Siemens 6AV6355-1CA47-7BD3 OP 177B

€ 607,64

SKU: 6AV6355-1CA47-7BD3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6355-1CA47-7BD3 is an Operator Panel (OP 177B) belonging to the SIMATIC HMI series, designed for human-machine interface applications in industrial automation environments. This unit provides a monochrome or color display interface for process visualization and operator control, and is part of the established SIMATIC HMI comfort and advanced panel family. It is engineered to integrate directly with Siemens SIMATIC S7 PLCs and other compatible controllers via standard communication interfaces.

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, providing flexibility in operator interaction. It includes integrated interfaces such as PROFIBUS DP and MPI for direct PLC connectivity, as well as a RS-422/RS-485 serial interface for third-party controller integration. The panel operates on a 24 V DC supply, offers onboard flash memory for project storage, and supports configuration via Siemens WinCC flexible engineering software. The robust housing is rated for panel mounting and is designed to withstand typical industrial environmental conditions.

The OP 177B is widely deployed in machine building, manufacturing automation, and process control applications where a compact yet capable operator interface is required. It is commonly found on packaging machinery, conveyor systems, injection molding machines, and general-purpose industrial equipment. Its compatibility with the SIMATIC controller ecosystem and support for PROFIBUS DP makes it particularly suitable for distributed automation architectures.

Technical Specifications

Display Size	5.7 inch
Display Resolution	320 x 240 pixels
Display Type	STN LCD
Display Colors	256 colors
Touch Technology	Touch screen and function keys
Input/Operating Voltage	24 V DC
Power Consumption	Max. 9 W
Communication Interface	PROFIBUS DP, MPI, RS-422/RS-485
Memory	4 MB flash (user memory)
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 panel)
Mounting	Panel mounting
Certifications	CE, UL, cULus
Series/Product Family	SIMATIC HMI OP 177B

Common Error Codes and System Events

Event ID: 10000: Configuration error detected during startup; project data may be corrupted or incompatible with the panel firmware version.
Re-transfer the project using WinCC flexible. Ensure the firmware version on the panel matches the version used during project compilation.
Event ID: 10001: Communication error on MPI/PROFIBUS DP interface; the panel cannot establish a connection to the configured PLC.
Check MPI/PROFIBUS cable connections and termination resistors. Verify the PLC address and baud rate settings match the panel configuration.
Event ID: 20000: Internal flash memory error; project data could not be read or written correctly.
Perform a factory reset and re-transfer the project. If the error persists, the internal flash memory may require replacement of the panel.
Event ID: 40000: Backup battery low or missing; retentive data and real-time clock settings may be lost on power cycle.
Replace the internal backup battery with the correct Siemens-specified replacement. Refer to the OP 177B operating instructions for battery replacement procedure.
Event ID: 70000: Tag communication error; one or more configured tags cannot be read from the connected controller.
Verify PLC program is running and the tag addresses configured in WinCC flexible match the actual PLC data blocks. Check communication cable integrity.
Event ID: 50000: System runtime error; the HMI runtime application has encountered an unexpected fault.
Restart the panel. If the error recurs, re-transfer the project and update the panel firmware to the latest compatible version.
Event ID: 110000: Project transfer interrupted or failed; the panel did not receive a complete project download.
Check the transfer cable or network connection between the engineering PC and the panel. Restart the transfer process in WinCC flexible.

Frequently Asked Questions

What engineering software is used to configure the OP 177B (6AV6355-1CA47-7BD3)?

The OP 177B is configured using Siemens WinCC flexible software. Projects are compiled in WinCC flexible and transferred to the panel via MPI, PROFIBUS, or USB/serial connection.

Which PLCs are compatible with the Siemens OP 177B?

The OP 177B is compatible with Siemens SIMATIC S7-200, S7-300, and S7-400 PLCs via MPI or PROFIBUS DP interfaces. It also supports third-party controllers via the RS-422/RS-485 serial interface using standard protocols.

What is the supply voltage for the 6AV6355-1CA47-7BD3?

The panel operates on a 24 V DC supply voltage. Ensure the power supply is within the specified tolerance range as stated in the OP 177B operating instructions.

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, making it suitable for industrial panel door mounting.

Can the OP 177B display alarm and event messages from the connected PLC?

Yes, the OP 177B supports alarm logging and event message display. Alarms and messages are configured in WinCC flexible and can be triggered by PLC bit or word tags.

Troubleshooting

Display remains blank after power is applied

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

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

Panel fails to communicate with the SIMATIC PLC via MPI or PROFIBUS

Verify the MPI/PROFIBUS cable is correctly wired and that bus termination resistors are enabled at both ends of the network. Check that the PLC address and baud rate configured in the panel match the PLC settings.

Correct any wiring or termination issues. Adjust the communication parameters in WinCC flexible to match the PLC configuration and re-transfer the project to the panel.

Touchscreen does not respond or responds inaccurately to touch input

Check for physical damage or contamination on the touchscreen surface. Attempt a touchscreen recalibration from the panel's system settings menu.

Clean the touchscreen surface with a soft, dry cloth. Perform a recalibration procedure via the Control Panel in the panel's Start Center. If the issue persists, the touchscreen overlay may need replacement.

Project transfer from WinCC flexible fails or is interrupted

Check the transfer cable connection between the engineering PC and the panel. Ensure the panel is set to Transfer mode and that the correct communication channel is selected in WinCC flexible.

Restart both the panel and the engineering PC. Re-initiate the transfer in WinCC flexible. If using a serial connection, verify the COM port settings and cable integrity. Consider using an alternative transfer method such as a memory card.

Real-time clock loses time after power cycle

The internal backup battery is likely discharged or missing. Check the battery status via the panel system settings if available.

Replace the internal backup battery with the Siemens-specified replacement type. After replacement, reset the date and time in the panel's Control Panel settings.

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