Mitsubishi Electric FX1N 485 BD, RS 485 User's Guide
![Mitsubishi Electric FX1N 485 BD, RS 485 manual cover](/images/80524dff82e56ed2470dd79d/thumbs/thumb175x175.webp)
To connect the FX1N 485 BD module to a PLC, attach the module to the left side of the FX1N PLC. Connect the RS-485 communication cable to the terminals marked as A and B on the module. Ensure the module is properly secured and powered up.
First, verify that the module is correctly installed and powered. Check the RS-485 wiring and ensure the correct polarity. Inspect the PLC program for correct communication settings. Lastly, check for any error codes on the PLC or software diagnostics.
The baud rate for the FX1N 485 BD module can be configured using the PLC programming software. Navigate to the communication settings and adjust the baud rate to match the requirements of your connected devices.
Regularly inspect the module for physical damage and secure connections. Clean the module with a dry cloth to prevent dust accumulation. Periodically check communication cables for wear and replace them if necessary.
The FX1N 485 BD module does not require firmware updates as it is a communication module. Ensure that your PLC firmware is up-to-date for optimal performance.
The FX1N 485 BD module is typically used for industrial automation applications requiring RS-485 communication, such as connecting multiple PLCs, interfacing with HMIs, and integrating with other serial devices in a network.
Use diagnostic tools available in the PLC programming software to test communication. You can also use a multimeter to check for signal presence on the RS-485 lines. Ensure all devices are set to the same communication parameters.
Check that the module is correctly installed and powered. Ensure the PLC has the necessary configuration settings to recognize the module. Restart the PLC and check the system diagnostics for any error messages.
The FX1N 485 BD module is specifically designed for the FX1N series. For FX2N series PLCs, you should use the appropriate expansion modules compatible with that series.
The maximum cable length for RS-485 communication is typically 1200 meters (4000 feet) under ideal conditions. However, actual distance may vary based on environmental factors and cable quality.