Nx_Readobj - Omron NY532-5400 Reference Manual

NX_ReadObj

The NX_ReadObj instruction reads data from an NX object in an EtherCAT Coupler Unit or NX Unit.
Instruction Name
NX_ReadObj Read NX Unit
Object
Variables
Name Meaning
UnitProxy Specified Unit
Obj Object param-
eter
TimeOut Timeout time
ReadDat Read data
* If you omit the input parameter, the default value is not applied. A building error will occur.
Bit strings
UnitProxy
Obj
TimeOut
ReadDat OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK
Function
The NX_ReadObj instruction reads data from an NX object in an EtherCAT Coupler Unit, an NX Unit on
the EtherCAT Coupler Unit, or an NX Unit connected to the NX bus of the CPU Unit and stores the data
in ReadDat. The Unit from which the data is read is specified with UnitProxy.
TimeOut specifies the timeout time. If a response does not return within the timeout time, it is assumed
that communications failed. In that case, the data is not read.
NY-series Instructions Reference Manual (W560)
FB/FUN Graphic expression
FB
NX_ReadObj_instance
Execute
UnitProxy
Obj
TimeOut
ReadDat
I/O Description
Input Unit from which to read data
Object parameter
Timeout time
If 0 is set, the timeout time is 2.0 s.
In-out Data read from NX object
Refer to Function for details on the structure _sNXUNIT_ID.
Refer to Function for details on the structure _sNXOBJ_ACCESS.
OK
An array can also be specified.
NX_ReadObj
Done
Busy
Error
ErrorID
ErrorIDEx
Valid range
---
0 to 60,000
Depends on
data type.
Integers
2 Instruction Descriptions
ST expression
NX_ReadObj_instance(Execute,
UnitProxy, Obj, TimeOut,
ReadDat, Done, Busy, Error,
ErrorID, ErrorIDEx);
Unit Default
--- *
---
ms 2000
(2.0 s)
--- ---
Times, durations,
dates, and text strings
2
2-961