Siemens 6AV6355-1AA47-7CC2 OP 177B

€ 3.495,00

SKU: 6AV6355-1AA47-7CC2 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6355-1AA47-7CC2 is an operator panel belonging to the SIMATIC HMI OP 177B series, manufactured by Siemens as part of the SIMATIC HMI product line. This panel is a compact, high-performance operator panel designed for machine-level visualization and control tasks in industrial automation environments. It provides a monochrome or color display interface for process monitoring, parameter input, and alarm management.

The OP 177B features a 5.7-inch STN display and supports both MPI and PROFIBUS DP communication interfaces, enabling direct integration with SIMATIC S7-200, S7-300, and S7-400 PLCs. The panel is configured using WinCC flexible engineering software and supports recipe management, trend display, alarm logging, and multi-language operation. It operates on a 24 V DC supply and is built to withstand the demanding conditions of industrial environments, with a front panel protection rating of IP65.

The OP 177B is widely used in machine building, automotive manufacturing, food and beverage processing, and packaging industries where a reliable and compact HMI solution is required at the machine level. Its compatibility with the SIMATIC S7 controller family and support for PROFIBUS DP makes it particularly suitable for distributed automation architectures. The panel's robust construction and Siemens ecosystem integration make it a practical choice for both new installations and retrofitting existing SIMATIC-based systems.

Technical Specifications

Display Size	5.7 inch
Display Type	STN LCD
Display Colors	256 colors
Display Resolution	320 x 240 pixels (QVGA)
Touch Technology	Resistive touchscreen with function keys
Input/Operating Voltage	24 V DC
Power Consumption	Max. 9 W
Communication Interface	MPI, PROFIBUS DP, RS 422/485
IP Rating (Front)	IP65
IP Rating (Rear)	IP20
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
Certifications	CE, UL, cULus
Configuration Software	WinCC flexible 2005 or later
Mounting	Panel mounting, portrait or landscape

Common Error Codes & System Events

Event ID: 10000: Communication error between the HMI panel and the connected PLC. The panel cannot establish or maintain a connection to the controller.
Check MPI or PROFIBUS DP cable connections and termination resistors. Verify the PLC address settings match the HMI project configuration. Ensure the PLC is in RUN mode.
Event ID: 10001: PLC connection timeout. The HMI panel has lost communication with the PLC during operation.
Inspect the communication cable for damage or loose connectors. Verify bus termination and cable shielding. Check for address conflicts on the PROFIBUS or MPI network.
Event ID: 20000: Project download error. The configuration project could not be successfully transferred to the HMI panel.
Verify the USB or MPI connection between the engineering PC and the panel. Ensure the WinCC flexible project version is compatible with the panel firmware. Retry the download after restarting both devices.
Event ID: 40000: System memory low. The panel's available runtime memory is insufficient to execute the current project.
Reduce the number of active screens, alarms, or recipes in the project. Archive historical data and clear the alarm buffer. Consider simplifying the project structure.
Event ID: 50000: Internal device error. A hardware or firmware fault has been detected within the HMI panel.
Perform a panel restart. If the error persists, update the panel firmware using ProSave. If the fault continues, the panel may require repair or replacement.
Event ID: 60000: Configuration error. The loaded project contains settings or objects that are incompatible with this panel variant.
Verify that the project was created for the correct HMI panel type (OP 177B) in WinCC flexible. Re-download the correct project version to the panel.
Event ID: 70000: Alarm buffer overflow. The number of pending or logged alarms has exceeded the buffer capacity.
Acknowledge and clear active alarms. Archive or delete the alarm log. Review the alarm configuration to reduce unnecessary alarm triggers.

Frequently Asked Questions

Which PLCs are compatible with the Siemens OP 177B (6AV6355-1AA47-7CC2)?

The OP 177B is compatible with SIMATIC S7-200, S7-300, and S7-400 PLCs via MPI or PROFIBUS DP interfaces. It can also communicate with S7-1200 and S7-1500 controllers in some configurations using appropriate drivers.

What software is required to configure the OP 177B?

The OP 177B is configured using Siemens WinCC flexible 2005 or a later version. The ProSave tool is used for firmware updates and panel backup/restore operations.

What is the supply voltage for the OP 177B?

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

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, suitable for most industrial machine enclosures.

Can the OP 177B display be used in both portrait and landscape orientation?

Yes, the OP 177B supports both portrait and landscape mounting orientations, providing flexibility in panel design and installation.

Troubleshooting

Display remains blank after power on

Check that 24 V DC is present at the power supply terminals. Measure voltage at the panel connector and inspect the supply cable for damage. Verify that the internal fuse is intact.

Restore the correct 24 V DC supply. Replace any blown fuse with the correct rating. If the supply is correct and the display remains blank, the panel backlight or internal power board may require replacement.

HMI panel fails to communicate with the PLC

Verify the MPI or PROFIBUS DP address configured in the HMI project matches the physical PLC address. Check cable connections, bus termination resistors at both ends of the network, and cable shielding continuity.

Correct any address mismatches in the WinCC flexible project and re-download. Replace damaged cables and ensure proper bus termination. Confirm the PLC is powered and in RUN mode.

Touchscreen does not respond or responds inaccurately

Check for physical damage or contamination on the touchscreen surface. Attempt a touchscreen recalibration through the panel's Start Center or Control Panel menu.

Clean the touchscreen surface with a soft, dry cloth. Perform a touchscreen calibration via the panel's operating system settings. If calibration fails repeatedly, the touchscreen assembly may need to be replaced.

Project download fails or is interrupted

Verify the USB or MPI connection between the engineering PC and the panel. Check that the WinCC flexible project is compiled without errors and is configured for the correct panel type.

Restart both the engineering PC and the HMI panel before retrying the download. Ensure the correct communication driver and port settings are selected in WinCC flexible. Update the panel firmware using ProSave if version incompatibility is suspected.

Panel repeatedly restarts or enters a boot loop

This may indicate a corrupted project file or a firmware issue. Attempt to access the Start Center during boot by pressing the appropriate key combination to prevent automatic project loading.

Use ProSave to perform a firmware update or restore a known-good project backup. If the panel cannot be recovered via software, a factory reset through the Start Center may be required. Hardware failure of the internal storage or CPU board may necessitate panel repair.

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