Intermittent or no price changes with E4 errors; Failed driver input or output
Potential Symptoms
- Intermittent or no communication from line to line or from display to display.
- Getting E4 errors when prices do not change.
- Displays not updating price correctly. After making changes to the prices, some signs update fine while other signs will only update after a power cycle.
- May observe DNR cmd 05 on DM-100 however prices do change.
Environment
- Product: FL-2000, FL-2100, FL-2109, FL-2300, FL-4000, DF-2000, DF-2009, DF-2100, DF-2109, DF-2300, DF-4000, FL-3000, FL-4500, Fuelight or DataMaster, Gas or Petroleum Displays
- Component: Driver input/output
- Control System:
Cause
- Failed output on host driver or input on client driver.
Resolution
- Replace faulty driver.
Work Around
- Swap drivers around.
- Put the driver with a bad output in the last location.
- Put the driver with a bad input in the 1st location (host).
KB ID: DD2101246
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