Yaskawa YASNAC PC NC PLC Programming Manual - Manual (Page 209)

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YASNAC PCNC PLC Programming Manual Chapter 11: YASNAC Paradym-31 DLL
11.9 Functions for Obtaining Contact and Byte Data
BOOL Getvalue(Word*Address,Byte*Bitnum,Byte*Datatype,Dword*pData,HWND)
*Address: A maximum of 100 contacts in 4-digits is possible
Array is ended by 0.
*Bitnum: It is possible to set up within 0 ~ 7 (effective when Datatype is 0.).
*Datatype: 0=bit,1=byte,2=word,3=dword
*pData: Obtain contact data pointer
1 data is fixed as 4 bytes.
Answer data during bit requesting returns by 0 or 1.
HWND: Handling number of WIZDOM’s main window
Main window handling is obtained from WIZDOM application.
The status of start/stop is notified.
When an error occurs, the following message is displayed in the message box.
Note: Although data can be obtained that extends over the range of the I/O area or the NC
standard signal diagnosis number area using the contact and byte data obtaining
function (Getvalue), it is indefinite.
Message Contents Meaning
Communication Error An error occurred during communication.
Communication Time Out There is no response.
Port Open Error Port is not opened.
Request Data Error Requested contact is wrong.
Already Used It has already been used.