Omron CJ1W-SCU32 Operation Manual page 402

A Standard System Protocol
Sequence Communications
No. sequence name
364 (016C) Continuous data read
(interrupt) (V520) (*)
365 (016D) General-purpose com-
mand 1
366 (016E) General-purpose com-
mand 2
* Sequences No. 361 and No. 364 (Continuous Data Read with Interrupt) are not supported by the CS1W-SCU@@(-V1) and
CJ1W-SCU@@(-V1) Serial Communications Units. A protocol syntax error will occur if an attempt is made to execute either
sequence with the Serial Communications Unit.
Note The hexadecimal equivalents of sequences numbers are given in parentheses.
Ladder Interface Settings
YES: User settings are required for the 3rd and 4th operands of PMCR(260).
NO: Send word allocation:
Receive word allocation: Set the constant 0000 for the 4th operand (D).
BCR Read Start (Sequence No. 350 (Hex 015E))
This sequence instructs the Bar Code Reader to start reading.
Send Data Word Allocation 3rd Operand of PMCR(260))
None.
Receive Data Word Allocation (4th Operand of PMCR(260))
None.
BCR Read Stop (Sequence No. 351 (Hex 015F))
This sequence instructs the Bar Code Reader to stop reading.
Send Data Word Allocation (3rd Operand of PMCR(260))
None.
Receive Data Word Allocation (4th Operand of PMCR(260))
None.
R-68
Function
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 the constant 0000 for the 3rd operand (S).
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
Ladder interface
Send word Receive word
allocation allocation
No Yes
Yes No
Yes Yes