Yokogawa PC-Based MX100 - Manual (Page 493)

9-5
IM MX190-01E
DARWIN - Visual Basic -
9
Retrieval of the Measured Data
Program Example 1
This program retrieves measured data.
Public Function Main()
Dim datetime As DarwinDateTime
Dim chinfo As DarwinChInfo
Dim datainfo As DarwinDataInfo
'connect
host = "192.168.1.11"
comm = openDARWIN(host, rc)
'get
rc = talkDataByBinaryDARWIN(comm, 0, 1, 0, 2, datetime)
Do
rc = getChDataByBinaryDARWIN(comm, chinfo, datainfo, flag)
Loop While (flag And DAQDARWIN_FLAG_ENDDATA) = 0
'disconnect
rc = closeDARWIN(comm)
End Function
Description
Overview
When retrieving data, the talker is executed first, and then data retrieval is executed
in units of channels or lines. The end is determined by the flag.
Flow of the Process
The flow chart shown below omits the declaration section.
Last channel?
Connect
Declare the retrieval
of the measured data
Get the measured data
channel by channel
Disconnect
END
START
closeDARWIN
getChDataByBinaryDARWIN
talkDataByBinaryDARWIN
openDARWIN
9.2 Programming - DARWIN/Visual Basic -