Expected restart interval

The IQAN-MC4xFS has a huge number of diagnostic checks that are running continuously, at 100 ms interval or less. 

These runtime tests is what gives the calculated value for Diagnostic Coverage. 

At each startup, the MC4xFS also performs an additional set of diagnostic tests to ensure that the runtime diagnostic functions still work. Diagnostics on diagnostics. 

There is no function in the controller to enforce this safety manual requirement. But if you use the MC4xFS for safety functions you are supposed to follow it. 

Hi Gustav,

Is there some functionality where you could call a controller restart programmatically?

There is a system we are intending to use with SIL-2 Rating in the future and the Restart interval may exceed 48 hours but there are times when it will be safe to restart the controller. Is there some way to call this in the code?

Thanks,

If you have the system connected to a PC with IQANrun, it could run a script that has the Restart action.

To avoid a restart at the wrong moment, the applications can make use of the "allow stop" property. 

Hi Gustav,

There is no method to force a restart from the code running on the MC43FS? 

The scenario we are looking at the system has essentially 100% duty cycle, but there are opportunities for restarting the controller, however we do not want it to involve operator interaction to do so.

Thanks,