KEYENCE DV-90 - Manual (Page 218)

9-18 E DV-90-IM
9
PLC Link
9-3 Data Write Timing
„ Step verification, 2-point verification
Yes
No
(Read Error)
Yes
No
(Read Error)
Wait for the data from the code reader
Wait for the data from the code reader
Write “X+18 Read Number”
Write “X+20 Record Number”
Write “X+21 Output Number”
Write “Y1+00 … Data”
Write “Y2+00 … Data”
Write “X+19 Verify Count Value”
Write “X+18 Read Number”
Write “X+09 Data Write Complete”
Write “X+09 Data Write Complete”
Read OK?
Read OK?
Verify data of the first reading and
of the second reading
Read the first data
Read the second data
Verify mode starts