User Guide - Eurotherm Ltda

nanodac RECORDER/CONTROLLER: USER GUIDE7.2 COUNTER EXAMPLEThis example shows how to set up a counter to be incremented each time Channel 1 Alarm 1 becomes active,and reset each time channel 2, alarm 1 is acknowledged. For this example, Virtual Channel 3 will beconfigured as the counter, with a preset value of 0.1. At Channel.1.Main, set:Type = testTest Signal = Sine 4 min.Scale Low = 0Scale High = 1002. At Channel.1.Alarm1, set:Type = Abs HiThreshold = 50Latch = None3. At Channel.2.Main, set:Type = TestTest Signal = Sine 40 min.Scale Low = 0Scale High = 1004. At Channel.2.Alarm 1, set:Type = Abs HiThreshold = 90Latch = Manual5. At Virtual Channel.3.Main, set:Type = CounterOperation = OnInput = 1All the other parameters can be left at their defaults.6. Still at Virtual Channel 3 (Main), use the up/down arrow buttons to highlight ‘Trigger’. Press and holdthe scroll key. The top level User Wiring page appears, this time with a ‘From Source’ tab as well as the‘To Destination’ tab of example 1. This is because this parameter is read/write, whereas Alarm Active isread only (i.e. its value may be read but not changed).7. Use the up (or down) arrow button to select the ‘From Source’ tab.Virtual Channel.3.MainUser WiringStatusResolutionUnitsInputPresetPreset ValueTriggerGood01No0NoVirtual Channel.3.MainTriggerTo Destination From SourceAdd new wireUser WiringVirtual Channel.3.Main.TriggerTo Destination From SourceAdd new wireFigure 7.2a Wiring a counter: part 1HA030554Issue 7 Nov 12Page 289