Jetter AG
Control of alphanumeric HMIs | 3
Application-oriented manual – Control of alphanumeric HMIs (LCD) and printers
41
ð
The screen shows the output state for the period set in MR 2819
Monitor
functions - Display duration
. After expiry of the set period, the HMI returns to
the default screen.
Displaying the input
state
To display an input state, proceed as follows:
1.
Press the [I/O] key twice.
ð
The HMI switches to the monitor function screen.
2.
Enter the input number.
3.
Press the ENTER ([↵]) key.
ð
The screen shows the input state for the period set in MR 2819
Monitor func-
tions - Display duration
. After expiry of the set period, the HMI returns to the
default screen.
Modifying a variable
value
To modify a variable value, proceed as follows:
1.
Have the value of the variable displayed (see above).
2.
Press the [=] key.
ð
The system prompts you to enter a new value for this variable. Meanwhile,
the current value is displayed.
3.
Enter a new value.
4.
Press the ENTER ([↵]) key.
ð
The new value is written to the variable. The screen shows variable value for
the period set in MR 2819
Monitor functions - Display duration
. After expiry of
the set period, the HMI returns to the default screen.
Aborting the monitor
screen
If you wish to abort the display of a variable value ahead of the set period (de-
fault: 3.5 s) and return to the default screen, press the ENTER ([↵]) key.
Displaying a variable
again
To switch back to the variable screen from the default screen, press the ENTER
([↵]) key again. The monitor function screen is shown for another 3.5 s.
