Advantech WISE-4671 User Manual page 49

FSV (Fail-Safe Value): The digital output channels can be set to generate a
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predefined value when communication between a host controller and a WISE
digital module is broken. To do this, select the FSV check box for the module to
set the output channel to "logic high" when the WDT times out. If the FSV check
box is clear, the module will set the output channel to "logic low" if the WDT
times out. To set the module so that the FSV is triggered by the WDT, go to Net-
work App on the Configuration page to enable Communication WDT Trigger
FSV for all of the module's output channels, and then set the communication
WDT mode to Communication WDT. The default host idle time is 720s, and
this can be configured by entering a value in the Host Idle (Timeout Sec) box
(unit: s) in this page.
Pulse Output: In pulse output mode, the selected digital output channel can
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generate a continuous pulse train or finite pulses. The pulse width can be set by
entering a value in the Low Signal Width and High Signal Width boxes on the
Configuration page (increment: 0.1 ms). The frequency and duty cycle of the
pulse output signal will be calculated automatically and displayed in the Output
frequency and Duty cycle boxes, respectively. Whether a continuous pulse train
or finite pulses will be generated is determined by clicking Continuous or Fixed
total, respectively. The number of pulses to be generated can be set by entering
the value in the box to the right of Fixed total. After the pulse output mode has
been selected, click Start or Stop to generate or stop the pulse output.
39 WISE-4671 User Manual