Toshiba LF620F Instruction Manual page 126

Electromagnetic flowmeter converter
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(2) The following is an example for totalizer flow counts output in which the totalizer is reset with an
external signal (when one-shot pulse output mode is set).
Counter Reset/Start signal
(DI detective level is L).
Totalizer flow counts
0
Counter reset
Preset point output
For the totalizer is reset to zero,
the preset output goes OFF.
* When the Reset/Start signal is in L level (DI counter control signal level: L), the totalizer is reset to
zero and stops counting. When the Reset/Start signal goes to H level, the totalizer starts counting.
The preset point output goes ON when the totalizer counts reaches the preset point. The output
goes OFF when the totalizer is reset to zero or when it takes the time set pulse width from the
output goes ON.
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Counter start
For it takes the time set pulse width from
the output goes OFF
Input/Output signal time chart
- 125 -
6 F 8 A 0 9 2 8
H level input
L level input
Preset point
Counter reset
ON
OFF

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