re-download the correct project from ProTool to the OP27. Verify that the PLC type and address settings in the project match the actual hardware configuration.
Event ID: 40000: Internal device error or hardware fault detected on the OP27 panel.
Cycle power to the panel. If the error persists, perform a factory reset and re-download the project. If the fault remains, the panel may require repair or replacement.
Event ID: 50000: Tag or variable update error. One or more process variables cannot be read from the PLC.
Verify that the PLC data block addresses referenced in the project exist and are accessible. Check that the PLC program has not been modified in a way that removes or relocates the referenced tags.
System Error: Flash: Error writing to or reading from the internal flash memory of the OP27.
Attempt to re-download the project to the panel. If the error persists, the internal flash memory may be faulty and the unit should be sent for repair.
Watchdog Error: The panel's internal watchdog timer has triggered, indicating a software or hardware hang condition.
Power cycle the OP27. If the watchdog error recurs frequently, check for excessive screen complexity or communication load. A persistent watchdog fault may indicate a hardware defect requiring repair.

Frequently Asked Questions

Which PLCs are compatible with the Siemens OP27 (6AV6341-1DC24-0AY0)?

The OP27 is primarily designed for use with Siemens SIMATIC S7-300 and S7-400 PLCs via MPI or PROFIBUS-DP. It can also connect to S5 PLCs and selected third-party controllers via the serial RS-232/RS-422/RS-485 interface.

What software is used to configure and program the OP27?

The OP27 is configured using Siemens ProTool software. Note that ProTool is a legacy tool and is no longer actively developed; projects must be created and transferred using a compatible version of ProTool running on a Windows PC.

What is the supply voltage for the 6AV6341-1DC24-0AY0?

The OP27 operates on a 24 V DC power supply. Ensure the supply is within the specified tolerance range and adequately rated for the panel's power consumption.

Does the OP27 have a touchscreen?

No, the OP27 does not have a touchscreen. Operator input is performed via the integrated membrane keypad, which includes function keys, system keys, and a numeric keypad.

What is the front panel protection rating of the OP27?

The OP27 provides an IP65 protection rating at the front panel when correctly installed in a panel cutout with the supplied seal, making it resistant to dust and water jets.

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 tolerance and that the connector is fully seated. Inspect the internal fuse if accessible.

Correct any supply voltage issues. If the supply is confirmed good and the display remains blank, the internal power supply board or backlight inverter may be faulty and the unit should be inspected for repair.

OP27 displays 'No Connection' or communication error on startup

Verify the MPI or PROFIBUS-DP cable is connected and undamaged. Check bus termination at both ends of the network. Confirm the PLC address and baud rate in the OP27 project match the actual PLC settings.

Correct cable connections and termination. Adjust address and baud rate settings in ProTool and re-download the project. Replace the communication cable if it is found to be defective.

Membrane keypad keys are unresponsive or intermittently failing

Test each key systematically in the OP27 diagnostic mode if available. Inspect the keypad membrane for physical damage, contamination, or delamination at the connector.

Clean the keypad surface with a dry cloth. If individual keys have failed due to membrane wear, the keypad membrane assembly should be replaced. This is a common wear item on older OP27 panels.

Project download from ProTool fails or is incomplete

Check the PC-to-panel transfer cable connection (typically via the serial or MPI interface). Verify that the ProTool software version is compatible with the OP27 firmware version. Confirm the correct communication port is selected in ProTool.

Replace or reseat the transfer cable. Ensure the correct COM port or MPI adapter is selected in ProTool settings. If the panel flash memory is corrupted, perform a panel reset before attempting the download again.

Display shows corrupted graphics or incorrect characters

This may indicate a corrupted project in flash memory or a failing display. Re-download the project from ProTool to rule out software corruption. Check for loose internal display ribbon cable connections.

Re-download the project to the OP27. If corruption persists after a fresh download, the display module or internal memory may be defective and the unit should be returned for repair.

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