Steps for setting up WinWedge:
- Select "DDE Server" from WinWedge
"Mode" menu. When the dialog box appears asking for a DDE Command Target
Application, enter: "Origin" as the DDE Application Name and then enter
"ORG" as the DDE topic.
- Select "Input Record Structure" in the
"Define" menu and define the structure of the input record(s) to WinWedge. When
you get to the final Window entitled "Input Record Definition Editor", enter the
string Get_Wedge_Data as the Field Postamble DDE Command after the last data field that
you have defined. This is a DDE command that will be sent to Origin 5.0 after each data
record is received by the Wedge.
- Save this configuration of WinWedge to a file MyConfig.SW3
Example#1
–
Launching and Starting a Conversation with Software
Wedge
Launch Origin and open the Script Window by selecting
Window:Script Window from the Origin menu bar. Enter the following lines of script to
launch WinWedge and Start a conversation. This example assumes that WinWedge.Exe and
the configuration file "MyConfig.SW3" exists and both are located in a directory
named "WinWedge" and that the config file "MyConfig.SW3", saved from
above, will configure WinWedge for serial port COM1.
//Launch WinWedge with configuration
file
run -e c:\Winwedge\winwedge.exe
c:\WinWedge\MyConfig.SW3;
dde -c WinWedge|Com1 id;
//Initiate conversation
Note: There are two ways to execute a script from the Script Window.
One way is to type text into the Script Window and press ENTER.
The text from the beginning of the line to the current cursor point
is sent to the interpreter as a single script. After pressing ENTER,
Origin appends a semicolon to the end of the line to indicate the
script was executed. Another option for executing script from the
Script Window is to Highlight multiple lines of text (including
a semicolon at the end of each line) to be executed and press ENTER.
Example #2 – Collecting Data to a Column in a Spreadsheet
Origin 5.0 does not have a "Get_Wedge_Data" DDE command
so the first step is to create one. When you create a macro in
Origin
5.0, the name of the macro automatically becomes a valid Origin
5.0 DDE command (or script command) for as long as the project
is
open. This example assumes that WinWedge.EXE and the configuration
file "MyConfig.SW3" both exist and are located
in a directory named "WinWedge" and that the config
file "MyConfig.SW3",
saved from above, will configure WinWedge for serial port COM1.
Each time data is sent to the wedge the data is entered in a new
row.
//Create Get_Wedge_Data
Macro
def Get_Wedge_Data {
//Launch WinWedge with
configuration file:
run -e c:\Winwedge\winwedge.exe
c:\WinWedge\MyConfig.SW3;
dde -c WinWedge|Com1 id;
//Initiate conversation
dde -r id field(1); //Request
information
plot -a %H 1 "%Z ";
//Enter data into column 1 of the active worksheet
dde -d id; //terminate
dde link
};
Note: To define the above macro, highlight the entire block of
text and hit ENTER.
If you have defined 2 fields in WinWedge and would like to collect
the data into two columns, then modify the macro above to include
a line that collects data from field 2:
//Create Get_Wedge_Data
Macro
def Get_Wedge_Data
{
//Launch WinWedge
with configuration file:
run -e c:\Winwedge\winwedge.exe
c:\WinWedge\MyConfig.SW3;
dde -c WinWedge|Com1 id;
//Initiate conversation
dde -r id field(1);
//Request information from field 1
plot -a %H 1 "%Z
"; //Enter data into column 1 of the active worksheet
dde -r id field(2);
//Request information from field 2
plot -a %H 2 "%Z
"; //Enter data into column 2 of the active worksheet
dde -d id; //terminate
dde link
};
|
