Having an issue, this is my first attempt at setting something like this up, and hoping its just something minor im missing. scenario.
have a Panelview800, using the Current User system tag in the Global Connections to write to a Current_User tag that i made in the external tags tab in CCW. That tag writes to a String address in the Micrologix 1400, which then has an ASCII String Compare instruction setup and that in return sets a Boolean bit to tell the PLC whom is logged into the HMI. The issue im having is if someone is logged into the HMI then there is a power loss, that ASCII String Compare instruction continues to evaluate as true when the power comes back and there for a Comm Error pops up on the Panelview800. If i unplug the ethernet cable from the PLC, or the ethernet switch, or the Panelview and then plug it back in, all is well.
have a Panelview800, using the Current User system tag in the Global Connections to write to a Current_User tag that i made in the external tags tab in CCW. That tag writes to a String address in the Micrologix 1400, which then has an ASCII String Compare instruction setup and that in return sets a Boolean bit to tell the PLC whom is logged into the HMI. The issue im having is if someone is logged into the HMI then there is a power loss, that ASCII String Compare instruction continues to evaluate as true when the power comes back and there for a Comm Error pops up on the Panelview800. If i unplug the ethernet cable from the PLC, or the ethernet switch, or the Panelview and then plug it back in, all is well.