Siemens 6AV6355-1CA47-7DL7 OP 177B

€ 3.495,00

SKU: 6AV6355-1CA47-7DL7 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6355-1CA47-7DL7 is an Operator Panel (OP 177B) belonging to the SIMATIC HMI series, designed for machine-level human-machine interface applications. This unit provides a monochrome or color display with touch and key-based operation, serving as a compact yet capable panel for process visualization and control. As part of the SIMATIC HMI comfort and mobile panel lineage, it integrates seamlessly into Siemens automation environments.

The OP 177B features a 5.7-inch STN display and supports both MPI/PROFIBUS DP and Ethernet communication interfaces, enabling flexible integration with SIMATIC S7 PLCs and other controllers. It is configured using WinCC flexible engineering software and supports recipe management, alarm logging, and trend display functions. The panel operates on 24 V DC and is rated to IP65 on the front face, making it suitable for panel-mount installations in industrial enclosures.

The OP 177B is widely deployed in manufacturing, automotive, food and beverage, and process industries where a compact operator interface is required at the machine level. Its combination of function keys and touchscreen input makes it suitable for applications requiring both guided operator interaction and direct touch control. The robust front panel protection and wide operating temperature range allow use in demanding production environments.

Technical Specifications

Display Size	5.7 inch
Display Type	STN LCD
Display Colors	256 colors
Touch Technology	Resistive touchscreen with membrane keypad
Input/Operating Voltage	24 V DC
Power Consumption	Max. 12 W
Communication Interface	MPI/PROFIBUS DP, Ethernet (RJ45)
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
Series/Product Family	SIMATIC HMI OP 177B
Engineering Software	WinCC flexible 2008 or later

Common Error Codes & System Events

Event ID: 10000: Connection to PLC interrupted or communication timeout detected.
Check MPI/PROFIBUS or Ethernet cable connections, verify PLC address settings, and confirm the PLC is in RUN mode.
Event ID: 10001: Connection to PLC re-established after a previous communication failure.
No immediate action required. Monitor for recurring disconnections and inspect cable integrity and network configuration.
Event ID: 20000: Project download failed or project data is corrupted on the panel.
Re-download the project from WinCC flexible, ensure compatibility between the project version and panel firmware, and check available memory.
Event ID: 40000: Panel operating system or firmware version mismatch detected.
Update the panel firmware using ProSave or WinCC flexible to match the required version for the loaded project.
Event ID: 50000: Internal memory or data storage error on the panel.
Perform a panel reset, check available internal memory, and if the issue persists, consider replacing the internal memory module or the panel unit.
Event ID: 60000: Recipe data read/write error occurred during runtime.
Verify recipe configuration in WinCC flexible, check that the data medium (internal memory or memory card) is not full or write-protected.
Event ID: 70000: Alarm buffer overflow — alarm log capacity exceeded.
Acknowledge and clear pending alarms, increase alarm buffer size in the WinCC flexible project settings, or archive alarms to external storage.

Frequently Asked Questions

Which engineering software is required to configure the OP 177B?

The OP 177B is configured using Siemens WinCC flexible 2008 or a compatible later version. ProSave can be used for firmware updates and backup/restore operations.

What communication interfaces does the 6AV6355-1CA47-7DL7 support?

This panel supports MPI/PROFIBUS DP via a 9-pin Sub-D connector and Ethernet (10/100 Mbit/s) via an RJ45 connector, allowing connection to SIMATIC S7-200, S7-300, and S7-400 PLCs.

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

The OP 177B has limited compatibility with S7-1200 and S7-1500 PLCs via Ethernet. Full functionality is best achieved with S7-300 and S7-400 controllers using MPI or PROFIBUS DP.

What is the front panel protection rating of this unit?

The front panel of the OP 177B is rated IP65, making it resistant to dust ingress and low-pressure water jets, suitable for panel-mount installations in industrial environments.

Can the OP 177B be operated via touchscreen alone?

The OP 177B supports both resistive touchscreen input and physical membrane function keys, allowing operation via touch alone or via the keypad, depending on the project configuration.

Troubleshooting

Display remains blank after power on

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

Restore correct 24 V DC supply. If voltage is correct and display remains blank, the internal backlight or power supply board may be faulty and the panel should be sent for repair or replacement.

Panel shows 'No project' or boots to transfer mode unexpectedly

The internal flash memory may be empty, corrupted, or the panel has been reset to factory defaults. Check if a valid project is loaded via WinCC flexible.

Re-download the project to the panel using WinCC flexible over MPI, PROFIBUS, or Ethernet. Ensure the correct panel type is selected in the project settings before transfer.

Communication fault with PLC — connection repeatedly drops

Inspect MPI/PROFIBUS cable for damage, verify termination resistors are correctly set at both ends of the bus, and confirm the panel's bus address does not conflict with other nodes.

Replace damaged cables, set correct bus termination, assign a unique bus address to the panel, and verify baud rate settings match across all network nodes.

Touchscreen input is inaccurate or unresponsive

The resistive touchscreen may require recalibration, or the screen surface may be contaminated. Check for physical damage to the touch overlay.

Perform a touchscreen calibration via the panel's Control Panel settings (accessible during startup). Clean the screen surface with a soft, lint-free cloth. If calibration fails repeatedly, the touch overlay may need replacement.

Panel firmware update fails during ProSave operation

Check the communication cable connection between the PC and the panel, verify that the correct panel type is selected in ProSave, and ensure the panel is in transfer mode before initiating the update.

Restart both the PC and the panel, re-enter transfer mode on the panel, and retry the firmware update. Use a direct point-to-point MPI or Ethernet connection rather than through a network switch to avoid timeouts.

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