KEYENCE DV-90 User Manual
Page 215
9-15
9
E DV-90-IM
PLC Link
DMs in which data is written
• The DMs are assigned with the addresses specified in “X+01 to +03” at the head (Y1 to Y3).
• Making a selection from Data 1 through 3 depends on the “Verify Type” to be used as shown in
the following list. Refer to page 9-17 for details.
* The data may be used when “Output Data” is “Verify Limit”.
* “Data 1” is the data of the “first reading”, “Data 2” is the data of the “second reading”, and “Data 3” is the
data of the “third reading”.
• The maximum number of data digits that can be written is 100.
Even when the code reader has read more than 100 digits, only up to the 100th digit can be written.
If the number of digits in the data is less than 100, it is possible to use the DMs in which no data
is to be written.
• ASCII codes or double-byte codes are written in “Y*+01 to +50”. Note that a double-byte code
occupies two digits.
• The data is written in a DM of “Y*+01 to +50” from the upper byte to the lower byte. When odd-
byte data is written, 00h is written in the last digits (the lower byte of the last data). The previous
data is retained after the last digit.
DM
Description
Data description
Writing from
the DV-90
Writing from
the PLC
Y1+00
Data 1 Number of Digits Check
Area
1 to 100: Number of digits of
Data 1
Yes No
Y1+01
Data 1 Check Area
Data of the first to second digit
Yes
No
Y1+02
Data of the third to fourth digit
Y1+03
Data of the fourth to fifth digit
...
Y1+50
Data of the 99th to 100th digit
Y2+00
Data 2 Number of Digits Check
Area
1 to 100: Number of digits of
Data 2
Yes
No
Y2+01
Data 2 Check Area
Data of the first to second digit
Yes
No
Y2+02
Data of the third to fourth digit
Y2+03
Data of the fourth to fifth digit
...
Y2+50
Data of the 99th to 100th digit
Y3+00
Data 3 Number of Digits Check
Area
1 to 100: Number of digits of
Data 3
Yes
No
Y3+01
Data 3 Check Area
Data of the first to second digit
Yes
No
Y3+02
Data of the third to fourth digit
Y3+03
Data of the fourth to fifth digit
...
Y3+50
Data of the 99th to 100th digit
Verify Type
Data 1
Data 2
Data 3
Verify Normal
Yes
Yes/No(*)
Yes/No(*)
Verify Active
Yes
Yes/No(*)
Yes/No(*)
Verify Step,
Verify 2 points
Yes
Yes
No
Verify 3points-A
Yes
Yes
Yes
Verify 3points-B
Yes
Yes
Yes