Siemens 6AV6355-1CA47-7CC1 OP 177B

€ 2.995,00

SKU: 6AV6355-1CA47-7CC1 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6355-1CA47-7CC1 is an Operator Panel (OP 177B) belonging to the SIMATIC HMI series, designed for machine-level operator control and monitoring tasks. This unit is part of the Mobile Panel and Comfort Panel generation within Siemens' HMI portfolio, offering a compact and robust design suitable for demanding industrial environments. The OP 177B provides a monochrome or color display interface for visualizing process data and interacting with connected automation systems.

The 6AV6355-1CA47-7CC1 features a 5.7-inch STN color display with a resolution of 320 x 240 pixels (QVGA), supporting up to 256 colors for clear process visualization. It is equipped with both MPI/PROFIBUS DP and RS-422/RS-485 interfaces, enabling direct connection to SIMATIC S7, S5, and a range of third-party PLCs. The panel includes function keys and a membrane keypad for operator input, and is configured and programmed using WinCC flexible software. Onboard flash memory supports project storage and recipe management, and the unit operates on a 24 V DC supply.

The OP 177B is widely deployed in machine building, manufacturing automation, and process control applications where a compact, panel-mounted HMI is required. It is suited for use in industries such as automotive, food and beverage, packaging, and general factory automation. Its compatibility with the SIMATIC S7-300/400 controller family and support for PROFIBUS DP makes it a practical choice for integration into existing Siemens automation architectures.

Technical Specifications

Display Size	5.7 inch
Display Resolution	320 x 240 pixels (QVGA)
Display Type	STN color LCD
Display Colors	256 colors
Input Voltage	24 V DC
Power Consumption	Approx. 8 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 Rating (Front)	IP65
IP Rating (Rear)	IP20
Mounting	Panel mounting
Configuration Software	WinCC flexible 2008
Series/Product Family	SIMATIC HMI OP 177B
Certifications	CE, UL, cULus

Common Error Codes and System Events

Event ID: 1000: Communication error between HMI panel and PLC. The configured connection to the controller cannot be established or has been lost.
Check MPI/PROFIBUS DP cable connections and termination resistors. Verify the PLC address and baud rate settings match the HMI project configuration. Ensure the PLC is powered and in RUN mode.
Event ID: 1003: Connection to PLC interrupted during runtime. The HMI lost communication with the configured controller.
Inspect the communication cable for damage or loose connectors. Check the PROFIBUS/MPI network for correct termination at both ends. Restart the HMI and PLC if the connection is not restored automatically.
Event ID: 10000: System error on the HMI device. An internal operating system or runtime error has occurred.
Perform a warm restart of the HMI panel. If the error persists, reload the project using WinCC flexible and re-transfer it to the device. Check for firmware compatibility issues.
Event ID: 10001: Project transfer error. A project transfer from the configuration PC to the HMI panel has failed.
Verify the communication cable and interface settings used for transfer. Ensure WinCC flexible version is compatible with the panel firmware. Check available memory on the device before retransferring.
Event ID: 20000: Flash memory write error. The HMI was unable to write data (e.g., recipe or log data) to internal flash memory.
Check available storage space on the device. Clear old recipe data or log files. If the error persists, the internal flash memory may be failing and the unit should be inspected for hardware faults.
Event ID: 40000: Configuration error detected at runtime. A tag or screen object references a variable or connection that is not correctly configured in the loaded project.
Review the project in WinCC flexible for misconfigured tags or missing PLC connections. Correct the configuration and retransfer the updated project to the panel.
Event ID: 2000: Printer communication error. The HMI cannot communicate with the configured printer.
Check the printer cable connection and printer power status. Verify the printer type and port settings in the HMI project configuration match the connected printer.

Frequently Asked Questions

Which PLCs are compatible with the OP 177B (6AV6355-1CA47-7CC1)?

The OP 177B supports SIMATIC S7-200, S7-300, and S7-400 PLCs via MPI/PROFIBUS DP, as well as S5 PLCs and a range of third-party controllers via the RS-422/RS-485 interface. Compatibility depends on the communication driver configured in the WinCC flexible project.

What software is used to configure and program this HMI panel?

The OP 177B is configured using Siemens WinCC flexible 2008 or later compatible versions. Projects are transferred to the panel via MPI, PROFIBUS DP, or a serial connection from the engineering PC.

What is the supply voltage for the 6AV6355-1CA47-7CC1?

The panel operates on a 24 V DC supply voltage. Ensure the power supply is within the specified tolerance range and provides sufficient current capacity.

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 panel-mounted installations in industrial environments.

Can the OP 177B communicate over PROFIBUS DP?

Yes, the OP 177B supports PROFIBUS DP communication, allowing it to connect directly to SIMATIC S7 PLCs and other PROFIBUS-compatible controllers at baud rates up to 12 Mbit/s.

Troubleshooting

Display remains blank after power is applied

Check the 24 V DC supply voltage at the power connector. Verify the supply is within tolerance and delivering sufficient current. Inspect the internal fuse if accessible.

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

HMI panel shows 'No connection to PLC' message at runtime

Verify the MPI or PROFIBUS DP cable is securely connected at both the HMI and PLC ends. Check that bus termination resistors are correctly placed at both ends of the network. Confirm the PLC address and baud rate in the HMI project match the actual PLC settings.

Correct any wiring faults or termination issues. Update the HMI project in WinCC flexible to match the PLC network parameters and retransfer the project. Replace the communication cable if it is damaged.

Project transfer from PC to HMI panel fails

Check the transfer cable connection between the PC and the HMI panel. Verify the correct COM port and transfer settings are selected in WinCC flexible. Confirm the panel is in transfer mode.

Place the panel in transfer mode via the Start Center menu. Use a known-good transfer cable and ensure the correct interface is selected in WinCC flexible. Check that sufficient free memory is available on the panel before initiating the transfer.

Touchscreen or keypad inputs are not responding correctly

Check whether the membrane keypad shows physical damage or contamination. For function key issues, verify the key assignments in the WinCC flexible project. Confirm the panel firmware version is compatible with the loaded project.

Clean the keypad surface if contaminated. Recalibrate input settings if available in the panel's Start Center. If keys are physically damaged, the front panel membrane may need replacement. Reload the project if a software configuration issue is suspected.

Recipe data or log data is not being saved

Check the available flash memory on the device. Verify that the recipe or data log configuration in the WinCC flexible project is correctly set up with valid storage paths.

Delete obsolete recipe records or log files to free up memory. Correct the storage configuration in the project and retransfer. If flash memory errors persist, the internal storage may be degraded and the unit should be evaluated for hardware repair.

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