Siemens 6AV6355-1FA00-0DL7 OP 35

€ 2.495,00

SKU: 6AV6355-1FA00-0DL7 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6355-1FA00-0DL7 is an operator panel (OP 35) belonging to the SIMATIC HMI family, designed for human-machine interface applications in industrial automation environments. This unit provides a compact, panel-mounted display and input solution for process visualization and machine control. It is part of Siemens' established OP series, which offers reliable operator interface functionality for a wide range of automation tasks.

The OP 35 features a monochrome or color LCD display with a resolution suited for text and simple graphic visualization, along with a membrane keypad for operator input. It supports communication via the MPI (Multi-Point Interface) and PROFIBUS-DP protocols, enabling direct integration with Siemens S7-300 and S7-400 PLCs. The unit operates on a 24 V DC supply and is built to withstand industrial environments, with a front panel protection rating of IP65. Configuration is performed using Siemens ProTool or WinCC flexible engineering software.

The OP 35 is commonly deployed in manufacturing, process automation, and machine tool applications where a dedicated operator terminal is required for parameter entry, status monitoring, and alarm management. Its compatibility with the SIMATIC S7 controller family makes it a natural fit for existing Siemens automation architectures. The panel-mount design and robust keypad interface make it suitable for environments where touchscreen operation is not practical.

Technical Specifications

Series/Product Family	SIMATIC HMI OP 35
Display Type	STN LCD
Display Colors	Monochrome (blue/white)
Input/Operating Voltage	24 V DC
Communication Interface	MPI, PROFIBUS-DP
Input Method	Membrane keypad
Protection Rating (Front)	IP65
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
Compatible Engineering Software	ProTool, WinCC flexible

Common Error Codes & System Events

Event ID: 10000: Communication error between the OP 35 and the connected PLC. The panel cannot establish or maintain a connection.
Check MPI or PROFIBUS-DP cable connections and termination resistors. Verify the PLC address settings match the configuration in ProTool/WinCC flexible. Ensure the PLC is in RUN mode.
Event ID: 10001: Connection to the configured PLC has been lost during operation.
Inspect the communication cable for damage or loose connectors. Verify bus termination and cable shielding. Restart the panel and PLC if the connection is not restored automatically.
Event ID: 20000: Project download error. The configuration project could not be transferred to the panel.
Check the PC-to-panel transfer cable and port settings. Ensure the panel is in transfer mode before initiating the download. Verify compatibility between the ProTool/WinCC flexible version and the panel firmware.
Event ID: 40000: Internal device error or hardware fault detected on the OP 35.
Cycle power to the panel. If the error persists, perform a factory reset. If the fault remains, the unit may require repair or replacement.
Event ID: 50000: Configuration data on the panel is corrupted or missing.
Re-download the project configuration from the engineering PC using ProTool or WinCC flexible. Ensure the correct project file is used for this panel type.
Event ID: 60000: Power supply voltage out of range. The 24 V DC supply is outside the permissible tolerance.
Measure the supply voltage at the panel connector. Ensure the supply is within the specified 24 V DC range (typically 20.4–28.8 V DC). Check the power supply unit and wiring.
Event ID: 70000: Alarm buffer overflow. The number of pending alarms exceeds the panel's alarm buffer capacity.
Acknowledge and clear existing alarms on the panel. Review the alarm configuration in the project to reduce unnecessary alarm triggers. Archive alarm logs if required.

Frequently Asked Questions

Which PLCs are compatible with the Siemens OP 35 (6AV6355-1FA00-0DL7)?

The OP 35 is compatible with Siemens SIMATIC S7-300 and S7-400 PLCs via MPI or PROFIBUS-DP communication. It can also communicate with S5 series PLCs using appropriate adapters and protocol settings.

What engineering software is required to configure the OP 35?

The OP 35 is configured using Siemens ProTool or WinCC flexible engineering software. The project is then downloaded to the panel via a serial or MPI connection from the engineering PC.

What is the supply voltage for the 6AV6355-1FA00-0DL7?

The panel operates on a 24 V DC supply. The permissible voltage range is typically 20.4 V DC to 28.8 V DC, in line with standard SIMATIC HMI panel specifications.

What is the front panel protection rating of the OP 35?

The OP 35 has a front panel protection rating of IP65, making it resistant to dust ingress and low-pressure water jets, suitable for industrial panel-mount installations.

Can the OP 35 be used as a replacement for other OP series panels?

The OP 35 can replace other panels in the SIMATIC OP series provided the project configuration is adapted for the specific panel type and screen resolution. Compatibility should be verified in the engineering software before deployment.

Troubleshooting

Display remains blank after power on

Check the 24 V DC supply voltage at the panel power connector using a multimeter. Verify that the supply is within the specified range. Inspect internal fuses if accessible.

Restore the supply voltage to 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' or communication error on startup

Verify the MPI or PROFIBUS-DP cable is correctly connected and terminated at both ends. Check that the PLC address configured in the panel project matches the actual PLC station address. Confirm the PLC is powered and in RUN mode.

Correct any address mismatches in the ProTool or WinCC flexible project and re-download to the panel. Replace damaged cables and ensure proper bus termination resistors are installed at both ends of the bus.

Keypad buttons are unresponsive or intermittently responsive

Inspect the membrane keypad for physical damage, contamination, or deformation. Check the internal ribbon cable connection between the keypad and the main board.

Clean the keypad surface with a dry cloth. If the ribbon cable is loose, reseat it carefully. If the keypad membrane is damaged, it should be replaced by a qualified technician.

Project download fails or transfer cannot be initiated

Confirm the panel is set to transfer mode before starting the download from the engineering PC. Check the PC serial or MPI adapter settings and cable integrity. Verify the ProTool or WinCC flexible version is compatible with the panel firmware version.

Set the panel to transfer mode via the panel startup menu. Update or reinstall the engineering software if version incompatibility is suspected. Replace the transfer cable if continuity testing reveals a fault.

Panel restarts repeatedly or enters a boot loop

This may indicate corrupted firmware or a failed project download. Check if the panel enters the startup/loader menu during the boot cycle.

Access the panel loader menu during startup and perform a memory reset or re-download the project. If the firmware is corrupted, a firmware update may be required using the appropriate Siemens update tool and firmware package for the OP 35.

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