Operator Interface Module Instruction Manual

Chapter 2
DTAM Micro Overview
2–5
Figure 2.3
Keypad
The DTAM Micro uses a sealed membrane, tactile feedback keypad. The
keys are color coded to easily identify key functions.
Key Color Function
Blue Movement/Operator Response
Dark Grey Display/Format Control
Light Grey Numeric Entry
The following table defines the function of each keypad key.
Key Function
MENU
Returns to the main menu of an application. If an alarm screen is trig-
gered, the MENU key is not functional until the alarm is acknowledged.
MODE
Accesses special features and configuration operating parameters. DIP
switch SW-3 enables or disables the MODE key.
PREV
Steps back through a sequence of linked screens.
NEXT
Steps forward through a sequence of linked screens.
CE
Clears an entire value during data entry.
+ \ –
Toggles a data entry value between positive or negative.
D
Enters a decimal point.
Sends data to the controller. Data includes default values or data entered
at the keyboard. Also used to acknowledge alarm screens.
0 9
Enters numbers 0 to 9 during data entry or selects a numbered item
shown on the display.
F1 F8
Displays any application screen assigned to the key. These keys can also
set or clear bits at eight consecutive registers in the controller data table.
Keypad