Siemens 6AV6355-1CA47-7CA3 OP 177B

€ 3.495,00

SKU: 6AV6355-1CA47-7CA3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6355-1CA47-7CA3 is an operator panel belonging to the SIMATIC HMI OP 177B series, designed for machine-level human-machine interface applications. This unit is part of Siemens' SIMATIC HMI product line and provides a combined touch and key-based interface for process visualization and control. The OP 177B series is engineered for demanding industrial environments where reliable operator interaction is essential.

The 6AV6355-1CA47-7CA3 features a 5.7-inch STN color display with a resolution of 320 x 240 pixels (QVGA), supporting up to 256 colors. It is equipped with both a resistive touch screen and membrane function keys, providing flexible operator input options. The panel supports MPI, PROFIBUS DP, and RS-422/RS-485 communication interfaces, enabling integration with a wide range of Siemens and third-party controllers. It operates on a 24 V DC supply and is configured using WinCC flexible engineering software.

The OP 177B is widely deployed in manufacturing, automotive, food and beverage, and process industries for local machine control and monitoring tasks. Its compact panel-mount design and dual-interface capability make it suitable for integration into control cabinets and machine panels where space is limited. The combination of touch and key input, along with robust communication options, makes it appropriate for applications requiring both intuitive operation and precise key-based control.

Technical Specifications

Display Size	5.7 inch
Display Resolution	320 x 240 pixels (QVGA)
Display Type	STN color
Display Colors	256 colors
Touch Technology	Resistive touchscreen
Input Keys	Membrane function keys
Input/Operating Voltage	24 V DC
Power Consumption	Max. 9 W
Communication Interface	MPI, PROFIBUS DP, RS-422/RS-485
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), IP20 (rear)
Mounting	Panel mounting
Certifications	CE, UL, cULus
Engineering Software	WinCC flexible 2005 or higher

Common Error Codes and System Events

Event ID: 10000: Configuration error detected on startup; the loaded project is incompatible or corrupt.
Reload the project using WinCC flexible. Verify the project was compiled for the correct HMI device type and firmware version.
Event ID: 20000: Communication error with the configured PLC or controller; connection cannot be established.
Check MPI/PROFIBUS cable connections and termination resistors. Verify the PLC address and baud rate settings match the HMI configuration.
Event ID: 40000: Tag read/write error; the HMI cannot access a configured PLC tag.
Verify the tag address in WinCC flexible matches the actual PLC data block or memory address. Check PLC program for address changes.
Event ID: 50000: Recipe data error; recipe records cannot be read from or written to the storage medium.
Check available memory on the internal flash or connected memory card. Reformat the memory card if necessary and re-transfer recipe data.
Event ID: 60000: Alarm buffer overflow; the number of pending alarms exceeds the buffer capacity.
Acknowledge and clear active alarms. Review alarm configuration to reduce simultaneous alarm triggers or increase buffer size in the project settings.
Event ID: 70000: System memory low; available runtime memory is insufficient for current operations.
Reduce the number of active screens, animations, or simultaneous processes. Simplify the project configuration and reload the optimized project.
Event ID: 80000: Firmware update error; firmware transfer was interrupted or the firmware file is invalid.
Restart the firmware update procedure using ProSave or WinCC flexible. Ensure the correct firmware version for the 6AV6355-1CA47-7CA3 is used and the power supply is stable during transfer.

Frequently Asked Questions

What communication interfaces does the OP 177B 6AV6355-1CA47-7CA3 support?

This panel supports MPI, PROFIBUS DP, and RS-422/RS-485 interfaces, allowing connection to Siemens S7-300, S7-400, and compatible third-party controllers.

Which engineering software is required to configure this HMI panel?

The OP 177B is configured using Siemens WinCC flexible 2005 or a later version. Projects are transferred to the device via MPI, PROFIBUS, or USB connection using ProSave or WinCC flexible.

What is the operating voltage for the 6AV6355-1CA47-7CA3?

The panel operates on a 24 V DC supply voltage. Ensure the power supply is within the specified tolerance range to prevent operational faults.

Is the OP 177B compatible with S7-1200 or S7-1500 PLCs?

The OP 177B is primarily designed for use with S7-300 and S7-400 PLCs via MPI or PROFIBUS DP. Compatibility with S7-1200 and S7-1500 is limited and generally not recommended; TIA Portal-based HMI panels are preferred for those controllers.

What is the front panel protection rating of this unit?

The front panel of the OP 177B carries an IP65 protection rating, making it suitable for installation in environments where dust and water jets may be present.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the power connector. Check that the voltage is within the specified tolerance. Inspect the internal fuse if accessible.

Correct any supply voltage issues. If the supply is confirmed good and the display remains blank, the internal power supply board or backlight inverter may require replacement or professional repair.

HMI fails to establish communication with the PLC

Verify the MPI or PROFIBUS cable is correctly connected and terminated at both ends. Check the HMI and PLC address settings in WinCC flexible and in the PLC hardware configuration.

Correct address mismatches and ensure baud rates are consistent across all devices on the network. Replace the communication cable if continuity testing reveals a fault.

Touchscreen does not respond or registers incorrect touch positions

Check whether the touchscreen is physically damaged or contaminated. Attempt to recalibrate the touchscreen through the HMI Control Panel in the Start Center menu.

Clean the touchscreen surface with a soft, dry cloth. Perform a touchscreen calibration via the device's Start Center. If calibration fails repeatedly, the touchscreen assembly may need replacement.

Project transfer from WinCC flexible fails or times out

Verify the communication cable and interface settings in WinCC flexible match the physical connection (MPI address, baud rate, or USB driver installation). Confirm the HMI is in Transfer mode.

Set the HMI to Transfer mode via the Start Center. Reinstall the PC adapter driver if using an MPI/USB adapter. Try transferring via an alternative interface if available.

HMI displays 'No project' or boots to Start Center after power cycle

The internal flash memory may have been corrupted, or the project was not fully transferred. Check the last transfer log in WinCC flexible for errors.

Re-transfer the compiled project to the HMI using WinCC flexible or ProSave. If the problem persists, perform a factory reset via the Start Center and re-transfer the project and firmware.

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