Siemens 6AV6321-1CA13-1CY0 SIMATIC OP3

Name: Siemens 6AV6321-1CA13-1CY0 SIMATIC OP3
Brand: Siemens
SKU: 6AV6321-1CA13-1CY0
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6321-1CA13-1CY0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6321-1CA13-1CY0 is an operator panel (OP3) belonging to the SIMATIC HMI family, manufactured by Siemens. It is a compact, text-based operator panel designed for straightforward machine-level human-machine interface tasks. The OP3 provides a simple and cost-effective solution for displaying process values, messages, and operator inputs in industrial environments.

The OP3 features a 2-line LCD text display capable of showing up to 20 characters per line, providing clear readout of process data and alarm messages. It communicates via the MPI (Multi-Point Interface) and PROFIBUS DP protocols, enabling direct integration with Siemens S7-200, S7-300, and S7-400 PLCs. The panel includes a membrane keypad with function keys and system keys for operator input, and is configured using Siemens ProTool or WinCC flexible software. It operates on a 24 V DC supply and is built for reliable continuous operation in industrial conditions.

The SIMATIC OP3 is widely used in manufacturing, packaging, and process automation applications where a compact and economical HMI solution is required. It is particularly suited for small machines and equipment where basic status display and operator input are sufficient, without the need for graphical visualization. Its compatibility with the SIMATIC S7 PLC family makes it a natural fit for Siemens-based automation architectures in industries such as food and beverage, automotive, and general machinery.

Technical Specifications

Display Type	LCD text display
Display Lines	2 lines x 20 characters
Input/Operating Voltage	24 V DC
Communication Interface	MPI, PROFIBUS DP
Configuration Software	ProTool, WinCC flexible
Keypad	Membrane keypad with function and system keys
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10 % to 90 % (non-condensing)
IP Protection Rating	IP65 (front panel)
Mounting	Panel mounting
Certifications	CE, UL
Series/Product Family	SIMATIC HMI OP3

Common Error Codes & System Events

Event ID: 10000: Communication error between OP3 and connected PLC. The panel cannot establish or maintain a connection to the configured controller.
Check MPI/PROFIBUS cable connections and termination resistors. Verify the PLC address and baud rate settings match the OP3 configuration. Ensure the PLC is in RUN mode.
Event ID: 10001: Configured PLC address not found on the bus. The OP3 cannot locate the target controller at the specified network address.
Verify the PLC station address in the OP3 project matches the actual PLC MPI/PROFIBUS address. Check bus cable integrity and termination.
Event ID: 20000: Project download error. A fault occurred during transfer of the configuration project to the OP3.
Check the serial or MPI transfer cable connection. Ensure the OP3 is in transfer mode before initiating download. Retry the download from ProTool or WinCC flexible.
Event ID: 20001: Incompatible project version. The project file being downloaded is not compatible with the firmware version on the OP3.
Update the OP3 firmware to match the project version, or recompile the project using a compatible version of ProTool or WinCC flexible.
Event ID: 40000: System memory error detected. Internal memory fault on the OP3.
Perform a factory reset of the OP3. If the error persists, the unit may require repair or replacement of internal memory components.
Event ID: 50000: Operating voltage out of range. The supply voltage to the OP3 has fallen below or exceeded the permissible limits.
Measure the 24 V DC supply voltage at the OP3 power connector. Ensure the supply is stable and within the specified tolerance range. Check wiring and power supply unit.
Event ID: 60000: Keypad fault. One or more keys on the membrane keypad are not responding or are registering a permanent key press.
Inspect the membrane keypad for physical damage or contamination. Clean the keypad surface. If the fault persists, the keypad membrane or the OP3 unit may need replacement.

Frequently Asked Questions

Which PLCs are compatible with the SIMATIC OP3 (6AV6321-1CA13-1CY0)?

The OP3 is compatible with Siemens SIMATIC S7-200, S7-300, and S7-400 PLCs via MPI or PROFIBUS DP communication interfaces.

What software is used to configure and program the OP3?

The OP3 is configured using Siemens ProTool or WinCC flexible engineering software. Projects are downloaded to the panel via a serial PC/PPI cable or MPI connection.

What is the supply voltage for the 6AV6321-1CA13-1CY0?

The OP3 operates on a 24 V DC supply voltage.

What is the front panel protection rating of the OP3?

The OP3 provides IP65 protection at the front panel, making it suitable for installation in control cabinet doors exposed to dust and water spray.

Can the OP3 display alarm and event messages from the PLC?

Yes, the OP3 can display bit-triggered and word-triggered alarm messages configured in the ProTool or WinCC flexible project, allowing operators to view active faults and process events.

Troubleshooting

Display remains blank after power on

Check the 24 V DC supply voltage at the OP3 power connector terminals. Verify polarity and measure actual voltage with a multimeter.

Ensure the supply voltage is within the specified 24 V DC range. Check and replace any blown fuses in the supply circuit. If the supply is correct and the display remains blank, the internal power supply or display unit may be faulty and require repair.

OP3 shows communication error and cannot connect to PLC

Verify the MPI or PROFIBUS DP cable connections at both the OP3 and PLC ends. Check that bus termination resistors are correctly installed at both ends of the cable. Confirm the PLC address and baud rate configured in the OP3 project match the actual PLC settings.

Correct any wiring faults or missing termination. Adjust the PLC address and baud rate in the OP3 project if necessary and re-download the project. Replace the MPI/PROFIBUS cable if continuity testing reveals a fault.

Project download to OP3 fails or times out

Confirm the OP3 is set to transfer mode before initiating the download. Check the PC-to-OP3 transfer cable (serial or MPI) for damage and correct connection. Verify the COM port settings in the configuration software match the PC hardware.

Restart the OP3 in transfer mode and retry the download. Replace the transfer cable if faulty. Ensure the correct COM port and transfer speed are selected in ProTool or WinCC flexible.

Keypad keys are unresponsive or register incorrect inputs

Inspect the membrane keypad surface for physical damage, contamination, or deformation. Check whether the issue is isolated to specific keys or affects all keys.

Clean the keypad surface with a dry cloth to remove any contamination. If specific keys are physically damaged or the membrane is torn, the keypad membrane assembly should be replaced. If all keys are unresponsive, check the internal keypad connector on the PCB.

OP3 displays garbled text or incorrect characters

This may indicate a corrupted project in the OP3 memory or a mismatch between the downloaded project and the panel firmware version.

Re-download the project from ProTool or WinCC flexible to the OP3. If the problem persists, perform a factory reset of the OP3 and re-download. Verify that the firmware version on the OP3 is compatible with the project version being used.

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