Siemens 6AV5040-1BF41-0BA0 SIMATIC OP 40

Name: Siemens 6AV5040-1BF41-0BA0 SIMATIC OP 40
Brand: Siemens
SKU: 6AV5040-1BF41-0BA0
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV5040-1BF41-0BA0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV5040-1BF41-0BA0 is an operator panel (OP 40) belonging to the SIMATIC HMI family, designed for human-machine interface applications in industrial automation environments. This unit provides a monochrome display with function keys for process visualization and operator control, and is part of Siemens' classic OP series of operator panels. It is intended for use with SIMATIC S5 and S7 programmable logic controllers via serial communication interfaces.

The OP 40 features a built-in LCD display and a comprehensive keypad layout including function keys, numeric keys, and system keys that allow operators to navigate screens, enter values, and acknowledge alarms without a touchscreen. It communicates with PLCs using the MPI or PROFIBUS-DP protocol as well as point-to-point serial interfaces, and is configured using Siemens ProTool software. The unit operates on a 24 V DC supply and is designed for panel front mounting with an IP65 protection rating on the front face.

The SIMATIC OP 40 is widely used in manufacturing, process control, and machine automation applications where a robust, keypad-operated interface is preferred over touchscreen solutions. It is particularly suited to environments with high vibration or where operators wear gloves, making direct key input more reliable. Industries such as automotive manufacturing, food and beverage processing, and general machine building have historically deployed this panel for local operator control stations.

Technical Specifications

Display Type	Monochrome LCD
Display Size	5.7 inch
Input Voltage	24 V DC
Protection Rating (Front)	IP65
Communication Interface	MPI, PROFIBUS-DP, Point-to-Point (RS-232/RS-422/RS-485)
Configuration Software	Siemens ProTool
PLC Compatibility	SIMATIC S5, SIMATIC S7
Operating Temperature	0 °C to 50 °C
Storage Temperature	-20 °C to 70 °C
Mounting	Panel front mounting
Certifications	CE, UL
Series	SIMATIC OP (Classic HMI)

Common Error Codes & System Events

System Error 1: Communication error between the OP 40 and the connected PLC. The panel cannot establish or maintain a connection.
Check the communication cable and connector integrity. Verify the MPI or PROFIBUS address settings on both the OP and the PLC. Ensure the baud rate is correctly configured on both devices.
System Error 2: Configuration data on the panel is missing or corrupted. The panel cannot load the project.
Re-download the project from ProTool to the operator panel. Check the serial download cable and connection. Ensure the correct panel type is selected in the ProTool project.
System Error 3: Internal memory error detected. The panel's flash memory or RAM may be faulty.
Perform a factory reset and re-download the project. If the error persists, the internal memory or main board may require replacement.
System Error 4: Power supply voltage is outside the permissible range. The 24 V DC supply is too low or too high.
Measure the supply voltage at the panel's power connector. Ensure the supply is within the specified 24 V DC tolerance range. Check for loose connections or an undersized power supply.
System Error 5: Watchdog timeout. The panel's processor has not responded within the expected time, causing a watchdog reset.
Restart the panel. If the fault recurs frequently, check for excessive CPU load caused by a large or complex project. A hardware fault on the main board may require repair or replacement.
PLC Connection Timeout: The panel has lost communication with the PLC and is displaying a connection timeout message on screen.
Verify the PLC is powered and in RUN mode. Check all communication cables and termination resistors on the PROFIBUS or MPI network. Confirm the PLC address in the panel project matches the physical PLC configuration.
Recipe/Data Error: A recipe or data record cannot be read or written correctly, often due to a mismatch between the panel project and PLC data blocks.
Verify that the data block addresses configured in ProTool match the actual data blocks in the PLC program. Re-download the project and test recipe operations again.

Frequently Asked Questions

What PLC families are compatible with the SIMATIC OP 40 (6AV5040-1BF41-0BA0)?

The OP 40 is compatible with Siemens SIMATIC S5 and S7 PLC families via MPI, PROFIBUS-DP, or point-to-point serial interfaces. Third-party PLCs may also be supported depending on the available driver in ProTool.

What software is used to configure and program the OP 40?

The OP 40 is configured using Siemens ProTool, which is the classic configuration software for the SIMATIC OP and TD series panels. WinCC flexible does not support this older panel generation.

What is the supply voltage for the 6AV5040-1BF41-0BA0?

The panel requires a 24 V DC power supply. The supply must be within the specified tolerance range to ensure reliable operation.

Does the OP 40 have a touchscreen?

No, the OP 40 is a keypad-operated panel and does not feature a touchscreen. Operator input is performed via function keys, numeric keys, and system keys on the front panel.

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

The front panel of the OP 40 carries an IP65 protection rating, making it resistant to dust ingress and low-pressure water jets, suitable for industrial panel installation.

Troubleshooting

Display remains blank after power is applied

Check the 24 V DC supply voltage at the power connector using a multimeter. Inspect the internal fuse if accessible. Verify that the supply polarity is correct.

Restore the supply voltage to within the specified 24 V DC range. Replace any blown internal fuse with the correct rating. If the display backlight has failed, the backlight or display assembly may require replacement.

Panel displays 'No Connection' or communication error to PLC

Verify the communication cable between the OP 40 and the PLC is correctly wired and undamaged. Check the MPI or PROFIBUS address configured in the panel project against the PLC's actual address. Inspect termination resistors on the bus.

Replace or reseat the communication cable. Correct the address settings in the ProTool project and re-download. Ensure bus termination is active only at the two physical ends of the network.

Project cannot be downloaded to the panel

Check the download cable connection between the PC and the OP 40. Verify that the correct COM port and baud rate are selected in ProTool. Confirm the panel is in transfer mode.

Place the panel in transfer mode by navigating to the system menu. Use a known-good Siemens download cable. Reinstall the ProTool software driver if the COM port is not recognized by the PC.

Function keys do not respond or produce incorrect actions

Check whether the keypad membrane is physically damaged or contaminated. Verify the key assignments in the ProTool project are correctly configured and the project has been fully downloaded.

Clean the keypad surface. If keys are physically damaged, the keypad membrane assembly requires replacement. Re-download the project to ensure the latest key assignments are active on the panel.

Panel restarts repeatedly or enters a boot loop

This may indicate corrupted project data in flash memory or a hardware fault on the main board. Attempt to enter the panel's system menu during startup to access the transfer or service mode.

Perform a complete project re-download via ProTool. If the panel cannot be accessed, a factory reset may be required. Persistent boot loops after re-download indicate a main board fault requiring repair or component replacement.

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