Chapter 6. Service Request Function
GFK-2950C February 2018 329
SVC_REQ 50 Example
The following logic is used in a block that is called once in a while. The screen shot was taken
between calls to the block. The second rung of logic calculates the number of seconds that have
elapsed since the last time the block was called. The third rung calculates the number of
nanoseconds to be added to, or subtracted from, the number of seconds. The first rung saves the
previous value of novum[0] and novum[1] into vetum[0] and vetum[1] before the second rung of
logic places the current time values in novum[0] and novum[1].
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