How to detect WinCC to PLC communication breakages

He Techy,

You can use Lifebeatmonitoring! but if you want to use scripts than you can use an action like this and create your own alarms:

#include "apdefap.h"

int gscAction( void )
{
static double limitValue[1] = {100,};
static unsigned long statusValue[15] = {14,13,12,11,10,9,8,7,6,5,4,3,2,1,0,};
unsigned long status;
LINKINFO lplink;
CMN_ERROR err;
BOOL oke;
double count;

//0 : Oke
//1: Server not avalible
//2: No network module
//3: No connection
//4: No check-back message from the channel
//5: Hand shake-error
//6: addressing error
//7: tag not found
//8: acces to tag not premitted
//9: format high limit exceeded/
//10: format low limit exceeded
//11: conversion error
//12: high limit exceeded
//13: low limit exceeded
//14:start value

// random tag of the connection
status = statusValue[CheckLimitStatus (2,"Fill in your random external tag", 14, 1,&limitValue[0])];

// When NOK then error with a delay. We use the internal tags CONNECTION_xx to make an alarm in alarmlogging and to delay the error.
//CONNECTION_STOP makes the alarm.
//CONNECTION_RETRY is for creating a delay

if ((status > 0) && (status < 8))
{
count=GetTagDouble("CONNECTION_RETRY");
count=count+1;
SetTagDouble("CONNECTION_RETRY", count);
if(count== 6)
{
printf("Status NOK\r\n");
SetTagBit("CONNECTION_STOP", TRUE);
}
}
else
{
SetTagDouble("CONNECTION_RETRY", 0);
SetTagBit("CONNECTION_STOP", FALSE);
}

return 0;
}

Good luck,

Jaapio

Jaapie

You can use Lifebeatmonitoring! but if you want to use scripts than you can use an action like this and create your own alarms: