Allen-Bradley micrologix 1500, Руководство пользователя

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Publication 1764-UM001A-US-P
5-6 Using Trim Pots and the Data Access Tool (DAT)
Entering Bit Mode
Bit mode allows you to view and modify up to 48 contiguous bit locations in the
controller. The DAT enters the bit mode automatically following a successful
power-up. The bit mode can also be selected by pressing the BIT key. If the bit
mode was previously active, the DAT displays the last bit element monitored. If the
integer mode was active, the DAT displays the first bit element in the data file.
However, there may be a brief delay while the DAT requests information from the
controller. During the delay, the working screen will display. See Working Screen
Operation on page 5-7.
Entering Integer Mode
Integer mode allows you to view and modify up to 48 contiguous 16-bit integer
data locations in the controller. To initiate integer mode, press the INT key. If the
integer mode was previously active, the DAT displays the last integer element
monitored. If the bit mode was active, the DAT displays the first integer element in
the data file. However, there may be a brief delay while the DAT requests
information from the controller. If there is a delay, the working screen is displayed.
See Working Screen Operation on page 5-7.
Monitoring and Editing
1. Press the INT or BIT key to enter the desired mode. The element number
flashes (if not protected).
2. Use the up/down key to scroll and select an element (to scroll rapidly, hold the
up/down key).
3. Press ENTER to edit the element. The element number becomes steady and
the data flashes if it is not protected.
4. Use the up/down key to change the data. Bit values toggle between “ON” and
“OFF”. Integer values increment or decrement. Holding down the up/down
key causes the integer value to increment or decrement quickly.
F1
BIT
F2
INT
ESC
ENTER
PROTECTED
5 0
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