Micromod MOD: 1800P - MOD 30ML Identity Module (Version 2) Algorithms, Tables and Sequential Logic Functions - Manual (Page 150)

Logic Functions - Book 2
CONFIGURING THE SEQUENCE BLOCK
11-4
Placing the Loop Compound and Sequence Block
A Loop Compound ( Loop Cpd) must be placed in the workspace to contain the function
blocks. The compound has a single Loop Block, and the functions within the loop block are
part of the scan group for the loop. Place the Loop Compound symbol and sequence block
using the instructions in Table 11-2.
Table 11-2. Loop Compound and Sequence Block Placement Procedure
Step Procedure Comments
1 From the Algorithms window on the lower left side of the
display, select Loop Cpd (loop compound) and place it
in the workspace. A compound symbol appears.
2 Double click to query the loop compound. The loop
compound identification window appears.
3 Select the Name field and type the name SEQLOOP.
4 Select the OK button to close the window.
5 Double click to query the IF block. The Interface Block
edit display appears.
6 Select the User Tag field on the Startup menu and type
the name KETSEQ.
7 Select the Group Scan Interval field for Group 1 on the
Execution menu and type 1 second (00:00:01.000). This entry specifies that all data in
the kettle sequence loop is to be
scanned once each second.
8 Select OK to close the display. To allow the strategy developed in
this example to run on any
instrument for demonstration
purposes, set the Run on I/O
Mismatch attribute to YES before
closing the display.
9 Select then right click on the SEQLOOP compound and
select Open Compound. A loop block (LP) and
compound signals menu appear in the workspace. Close the Compound Window by
clicking on the X or using the View
menu.
10 Double click to query the LP block. The Loop Block edit
display appears.
11 Select the Name field and type the name SEQLOOP. The default entries for all loop block
attributes are acceptable for this
application example. Note that the
Scan Group is number 1.
12 Select OK to close the edit display. The Loop Block
appears in the workspace with the name SEQLOOP.
13 From the Algorithms window, select SEQ and place it in
the center of the workspace.
14 Double click to query the SEQ block. The Sequencer
Function Block edit display appears.
15 Select the Name field and type the name STEPMGR.
Do not close the display This edit display is left open because
it provides access to the input,
output, and step definition displays
which are used in the procedures in
Tables 11-3, 11-4 and11-6...If Enter
is selected at this point, the
workspace display returns. It is then
necessary to query the SEQ block for
return to the block edit display to start
the next procedure (Table 11-3).