Omron V530-R150E-2 Operation Manual page 80

Connection Examples
Process Flow
Note If a reading trigger is turned ON before the data is downloaded,
the V530-R150 will operate as shown below and the previous
reading data will be overwritten.
START
Host
Reading
trigger input
Polling command
to output data
Data output from
unit number 00
Data output from
unit number 01
Data output from
unit number 02
Completion of
data output
68
Set the unit numbers for each of the V530-R150s.
(In this example, the unit numbers are set to 00, 01, and 02.)
After the V530-R150 reads a code, it holds the data without
outputting it. Polling commands are sent out in order from the
host and the data is downloaded.
V530-R150
Unit number 00
Reads code
@RD 00(CR)
Data response
00ABCDEFG...(CR)
@RD 01(CR)
01ABCDEFG...(CR)
@RD 02(CR)
02ABCDEFG...(CR)
V530-R150 V530-R150
Unit number 01 Unit number 02
Reads code
Data response
Section 4-5
Reads code
Data response