This module controls a two-position valve where the temperature of the source water is either hot or cold (depending on the season). The module accepts as inputs a cooling mode and a heating mode, a process variable, two setpoints, and the SummerWinter setting. The module outputs the calculated Percent Command, which is typically passed to the MSC module which in turn translates the percent value into pulses of the binary output. The module also outputs the calculated cooling and heating percentages and statuses. This module also incorporates tracking the overridden value of the actual output object (AO, PAO). The module resets the PIDs to default tuning parameters if the Reset PID Tuning input is not Normal.
This module controls a single two-position valve that dynamically switches from a heating (winter) to a cooling (summer) mode. This module provides this control within a zone control application.
The module accepts as inputs a cooling mode, a heating mode, a process variable, heating and a cooling setpoint, a SummerWinter setting, a limited max value, a flush position, and configuration information. Based upon the input commands, other inputs and the parameter settings, the module outputs the calculated Percent Command, which is typically passed to the MSC module, which in turn translates the percent value into pulses of the binary output. The module also outputs the calculated cooling and heating percentages and statuses.
This module provides EWMA diagnostic values calculated by the PID. Controllers have the ability to collect data about their inputs, outputs, and internally calculated variables. Inside the controller, the EWMA minimizes memory requirements, reduces communication traffic, and provides an easy way to analyze collected data. See EWMA Diagnostics in the Commissioning a System section for more information.
You can view and modify the modules in this group’s logic.