YME Engineering Course

I. REGULATORY CONTROL FUNCTION BLOCKS
♦ Index
This function displays two indexes in the manipulated output value (MV)
scale on the operation monitoring window of the operation and monitoring
function. These are called the manipulated output indexes. By setting
these indexes at the operable limits of the manipulated output values
(MV), they can be used as manipulation guides in the manual mode, or as
guides for verifying normal status in the automatic mode. For a Regulatory
Control Block with manipulated output value (MV), both the high output
limit (OPHI) and low output limit (OPLO) indexes can be set on the tuning
window. These limits are displayed in the operation and monitoring
window of the operation and monitoring function. The indexes may be
defined on the Function Block Detail Builder.
• Set Indexes: Selectable from “Yes” and “No.”
Default is “Yes.”
♦ Scale-Division
The scale divisions may be specified as 1, 2, 3, 4, 5, 7 divisions. Autodivision
may be used.
♦ Upper Equipment Name
The upper equipment name refers to the name of the equipment object
located in the next upper layer of an equipment object in a plant hierarchy.
Specifying an upper equipment name via the Plant Hierarchy Builder
determines the location of an equipment object in the plant hierarchy. Only
custom equipment names can be specified as the upper equipment name.
I.3.3 INPUT
♦ Process variable range; High and low limits
Numerical values of seven digits or less, where the sign or decimal point
takes one digit each. The default is “100.0” for the upper limit and “0.0” for
the lower limit.
♦ Engineering unit
Consists of six or less standard-width characters or three double-width
characters. The default is “%.”
♦ Input Signal Filtering
The digital filter may be defined for each function block in “Input Signal
Filtering” on the Function Block Detail Builder. Input Signal Filtering:
“None,” “Auto,” “1,” “2” and “3.” The default setting is “Auto.”
When Auto is selected; if the IN terminal is connected to I/O module other
than communication module, “Digital Filter Coefficient 1” is used. If the IN
terminal is connected to neither communication module nor I/O module,
no filtering process is performed.
YME Training Center I-11
CS3KR3-ENG 1 ST Edition Jan 2002