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Section 6-1
Basic PID (Block Model 011)
The increment is set to 0, and actual increase or decrease of the value is performed from the macro.
Button
Increment
100 (1%)
10 (0.1%)
−10 (−0.1%)
−100 (−1%)
A Select Shape graphic is used for the Button display.
The upper and lower limits of the data range are ±320.00%. These buttons
are not set to loop back when the upper or lower limit is exceeded.
When increasing or decreasing the MV value, the tag ITEM A/M_SW (ITEM
086) is referenced. If the value is 1, a message is displayed indicating that the
MV value cannot be set, and input is disabled.
This function is set using the following macro as a Touch OFF Timing macro
for Word Buttons.
READCMEM ($B32761,[A/M_SW],1) ;
if ($B32761==1)
MSGBOX (“Cannot set.”,”MV change”,0) ;
RETURN (1) ;
READCMEM ($W2047,[MV],1) ;
$W2047=$W2047+10; *1*1: +10 is the increment/decrement for each button.
IF ($W2047 > 32000)
$W2047 = 32000;
ENDIF
IF ($W2047 < -32000)
$W2047 = -32000;
ENDIF
WRITECMENE ([MV],$W2047,1) ;
endif
25: MV Bar Scale Display
The MV bar display and MV index position include fixed marks in the graphic
indicating 0%, 50%, and 100%.
The following diagram shows a face plate for Basic PID built using the Face
Plate Auto-Builder for NS in a 640×480 screen resolution.
The whole face is built using 458×142 dots.
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