Siemens 6AV6343-3AA14-0MB6 OP 177B

€ 1.995,00

SKU: 6AV6343-3AA14-0MB6 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6343-3AA14-0MB6 is an OP 177B operator panel belonging to the SIMATIC HMI family, designed for machine-level visualization and operator control tasks. This unit features a monochrome STN display and is part of the Comfort/Mobile Panel generation targeted at mid-range HMI applications. It provides a robust and compact interface solution for integration into control cabinets and machine fronts.

The OP 177B (6AV6343-3AA14-0MB6) is equipped with a 5.7-inch STN monochrome display with a resolution of 320 x 240 pixels (QVGA), offering clear readability in industrial environments. It supports MPI and PROFIBUS DP communication interfaces for direct connection to Siemens S7-200, S7-300, and S7-400 PLCs, as well as serial interfaces for third-party controller connectivity. The panel runs on WinCC flexible runtime software and includes configurable function keys, a membrane keypad, and non-volatile flash memory for project storage. The unit operates on 24 V DC supply voltage and carries CE and UL certifications.

The OP 177B is widely deployed in machine building, packaging machinery, conveyor systems, and process automation where a reliable, keypad-operated HMI is required without the need for a touchscreen. Its compact form factor and compatibility with the SIMATIC S7 controller family make it a practical choice for OEMs and system integrators working with Siemens automation architectures. The panel is particularly suited for applications requiring robust operator input via physical keys in environments with vibration or where gloved operation is common.

Technical Specifications

Display Size	5.7 inch
Display Type	STN monochrome
Display Resolution	320 x 240 pixels (QVGA)
Display Colors	Monochrome (blue-mode)
Input/Operating Voltage	24 V DC
Power Consumption	Max. 12 W
Communication Interface	MPI, PROFIBUS DP, RS-422/485 (serial)
Memory	Flash memory for project storage
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, cULus
Series/Product Family	SIMATIC HMI OP 177B

Common Error Codes and System Events

Event ID: 10000: Configuration error detected during startup; the loaded project is incompatible with the panel firmware version.
Reload a compatible project using WinCC flexible. Ensure the project was compiled for the OP 177B and that firmware versions match.
Event ID: 10001: Communication link to the PLC has been interrupted or cannot be established.
Check MPI or PROFIBUS DP cable connections and termination resistors. Verify the PLC address settings in the project match the physical configuration.
Event ID: 20000: Project download failed; transfer was interrupted or the panel memory is insufficient.
Restart the panel in transfer mode and retry the download. Ensure the project size does not exceed available flash memory.
Event ID: 40000: System memory low; available runtime memory is insufficient to execute the current project.
Reduce the number of active screens or objects in the project. Restart the panel to clear runtime memory.
Event ID: 50000: Illegal tag address; a configured tag references an address that does not exist in the connected PLC.
Review and correct the tag addresses in WinCC flexible. Ensure all tags reference valid PLC data areas and addresses.
Event ID: 60000: Operator input rejected; a value entered by the operator is outside the configured limit range for the tag.
Check the high and low limit settings for the affected tag in the WinCC flexible project and adjust as required.
Event ID: 70000: Recipe data error; a recipe record could not be read or written correctly.
Verify the recipe configuration in WinCC flexible. Check that the associated PLC tags are accessible and correctly mapped.

Frequently Asked Questions

Which PLCs are compatible with the OP 177B (6AV6343-3AA14-0MB6)?

The OP 177B supports direct communication with Siemens S7-200, S7-300, and S7-400 PLCs via MPI or PROFIBUS DP. It also supports serial communication with third-party controllers using RS-422/485 interfaces.

What software is used to configure and program the OP 177B?

The OP 177B is configured using Siemens WinCC flexible software. Projects are compiled in WinCC flexible and transferred to the panel via MPI, PROFIBUS DP, or a serial PC/PPI cable.

What is the supply voltage for the 6AV6343-3AA14-0MB6?

The panel requires a 24 V DC supply voltage. Ensure the power supply can deliver sufficient current, as the panel consumes up to 12 W.

What is the front panel protection rating of the OP 177B?

The front panel of the OP 177B is rated IP65, making it suitable for use in environments where dust and water jets may be present.

Can the OP 177B be used with PROFIBUS DP networks?

Yes, the OP 177B supports PROFIBUS DP communication, allowing it to be integrated into existing PROFIBUS networks alongside other Siemens SIMATIC devices.

Troubleshooting

Display remains blank after power is applied

Check the 24 V DC supply voltage at the panel power connector. Verify polarity and measure actual voltage under load. Inspect the internal fuse if accessible.

Ensure the supply voltage is within the 24 V DC nominal range. Replace any blown fuse. If the power supply is confirmed good and the display remains blank, the internal power supply board or display unit may require replacement.

Panel shows 'No connection to PLC' or communication error on startup

Verify the MPI or PROFIBUS DP cable is correctly connected and that bus termination is applied at both ends of the network. Check that the PLC address configured in the project matches the actual PLC station address.

Correct cable connections and termination. Adjust the PLC address in the WinCC flexible project to match the physical configuration and re-download the project to the panel.

Project download fails or transfer mode cannot be activated

Confirm the panel is set to transfer mode (accessible via the Start Center or by holding the appropriate key combination during boot). Check the communication cable between the PC and the panel.

Restart the panel and enter transfer mode manually via the Start Center menu. Use a known-good MPI or serial cable. Ensure the correct COM port and transfer settings are selected in WinCC flexible.

Touchscreen or keypad inputs are not responding correctly

For keypad issues, inspect the membrane keypad connector internally for corrosion or damage. Test each function key systematically in a diagnostic screen if available in the project.

Clean or replace the membrane keypad assembly if physical damage or contamination is found. Recalibrate any pointing device settings if applicable. If the issue persists, the keypad interface board may need replacement.

Panel reboots repeatedly or freezes during operation

Check for unstable 24 V DC supply voltage, particularly voltage dips caused by other loads on the same supply rail. Review the project for memory-intensive screens or excessive tag polling rates.

Stabilize the power supply by using a dedicated 24 V DC rail for the HMI panel. Optimize the WinCC flexible project by reducing polling cycles and simplifying complex screens. Update the panel firmware to the latest compatible version if reboots persist.

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