Siemens 6AV6355-1AA47-7ER6 OP 177B

€ 3.495,00

SKU: 6AV6355-1AA47-7ER6 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6355-1AA47-7ER6 is an Operator Panel (OP 177B) belonging to the SIMATIC HMI series, designed for machine-level visualization and operator control in industrial automation environments. This unit is part of the OP 177B product family, which provides a compact and robust panel solution for process monitoring and control. It is configured for use with Siemens WinCC flexible runtime software and integrates seamlessly into SIMATIC automation architectures.

The OP 177B features a 5.7-inch STN display with a resolution of 320 x 240 pixels (QVGA) and supports 256 colors, providing clear visualization of process data and operator interfaces. The panel includes a membrane keypad with function keys for direct operator input without requiring a touchscreen. It supports communication via MPI, PROFIBUS DP, and Ethernet interfaces, enabling flexible integration into existing network topologies. The unit operates on a 24 V DC supply and is rated to IP65 on the front face, making it suitable for panel-mount installations in demanding environments.

The OP 177B is widely used in manufacturing, automotive, food and beverage, and packaging industries where a reliable and cost-effective HMI solution is required at the machine level. Its compact form factor and keypad-based operation make it particularly suited for applications where touchscreen operation is impractical due to gloves or harsh conditions. The panel is compatible with a broad range of Siemens PLCs including the S7-200, S7-300, and S7-400 families, as well as third-party controllers via configurable communication drivers.

Technical Specifications

Display Size	5.7 inch
Display Type	STN LCD
Display Resolution	320 x 240 pixels (QVGA)
Display Colors	256 colors
Input/Operating Voltage	24 V DC
Power Consumption	Max. 10 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (RJ45)
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)
Mounting	Panel mounting
Certifications	CE, UL, cULus
Series/Product Family	SIMATIC HMI OP 177B

Common Error Codes & System Events

Event ID: 10000: Communication error between HMI panel and PLC. The configured connection to the controller cannot be established or has been lost.
Check MPI/PROFIBUS/Ethernet cabling and connector integrity. Verify PLC is powered and running. Confirm communication parameters (baud rate, station address) match in both HMI project and PLC configuration.
Event ID: 10001: Connection to PLC interrupted during runtime. The HMI panel lost communication with the configured controller.
Inspect cable connections and network topology. Check for address conflicts on the bus. Restart both the HMI panel and PLC if the connection is not automatically restored.
Event ID: 20000: Project download error. The HMI project could not be transferred to the panel successfully.
Verify the transfer cable or Ethernet connection between the engineering PC and the panel. Ensure WinCC flexible is configured with the correct panel type and communication settings. Retry the download.
Event ID: 40000: Internal system error on the HMI panel. A runtime fault has been detected in the panel operating system.
Perform a panel restart. If the error persists, perform a factory reset and re-download the HMI project. Check for firmware compatibility with the WinCC flexible project version.
Event ID: 50000: Insufficient memory for runtime operation. The HMI project exceeds the available memory resources of the panel.
Reduce the size of the HMI project by optimizing graphics, reducing the number of screens, or compressing image files. Ensure the project is compiled for the correct target panel type.
Event ID: 60000: Firmware update error. The firmware transfer to the panel was interrupted or failed.
Restart the panel in transfer mode using the Control Panel settings. Retry the firmware update using ProSave or WinCC flexible. Ensure the correct firmware version for the OP 177B is used.
Event ID: 70000: Tag update error. One or more process tags could not be read from or written to the PLC.
Check that the tag addresses configured in the HMI project match the actual PLC data block or memory addresses. Verify the PLC program is running and the relevant data areas are accessible.

Frequently Asked Questions

What communication interfaces does the OP 177B (6AV6355-1AA47-7ER6) support?

The OP 177B supports MPI, PROFIBUS DP, and Ethernet (RJ45) communication interfaces, allowing integration with a wide range of Siemens PLCs and third-party controllers.

Which PLCs are compatible with the Siemens OP 177B?

The OP 177B is compatible with Siemens S7-200, S7-300, and S7-400 PLCs via MPI or PROFIBUS DP, as well as Ethernet-capable controllers. Third-party PLCs can also be connected using available communication drivers in WinCC flexible.

What software is required to program and configure the OP 177B?

The OP 177B is configured using Siemens WinCC flexible software. The project is then transferred to the panel via Ethernet, MPI, or USB using the ProSave utility or directly from WinCC flexible.

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

The front face of the OP 177B is rated to IP65, providing protection against dust ingress and low-pressure water jets, making it suitable for panel-mount installations in industrial environments.

Does the OP 177B have a touchscreen?

No, the OP 177B is a keypad-operated panel and does not feature a touchscreen. Operator input is performed via the integrated membrane function keys and navigation keys.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the panel 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 correctly connected. If the supply is confirmed good but the display remains blank, the internal power supply board or backlight may be faulty and the unit should be sent for repair or replacement.

HMI panel fails to communicate with the PLC

Verify the communication cable type and wiring for the selected interface (MPI, PROFIBUS, or Ethernet). Check the station address and baud rate settings on both the panel and the PLC. Use a bus diagnostic tool to check for bus errors.

Correct any address conflicts or baud rate mismatches. Replace damaged cables or connectors. Ensure the PLC is in RUN mode and the communication driver in the HMI project matches the connected controller.

HMI project cannot be downloaded to the panel

Confirm the panel is in Transfer mode, accessible via the Start Center or Control Panel on the device. Check the connection type (Ethernet or MPI) and verify the IP address or MPI address is correctly configured in WinCC flexible.

Set the panel to Transfer mode manually. Correct the target panel address in WinCC flexible. If using Ethernet, ensure both the PC and panel are on the same subnet. Retry the project transfer.

Touchkeys or function keys are unresponsive

Check whether the issue affects all keys or only specific ones. Inspect the membrane keypad for physical damage, contamination, or deformation. Verify the HMI project has functions assigned to the affected keys.

Clean the keypad surface and check for mechanical damage. If specific keys are unresponsive due to project configuration, reassign functions in WinCC flexible and re-download. If the membrane keypad is physically damaged, the panel requires hardware repair.

Panel repeatedly restarts or enters an error loop after startup

Check the firmware version on the panel against the version required by the WinCC flexible project. A mismatch can cause runtime initialization failures. Also check for corrupted project data on the panel.

Use ProSave to update the panel firmware to the version compatible with the project. Perform a factory reset via the Control Panel bootstrap menu, then re-download the HMI project from WinCC flexible.

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