No execution of the function is done. So the first push is used to activate the
presentation only.
• The next key push is handled as activate function and the output signal of the
function block is set.
• The operation mode of the function key is defined in Parameter Setting tool
(pulse, toggle).
Parameter Setting tool and function block configuration
The operation mode of the function keys and the LEDs must be defined per key and
LED in Parameter Setting tool.
The function key can operate as:
• Pulsed signal
• Each push forces a pulse of a configured time.
• The pulse time can be set in Parameter Setting tool.
• The default pulse time is 200 ms.
• Toggle signal
• Each push changes the state of the signal: OFF-ON-OFF-ON-OFF...
• The default position after power up or reset is OFF.
• Menu shortcut
• When pressing a key configured for that purpose, the function key panel is
hidden and LHMI opens directly in the configured menu.
IEC09000656 V1 EN
Figure 44: LHMI: Function key operation mode
The LEDs have a number of different operation modes, see Figure 45:
• General definitions
• Each LED can illuminate in one of three colors: RED, YELLOW, GREEN.
• Only one color is illuminated at a time.
• The priority for illumination and the color is linked.
Section 6 1MRK 511 284-UEN A
Local HMI engineering
66 650 series
Engineering manual
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