Omron CJ1W-EIP21 Operation Manuals page 230

8 Message Communications
IF (DoCIPTrigger=TRUE) THEN
CASE Stage OF
1 :
CIPOpen_instance(
Execute
TimeOut
RoutePath :='RoutePathDat');
IF (CIPOpen_instance.Done=TRUE) THEN
Stage
ELSIF (CIPOpen_instance.Error=TRUE) THEN
Stage
END_IF;
2 :
CIPWrite_instance(
Execute
Handle
DstDat
Size
SrcDat
IF (CIPWrite_instance.Done=TRUE) THEN
Stage
ELSIF (CIPWrite_instance.Error=TRUE) THEN
Stage
END_IF;
3 :
CIPRead_instance(
Execute
Handle
SrcDat
Size
DstDat
IF (CIPRead_instance.Done=TRUE) THEN
Stage
ELSIF (CIPRead_instance.Error=TRUE) THEN
Stage
END_IF;
8-24
:=TRUE,
:=UINT#20,
:=INT#2;
:=INT#10;
:=TRUE,
:=CIPOpen_instance.Handle,
:='WritingDat',
:=UINT#1,
:=WriteDat);
:=INT#3;
:=INT#20;
:=TRUE,
:=CIPOpen_instance.Handle,
:='OriginalDat',
:=UINT#1,
:=ReadDat);
:=INT#4;
:=INT#30;
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
// Open CIP class 3 connection.
// Timeout time: 2.0 s
// Route path
// Normal end
// Error end
// Request writing value of variable.
// Handle
// Source variable name
// Number of elements to write
// Write data
// Normal end
// Error end
// Request reading value of variable.
// Handle
// Source variable name
// Number of elements to read
// Read data
// Normal end
// Error end