Yokogawa PC-Based MX100 - Manual (Page 1185)

24-94
IM MX190-01E
dataStringValueDA100Reader
Syntax
int dataStringValueDA100Reader(DAQDA100READER daqda100reader,
int chType, int chNo, char * strValue, int lenValue);
Declaration
Visual Basic
Public Declare Function dataStringValueDA100Reader Lib
"DAQDA100"(ByVal daqda100reader As Long, ByVal chType As Long,
ByVal chNo As Long, ByVal strValue As String, ByVal lenValue
As Long) As Long
Visual Basic.NET
Public Declare Ansi Function dataStringValueDA100Reader Lib
"DAQDA100"(ByVal daqda100reader As Integer, ByVal chType As
Integer, ByVal chNo As Integer, ByVal strValue As String,
ByVal lenValue As Integer) As Integer
C#
[DllImport("DAQDA100.dll" CharSet=CharSet.Auto,
EntryPoint="dataStringValueDA100Reader"]
public static extern int dataStringValueDA100Reader(int
daqda100reader, int chType, int chNo, byte[] strValue, int
lenValue);
Parameters
daqda100Reader Specify the device descriptor.
chType Specify the channel type.
chNo Specify the channel number.
strValue Specify the field where the string is to be stored.
lenValue Specify the byte size of the field where the string is to be
stored.
Description
Gets the measured value of the specified channel (channel type and number) from
the stored measured data.
• Converts into a string and stores it in the specified field.
• The string stored in the field includes the terminator (NULL).
• The return value is the length of the actual string. The return value does not
include the terminator.
• Returns 0 if it does not exist.
• The strings that can be stored are, in general, ASCII strings.
Return value
Returns the length of the string.
Reference
dataStringValueDA100
24.4 Details of Instantaneous Value Loading Functions - DARWIN - Status Transition Functions