I have a question regarding the historical data log trigger. I have a trigger based on temperature. When the temperature is greater than 200 degrees C on the ramp to 760 degrees C, data is collected. On cool down, when TC26 is less than 100 degrees C, data collection stops. This all works well unless there is a problem with the HMI computer. If we reboot the HMI computer, the data is no longer collected. Even if I used a digital trigger to go true when greater than 200 and I have the digital trigger set to be 0 on Snap-Pac start up, this would not help if only the HMI were restarted and not the Snap-Pac.
If the HMI is rebooted, I would like the data to be appended to the last file if TC26 >= 200. I could live with a little less data, it does not have to be 100 on cool down. It could be collect data anytime that TC26 >=200.