Invalid Function Code or Mode

¿Qué significa 254 ?

An invalid function code or mode has been specified, preventing the system from performing the requested operation. This could be due to an incorrect command or an unsuitable operating mode.

• Invalid function code specified.
• Invalid operating mode selected.

Haga clic en los pasos para seguir su progreso.

1. 1

   Check the command code specified with a function code.

2. 2

   Verify the currently selected operating mode.