NX-1200 and Netlinx

Kareem

Hi Dears
I have NX-1200 in control system and i need to monitoring or supervise this controller.
I.e when any push any inputs from I/o port in need to log file contain the strings performed due to this push.
thanks.

HARMAN_icraigie

From NetLinx Keyword help:

File Operations Example: Writing to a File
The following example code demonstrates writing to a file (typical usage):

DEFINE_FUNCTION appendToFile (CHAR cFileName[],CHAR cLogString[])

{

STACK_VAR SLONG slFileHandle // stores the tag that represents the file (or and error code)

LOCAL_VAR SLONG slResult // stores the number of bytes written (or an error code)

slFileHandle = FILE_OPEN(cFileName,FILE_RW_APPEND) // OPEN OLD FILE (OR CREATE NEW ONE)

IF(slFileHandle>0) // A POSITIVE NUMBER IS RETURNED IF SUCCESSFUL

     {

     slResult = FILE_WRITE_LINE(slFileHandle,cLogString,LENGTH_STRING(cLogString)) // WRITE THE NEW
                                                                                     INFO

      FILE_CLOSE(slFileHandle)   // CLOSE THE LOG FILE

     }           

  ELSE

     {

     SEND_STRING 0,"'FILE OPEN ERROR:',ITOA(slFileHandle)" // IF THE LOG FILE COULD NOT BE CREATED

     }

}

Which would be called like this:

appendToFile(‘log.txt’,’Something happened…’)

when an entry to this file needed to be written.

Use the FILE_RW_APPEND constant for the IOFlag to append new data to the file.