Omron NJ501-1500

2-831
2 Instruction Descriptions
NJ-series Instructions Reference Manual (W502)
SD Memory Card Instructions
2
FileGets
Execution condition
Value of Trigger from previous task period
Processing started.
Processing
Integer data
Stage change
InDat[] element index
File ID
Variable Data type Initial value Comment
ST
IF ( (Trigger=TRUE) AND (LastTrigger=FALSE) AND (_Card1Ready=TRUE) ) THEN
OperatingStart:=TRUE;
Operating :=TRUE;
END_IF;
LastTrigger:=Trigger;
IF (OperatingStart=TRUE) THEN
FileOpen_instance(Execute:=FALSE);
FileGets_instance(Execute:=FALSE);
FileClose_instance(Execute:=FALSE);
Stage :=INT#1;
Index :=INT#0;
OperatingStart:=FALSE;
END_IF;
IF (Operating=TRUE) THEN
CASE Stage OF
1 :
FileOpen_instance(
Execute :=TRUE,
FileName:=’ABC.csv’,
Mode :=_READ_EXIST,
FileID =>Fid);
IF (FIleOpen_instance.Done=TRUE) THEN
Stage:=INT#2;
END_IF;
IF (FileOpen_instance.Error=TRUE) THEN
Stage:=INT#99;
END_IF;
// Start sequence when Trigger changes to TRUE.
// Execute instructions.
// File name
// Read file.
// File ID
// Normal end
// Error end
// Initialize instance.
// Open file.
Trigger
LastTrigger
OperatingStart
Operating
InDat
Stage
Index
Fid
FileOpen_instance
FileGets_instance
FileClose_instance
False
False
False
False
[1000(0)]
0
0
16#0
BOOL
BOOL
BOOL
BOOL
ARRAY[0..999] OF INT
INT
INT
DWORD
FileOpen
FileGets
FileClose
_Card1Ready BOOL SD Memory Card Ready Flag
Variable Data type Comment
Internal Variables
External Variables