Sutron Xpert2, Руководство по эксплуатации и обслуживанию

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PtCtrl (Point Control)
Inputs
Point
Enable 1
Enable 2
Outputs
Move +
Move -
Stop
Status
Description
The Point Control block is used to control the position of some device using a feedback control
loop. The current position of the device is “wired” to the input
Point . When the position of the
device differs more than a user-defined amount, the outputs are set to attempt to bring the
position of the device back to the desired point.
The control loop executes on a schedule set by the user. The Offset and Interval properties
determine when and how often, respectively, the loop executes. Each is specified in seconds
relative to a 24-hour clock.
Both enable inputs must be true for the control loop to execute. When Enable 1 is false, the
control loop skips execution and may execute at the next scheduled interval. However, when
Enable 2 is false, the control loop will no longer be scheduled until recording is restarted,
regardless of its subsequent states. Also, when Enable 2 is false, the Status output is set to false
(it is set to true at all other times).