Micromod MOD: 30ML Display Script Guide - Manual (Page 89)

MOD 30ML Display Guide
Application Examples
5.9 Example 9: Sequence Operation & Control
All the functions of the MOD 30ML Sequence Block can be accessed through the front
display. This example illustrates how to build a display that shows the active step by
name, and allows the user to issue RUN, STOP, and RESET commands to the sequence
itself. It also indicates whether the sequence is in automatic or manual mode, and allows
manual step selection by the operator.
In this example, if the sequence is reset while in the middle of a sequence, pressing the
start button (STR) puts the Sequence block into RUN status and the sequence will restart.
The resulting display is shown in the next figure:
Figure 5 .28.
Sequence
Operation Display
Line 1 displays the tag name (in this case, SEQUENCE).
Line 2 displays the Sequence block status as either RUN,
RESET or FROZEN. When in RUN the Sequence block is
ready to execute the configured sequence. When RESET is
selected the Sequence block skips directly to the step
designated as the reset step. Selecting STOP causes the
Sequence block to go to FROZEN status and hold in the
current step until status is changed to RUN.
Line 3 shows the Sequence block mode as either automatic
(AUT) or manual (MAN), selected by the AUT and MAN
keys.
Line 4 displays STR (START). Pressing the R/L key next to
this line puts the Sequence block in RUN status and the
sequence starts. As each step expression in the Sequence
block is satisfied, the sequence will advance to the next step.
The sequence will start any time the start key is pressed,
provided the sequence is at the first step.
Line 5 displays the word CMD (COMMAND), unless the
Sequence block is in manual mode, in which case Line 5 will
show STP (step) to indicate step can be manually selected.
Pressing the SCROLL key when Line 5 shows CMD changes
the Sequence block status between RUN, FROZEN or
RESET on Line 6; the UP/DOWN arrow keys are used to
make a selection. Pressing the SCROLL key again displays
the active step.
Line 6 shows the active step under normal operation.
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