Micromod Micro-DCI: 53MC5000 Multi-Loop Process Controller Installation - Manual (Page 69)

SCAN INDEX:
This parameter SCAN (B01) determines the frequency of execution for the operation FIX selected.
The repetition period equals B01 x 50 mS. This value should be set to the smallest value possible
which doesn’t cause OVR (B04) to increment.
SCAN FILE OVERRUN COUNTER:
This parameter OVR (B04) is incremented whenever the execution of the control algorithm ex-
ceeds the repetition period specified in SCAN (B03). Each time an increment occurs,one pass of
the control algorithm is skipped. In order to stop overruns, increase the value of SCAN.
LINK LIST LOAD:
The LLO parameter (B16) loads the Control Strategy Wirelists. Configuring this value forces the
FIX to 0 and installs the selected wirelist and any associated database changes, then returns the
value to 0. If a non-existent control strategy is selected the default wirelist is loaded.
DISPLAY PROGRAM:
The DSPL parameter (B05) designates which display is presented on the first screen.
DISPLAY BRIGHTNESS INDEX:
The BRIGHT parameter (B12)controls the display screen intensity. Values from 0 to 7 determine
brightest to dimmest intensity.
BACKGROUND PROGRAM:
The BACK parameter (B08) is used to implement the E-Z TUNE algorithm. When set to "1"
EASY-TUNE operation is initiated.
BACKGROUND SCAN INDEX:
The BSCAN parameter (B06) directs how often the display is renewed and the period for executing
the EASY-TUNE algorithm when active. The period realized equals B06 x B03 x 50mS.
BACKGROUND OVERRUN COUNTER:
The BOVR parameter (B07) is incremented whenever the execution time of the display program
and background program exceed the repetition rate realized by SCAN x BSCAN. Each time an in-
crement occurs, one pass of the display update and background program is skipped. In order to
stop overruns, increase the value of either SCAN or BSCAN.
TIME/DATE:
Time functions are provided by parameters:
Time Parameter
Seconds B257
Minutes B258
Hours B259
MODULAR CONTROLLER QUICK START
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