Siemens 6AV5040-1BF12-1AAO SIMATIC OP 40

Name: Siemens 6AV5040-1BF12-1AAO SIMATIC OP 40
Brand: Siemens
SKU: 6AV5040-1BF12-1AAO
Price: 1835.00 EUR
Availability: InStock

€ 1.835,00

Condition

Clear

SKU: 6AV5040-1BF12-1AAO Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV5040-1BF12-1AA0 is an operator panel (OP 40) belonging to the SIMATIC HMI family, designed for use in industrial automation environments. This unit serves as a human-machine interface for monitoring and controlling programmable logic controllers and automated systems. It is a membrane keypad-based operator panel without a touchscreen, intended for robust panel-mounting applications.

The OP 40 features a monochrome LCD display with a defined character matrix layout, enabling clear visualization of process values, alarms, and status messages. It communicates with Siemens SIMATIC S5 and S7 PLCs via MPI or point-to-point serial interfaces, making it compatible with a wide range of legacy and current Siemens controller platforms. The panel is configured using SIMATIC ProTool software and supports recipe management, alarm logging, and multi-language text display. The unit operates on a 24 V DC supply and is rated for standard industrial ambient conditions.

The OP 40 is commonly deployed in machine tool control panels, conveyor systems, packaging machinery, and general-purpose industrial automation cabinets. Its membrane keypad design provides reliable operation in environments where touchscreen panels may be susceptible to contamination or mechanical damage. The panel is well-suited for applications requiring straightforward operator interaction with a SIMATIC PLC without the need for graphical visualization.

Technical Specifications

Display Type	Monochrome LCD
Display Format	4 lines x 20 characters
Input/Operating Voltage	24 V DC
Communication Interface	MPI, RS-232 (point-to-point serial)
PLC Compatibility	SIMATIC S5, SIMATIC S7
Configuration Software	SIMATIC ProTool
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
IP Rating (front)	IP 65
Mounting	Panel mounting
Series/Product Family	SIMATIC OP 40
Certifications	CE, UL

Common Error Codes & System Events

Event ID: 10000: Communication error between the OP panel and the connected PLC. The panel cannot establish or maintain a connection.
Check MPI or serial cable connections, verify PLC address settings, and confirm the PLC is in RUN mode. Check baud rate and bus parameters in ProTool configuration.
Event ID: 10001: PLC not responding. The operator panel has lost communication with the configured PLC.
Verify the PLC is powered and operational. Check cable integrity and connector pins. Confirm the MPI address configured in ProTool matches the PLC address.
Event ID: 20000: Configuration error. The project loaded on the panel is incompatible or corrupt.
Reload the project using SIMATIC ProTool. Verify the project was compiled without errors and is compatible with the OP 40 firmware version.
Event ID: 40000: Alarm buffer overflow. The number of pending alarms exceeds the panel buffer capacity.
Acknowledge and clear existing alarms. Review the alarm configuration in ProTool to reduce the number of simultaneous alarms or increase acknowledgement frequency.
Event ID: 50000: Internal device error. A hardware or firmware fault has been detected within the operator panel.
Cycle power to the panel. If the error persists, perform a factory reset or reload the firmware. Contact Siemens technical support if the fault remains.
Event ID: 30000: Tag update error. A configured variable (tag) cannot be read from or written to the PLC.
Verify the tag address in ProTool matches the actual PLC data block or memory address. Check that the PLC program has the corresponding data available.

Frequently Asked Questions

Which PLCs are compatible with the OP 40 (6AV5040-1BF12-1AA0)?

The OP 40 is compatible with Siemens SIMATIC S5 and S7 series PLCs, communicating via MPI or point-to-point RS-232 serial interfaces.

What software is required to configure the OP 40?

The OP 40 is configured using Siemens SIMATIC ProTool software. The project is then downloaded to the panel via a serial programming cable.

What is the supply voltage for this operator panel?

The OP 40 operates on a 24 V DC supply voltage, which is standard for SIMATIC HMI panels in industrial cabinet installations.

Does the OP 40 support touchscreen input?

No, the OP 40 uses a membrane keypad for operator input and does not feature a touchscreen. This makes it suitable for environments where touchscreens may be impractical.

What is the front panel protection rating of the OP 40?

The front panel of the OP 40 is rated IP 65, providing protection against dust ingress and low-pressure water jets when correctly installed in a panel cutout.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the power connector on the rear of the panel. Check for blown internal fuse or wiring fault.

Ensure the 24 V DC supply is within tolerance. Replace the internal fuse if blown. If the supply is correct and the display remains blank, the internal power supply or display unit may require replacement.

Panel shows continuous communication error with PLC

Check the MPI or serial cable connection between the OP 40 and the PLC. Verify the MPI address and baud rate settings in the ProTool project match the PLC configuration.

Replace or reseat the communication cable. Correct the MPI address or baud rate in the ProTool project and reload it to the panel. Ensure the PLC is in RUN mode and the MPI network termination resistors are correctly set.

Operator panel keys are unresponsive or intermittently responsive

Inspect the membrane keypad for physical damage, contamination, or wear. Test each key systematically to identify if the fault is isolated to specific keys or the entire keypad.

Clean the keypad surface with a dry cloth. If individual keys are damaged or the membrane is worn, the keypad membrane assembly should be replaced.

Project download to the panel fails

Check the serial cable connection between the programming PC and the OP 40. Verify the COM port settings in ProTool match the PC serial port configuration.

Use a known-good Siemens programming cable. Confirm the correct COM port is selected in ProTool and that no other application is using the port. Retry the download with the panel in transfer mode.

Alarm messages display garbled or incorrect text

The project loaded on the panel may be outdated or the character encoding may be mismatched. Compare the displayed text against the ProTool project alarm text definitions.

Recompile and reload the ProTool project to the panel. Verify that the correct language and character set are selected in the project settings for the OP 40.

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