Siemens 6AV6355-1AA47-7CJ2 OP 177B

Name: Siemens 6AV6355-1AA47-7CJ2 OP 177B
Brand: Siemens
SKU: 6AV6355-1AA47-7CJ2
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6355-1AA47-7CJ2 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6355-1AA47-7CJ2 is an operator panel belonging to the SIMATIC OP 177B series, part of Siemens' SIMATIC HMI product line. This unit provides a monochrome or color graphical display interface for machine-level operator control and monitoring tasks. It is designed for use with Siemens SIMATIC S7 and S5 PLCs as well as third-party controllers, and is configured using the WinCC flexible engineering software.

The OP 177B features a 5.7-inch STN display with a resolution of 320 x 240 pixels and supports both touch and key-based operation, combining a touchscreen with a membrane keypad for flexible input. It includes integrated interfaces such as MPI/PROFIBUS DP and RS-422/RS-485 serial communication ports, enabling direct connection to a wide range of controllers. The panel offers a robust aluminum front bezel with IP65 protection on the front face, making it suitable for installation in control cabinet doors exposed to industrial environments. Internal flash memory supports project storage and recipe management.

The OP 177B is widely used in manufacturing, packaging, food and beverage, and general machine automation applications where a compact, panel-mount HMI is required. Its combination of touch and function key input makes it suitable for applications requiring both graphical navigation and dedicated hard-key control. The unit's compatibility with PROFIBUS DP allows integration into distributed automation architectures common in process and discrete manufacturing plants.

Technical Specifications

Display Size	5.7 inch
Display Type	STN LCD
Display Resolution	320 x 240 pixels (QVGA)
Display Colors	256 colors
Touch Technology	Resistive touchscreen with membrane keypad
Input/Operating Voltage	24 V DC
Power Consumption	Max. 9 W
Communication Interface	MPI/PROFIBUS DP, RS-422/RS-485
IP/Protection Rating	IP65 (front), IP20 (rear)
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: Communication error between the HMI panel and the connected PLC or controller.
Check the MPI/PROFIBUS DP cable connections and termination resistors. Verify the configured station address and baud rate match the PLC settings. Restart both devices if necessary.
Event ID: 10001: Connection to the PLC has been interrupted or timed out.
Inspect the communication cable for damage. Confirm the PLC is powered and in RUN mode. Check the HMI project configuration for correct PLC address and interface settings.
Event ID: 20000: Project download error — the project transfer to the panel has failed.
Verify the PC-to-panel connection (MPI, PROFIBUS, or USB). Ensure WinCC flexible is using the correct transfer channel and that the panel is in Transfer mode. Check available flash memory on the device.
Event ID: 40000: System memory low — available internal memory for runtime operation is insufficient.
Reduce the number of active alarms or logged data entries. Optimize the project to reduce memory usage. Consider archiving or clearing historical data stored on the device.
Event ID: 50000: Configuration error — a screen object or tag references an invalid or missing address.
Open the project in WinCC flexible and check all tag addresses for correctness. Recompile and re-download the project to the panel after correcting any invalid references.
Event ID: 60000: Hardware fault detected — internal self-diagnostic has identified a hardware component error.
Perform a power cycle on the panel. If the fault persists, note the specific event details and contact Siemens technical support. The panel may require repair or replacement of internal components.
Event ID: 70000: Backup battery low or battery failure (if applicable to variant).
Replace the internal backup battery with the correct Siemens-specified replacement. Ensure the panel is powered during battery replacement to avoid loss of retentive data.

Frequently Asked Questions

What PLC systems is the OP 177B compatible with?

The OP 177B is compatible with Siemens SIMATIC S7-200, S7-300, S7-400, and S5 PLCs via MPI or PROFIBUS DP. It also supports connections to third-party controllers via the RS-422/RS-485 serial interface using appropriate drivers in WinCC flexible.

What software is required to configure the 6AV6355-1AA47-7CJ2?

This panel is configured using Siemens WinCC flexible software. The project is then transferred to the panel via MPI, PROFIBUS DP, or a direct PC adapter connection.

Does the OP 177B support both touch and key input?

Yes, the OP 177B combines a resistive touchscreen with a membrane keypad, allowing operators to use either touch gestures on the display or dedicated function and navigation keys.

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

The front face of the OP 177B carries an IP65 protection rating, making it resistant to dust ingress and low-pressure water jets, suitable for installation in industrial control cabinet doors.

Can the OP 177B be used with PROFIBUS DP networks?

Yes, the OP 177B has an integrated MPI/PROFIBUS DP interface that supports PROFIBUS DP communication, allowing it to be integrated into distributed automation networks alongside other PROFIBUS-compatible devices.

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 tolerance. Inspect the internal fuse if accessible.

Ensure the 24 V DC supply is stable and within specification. If the supply is correct and the display remains blank, the internal power supply board or backlight inverter may be faulty and require replacement or professional repair.

Panel shows 'No connection to PLC' or communication error on startup

Verify the MPI or PROFIBUS DP cable is correctly connected and terminated at both ends. Check that the PLC station address configured in the HMI project matches the actual PLC address. Confirm the baud rate settings are consistent.

Correct any address or baud rate mismatches in the WinCC flexible project and re-download. Replace the communication cable if damaged. Ensure PROFIBUS termination resistors are enabled only at the physical ends of the network segment.

Touchscreen does not respond or responds inaccurately

Check whether the touchscreen responds at all or only in certain areas. Determine if the screen is physically damaged or if calibration has drifted. Test with clean, dry fingertips.

Perform a touchscreen recalibration through the panel's system settings menu. If calibration does not resolve the issue, the touchscreen overlay may be damaged and require replacement by a qualified repair technician.

Project transfer from PC to panel fails

Confirm the panel is set to Transfer mode. Check the PC adapter connection type (MPI, PROFIBUS, or USB) and verify the correct transfer channel is selected in WinCC flexible. Ensure no firewall or driver issue is blocking communication.

Set the panel to Transfer mode via the Start Center menu. Reinstall or update the PC adapter driver if necessary. If using MPI, verify the adapter baud rate matches the network. Re-attempt the transfer after confirming all settings.

Panel reboots unexpectedly or freezes during operation

Check the 24 V DC supply for voltage dips or instability, which can cause unexpected resets. Review the alarm and event log on the panel for any recorded system events prior to the reboot.

Install a stable, adequately rated 24 V DC power supply with sufficient current capacity. If the issue persists with a stable supply, the panel's internal hardware may be faulty and the unit should be sent for professional inspection and repair.

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