Library Functionality - Revision history

Efeldman at 20:27, 11 November 2011

2011-11-11T20:27:35Z

Efeldman at 14:37, 31 October 2011

2011-10-31T14:37:38Z

Efeldman at 18:33, 24 October 2011

2011-10-24T18:33:17Z

Efeldman: Created page with "'''Library Functionality''' Systems Integrators and other power users sometimes need to implement communication between the Techno CNC Controller and other custom software. This..."

2011-10-24T18:32:55Z

Created page with "'''Library Functionality''' Systems Integrators and other power users sometimes need to implement communication between the Techno CNC Controller and other custom software. This..."

New page

'''Library Functionality'''

Systems Integrators and other power users sometimes need to implement communication between the Techno CNC Controller and other custom software. This is sometimes done via a DLL (Dynamic Link Library).

Given the rare and complex nature of these tasks, Techno has decided to implement a different methodology to enable this behavior.

Instead of writing code around the Techno DLL which can be difficult and time consuming, users are now advised to write a [[SAC]] script in the techno cnc interface with the ability to communicate with external software via two files dynamically stored on the hard disk. This allows for extreme flexibility, robustness and ease of programming.

Things to keep in mind:
#When reading and writing files, make sure you're always reading the most recent line, or when writing, empty the file first.
#Be sure to create a parser in both programs to handle all possible commands

<pre>
'Example of executing a program...
Set WshShell = CreateObject("WScript.Shell")
WshShell.Run ("%windir%\notepad")

'EXAMPLE OF READING AND WRITING TO SEPARATE FILES FOR COMMUNICATION PURPOSES
'file reading/writing stuff:
'http://msdn.microsoft.com/en-us/library/czxefwt8%28v=vs.85%29.aspx

DIM SERIAL_NUMBER
DIM TEXT_FROM_FILE
SERIAL_NUMBER=1

SENDTEXT ("COMMUNICATION")
READTEXT ()
MSGBOX("File contents = "& TEXT_FROM_FILE )

MSGBOX("Operations Complete!")

PUBLIC FUNCTION SENDTEXT (TEXT_TO_SEND)
DIM FSO, FILEOBJECT
Set FSO = CreateObject("Scripting.FileSystemObject")
If FSO.FileExists("C:\SAC_TO_INTERFACE.TXT") Then
'SOMETHING HERE IF YOU DIDN'T KNOW THE FILE EXISTED
Else
'SOMETHING HERE IF YOU EXPECTED IT TO EXIST AND IT DOESN'T
End If
'CREATE OR REPLACE THE EXISTING FILE
Set FileObject = FSO.CreateTextFile ("C:\SAC_TO_INTERFACE.TXT")
FileObject.WriteLine TEXT_TO_SEND & "|| " & SERIAL_NUMBER & " ||" & Now()
SERIAL_NUMBER = SERIAL_NUMBER +1
FileObject.Close()
END FUNCTION

PUBLIC FUNCTION READTEXT ()
DIM FSO, FILEOBJECT

Set FSO = CreateObject("Scripting.FileSystemObject")
If FSO.FileExists("C:\INTERFACE_TO_SAC.TXT") Then
'GOOD, IT SHOULD.
Else
MSGBOX("FILE IS NOT PRESENT! IF YOU ARE TESTING, MAKE A FILE WITH SOME STUFF IN IT.")
'ERROR HANDLING
EXIT FUNCTION
End If

'OPEN THE EXISTING FILE
Set FILEOBJECT = FSO.OpenTextFile("C:\INTERFACE_TO_SAC.TXT", 1)
TEXT_FROM_FILE = FILEOBJECT.ReadLine
FILEOBJECT.Close
'Delete the line from the other software after you're sure it has been read here
'Otherwise, be sure to read the last line of the file when you read.
'Send TEXT_FROM_FILE to your parser
END FUNCTION
</PRE>

← Older revision		Revision as of 18:33, 24 October 2011
Line 1:		Line 1:
−	~~'''Library Functionality'''~~
−
	Systems Integrators and other power users sometimes need to implement communication between the Techno CNC Controller and other custom software. This is sometimes done via a DLL (Dynamic Link Library).		Systems Integrators and other power users sometimes need to implement communication between the Techno CNC Controller and other custom software. This is sometimes done via a DLL (Dynamic Link Library).

@@ Line 14: / Line 14: @@
 #When reading and writing files, make sure you're always reading the most recent line, or when writing, empty the file first.
 #Be sure to create a parser in both programs to handle all possible commands
 <pre>

@@ Line 1: / Line 1: @@
 Systems Integrators and other power users sometimes need to implement communication between the Techno CNC Controller and other custom software. This is sometimes done via a DLL (Dynamic Link Library).
-Given the rare and complex nature of these tasks, Techno has decided to implement a different methodology to enable this behavior.
+Given the rare and complex nature of these tasks, Techno has decided to implement a different methodology to enable this behavior. This new methodology removes the issues frequently found when using various compilers and OSes. This method is even able to work across a network and with different operating systems (linux, mac, etc)
 Instead of writing code around the Techno DLL which can be difficult and time consuming, users are now advised to write a [[SAC]] script in the techno cnc interface with the ability to communicate with external software via two files dynamically stored on the hard disk. This allows for extreme flexibility, robustness and ease of programming.
 Things to keep in mind: