I am noticing that whenever I restart the gateway, every active alarm becomes un-acknowledged even if it had been acknowledged prior to the restart. Is there a tag or alarm configuration setting that I am missing here that would stop this from happening? Haven't been able to find any documentation on this or past forum posts.
Any help would be appreciated.
On the Gateway you can visit Config > Alarming > General to see some of the global alarm config settings. One of these is "Continuous Event Detection Window" which I believe is involved with retaining alarm events through a Gateway restart.
For Ignition 8.1 this is documented here: