Jetter JC-120MC, Руководство пользователя

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Jetter AG 353
JC-120MC Programming
10.9.7 Querying the keys
This chapter gives a description on how HMI keys can be queried by the
controller.
The controller maps the keys of the HMIs to the following variables:
 Special flags
 Bits in registers which are overlaid to special flags
Flags and register bits assume the following states:
Key Special flag/register bit
Pressed TRUE/1
Not pressed FALSE/0
While inputting numerical values, the keys used for this are not mapped to the
key flags and register bits.
Key Description
[0] ... [9] Entering a numerical value
[.] or [,]
Entering a decimal point or decimal comma
[-]
Entering a negative/positive numerical value;
you can press the key any time during input.
[C] Clearing previous entries;
Displaying a suggested value a second time
ENTER ([ ↵] ) Terminating the input process; accepting the value
Topic Page
Assigning keys ............................................................................................ 354
Registers of basic flag numbers ................................................................. 358
Introduction
Mapping keys
Restrictions
Keys to be used for
entering numerical
values
Contents