EXCEL CARE CONTROL ICONS ALPHABETIC REFERENCE191 74-5577–33 (US)EN2B-0184 GE51 R0518 (Europe)Time Program Preparation When preparing the Time Program, set the switching points for system start/stop tothe latest possible time because EOV automatically advances these times, ifnecessary.Also, you must set the Optimization variable to Yes in the Time Program for systemstart/stop.Time Program Switch Point With EOV, the Time Program does not use step changes in the room temperaturesetpoint for optimized system start/stop as is the case with EOH. Instead, the TimeProgram includes XD1 status changes in the calculation of optimized start/stop timepoints. Therefore, XD1 must be a Time Program user address. This requirement isthe only way advance monitoring of the switch point is possible.Time Program Optimization EOV releases the optimization attribute in the Time Program (in the Datapoint forExcel Web / Excel Web II) that has the user address assigned to XD1. This releaseenables optional system switching. Otherwise, EOV uses the switching points in theTime Program.No Setpoint orIntegrated Controller EOV does not provide the setpoint and does not have an integrated controller. Thecontroller application program must provide regulation during the system shutdownphase.OR (Excel Web / Excel Web II)Function OR output becomes TRUE(1) if at least one input is TRUE(1). NOR output is theinverted OR output.I/O Dialog BoxInputs Two through thirty two digital inputs.Output Two digital outputs.Internal Parameters None.PID Controller / PIDFunction Proportional-Integral-Derivative controller that regulates an analog output based ontwo analog values (one is a controlled variable; the other, a reference variable) andoperating parameters. The controlled variable is the variable that should be heldconstant, for example, a room temperature. The reference variable is the prescribedchangeable value of the controlled variable, for example, room temperature setpoint.I/O Dialog BoxThe PID controller can also operate as a P, PI, or PD controller if you zero theIntegral and/or Derivative values in the internal parameters dialog box.
