Siemens 6AV6321-1GC34-0MY0 SIMATIC OP 321

Name: Siemens 6AV6321-1GC34-0MY0 SIMATIC OP 321
Brand: Siemens
SKU: 6AV6321-1GC34-0MY0
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6321-1GC34-0MY0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6321-1GC34-0MY0 is an operator panel (OP) belonging to the SIMATIC HMI product family, designed for human-machine interface applications in industrial automation environments. This unit provides a compact, panel-mounted operator interface for monitoring and controlling machine processes. It is part of Siemens' established line of text-based operator panels intended for use with SIMATIC PLCs and compatible controllers.

The 6AV6321-1GC34-0MY0 features a text-based LCD display for process visualization and operator input via membrane keypad. It supports serial communication interfaces for integration with SIMATIC S7 and compatible controllers. The panel is built for industrial-grade operation, offering a defined operating temperature range and protection rating suitable for panel door mounting. Configuration is performed using Siemens ProTool or WinCC flexible engineering software.

This operator panel is typically deployed in manufacturing, machine building, and process automation applications where a cost-effective, robust text display interface is required. It is well suited for packaging machinery, conveyor systems, and general-purpose machine control panels where alphanumeric process data display and basic operator input are the primary requirements. Its compact form factor makes it appropriate for space-constrained control cabinet installations.

Technical Specifications

Display Type	Text LCD
Communication Interface	RS-232 / RS-422 / RS-485 serial
Operating Voltage	24 V DC
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
Series/Product Family	SIMATIC HMI OP
Engineering Software	ProTool / WinCC flexible

Common Error Codes & System Events

Event ID: 10000: Communication error between the OP panel and the connected PLC or controller.
Check the serial communication cable connections and verify the communication parameters (baud rate, parity, stop bits) match the PLC configuration.
Event ID: 10001: Connection to the configured PLC has been lost or timed out.
Verify the PLC is powered and running, check cable integrity, and confirm the MPI or serial address settings on both devices.
Event ID: 20000: Configuration or project data on the panel is missing or corrupted.
Re-download the project from the engineering PC using ProTool or WinCC flexible and perform a full panel transfer.
Event ID: 20001: Incompatible project version detected on the panel.
Ensure the engineering software version matches the firmware version on the panel. Re-compile and re-transfer the project.
Event ID: 30000: Panel internal memory error or data loss detected.
Perform a factory reset of the panel and re-transfer the project. If the error persists, the panel may require hardware service.
Event ID: 40000: Operating voltage out of range or power supply fault detected.
Measure the 24 V DC supply at the panel power connector. Ensure the supply is within the specified tolerance and check for loose connections.
Event ID: 50000: Firmware update failure or interrupted firmware transfer.
Repeat the firmware update procedure using the correct firmware version for this panel variant. Ensure stable power and communication during the update.

Frequently Asked Questions

What communication interfaces does the 6AV6321-1GC34-0MY0 support?

This operator panel supports serial communication via RS-232, RS-422, and RS-485 interfaces for connection to SIMATIC S7 PLCs and other compatible controllers.

Which engineering software is used to configure this panel?

The panel is configured using Siemens ProTool or WinCC flexible software. The project is then transferred to the panel via a serial PC-to-panel connection.

What is the supply voltage for this operator panel?

The panel operates on a 24 V DC supply voltage, which is standard for SIMATIC HMI operator panels in this series.

What is the front panel protection rating?

The front panel of the 6AV6321-1GC34-0MY0 is rated IP65, providing protection against dust ingress and low-pressure water jets, making it suitable for industrial panel door mounting.

Is this panel compatible with SIMATIC S7-300 and S7-400 PLCs?

Yes, this operator panel is designed for use with SIMATIC S7-300 and S7-400 PLCs via serial communication, as well as other controllers supported by the ProTool or WinCC flexible driver library.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the panel power connector. Check for blown fuses or wiring faults in the power supply circuit.

Restore the 24 V DC supply to within the specified tolerance. If the supply is correct and the display remains blank, the internal power supply or display unit may require replacement.

Panel displays a communication error immediately after startup

Check the serial communication cable between the panel and the PLC. Verify that the baud rate, parity, data bits, and stop bits configured in the project match the PLC settings.

Correct any mismatched communication parameters in the engineering software and re-transfer the project. Replace the communication cable if physical damage or continuity faults are found.

Project transfer from engineering PC fails or does not complete

Verify the PC-to-panel transfer cable is correctly connected and that the panel is set to transfer mode. Check that the COM port settings on the PC match the panel's transfer interface.

Set the panel to transfer mode via the panel menu, select the correct COM port and transfer settings in ProTool or WinCC flexible, and retry the transfer. Use a known-good transfer cable if the issue persists.

Panel keys are unresponsive or intermittently fail

Inspect the membrane keypad for physical damage, contamination, or deformation. Test each key systematically using the panel's built-in key test function if available.

Clean the keypad surface with a dry cloth. If individual keys are permanently unresponsive, the membrane keypad assembly will require replacement.

Panel loses project data after power cycle

This may indicate a fault with the internal non-volatile memory or that the project was not fully transferred and stored correctly.

Re-transfer the project using the engineering software and confirm the transfer completes without errors. If data loss persists after confirmed successful transfers, the panel's internal memory may be faulty and the unit should be sent for repair.

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