Siemens 6AV6355-1CA47-7BC1 OP 177B

€ 3.495,00

SKU: 6AV6355-1CA47-7BC1 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6355-1CA47-7BC1 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. It is part of Siemens' established SIMATIC HMI portfolio, offering reliable performance in demanding industrial environments.

The OP 177B (6AV6355-1CA47-7BC1) features a 5.7-inch STN display and supports both MPI/PROFIBUS DP and Ethernet communication interfaces, enabling flexible integration into existing Siemens automation architectures. The panel runs WinCC flexible runtime software and includes onboard flash memory for project storage. It supports configuration via SIMATIC WinCC flexible engineering software and offers a robust membrane keypad with function keys for operator input alongside the touchscreen.

The OP 177B is widely deployed in manufacturing, packaging, and process industries where a compact, panel-mount HMI is required for machine control and status monitoring. Its compatibility with SIMATIC S7-200, S7-300, and S7-400 PLCs makes it a versatile choice for both new installations and retrofit projects. The unit is suited for applications requiring reliable local operator interaction in environments with moderate space constraints and standard industrial conditions.

Technical Specifications

Display Size	5.7 inch
Display Type	STN LCD
Display Colors	256 colors
Display Resolution	320 x 240 px (QVGA)
Touch Technology	Resistive touchscreen with membrane keypad
Input/Operating Voltage	24 V DC
Power Consumption	Max. 9 W
Communication Interface	MPI/PROFIBUS DP, Ethernet (RJ45), 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), IP20 (rear)
Mounting	Panel mounting
Certifications	CE, UL, cULus
Series/Product Family	SIMATIC HMI OP 177B

Common Error Codes & System Events

Event ID: 10000: Configuration error detected during startup; the loaded project is incompatible or corrupt.
Reload the project using WinCC flexible. Verify the project was compiled for the correct HMI device type and firmware version.
Event ID: 20000: Communication error on MPI/PROFIBUS DP interface; connection to the PLC has been lost.
Check MPI/PROFIBUS cable connections and termination resistors. Verify the bus address settings on both the HMI and PLC match the project configuration.
Event ID: 40000: Tag read/write error; the HMI cannot access a configured PLC tag.
Verify the PLC is in RUN mode and the tag address in the WinCC flexible project is correct. Check communication link status.
Event ID: 50000: Alarm buffer overflow; the number of pending alarms has exceeded the buffer capacity.
Acknowledge and clear active alarms. Review alarm configuration to reduce simultaneous alarm occurrences or increase buffer size in the project settings.
Event ID: 60000: Internal device error; a system fault has been detected in the HMI panel firmware.
Perform a power cycle. If the error persists, update the firmware using ProSave or WinCC flexible and consider restoring factory settings.
Event ID: 70000: Recipe data error; recipe records could not be read from or written to flash memory.
Check available flash memory capacity. Re-transfer the project and recipe data. If flash memory is suspected faulty, the panel may require servicing.
Event ID: 80000: Ethernet communication error; connection to a network node has failed or timed out.
Verify Ethernet cable integrity and switch/hub connectivity. Confirm IP address settings in the project match the physical network configuration.

Frequently Asked Questions

Which PLCs are compatible with the OP 177B (6AV6355-1CA47-7BC1)?

The OP 177B is compatible with SIMATIC S7-200, S7-300, and S7-400 PLCs via MPI or PROFIBUS DP. It also supports connectivity to S7 controllers via Ethernet using the integrated RJ45 port.

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

The OP 177B is configured using Siemens SIMATIC WinCC flexible (Compact or Standard edition). Projects are transferred to the panel via MPI, PROFIBUS, Ethernet, or USB using the ProSave utility.

What is the supply voltage for the 6AV6355-1CA47-7BC1?

The panel operates on 24 V DC. The power supply must be capable of delivering sufficient current to meet the panel's maximum power consumption of approximately 9 W.

Does this panel support recipe and alarm management functions?

Yes, the OP 177B supports recipe management, alarm logging, and trend display functions within the WinCC flexible runtime environment, subject to available flash memory 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 suitable for panel-mount installations where dust and water spray resistance is required.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the power connector. Check that the supply is within tolerance and that the connector is fully seated. Inspect for any blown internal fuse.

Correct the supply voltage if out of range. Re-seat the power connector. If the display backlight has failed, the panel will require backlight or display module replacement.

HMI panel fails to communicate with the PLC via PROFIBUS DP

Check the PROFIBUS cable for continuity and correct termination at both ends of the bus. Verify the bus address configured on the HMI matches the project settings and that no address conflicts exist.

Replace or re-terminate the PROFIBUS cable as needed. Correct the bus address in WinCC flexible and re-transfer the project. Ensure the PLC is in RUN mode and the PROFIBUS network is properly terminated.

Touchscreen does not respond or registers incorrect touch positions

Attempt to recalibrate the touchscreen through the panel's Control Panel settings in the Start Center. Check for physical damage or contamination on the screen surface.

Perform a touchscreen calibration via the SIMATIC HMI Start Center. Clean the screen surface with a soft, dry cloth. If calibration does not resolve the issue, the touchscreen overlay may require replacement.

Project transfer fails when attempting to download via Ethernet

Verify the IP address assigned to the HMI panel in the Start Center matches the target address configured in WinCC flexible. Check that the PC and HMI are on the same network subnet and that no firewall is blocking the transfer port.

Correct the IP address settings on the panel or in the project. Disable any PC firewall temporarily during transfer. Ensure the Ethernet cable is functional and the network switch port is active.

Panel repeatedly restarts or displays a runtime error on startup

The loaded project may be corrupt or incompatible with the current firmware version. Connect via ProSave and check the firmware version installed on the device.

Update the panel firmware to the version compatible with the WinCC flexible project. Re-transfer the project after firmware update. If the issue persists, perform a factory reset via ProSave and reload the project from scratch.

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