Siemens LC 500 用户手册
Page 38
SITRANS LC 500 – INSTRUCTION MANUAL
7ML19985GE01
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User Int
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The rotary switch
The rotary switch gives you access first to the menu level and then to the menu item.
The rotary switch has a small slot where the current position can
be read. The positions are read clockwise, and in increasing order:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F. The position wraps from F
to 0.
be read. The positions are read clockwise, and in increasing order:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F. The position wraps from F
to 0.
The switch can be turned in either direction. When it is turned to a
new position, the LCD displays the new menu selection for 1
second, followed by the data for that position.
new position, the LCD displays the new menu selection for 1
second, followed by the data for that position.
Certain menu selections return more than one piece of information
per item: in that case the display alternates between the two
values, for example, PV Value / Fault status.
per item: in that case the display alternates between the two
values, for example, PV Value / Fault status.
The push-buttons
The push-buttons allow you to change the value of a menu item. Use the RED (+) button to
adjust a value up; the BLUE (–) button to adjust a value down; or press both
simultaneously for special applications. For a table showing the combinations of rotary
switch positions and button presses used to carry out different functions, see page 41.
adjust a value up; the BLUE (–) button to adjust a value down; or press both
simultaneously for special applications. For a table showing the combinations of rotary
switch positions and button presses used to carry out different functions, see page 41.
Access to a menu item:
1.
First select Menu LEVEL 0 or Menu LEVEL 1.
2.
Turn the rotary switch to the number of the desired item.
Adjusting the value
1.
Select a menu item.
2.
Press the RED (+) or BLUE (–) push button to adjust the value up or down:
acceptance is indicated when the left-most colon on the LCD appears. (You have to
press longer than the debounce time to have the action accepted: the debounce
time varies according to the menu item selected.)
press longer than the debounce time to have the action accepted: the debounce
time varies according to the menu item selected.)
Notes:
•
For a detailed description of each menu item, see Appendix A, page 54: the
functions of each menu item are illustrated in application examples on page 93
to 94.
functions of each menu item are illustrated in application examples on page 93
to 94.
•
Change over from Menu LEVEL 0 to Menu LEVEL 1 is only possible at position 0,
from menu item 00 to 10 or vice-versa. (See page 42 for detailed instructions.)
from menu item 00 to 10 or vice-versa. (See page 42 for detailed instructions.)
Notes:
•
The push buttons are preset with a delay called the debounce time.
•
Keeping one or both buttons pressed continuously will trigger an auto-repeat in
some menus.
some menus.
0
12
345
67
89A
BCDEF