The MC80 PLC Firmware upgrade is done using Unity Loader. The MC80 PLC provides a fast and reliable firmware upgrade from the Unity Loader to PLC through USB connection or through Ethernet connection.
For upgrading, select the correct .ldx file and then connect to the PLC.
NOTE:
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BMK C80 ••••• processors have different .ldx files.
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If an application is present before starting an upgrade then the CPU must be in stop mode. Stop command is available from Unity Loader.
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The Firmware upgrade cannot be performed with serial port connection.
The Firmware Upgrade feature can be enabled or disabled in Unity Pro configuration. This feature is disabled in default state.
NOTE: Before upgrading, you have to change the Unity Pro configuration to enable the Firmware Upgrade feature.
The following describes the Firmware upgrade process:
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When FW upgrade process is started, the CPU enters a specific state where only the communication with Unity Loader is active and the state is shown by an LED combination.
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At the end of upgrade, the CPU will reboot with a new version and the application is stored in flash.
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In the stop mode, the CPU does a cold start and if the run option is checked, the application starts automatically.
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If there is an error during the FW upgrade (connection broken or power outage of CPU), the CPU must be reset and restarted with old OS.
