Siemens 6AV6344-2AD24-0MG6 OP 177B

€ 1.995,00

SKU: 6AV6344-2AD24-0MG6 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6344-2AD24-0MG6 is an operator panel belonging to the SIMATIC OP 177B family, part of the SIMATIC HMI series developed by Siemens for industrial human-machine interface applications. This unit features a color display and is designed for mid-range panel applications requiring robust visualization and control capabilities. It is configured for operation with the WinCC flexible runtime environment and is compatible with a wide range of Siemens PLC families.

The OP 177B 6AV6344-2AD24-0MG6 is equipped with a 5.7-inch STN color display with a resolution of 320 x 240 pixels (QVGA), offering clear process visualization. The panel provides MPI/PROFIBUS DP and RS-422/RS-485 communication interfaces, enabling direct integration with SIMATIC S7-200, S7-300, and S7-400 controllers. It includes a membrane keypad with function keys for operator input, 512 KB user memory for project data, and supports alarm logging, recipe management, and trend display functions. The unit operates on a 24 V DC supply and is rated IP65 at the front panel for protection against dust and water ingress.

The OP 177B is widely deployed in manufacturing, process automation, and machine building applications where a compact, reliable operator interface is required. It is commonly found on packaging machinery, conveyor systems, pump stations, and general-purpose industrial machines. Its compatibility with the SIMATIC S7 controller family and support for WinCC flexible make it a practical choice for system integrators working within Siemens automation environments.

Technical Specifications

Display Size	5.7 inch
Display Type	STN color
Display Resolution	320 x 240 pixels (QVGA)
Display Colors	256 colors
Input/Operating Voltage	24 V DC
Power Consumption	Max. 9 W
User Memory	512 KB
Communication Interface	MPI/PROFIBUS DP, RS-422/RS-485
IP Rating (Front)	IP65
IP Rating (Rear)	IP20
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
Mounting	Panel mounting
Certifications	CE, UL, cULus
Series/Product Family	SIMATIC OP 177B

Common Error Codes & System Events

Event ID: 10000: Configuration error detected during startup; project data on the panel is inconsistent or corrupt.
Reload the WinCC flexible project to the panel using the engineering station. Verify project integrity before transfer.
Event ID: 20000: Communication error with the configured PLC; the panel cannot establish a connection to the controller.
Check MPI/PROFIBUS DP cable connections and termination resistors. Verify the PLC address and baud rate settings match the panel configuration.
Event ID: 40000: Tag read/write error; the panel is unable to read from or write to a configured PLC tag.
Verify the PLC tag address exists and is accessible. Check PLC program and ensure the data block or memory area is not write-protected.
Event ID: 50000: System memory low; available runtime memory on the panel is insufficient for current operations.
Reduce the number of active screens or objects. Optimize the WinCC flexible project to reduce memory usage and reload to the panel.
Event ID: 60000: Alarm buffer overflow; the number of pending alarms exceeds the buffer capacity.
Acknowledge and clear pending alarms. Review alarm configuration to reduce unnecessary alarm triggers and increase acknowledgement frequency.
Event ID: 70000: Recipe data error; recipe records cannot be read or written correctly.
Check recipe configuration in WinCC flexible. Verify that the recipe data records are not corrupt and reload the project if necessary.
Event ID: 80000: Operator panel hardware fault detected; internal self-test has identified a hardware error.
Restart the panel. If the fault persists, the unit may require repair or replacement of internal components.

Frequently Asked Questions

Which PLC families are compatible with the OP 177B 6AV6344-2AD24-0MG6?

The OP 177B is compatible with SIMATIC S7-200, S7-300, and S7-400 PLC families via MPI or PROFIBUS DP. It also supports communication with S7-1200 and certain third-party controllers through RS-422/RS-485 serial interfaces.

What software is required to program and configure this panel?

The OP 177B is configured using Siemens WinCC flexible 2008 or later. Projects are created on an engineering PC and transferred to the panel via MPI, PROFIBUS DP, or a USB-to-serial adapter.

What is the display type and resolution of the 6AV6344-2AD24-0MG6?

This panel features a 5.7-inch STN color display with a resolution of 320 x 240 pixels (QVGA) and supports up to 256 colors.

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

The front panel of the OP 177B is rated IP65, providing protection against dust ingress and low-pressure water jets. The rear of the unit is rated IP20.

Can the OP 177B be used as a direct replacement for older SIMATIC OP panels?

The OP 177B can serve as a functional replacement for older SIMATIC OP7 and OP17 panels in many applications, though project migration using WinCC flexible may be required to adapt existing configurations.

Troubleshooting

Display remains blank after power on

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

Restore the 24 V DC supply to within specification. If voltage is correct and the display remains blank, the internal power supply or backlight may have failed and the unit should be sent for repair.

Panel fails to communicate with the PLC

Check the MPI or PROFIBUS DP cable for continuity and correct termination at both ends of the network. Verify that the panel station address does not conflict with other devices on the network.

Replace or re-terminate the communication cable. Correct the station address in the panel startup menu and ensure the baud rate matches the PLC network settings.

Touchscreen or keypad inputs are not responding correctly

Check for physical damage to the membrane keypad. Perform a keypad test via the panel's system settings menu to identify which keys are unresponsive.

If individual keys are faulty, the membrane keypad assembly may need replacement. Clean the keypad surface and ensure no moisture or debris is causing contact issues.

Project transfer from engineering PC fails

Verify the communication cable between the PC and panel is correctly connected and that the correct COM port and transfer settings are selected in WinCC flexible. Check that the panel is in transfer mode.

Set the panel to transfer mode via the Start Center menu. Ensure the PC adapter (e.g., PC Adapter USB) drivers are correctly installed and the baud rate matches between PC and panel.

Panel displays 'No project' message after startup

The panel memory may have been cleared or the project transfer was incomplete. Check the panel's internal memory via the system settings menu.

Reload the WinCC flexible project to the panel from the engineering station. Ensure the transfer completes without interruption and verify the project is stored correctly before restarting.

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