Siemens 6AV6355-1CA47-7CJ1 OP 177B

€ 943,81

SKU: 6AV6355-1CA47-7CJ1 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6355-1CA47-7CJ1 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, enabling operators to monitor and control industrial processes directly at the machine. As part of the SIMATIC HMI comfort and mobile panel lineage, it is engineered for robust use in demanding industrial environments.

The OP 177B features a 5.7-inch STN display with a resolution of 320 x 240 pixels and supports up to 256 colors. It is equipped with MPI, PROFIBUS DP, and Ethernet (TCP/IP) communication interfaces, allowing integration with SIMATIC S7-200, S7-300, and S7-400 PLCs as well as third-party controllers. The panel includes 256 KB user memory for project data, supports WinCC flexible as its configuration software, and provides a USB interface for data transfer and firmware updates. Function keys and a membrane keypad complement the display for operator input.

The OP 177B is widely deployed in manufacturing, packaging, and process automation applications where a compact, panel-mounted HMI is required. Its compatibility with the SIMATIC S7 controller family makes it a standard choice for machine builders and system integrators working within the Siemens automation ecosystem. The unit is suitable for installation in control cabinets and machine panels across industries such as automotive, food and beverage, and general factory automation.

Technical Specifications

Display Size	5.7 inch
Display Resolution	320 x 240 pixels
Display Type	STN color LCD
Display Colors	256 colors
Input/Operating Voltage	24 V DC
Power Consumption	Max. 9 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), USB
User Memory	256 KB
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
Certifications	CE, UL, cULus
Configuration Software	WinCC flexible 2005 or higher

Common Error Codes & System Events

Event ID: 10000: Connection to PLC could not be established or was interrupted during operation.
Check MPI/PROFIBUS/Ethernet cable connections and verify PLC address settings in the project configuration. Ensure the PLC is powered and in RUN mode.
Event ID: 10001: Communication timeout: no response received from the configured controller within the expected time window.
Verify network cable integrity, check baud rate and station address settings, and confirm the PLC program is running and responding.
Event ID: 20000: Project download failed or project data is corrupted on the panel.
Re-download the WinCC flexible project to the panel via USB or Ethernet. Ensure the project was compiled without errors before transfer.
Event ID: 40000: System memory low: available user memory is insufficient for the current project.
Reduce project size by removing unused screens, tags, or scripts. Check that the project does not exceed the 256 KB user memory limit.
Event ID: 50000: Firmware version mismatch between the panel and the WinCC flexible project.
Update the panel firmware to match the version required by the project, or recompile the project using the firmware version installed on the panel.
Event ID: 60000: Internal device error or hardware fault detected during self-test at startup.
Perform a factory reset via the panel's Start Center. If the error persists, the unit may require repair or replacement of internal components.
Event ID: 70000: Tag update error: one or more process tags could not be read or written.
Check PLC data block addresses referenced in the project. Verify that the tag addresses exist and are accessible in the connected controller.

Frequently Asked Questions

Which PLCs are compatible with the OP 177B (6AV6355-1CA47-7CJ1)?

The OP 177B is compatible with SIMATIC S7-200, S7-300, and S7-400 PLCs via MPI or PROFIBUS DP. It also supports Ethernet-based communication with S7-300/400 and can be configured for third-party controllers using WinCC flexible drivers.

What software is required to configure and program this panel?

The OP 177B is configured using Siemens WinCC flexible 2005 or a later compatible version. Projects are compiled in WinCC flexible and transferred to the panel via USB or Ethernet.

What is the supply voltage for the 6AV6355-1CA47-7CJ1?

The panel operates on 24 V DC. The supply must be within the specified tolerance range to ensure reliable operation.

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 installation in environments where dust and water spray may be present.

Can the OP 177B communicate over Ethernet?

Yes, the OP 177B supports Ethernet (TCP/IP) communication in addition to MPI and PROFIBUS DP, allowing integration into networked automation systems and remote project download.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the panel's power connector. Check for correct polarity. Inspect the internal fuse if accessible.

Correct any wiring errors or supply voltage issues. If the supply is confirmed good and the display remains blank, the backlight or internal power supply board may require replacement.

Panel fails to establish communication with the PLC

Verify the MPI or PROFIBUS address configured in the WinCC flexible project matches the address set on the PLC. Check cable connections and termination resistors on the bus.

Correct address mismatches in the project configuration, replace damaged cables, and ensure proper bus termination at both ends of the PROFIBUS or MPI network.

Touchscreen or function keys do not respond to input

Check whether the panel is in transfer mode or Start Center mode, which may disable normal operation. Inspect the keypad membrane for physical damage.

Exit transfer or Start Center mode and return to runtime. If keys remain unresponsive, recalibrate the touch input via the Start Center settings or replace the keypad membrane.

Project download fails or panel does not accept new firmware

Confirm the USB cable or Ethernet connection is active and recognized. Verify that the WinCC flexible project version is compatible with the installed panel firmware version.

Use a known-good USB cable or direct Ethernet connection. Update panel firmware to the required version before re-attempting the project download.

Panel repeatedly restarts or shows a startup error during boot

Attempt to access the Start Center by pressing the appropriate key combination during boot. Check whether a corrupted project is causing the restart loop.

Boot into the Start Center and perform a factory reset or delete the existing project. Re-download a verified project from WinCC flexible to restore normal operation.

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