Sutron Xpert2, Руководство по эксплуатации и обслуживанию

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Accumulator (Accum)
Inputs
Data – the data to accumulate
Enable – enable/disable the accumulation; when input is disconnected or input value is non-zero,
accumulation is enabled
Outputs
TAccum – Trigger accumulation. Output when the running accumulation surpasses the threshold
value.
Accum – Accumulation since last scheduled reset.
Trigger – Trigger. Output set to 1 when the running accumulation surpasses the threshold value.
PTotal – Previous total which is value of accumulation at scheduled reset.
Description
The Accum block is used to accumulate input data and to set outputs based on the current
accumulation. This block is typically used as a part of a system to monitor and control a water
sampler where blocks before the accumulator measure level and flow, compute discharge, and
compute discharge*time. This block then accumulates the total flow and sets a trigger every time
a selected amount of flow has been registered. The total flow is reset to 0 at a user set schedule,
typically daily. The trigger typically connects to a pulse output block.
Use the Time and Interval properties to set the schedule at which the block resets the
accumulation.
Use the Threshold property to specify the value of accumulation that, when reached, is a signal
to set the trigger output to 1.
Check “Include negative values” to allow negative input values to be included in the
accumulation. When not checked, negative input values are not included.