Siemens 6AV6343-0AA04-0MA6 OP 177B

€ 1.995,00

SKU: 6AV6343-0AA04-0MA6 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6343-0AA04-0MA6 is an OP 177B operator panel belonging to the SIMATIC HMI family of human-machine interface devices. This unit provides a monochrome graphical display and is designed for machine-level visualization and operator control tasks. It is part of the Comfort and Mobile Panel generation predecessor line, offering reliable panel-based HMI functionality for industrial environments.

The OP 177B features a 5.7-inch STN monochrome display with a resolution of 320 x 240 pixels and supports both touch and key-based operation through its integrated membrane keypad. It communicates via MPI, PROFIBUS DP, and Ethernet interfaces, enabling flexible integration into Siemens S7-300 and S7-400 PLC environments. The panel is configured using WinCC flexible 2008 engineering software and includes 512 KB user memory for project data, with an operating temperature range of 0 to 50 degrees Celsius.

The OP 177B is widely deployed in manufacturing, automotive, food and beverage, and process industries where robust panel-based operator interfaces are required at the machine level. Its combination of keypad and touch input makes it suitable for environments where gloved operation or harsh conditions demand physical key actuation. The compact form factor and broad communication support make it a versatile choice for retrofitting and new machine installations alike.

Technical Specifications

Display Size	5.7 inch
Display Type	STN monochrome
Display Resolution	320 x 240 pixels
Input/Operating Voltage	24 V DC
Power Consumption	Max. 12 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (RJ45)
User Memory	512 KB
Operating Temperature	0 to 50 °C
Storage Temperature	-20 to 60 °C
Relative Humidity	10 to 90% (non-condensing)
IP Rating (Front)	IP65
IP Rating (Rear)	IP20
Mounting	Panel mounting
Series/Product Family	SIMATIC HMI OP 177B
Engineering Software	WinCC flexible 2008

Common Error Codes and System Events

Event ID: 10000: Configuration error detected during startup; project data may be corrupted or incompatible with the panel firmware version.
Re-transfer the project using WinCC flexible 2008. Ensure the firmware version on the panel matches the project configuration.
Event ID: 10001: No project found on the panel; the device has started without a valid user project loaded.
Transfer a valid project to the panel via Ethernet or MPI/PROFIBUS using WinCC flexible 2008 transfer function.
Event ID: 20000: Communication error on MPI/PROFIBUS DP interface; the panel cannot establish a connection to the configured PLC.
Check MPI/PROFIBUS cable connections, verify bus address settings, and confirm the PLC is powered and in RUN mode.
Event ID: 20001: Ethernet communication timeout; the panel has lost connection to the PLC or network device configured via TCP/IP.
Verify Ethernet cable integrity, check IP address configuration on both panel and PLC, and confirm network switch operation.
Event ID: 40000: Internal device error; a hardware fault has been detected within the panel.
Perform a panel restart. If the error persists, back up the project and contact Siemens technical support or arrange for unit repair.
Event ID: 50000: Backup battery low or missing; the real-time clock and retentive data may not be maintained during power loss.
Replace the internal backup battery with the correct Siemens-specified replacement. Refer to the OP 177B operating instructions for battery access procedure.
Event ID: 60000: Firmware update error; the firmware transfer to the panel was interrupted or the firmware file is incompatible.
Restart the panel in transfer mode and re-initiate the firmware update using ProSave or WinCC flexible 2008 with the correct firmware version for the 6AV6343-0AA04-0MA6.

Frequently Asked Questions

Which engineering software is required to configure the OP 177B (6AV6343-0AA04-0MA6)?

The OP 177B is configured using Siemens WinCC flexible 2008. Projects are transferred to the panel via MPI, PROFIBUS DP, or Ethernet connection.

Which PLCs are compatible with the OP 177B?

The OP 177B is primarily designed for use with Siemens SIMATIC S7-300 and S7-400 PLCs via MPI or PROFIBUS DP. Ethernet-based communication also allows connectivity to S7-300/400 with Ethernet-capable CPU modules.

What is the supply voltage for the 6AV6343-0AA04-0MA6?

The panel operates on 24 V DC. The supply must be within the specified tolerance range as defined in the OP 177B operating instructions.

Does the OP 177B support touch input?

Yes, the OP 177B supports both touch screen input and physical membrane keypad operation, allowing use in environments where gloved or tactile key operation is preferred.

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

The front panel of the OP 177B carries an IP65 protection rating, making it resistant to dust ingress and low-pressure water jets when correctly installed in a panel cutout.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the panel power connector. Check that the supply is within tolerance and that the connector is fully seated.

Correct any supply voltage issues. If voltage is confirmed correct and the display remains blank, the internal power supply or backlight may have failed and the unit should be sent for repair.

Panel cannot communicate with the S7 PLC via MPI or PROFIBUS

Verify the MPI/PROFIBUS cable is connected to the correct port and that the bus termination resistors are properly set at both ends of the network. Check the bus address configured on the panel matches the project settings.

Correct cable connections and termination. Adjust the bus address on the panel via the Start Center settings menu to match the project configuration, then restart the panel.

Project transfer fails when attempting to download from WinCC flexible 2008

Confirm the transfer mode is active on the panel (accessible via Start Center > Transfer). Check that the communication interface selected in WinCC flexible matches the physical connection being used (Ethernet or MPI/PROFIBUS).

Activate transfer mode on the panel, ensure correct interface settings in WinCC flexible 2008, and retry the transfer. Check firewall settings if using Ethernet transfer.

Touchscreen input is inaccurate or unresponsive

Check the touchscreen surface for contamination or physical damage. Verify that the touch calibration has not been corrupted by accessing the calibration routine in the panel's Start Center.

Clean the touchscreen surface with a soft, dry cloth. Run the touch calibration routine from the Start Center. If the touchscreen remains unresponsive, the touch overlay may require replacement.

Real-time clock resets to default time after every power cycle

This indicates the internal backup battery is discharged or missing. The battery maintains the real-time clock and retentive memory during power-off periods.

Replace the internal backup battery with the Siemens-specified replacement cell. Refer to the OP 177B hardware manual for the correct battery type and replacement procedure.

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