Title: +038=360.000-OU045T_05-PCD2.m4160 PLS SBC - User Manual.pdf
User Manual PCD2.M4x60 │ Document 27-648 │ Edition ENG06 │ 2020-10-215-16LED behaviourThree LEDs (green, red and yellow) show the possible operating statuses of the  CPU as set out in the following table:MeaningFormColourRunRun conditionalRun with error Run conditional  with errors StopStop with errorsHaltSystem diagnosticsRun ●● green ●● ●●/● ●●●●/● ● ● ● ●●/●Stopred    /Error(s)yellow  /Key:LED off●● LED on●●/● LED blinksUser Manual PCD2.M4x60 │ Document 27-648 │ Edition ENG06 │ 2020-10-216-1Requirements │ General Information7Run / Stop buttonA push button is placed near the USB connector.S1The operating mode can be changed during operation or during power-up.If the button is pressed in Run mode for longer than ½ second and less than  3 seconds, the controller switches to Stop mode and vice versa.If the button is pressed for longer than 3 seconds, the last saved user program is  loaded from the flash memory.