User manual

CONTROLLINO Instruction Manual Page 11 (31)
USB Connector
The CONTROLLINO PLCs can be connected to a computer (USB connection cable type A-B) via the
USB port that is attached to the front panel. The socket is protected against polarity reversal.
Don’t use too much force when connecting the USB cable!
The main function of the USB port is to program the CONTROLLINO. Inside the CONTROLLINO
there is a USB to UART converter which generates a virtual COM-Port on the PC. You can also use
this port to give data to a terminal or another program.
"RST" Button and LED
The CONTROLLINO controls can be reset with the "RST" button. The loaded user program is then
restarting again. When pushing the "RST" button, the orange LED light with the label "RST" lights
up until the button is released. This signals the function of the reset button visually and shows
that the PLC has been reset.
The button is located on the front of the CONTROLLINO and is slightly recessed in the housing for
reasons of inadvertent actuation. The button must be operated carefully with a small pointed
object (e.g. thin screw driver). Do not use too much force – this can destroy the button!
INFO: After connecting the supply voltage or pressing the Reset-button CONTROLLINO performs
all necessary initializations and then immediately starts the loaded user program.