Omron CQM1H-SCB41 Operation Manual page 323

V500/V520 Bar Code Reader Protocol
Protocol Configuration
The configuration of the V500/V520 Bar Code Reader Protocol is shown below.
Sequence Communications
No. sequence name
350 BCR read start
351 BCR read stop
352 Data read
353 Complete data read
354 BCR function write
(V500)
355 BCR function read
(V500)
356 Log data output request
(V500)
357 Preset data set (V500)
358 BCR connection confir-
mation (V500)
359 Log data clear (V500)
360 Continuous data read
(scan) (V500)
361 Continuous data read
(interrupt) (V500)
362 BCR initialize
363 Continuous data read
(scan) (V520)
364 Continuous data read
(interrupt) (V520)
365 General-purpose com-
mand 1
366 General-purpose com-
mand 2
Note Ladder Interface Settings
YES: User settings are required for the 2nd and 3rd operands of PMCR.
NO: Send word allocation:
Receive word allocation: Set the constant 0000 for the 2rd operand (S).
308
Function
Instructs the Reader to start a BCR read.
Instructs the Reader to stop a BCR read.
Data read by the Reader is received and
saved in the receive words.
Instructs the Reader to start a read. After
the data read by the Reader is received and
saved to the receive words, reading is
stopped.
Writes the operation mode and read func-
tions.
Reads the operation mode and read func-
tions.
Requests output of log data sent to host.
Writes preset data.
Confirms if the Reader is correctly set.
Clear log data.
Performs the following operations repeat-
edly: starts reading, receives data read by
the Reader, saves the data to the receive
words by the scan method.
Performs the following operations repeat-
edly: starts reading, receives data read by
the Reader, saves the data to the receive
words by the interrupt method (interrupt
No.100).
Clears the log, confirms BCR connection,
and sets BCRs.
Performs the following operations repeat-
edly: starts reading, receives data read by
the Reader, saves the data to the receive
words by the scan method.
Performing the following operations repeat-
edly: starts reading, receives data read by
the Reader, saves the data to the receive
words by the interrupt method (interrupt
No.100).
Used to send data of a specified data
length, and receive only ACK as the receive
data.
Used to send data of a specified data
length, and receive ACK together with the
return of other receive data. The frame for-
mat of the receive data, however, has to
contain STX and ETX.
Set a dummy word address for the 3rd operand (D).
Appendix J
Ladder interface
Send word Receive word
allocation allocation
No No
No No
No Yes
No Yes
Yes No
No Yes
Yes Yes
Yes No
No No
No No
No Yes
No Yes
Yes No
No Yes
No Yes
Yes No
Yes Yes