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124 Model 2700 Transmitter with PROFIBUS-PA
Using the Display
B.4.5 Entering floating-point values with the display
Certain configuration values, such as meter factors or output ranges, are entered as floating-point
values. When you first enter the configuration screen, the value is displayed in decimal notation (as
shown in Figure B-2) and the active digit is flashing.
Figure B-2 Numeric values in decimal notation
To change the value:
1.
Select to move one digit to the left. From the leftmost digit, a space is provided for a sign. The
sign space wraps back to the rightmost digit.
2.
Scroll to change the value of the active digit: 1 becomes 2, 2 becomes 3, ..., 9 becomes 0, 0
becomes 1. For the rightmost digit, an E option is included to switch to exponential notation.
To change the sign of a value:
1.
Select to move to the space that is immediately left of the leftmost digit.
2. Use
Scroll to specify – (for a negative value) or [blank] (for a positive value).
In decimal notation, you can change the position of the decimal point up to a maximum precision of
four (four digits to the right of the decimal point). To do this:
1.
Select until the decimal point is flashing.
2.
Scroll. This removes the decimal point and moves the cursor one digit to the left.
3.
Select to move one digit to the left. As you move from one digit to the next, a decimal point
will flash between each digit pair.
4. When the decimal point is in the desired position,
Scroll. This inserts the decimal point and
moves the cursor one digit to the left.
To change from decimal to exponential notation (see Figure B-3):
1.
Select until the rightmost digit is flashing.
2.
Scroll to E, then Select. The display changes to provide two spaces for entering the exponent.
3. To enter the exponent:
a.
Select until the desired digit is flashing.
b.
Scroll to the desired value. You can enter a minus sign (first position only), values
between 0 and 3 (for the first position in the exponent), or values between 0 and 9 (for the
second position in the exponent).
c.
Select.
Note: When switching between decimal and exponential notation, any unsaved edits are lost. The
system reverts to the previously saved value.
Note: While in exponential notation, the positions of the decimal point and exponent are fixed.
SX.XXXX
Sign
For positive numbers, leave this space
blank. For negative numbers, enter a
minus sign (–).
Digits
Enter a number (maximum length: eight
digits, or seven digits and a minus sign).
Maximum precision is four.