Omron NJ501-1500 Reference Manual page 927

Program P2
LD
Internal
Variable
Variables
ReadReq
OutDat
External
Variable
Variables
GTable1
ReadReq
USINT#1
GTable1.Index
USINT#1
ST
Internal
Variable
Variables
ReadReq
OutDat
External
Variable
Variables
GTable1
// Detect read request.
IF (ReadReq=TRUE) THEN
// Execute Lock instruction.
Lock(USINT#1);
IF (GTable1.Index>INT#0) THEN
GTable1.Index:=GTable1.Index-INT#1;
OutDat
END_IF;
// Execute Unlock instruction.
UnLock(USINT#1);
ReadReq:=FALSE;
END_IF;
NJ-series Instructions Reference Manual (W502)
Data type Comment
Initial value
BOOL Read request
False
Read data
LREAL 0.0
Comment
Data type
Record storage structure
USERTABLE
Lock
EN ENO
Index
>
EN
In1
GTable1.Index
In2
INT#0
GTable1.Record[Gtable1.index]
Unlock
EN ENO
Index
ReadReq
R
Comment
Data type
Initial value
Read request
BOOL False
Read data
LREAL
0.0
Comment
Data type
Record storage structure
USERTABLE
:=GTable1.Record[GTable1.Index];
2 Instruction Descriptions
Dec
EN ENO
InOut
MOVE
EN ENO
In Out OutDat
2
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