Siemens 6AV6344-2AD14-0CG6 OP 177B

€ 1.995,00

SKU: 6AV6344-2AD14-0CG6 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6344-2AD14-0CG6 is an OP 177B operator panel belonging to the SIMATIC HMI series, designed for machine-level visualization and operator control in industrial automation environments. This unit provides a compact, panel-mounted interface for process monitoring and control, integrating directly with Siemens SIMATIC PLCs and third-party controllers. It is part of the established SIMATIC HMI Basic Panels generation, offering reliable performance in demanding production settings.

The OP 177B features a 5.7-inch STN display with a resolution of 320 x 240 pixels (QVGA) supporting 256 colors, combined with a membrane keypad for operator input. It supports MPI and PROFIBUS DP communication interfaces, enabling direct connection to S7-200, S7-300, and S7-400 PLCs, as well as connectivity via RS-422/RS-485 serial interfaces. The panel is configured using WinCC flexible 2008 engineering software and offers 512 KB user memory for project data, with an operating voltage of 24 V DC.

The OP 177B is widely deployed in machine building, automotive manufacturing, food and beverage processing, and packaging industries where a robust, mid-range HMI solution is required. Its membrane keypad design makes it suitable for environments where touchscreen operation is impractical due to gloves or contamination. The panel's PROFIBUS DP connectivity and broad PLC compatibility make it a versatile choice for retrofitting existing installations or integrating into new machine control panels.

Technical Specifications

Display Size	5.7 inch
Display Type	STN LCD
Display Resolution	320 x 240 pixels (QVGA)
Display Colors	256 colors
Input Voltage	24 V DC
Power Consumption	Max. 8 W
Communication Interface	MPI, PROFIBUS DP, RS-422/RS-485
User Memory	512 KB
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C 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 & System Events

Event ID: 10000: Configuration error detected on startup; the loaded project is incompatible with the panel firmware version.
Re-transfer the project using a compatible version of WinCC flexible 2008. Ensure firmware and project version match.
Event ID: 20000: Communication error with the configured PLC; the panel cannot establish a connection to the controller.
Check MPI or PROFIBUS DP cable connections and termination resistors. Verify PLC address settings match the project configuration.
Event ID: 40000: Tag update error; one or more process tags cannot be read from the PLC.
Verify PLC is in RUN mode and the tag addresses defined in the project are correct and accessible.
Event ID: 50000: System memory low; available memory for runtime operation is insufficient.
Reduce the project size by removing unused screens, tags, or alarms. Transfer the optimized project to the panel.
Event ID: 60000: Transfer mode active; the panel is waiting for a project download from the engineering PC.
Transfer the project from WinCC flexible 2008, or press ESC on the panel to exit transfer mode and resume normal operation.
Event ID: 70000: Internal device error; a hardware fault has been detected within the panel.
Perform a panel restart. If the error persists, the unit may require repair or replacement of internal components.
Event ID: 80000: Recipe data error; recipe records cannot be read or written correctly.
Check recipe configuration in the project. Verify that recipe data memory has not been corrupted; re-transfer the project if necessary.

Frequently Asked Questions

Which PLCs are compatible with the OP 177B (6AV6344-2AD14-0CG6)?

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

What engineering software is required to configure this panel?

The OP 177B is configured using Siemens WinCC flexible 2008. Projects are transferred to the panel via MPI, PROFIBUS DP, or a USB-to-serial adapter connected to the RS-232 service interface.

What is the supply voltage for the 6AV6344-2AD14-0CG6?

The panel operates on 24 V DC. The supply must be within the permissible voltage tolerance range as specified in the device manual, typically 19.2 V DC to 28.8 V DC.

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.

Does the OP 177B support alarm logging or data recording?

The OP 177B supports alarm logging and recipe management within the limits of its 512 KB user memory. Extended data logging to external memory cards is not supported on this model.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the panel's power connector. Check that the supply is within the 19.2 V to 28.8 V DC range. Inspect the internal fuse if accessible.

Correct the supply voltage if out of range. Replace any blown internal fuse with the correct rating. If the display backlight has failed, the panel will require internal repair or backlight replacement.

Panel cannot communicate with the PLC

Verify the MPI or PROFIBUS DP cable is correctly connected and terminated at both ends. Check that the PLC address and baud rate configured in the project match the physical network settings.

Replace or reseat the communication cable. Correct the PLC address and baud rate in the WinCC flexible project and re-transfer. Ensure bus termination resistors are enabled only at the two physical ends of the network.

Panel continuously boots into transfer mode

The panel enters transfer mode automatically if no valid project is stored, or if the transfer mode has been manually activated. Check the startup settings in the panel's loader menu.

Transfer a valid project from WinCC flexible 2008 to the panel. If the panel enters transfer mode unexpectedly, check the startup configuration in the Control Panel settings accessible from the loader.

Touchscreen or keypad inputs are not responding correctly

For keypad issues, inspect the membrane keypad for physical damage or contamination beneath the keys. Check whether the fault occurs on specific keys or all keys.

Clean the keypad surface. If specific keys are unresponsive, the membrane keypad assembly may need replacement. For persistent issues across all keys, a hardware fault in the input controller may require professional repair.

Project transfer fails or is interrupted

Check the communication cable between the engineering PC and the panel (MPI adapter or PC/PPI cable). Verify that WinCC flexible 2008 is configured with the correct interface and transfer settings.

Replace the transfer cable or adapter if faulty. Ensure the correct COM port and baud rate are selected in WinCC flexible. Disable any PC firewall or antivirus software that may be blocking the transfer process.

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