User Manual

PE400D Series 11
1.1.2 I/O ports and LEDs
Watchdog LED
This LED is used to indicate a watchdog time out event.
LED color Status Description
Green
On WDTO (Watch dog timeout) event
O No WDTO event
CFAST LED
This LED is used to indicate a CFAST read/write activity.
LED color Status Description
Green
On CFAST is reading/writing data
O Module is not transmitting data
User dened LED
These LEDs have programmable LED behavior and allows the
user to dene the LED behaviour as well as their function.
Item LED color Status Description
U1 Red
On/Blink User dened
O User dened
U2 Red
On/Blink User dened
O User dened
U3 Yellow
On/Blink User dened
O User dened
U4 Yellow
On/Blink User dened
O User dened