User Guide - Eurotherm Ltda

nanodac RECORDER/CONTROLLER: USER GUIDE4.1.3 Display Configuration (Cont.)Horizontal Trend, Vertical Bar, Horizontal bar, Numeric, Alarm Panel, Loop control, Dual Loop, Cascade, Programmer,Steriliser, Promote List, Modbus Master, EtherNet/IP. As for Vertical Trend,above. By default some display modes are disabled (grey cross). In order to enablesuch display modes the relevant cross is highlighted using the up/down arrow buttons,and the scroll button then used to change the grey cross to a white tick.The tick associated with the selected home page is always grey.Note: Some display modes are available only if the relevant option is fitted.Future Trend This and the associated colour selections appear only if the Programmer option is fitted.See Section 3.4.9 for more details.Trend Background Allows the user to select black (default), white dark grey or light gray as the ‘chart’ colour.History Background As above for ‘Trend background’, but for history displays.H.Trend Scaling As described in Section 3.4.2, by default, the scale for horizontal trends appears at theleft edge of the chart for a few seconds before the chart expands leftwards to occupythe scale area. Setting ‘H.Trend Scaling’ to ‘Permanent’, ensures that the scale remainspermanently on display.Faceplate cycling Allows the default faceplate cycling state to be defined as ‘On’ or ‘Off’ (Section 3.3.5)Setpoint colour The colour for the setpoint in Control Loop display pages (Section 3.4.7).Number Format Rounded:Truncated:USB Auto Scan If set to ‘Yes’, bar code data messages are automatically generated and appear on thedisplay and in the Message list without operator intervention. If set to ‘No’, the Messageappears on the screen for editing and/or confirmation, before being displayed etc.Section 8.2 provides further details.There is a new paramter been added to the Instrument. Display list - Number format.The options are to "Round" or "Truncate" values. On the previous firmware releases of the nanodac, numberswere truncated (in the same way as the 6000).From firmware versions V3.01 and above there is an option to allow numbers to be rounded. The reason forthis is driven primarily from a control point-of-view. With truncation, it is quite likely that the PV will look asthough it never settles onto setpoint. The rounding/truncation affects the UI display and MODBUS scaledintegers, the underlying numbers are not affected, nor the values saved in the history files. Over MODBUScomms, all floating point parameters that are read via scaled integer comms will take note of the configuredsetting for rounding or truncating and reflect this. On the UI, ALL floating point values rendered will adhereto the configured setting of rounding or truncating.HA030554Issue 7 Nov 12Page 61