Issue
Micronet LCDs may fail to upload configurations from MicroNet controllers correctly, leading to incomplete or missing display data.
Product Line
Satchwell MicroNetEnvironment
- MicroNet LCD Displays
- MicroNet Controllers
- VisiSat Configuration Tool
Cause
The upload failure typically occurs when the LCD configuration is not properly transferred from the controller’s RAM to the LCD’s EEPROM. This can happen due to:
- Power cycling or resetting the controller before LCD connection
- Incorrect connection sequence
- Locked configuration settings in VisiSat
Resolution
Follow these steps to ensure successful upload and avoid data loss:
How the Upload Process Works
- Download to Controller: LCD configuration is first downloaded to the controller’s RAM.
- Transfer to LCD: When the LCD is connected, it detects the configuration file and transfers it to its EEPROM.
- RAM Clearance: After transfer, the controller’s RAM copy is deleted.
- Important: If the controller is powered off or reset before the LCD is connected, the configuration will be lost.
LCD Download Procedure
- Power On Controller: Ensure the controller is powered before starting.
- Download Configuration via VisiSat.
- For Standalone NCP Controllers:
- Disconnect communications before connecting the LCD.
- Ensure LCD comms links are properly fitted.
- For Networked NCP Controllers:
- Install an MNN-COM card.
- LCD must be remotely mounted.
- Connect LCD:
- Keep controller power ON.
- Apply power to the LCD.
- Note: Do not press any keys during connection unless using firmware revision J or earlier.
- Wait for Configuration Load.
- Troubleshooting:
- If upload fails, check that the controller’s “Configuration Locked” property is set to No in VisiSat.
- Final Step: Remove the protective strip from the LCD battery.
