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Siemens simatic s7-400 FM 450-1 - Page 92

Siemens simatic s7-400 FM 450-1
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Modes, settings, parameters and commands
8.12 Initiating a process interrupt
Counter module FM 450-1
92 Manual, 02/2014, A5E03648739-02
Lost hardware interrupt
If an event occurs that is to trigger a hardware interrupt and the same previous event has not
yet been acknowledged, no further hardware interrupt is triggered; the hardware interrupt is
lost.
This can result in the diagnostic interrupt "hardware interrupt lost" depending on the
parameters assigned.
Default setting
No hardware interrupt is assigned in the default setting.

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