Omron CJ1W-SCU32 Operation Manual page 243

User-defined variables (To be defined before or when creating a program)
Name
Trigger
LastTrigger
OperatingStart
Operating
InPort
SendDat
SerialSend_instance
Device variables for CJ-series Unit (To be created on the I/O Map View
window after the unit configuration is created)
Name
Barcode_P2_NopSe
rialSendExecSta
Program Example
//Detection of rising edge of trigger
IF ( (Trigger=TRUE) AND (LastTrigger=FALSE) AND (_Port_isAvailable=TRUE) AND (Barcor
de_P2_NopSerialSendExecSta =FALSE) AND (SerialSend_instance.Busy=FALSE)) THEN
OperatingStart:=TRUE;
Operating:=TRUE;
END_IF;
LastTrigger := Trigger;
//Communication parameters settings and SerialSend instruction initialization
IF (OperatingStart=TRUE) THEN
SerialSend_instance(Execute:=FALSE); //Instance initialization
StringToAry(In:='@READ', AryOut:=SendDat[0]);
InPort.UnitNo := _eUnitNo#_CBU_No00; //Serial Communications Unit, Unit number 0
InPort.PhysicPortNo := USINT#2;
OperatingStart:=FALSE;
END_IF;
//SerialSend instruction execution
IF (Operating=TRUE) THEN
SerialSend_instance(
Execute:=TRUE,
Port := InPort,
SrcDat := SendDat[0]
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
Data type Factory setting
BOOL False
BOOL False
BOOL False
BOOL False
_sPORT (UnitNo:=_CBU_No0
0, PhysicPortNo:=0)
ARRAY[0..4] OF BYTE [5(16#0)]
SerialSend
Data Factory Allocated address
type setting
BOOL --- IOBus://rack#0/slot
#
0/P2_NopSta/P2_N
opSerialSendExec-
Sta
//Serial port 2
//Port specification
//Send data
6 No-protocol Mode
Allocated
address
(AT)
---
---
---
---
---
---
--- ---
Comments
(AT)
Port 2:
SerialSend Execut-
ing Flag
Details
Execution conditions
Trigger value of previ-
ous task period
Start processing
Processing
Port specification
Send data
---
Details
This flag is TRUE
while execution of
the instruction is in
progress.
6-15
6