Festo EasyPort USB D16A, Manual

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5. Layout and function
108 © Festo Didactic GmbH & Co. KG „ 721876 108
EasyPort USB
PORT 2 PORT 1
PORT 3 USB RS 232 24V 0V
Status Error
OUT
IN
0 7 0 7
EasyPort USB control and display panel
The control panel at the EasyPort USB includes the following elements:
Error LED
The red error LED lights up if a short circuit is detected at one of the
outputs. The outputs at the EasyPort USB are then deactivated.
This LED also lights up briefly when the EasyPort USB is started up.
It goes out during the course of the start-up test.
Status LED
The green status LED indicates two states:
‟ Flashing at a frequency of 1 Hz:
Status immediately after start-up, the EasyPort USB module has not
yet started communicating.
‟ Pulsating flashing:
The EasyPort USB module has been addressed. The address is
indicated every 2 seconds by a series of briefly flashing light signals.
5.2
Control elements