Rockwell Automation 1734-8CFGDLX, Руководство пользователя

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Publication 1734-UM015A-EN-E - November 2009
DeviceLogix Capabilities 65
High/Low Limit
The DeviceLogix High/Low Limit function block limits the input value within
the specified data range. The High/Low Limit function block is outlined in
detail as follows.
IF value of Input > HighLimit
Output = HighLimit
ELSE IF value of Input < LowLimit
Output = LowLimit
ELSE
Output = Input
END
For more information on the Select and High/Low Limit function block, refer
to the DeviceLogix System User Manual, publication
RA-UM003 .
Statistical Category
The statistical category includes a single instruction type: Moving Average.
Moving Average
The DeviceLogix Moving Average function block calculates a time average
value for the input signal.
For more information on the Moving Average function block, refer to the
DeviceLogix System User Manual, publication
RA-UM003 .
Timer/Counter Category
The Timer/Counter category includes the following instruction types:
•
On-Delay Timer
•
Off-Delay Timer
•
Pulse Timer
•
Up Counter
•
Up/Down Counter
IMPORTANT
The module supports only two instances of the Moving Average
(MAV) function block.
Allen-Bradley HMIs