Allen-Bradley micrologix 1500, Руководство пользователя

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Publication 1764-UM001A-US-P
Using Trim Pots and the Data Access Tool (DAT) 5-3
Data Access Tool (DAT)
The DAT is a convenient and simple tool that provides an interface for editing and
monitoring data. The DAT has five primary features:
•
Direct access to 48 bit elements
•
Direct access to 48 integer elements
•
Two function keys
•
Display controller faults
•
Removal/Insertion under power
DAT Keypad and Indicator Light Functions
The DAT has a digital display, 6 keys, an up/down key, and 7 indicator lights.
Their functions are described in the table on page 5-3.
F1
BIT
F2
INT
ESC
ENTER
PROTECTED
Feature Function
Digital Display Displays address elements, data values, faults and errors.
Up/Down Key Selects element numbers and change data values. The up/down key scrolls when held.
F1 Key and Indicator Light Controls the F1 status bit. When the F1 key is pressed or latched, the F1 indicator LED is lit.
F2 Key and Indicator Light Controls the F2 status bit. When the F2 key is pressed or latched, the F2 indicator LED is lit.
ESC Key Cancels a current operation.
BIT Key and Indicator Light Pressing the BIT key puts the DAT in bit mode. The bit indicator light is on when the DAT is in bit
mode.
INT Key and Indicator Light Pressing the INT key puts the DAT in integer mode. The integer indicator light is on when the DAT is
in integer mode.
ENTER Key Press to select the flashing element number or enter data value.
PROTECTED Indicator Light Indicates element data cannot be changed using the DAT (element is read-only).
NOTE
The F1, F2, ESC, BIT, INT, and ENTER keys do not repeat
when held. Holding down any one of these keys results in only
one key press. The Up/Down arrow key is the only key that
repeats when held.
AB Spares