Siemens 6AV6321-1GC14-0MY6 SIMATIC OP3

Name: Siemens 6AV6321-1GC14-0MY6 SIMATIC OP3
Brand: Siemens
SKU: 6AV6321-1GC14-0MY6
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6321-1GC14-0MY6 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6321-1GC14-0MY6 is an operator panel (OP3) belonging to the SIMATIC HMI family, designed for human-machine interface applications in industrial automation environments. This compact text-based operator panel provides a straightforward interface for monitoring and controlling SIMATIC S7 and S5 PLC systems. It is a member of the classic SIMATIC HMI panel series, offering reliable and cost-effective operator interaction for smaller automation tasks.

The OP3 features a 2-line LCD text display capable of showing alphanumeric characters, with a membrane keypad for operator input. It communicates via the MPI (Multi-Point Interface) or PROFIBUS-DP protocol, enabling direct integration with SIMATIC S7-200, S7-300, and S7-400 controllers. The panel operates on a 24 V DC supply and is configured using SIMATIC ProTool software. Its compact and robust construction is suited for panel door mounting with a straightforward cutout installation.

The SIMATIC OP3 is commonly deployed in manufacturing, process automation, and machine building applications where a simple, low-cost text display interface is sufficient. It is particularly suited for smaller machines and systems requiring basic status display, alarm messaging, and parameter input without the need for graphical visualization. Industries such as food and beverage, packaging, and general factory automation frequently use this panel for local operator stations.

Technical Specifications

Display Type	LCD text display, 2 lines
Display Characters	2 x 20 characters per line
Input/Operating Voltage	24 V DC
Power Consumption	2.5 W (typical)
Communication Interface	MPI / PROFIBUS-DP
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 (flush)
Certifications	CE, UL
Configuration Software	SIMATIC ProTool
Series/Product Family	SIMATIC OP3

Common Error Codes and System Events

Event ID: 10000: Communication error between the OP3 and the connected PLC. The panel cannot establish or maintain a connection to the controller.
Check MPI/PROFIBUS cable connections and termination resistors. Verify the PLC address settings match the OP3 configuration. Ensure the PLC is in RUN mode.
Event ID: 10001: Configured connection to the PLC is not available or the PLC is not responding within the timeout period.
Verify the PLC is powered and operational. Check the MPI/PROFIBUS network address and baud rate settings on both the OP3 and PLC. Inspect cable integrity.
Event ID: 20000: Project data on the OP3 is missing or corrupted. The panel cannot load the configured project.
Re-transfer the project from SIMATIC ProTool to the OP3. Ensure the transfer cable and ProTool version are compatible with the 6AV6321-1GC14-0MY6.
Event ID: 40000: Operating voltage is outside the permissible range. The supply voltage has dropped below or exceeded the specified 24 V DC limits.
Measure the supply voltage at the OP3 power connector. Ensure the power supply provides a stable 24 V DC within the specified tolerance. Replace the power supply if necessary.
Event ID: 50000: Internal hardware fault detected on the operator panel.
Cycle power to the OP3. If the fault persists, the unit may require repair or replacement. Contact Siemens technical support or a qualified repair facility.
System Message: WAIT: The OP3 is waiting for a connection to the PLC to be established during startup.
Ensure the PLC is powered on and the MPI/PROFIBUS network is correctly configured. Check that the OP3 project address matches the PLC station address.
System Message: TRANSFER: The OP3 is in transfer mode, waiting to receive a project download from the configuration PC.
If unintentional, restart the OP3. If intentional, proceed with the project transfer from SIMATIC ProTool via the appropriate transfer cable.

Frequently Asked Questions

Which PLCs are compatible with the SIMATIC OP3 (6AV6321-1GC14-0MY6)?

The OP3 is compatible with SIMATIC S7-200, S7-300, and S7-400 PLCs via MPI or PROFIBUS-DP. It also supports connection to SIMATIC S5 controllers via appropriate interface adapters.

What software is required to configure and program the OP3?

The OP3 is configured using SIMATIC ProTool software. Projects are transferred to the panel via a PC/PPI or MPI transfer cable.

What is the supply voltage for the 6AV6321-1GC14-0MY6?

The OP3 operates on a 24 V DC supply voltage. Ensure the power source is stable and within the specified tolerance range.

What is the front panel protection rating of the OP3?

The front panel of the OP3 carries an IP65 protection rating, making it suitable for panel door mounting in environments with dust and water spray exposure.

Can the OP3 display alarm messages from the connected PLC?

Yes, the OP3 supports alarm and event message display. Messages are configured in SIMATIC ProTool and triggered by PLC bit signals, allowing operators to view active alarms on the 2-line text display.

Troubleshooting

Display remains blank after power on

Check the 24 V DC supply voltage at the OP3 power connector using a multimeter. Verify the power supply output is within specification.

Restore the correct 24 V DC supply. If the supply is correct and the display remains blank, the internal power supply or display unit may be faulty and the panel should be sent for repair.

OP3 continuously displays 'WAIT' and does not connect to PLC

The panel is not establishing communication with the PLC. Verify MPI/PROFIBUS cable connections, network termination, and that the PLC station address in the OP3 project matches the actual PLC address.

Correct any address mismatches in the ProTool project and re-transfer. Check and replace the MPI/PROFIBUS cable if damaged. Ensure termination resistors are correctly placed at both ends of the network.

Project transfer from ProTool fails or is not recognized

Confirm the OP3 is in transfer mode (displaying 'TRANSFER'). Check the transfer cable type and PC COM port settings. Verify the ProTool software version is compatible with the OP3 firmware.

Restart the OP3 in transfer mode and retry the download. Use the correct PC/MPI or PC/PPI transfer cable. Update ProTool to a compatible version if necessary.

Operator keypad inputs are not responding

Inspect the membrane keypad for physical damage or contamination. Attempt to navigate menus to determine if specific keys or all keys are unresponsive.

Clean the keypad surface. If specific keys are permanently unresponsive, the membrane keypad assembly may need replacement. If all keys fail, the internal electronics may be faulty and require professional repair.

Alarm messages are not appearing on the display despite PLC fault conditions

Verify that the alarm trigger bits in the PLC program are being set correctly. Check the OP3 project configuration in ProTool to confirm alarm messages are correctly linked to the PLC bit addresses.

Correct any address mapping errors in the ProTool project and re-transfer to the OP3. Confirm the PLC program is setting the correct alarm bits. Test with a forced bit in the PLC to verify message display.

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