
Siemens 6AV5040-1BF12-0BA0 SIMATIC OP 40
€ 2.215,00
The Siemens 6AV5040-1BF12-0BA0 is an Operator Panel (OP 40) belonging to the SIMATIC HMI family, designed for operator control and monitoring tasks in industrial automation environments. This unit provides a compact, panel-mounted interface for machine-level visualization and process control, communicating directly with Siemens SIMATIC PLCs. The OP 40 series was developed for applications requiring reliable text-based operator interaction without the complexity of full graphical displays.
The OP 40 features a multi-line LCD text display capable of showing process values, alarm messages, and operator prompts in a structured format. It supports communication via the MPI (Multi-Point Interface) protocol for direct integration with SIMATIC S5 and S7 PLC families. The unit is configured using ProTool software and supports function keys for direct operator input, recipe management, and alarm logging. The housing is rated for front-panel mounting with a defined IP65 protection rating on the front face, making it suitable for use in control cabinet doors.
The SIMATIC OP 40 is widely used in manufacturing, packaging, and process industries where straightforward machine-level operator interaction is required. It is commonly found on standalone machines, conveyor systems, and production lines where operators need to monitor process variables and acknowledge alarms without requiring a full SCADA or graphical HMI solution. Its compact form factor and robust construction make it suitable for integration into existing control cabinet installations.
Technical Specifications
| Display Type | LCD text display |
|---|---|
| Display Lines | 4 lines |
| Characters per Line | 20 characters |
| Input/Operating Voltage | 24 V DC |
| Communication Interface | MPI (Multi-Point Interface) |
| Configuration Software | ProTool |
| IP Protection Rating (Front) | IP65 |
| IP Protection Rating (Rear) | IP20 |
| Mounting | Panel mounting |
| Operating Temperature | 0 °C to +50 °C |
| Storage Temperature | -20 °C to +60 °C |
| Relative Humidity | 10% to 90% (non-condensing) |
| Certifications | CE, UL |
| Series/Product Family | SIMATIC OP 40 |
Common Error Codes & System Events
- Event ID: 10000
- Communication error between the OP panel and the connected PLC. The MPI connection has been interrupted or cannot be established.
Check MPI cable connections and termination resistors. Verify PLC MPI address settings match the OP configuration. Restart both devices if necessary. - Event ID: 10001
- Configuration download error. The project data transferred to the OP panel is incompatible or corrupted.
Re-download the ProTool project to the OP panel. Verify the ProTool project version is compatible with the OP 40 firmware version. - Event ID: 10002
- No project loaded. The OP panel has started but no valid configuration project is present in memory.
Connect a PC with ProTool software and download a valid project to the panel via the MPI or serial interface. - Event ID: 10003
- PLC not responding. The OP panel cannot receive data from the configured PLC within the timeout period.
Verify PLC is powered and running. Check MPI bus address conflicts. Inspect cable integrity and connector pins. - Event ID: 10004
- Memory overflow. The alarm buffer or data record memory on the OP panel is full.
Acknowledge and clear pending alarms. Review alarm configuration to reduce buffer size requirements or increase acknowledgement frequency. - Event ID: 10005
- Firmware version mismatch. The loaded project was created with a ProTool version incompatible with the current panel firmware.
Update the OP panel firmware to the version required by the ProTool project, or recompile the project using a compatible ProTool version. - Event ID: 10006
- Internal hardware fault detected. A self-diagnostic check has identified a hardware error within the OP panel.
Power cycle the unit. If the fault persists, the panel requires repair or replacement of internal components.
Frequently Asked Questions
Which PLC families are compatible with the SIMATIC OP 40?
The OP 40 is compatible with Siemens SIMATIC S5 and S7 PLC families via the MPI interface. It can also communicate with S5 PLCs using the appropriate serial interface configuration.
What software is used to configure the OP 40?
The OP 40 is configured using Siemens ProTool software. Projects are compiled in ProTool and downloaded to the panel via the MPI or serial connection.
What is the supply voltage for the 6AV5040-1BF12-0BA0?
The unit operates on a 24 V DC supply voltage, which is the standard supply for SIMATIC operator panels of this generation.
What is the front panel protection rating of the OP 40?
The front face of the OP 40 achieves an IP65 protection rating when correctly installed in a panel cutout with the supplied seal, providing protection against dust and water jets.
Can the OP 40 display graphical content?
No, the OP 40 is a text-based operator panel and does not support graphical display content. It is limited to alphanumeric text across its 4-line, 20-character LCD display.
Troubleshooting
Display remains blank after power on
Measure 24 V DC at the power supply connector. Check internal fuse if accessible. Observe whether the backlight activates briefly on startup.
Verify the 24 V DC supply is within tolerance. If supply is correct and display remains blank, the LCD or internal power regulation circuit may be faulty and the unit requires repair or replacement.
OP panel shows communication error immediately after startup
Check MPI cable connections at both the OP panel and PLC. Verify bus termination resistors are correctly placed at both ends of the MPI segment. Confirm MPI address settings in the ProTool project match the physical configuration.
Correct any address conflicts, replace damaged MPI cables, and ensure bus termination is applied only at the physical ends of the MPI segment. Re-download the project if configuration changes are made.
Function keys do not respond to operator input
Check whether the panel is in transfer mode or displaying a system screen that does not process key inputs. Inspect the keypad membrane for physical damage or contamination.
Exit transfer mode by cycling power or completing the transfer operation. If keys are physically damaged, the keypad membrane assembly requires replacement.
Project download fails from ProTool PC
Verify the serial or MPI connection between the PC and OP panel. Confirm the PC adapter (e.g., PC Adapter MPI) is correctly installed and the COM port settings match. Check that the OP panel is in transfer mode.
Set the OP panel to transfer mode via the system menu. Reinstall the PC adapter driver if necessary. Ensure ProTool project settings match the panel type and firmware version before retrying the download.
Alarms are not being acknowledged or cleared
Check whether the alarm acknowledgement is configured to require PLC-side confirmation. Verify the PLC program is processing the acknowledgement bit correctly.
Review the alarm configuration in ProTool to confirm acknowledgement type settings. Ensure the PLC program correctly resets alarm trigger bits and processes acknowledgement signals from the OP panel.
| Condition | Repair, Used, Refurbished, New in box (sealed) |
|---|
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