Maple Systems OIT Family - Manual (Page 79)

3. In the Action drop down list box, choose the action you want this screen dependent
function key to perform.
4. If you selected Push On/Off, Momentary, or Latched, in the Address group box,
select the PLC coil address to use for this screen dependent function key.
5. If you selected Screen, Dnload Recipe, or Upload Recipe in the Screen scroll box,
select the stored screen number to display when this screen dependent function key is
pressed.
6. If you selected Screen, Dnload Recipe, or Upload Recipe and want to use the
password feature, in the Password drop down list box, select the appropriate password
level. For more information on passwords, refer to the Passwords section in this
chapter.
7. Choose the Done button to return to the Screen-Dependent Function Key Editor dialog
box.
8. Choose the Done button to return to the OITware-200 main screen.
Control Keys
Following is a description of how each control key operates. If you are configuring an
OIT3100 or OIT4100 Series product, except OIT3160 or OIT4160, you should use the
requirements paragraphs when deciding which keys to place on your user-defined
keypad.
Alarm Acknowledge
The ALARM ACKNOWLEDGE key is used to acknowledge the alarm currently in
progress and remove it from the alarm stack.
Requirements: If using alarm screens, the ALARM ACKNOWLEDGE key is required
unless you use the PLC to clear the alarms. Using the PLC to clear alarms is not
recommended, since there will be no way to know if the OIT operator saw the alarm.
Arrow
The arrow keys are used to move the cursor from one read/write PLC register monitor to
another. Each time one of the arrow keys is pressed, the cursor moves to the next closest
read/write PLC register monitor in the direction of the pressed arrow key. When the
cursor is located at one of the edges of the display, additional keypresses in the direction
of the display edge cause the cursor to wrap around.
Requirements: If using read/write PLC register monitors, either the right arrow key or
left arrow key is required. Additional arrow keys can reduce the keypresses required to
access certain read/write PLC register monitors on the screen, but are not necessary.
Delta+ & Delta-
The DELTA+ and DELTA- keys are used in read/write PLC register monitors that have
been configured with a preset increment/decrement value. When the cursor is on a
read/write PLC register monitor with a preset increment/decrement value, the DELTA+
key increments the value in the PLC register monitor on the screen by the preset value
and the DELTA- key decrements the value. These changes are immediately written to the
PLC register. If pressing the DELTA+ or DELTA- key causes the value in the PLC
register monitor to bump against the preset low or high limit, the key is ignored.
Key Types 79
1010-0099, Rev. 07