Allen-Bradley Micro800

Chapter 15 Input/Output instructions
382 Rockwell Automation Publication 2080-RM001D-EN-E - February 2015
KEY_READ checks Key status on the optional LCD module when the user
display is active. This is only available for the Micro810.
KEY_READ operation
The KEY_READ function block is available for Micro810 controllers only.
Arguments
Parameter Parameter type Data type Description
Enable Input BOOL Function block enable.
When Enable = TRUE, execute LCD read.
When Enable = FALSE, there is no read operation.
CKYL Output BOOL TRUE: ESC key pressed for more than 2 seconds.
EKYL Output BOOL TRUE: OK key pressed for more than 2 seconds.
CKY Output BOOL TRUE: ESC key pressed.
EKY Output BOOL TRUE: OK key pressed.
UKY Output BOOL TRUE: Up key pressed.
DKY Output BOOL TRUE: Down key pressed.
LKY Output BOOL TRUE: Left key pressed.
RKY Output BOOL TRUE: Right key pressed.
KEY_READ