User's Manual

7ML19985FH04 SITRANS LR 400 – INSTRUCTION MANUAL Page 28
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Operation
Entering a Parameter Value
The ARROW keys operate like a cursor control when entering a parameter value with the
input position marked by flashing of a single character.
• Increase or decrease a character’s value by using UP and DOWN .
• Press RIGHT to move the input position to the right. At the far right position,
press RIGHT again: operates like an ENTER key. The device saves the
changed value and closes the parameter unless the value is not within the
permissible input range. Then an error message is displayed.
• Press LEFT to move the input position to the left. At the farthest left position,
press LEFT again: it now functions as a CANCEL key. The device closes the
parameter input without saving the changed value.
Top or bottom of representable range
If you press UP when the value is at the top of the representable range,
SITRANS LR 400 automatically places the value at the next highest position. If 0.9 is
displayed and you press UP , the value becomes 1.0. So, 9 becomes 10, 90 or 99
become 100 (depending on whether you have set the input position to the second or first
9), etc.
This input system also works in the opposite direction: For example, when 100 is
displayed and you press DOWN on the first or second 0, the numeric value changes
to 90 or 99 and the device cancels the places in front of the decimal point.
Decimal point
You can also set the cursor to the decimal point (unless an integer value is currently
displayed). UP or DOWN then multiply or divide the displayed value by 10. The
necessary additional places in front of the decimal point appear. You cannot change the
number of displayed decimal places.
Display scrolling
Display text assigned to a parameter may sometimes be longer than the field of the
display. An arrow pointing outward on the right or left hand side of the display line
indicates that the text continues outside the display. You can move the text with
RIGHT and LEFT by moving the pointer past the end of the line, to allow you to
read the rest of the text.
See Operating Examples on page 30 for an example of manual input.