WESTLOCK CONTROLS CORPORATION
280 N. MIDLAND AVE., STE. 258, SADDLE BROOK, NJ 07663 TEL: 201-794-7650 FAX: 201-794-0913
www.westlockcontrols.com
10/5/2013
TECH-477/D.W.O. 21424
Page 135 of 206
9.9.4.2 Function Block Parameters
OUT
Output Value: Process variable in engineering units in AUTO mode. In
MAN and RCAS modes, this is the value specified by the
operator/engineer in LO.
Status (Output): Current status of the Output.
PV_SCALE
Upper Value: Defines the operational upper range value of the input
value (100%) in engineering units.
Lower Value: Defines the operational lower range value of the input
value (0%) in engineering units.
OUT_SCALE
Upper Value: Upper value (Output Signal Range): Upper range value of
the process variable (100%) in engineering units.
Lower Value: Lower Value (Output Signal Range): Lower range value of
the process variable (0%) in engineering units.
Unit (Output): The engineering unit that the output value is reported in.
Decimal Point: Upper value (Output Signal Range): Upper range value of
the process variable (100%) in engineering units.
LIN_TYPE
Flow Type: Set the type of set point characterization curve. The
following options are available:
-
Linear
: the analog output setpoint from the analog output is set
directly to the servo PID setpoint;
-
Equal Percentage
: the analog output setpoint is used as a
parameter for the equal percentage function to set the servo PID
setpoint;
-
Quick Opening
: the analog output setpoint is used as a parameter
for the quick opening function to set the servo PID setpoint;
-
User defined (table):
the analog output setpoint is characterized
using a table defined by the user to set the servo PID setpoint. (
See
the Characterization Curve section to get details how to enter this
table).
Channel
Channel: The number of the hardware channel that is connected to
this function block. It defines the associated transducer
block.
PV_FTIME
Filter Time Const: This parameter contains the time constant for the rise time