Bcd Value Read - Omron CQM1 Operation Manual

BCD Value Read

Reference
6-4 BCD Value Read
Operation
1,2,3...
or the comparison result flags of the input word are turned ON or OFF accord-
ing to the comparison result processed by the Unit.
After the above processing, the sampling is performed with side A treated as
the reference side. As the object moves, the Unit measures side B of the
object and the scaled conversion data indicates the difference between the
sides A and B.
Note 1. The forced-zero shift function is not effective when the timing hold is set to
peak-to-peak hold.
2. The zero shift value stored in the RAM will be lost when the Unit is turned
OFF. The RAM should be used to store the zero shift value if the zero shift
function is frequently used during operation. The zero shift value stored in
the nonvolatile memory will not be lost when the Unit is turned OFF. The
zero shift value stored in the nonvolatile memory may not be, however,
used more than 100,000 times. Decide where to keep the zero shift value
according to the application.
The Unit ignores zero input when zero reset input is ON. Use the operation
mode B set command to select the RAM or nonvolatile memory to store the
zero shift value.
The present scaled conversion data can be read in BCD only when the timing
hold in operation mode A is set to normal.
Use the present value read command and take the following steps to read the
present scaled conversion data in BCD with the Programming Console.
1. Set CC00 to the output word.
2. A000, which means positive, or A00F, which means negative, will appear
under the input word display according to the present scaled conversion
data.
C
SHIFT
CHG
3. The present scaled conversion data will appear in approximately 0.5 sec-
onds.
Output word Input word
? ?
%&
C
C C
A
2 2
0
SHIFT
? ?
++ )
? ?
++
Section 6-4
Binary
A
0
WRITE
Signed
data
Numeric
value
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