Function Keys - GE P642 Technical Manual

Chapter 5 - Configuration
Press the right cursor key twice to get to the first control input, or the left cursor key to get to the last control input.
Now you can execute the chosen function (Set/Reset in this case).
If neither of the cursor keys is pressed within 20 seconds of entering a hotkey sub menu, the device reverts to the
default display.
2.10

FUNCTION KEYS

Most products have a number of function keys for programming control functionality using the programmable
scheme logic (PSL).
Each function key has an associated programmable tri-colour LED that can be programmed to give the desired
indication on function key activation.
These function keys can be used to trigger any function that they are connected to as part of the PSL. The function
key commands are in the FUNCTION KEYS column.
The first cell down in the FUNCTION KEYS column is the Fn Key Status cell. This contains a binary string, which
represents the function key commands. Their status can be read from this binary string.
The next cell down (Fn Key 1) allows you to activate or disable the first function key (1). The Lock setting allows a
function key to be locked. This allows function keys that are set to Toggled mode and their DDB signal active
'high', to be locked in their active state, preventing any further key presses from deactivating the associated
function. Locking a function key that is set to the Normal mode causes the associated DDB signals to be
permanently off. This safety feature prevents any inadvertent function key presses from activating or deactivating
critical functions.
The next cell down (Fn Key 1 Mode) allows you to set the function key to Normal or Toggled. In the Toggle mode
the function key DDB signal output stays in the set state until a reset command is given, by activating the function
key on the next key press. In the Normal mode, the function key DDB signal stays energised for as long as the
function key is pressed then resets automatically. If required, a minimum pulse width can be programmed by
adding a minimum pulse timer to the function key DDB output signal.
The next cell down (Fn Key 1 Label) allows you to change the label assigned to the function. The default label is
Function key 1 in this case. To change the label you need to press the enter key and then change the text on
86
¬STP GP User02®
Control Input 1
EXIT SET
FUNCTION KEYS
Fn Key Status
0000000000
FUNCTION KEYS
Fn Key 1
Unlocked
FUNCTION KEYS
Fn Key 1 Mode
Toggled
P64x
P64x-TM-EN-1.3