Yokogawa PC-Based MX100 - Manual (Page 1167)

24-76
IM MX190-01E
mathInstChDA100Reader
Syntax
int mathInstChDA100Reader(DAQDA100READER daqda100reader, int
chNo);
Declaration
Visual Basic
Public Declare Function mathInstChDA100Reader Lib
"DAQDA100"(ByVal daqda100reader As Long, ByVal chNo As Long)
As Long
Visual Basic.NET
Public Declare Ansi Function mathInstChDA100Reader Lib
"DAQDA100"(ByVal daqda100reader As Integer, ByVal chNo As
Integer) As Integer
C#
[DllImport("DAQDA100.dll" CharSet=CharSet.Auto,
EntryPoint="mathInstChDA100Reader"]
public static extern int mathInstChDA100Reader(int
daqda100reader, int chNo);
Parameters
daqda100Reader Specify the device descriptor.
chNo Specify the channel number.
Description
Gets the measured data of the specified computation channel.
• If the constant for “Specify all channel numbers” is specified for the channel
numbers, all computation channels are processed.
• Gets the measured data and alarm data.
• Specify measurement channels and computation channels separately.
• This function executes the EF command of the DARWIN communication function.
Return value
Returns an error number.
Error:
Not descriptor No device descriptor.
Reference
CDAQDA100Reader::mathInstCh
24.3 Details of Functions for Instantaneous Value Loading - DARWIN- Status Transition Functions