Counter operations
(continued)
I 4.1
R S
CQ
CI
+
binary
16 bits
CD
BI
DE
R
Q
C1
CU
S
CV
Owing to the two separate edge flags for CU and CD,
a counter with two different inputs can be used as an
up/down counter.
The value of the addressed counter is incremented
by "1" to a maximum value of 999. The function CU
is only executed on a positive edge (from "0" to "1")
of the logic operation programmed before CU. The
flags necessary for edge evaluation of the counter
inputs are incorporated in the counter word.
I 4.1
A
I
4.1
CU C
1
CD
DU
DE
R
Q
C1
CU
S
CV
I 4.1
Logical/circuit diagram
STEP 5 representation
Ladder
Control system
Statement
list
Count up
diagram
flowchart
Programming Examples in the STL, LAD and CSF Methods of Representation
CPU 948 Programming Guide
C79000-G8576-C848-04
3 - 45
Содержание CPU 948
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Страница 72: ...Data Blocks CPU 948 Programming Guide 2 42 C79000 G8576 C848 04 ...
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Страница 308: ...Contents CPU 948 Programming Guide 7 2 C79000 G8576 C848 04 ...
Страница 324: ...Examples of Parameter Assignment CPU 948 Programming Guide 7 18 C79000 G8576 C848 04 ...
Страница 326: ...Contents CPU 948 Programming Guide 8 2 C79000 G8576 C848 04 ...
Страница 370: ...Addressable System Data Area CPU 948 Programming Guide 8 46 C79000 G8576 C848 04 ...
Страница 372: ...Contents CPU 948 Programming Guide 9 2 C79000 G8576 C848 04 ...
Страница 404: ...Operations with the Base Address Register BR Register CPU 948 Programming Guide 9 34 C79000 G8576 C848 04 ...
Страница 486: ...Contents CPU 948 Programming Guide 11 2 C79000 G8576 C848 04 ...
Страница 522: ...PG Functions via the S5 Bus CPU 948 Programming Guide 11 38 C79000 G8576 C848 04 ...
Страница 524: ...Contents CPU 948 Programming Guide 12 2 C79000 G8576 C848 04 ...
Страница 538: ...Contents CPU 948 Programming Guide 13 2 C79000 G8576 C848 04 ...
Страница 546: ...List of Key Words CPU 948 Programming Guide Index 6 C79000 G8576 C848 04 ...