Functions For Which Engineering Unit Displays And Settings Are Enabled; Setting Csv Tags For Function Blocks; Setting Projects In Engineering Unit Mode - Omron WS02-LCTC1-EV5 - V5.2 REV 12-2008 Manual

Displaying and Setting in Engineering Units
3-9-2 Functions for Which Engineering Unit Displays and Settings Are
Enabled

3-9-3 Setting CSV Tags for Function Blocks

3-9-4 Setting Projects in Engineering Unit Mode

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tings, conversion errors may occur during engineering unit conversion. If a con-
version error occurs with the CX-Process Tool, the following warning will be dis-
played when the value is input. (When a conversion error occurs, the scaled val-
ue closest to the input value is automatically calculated.)
(Conversion Error Warning Display)
With the CX-Process Tool, an engineering unit that is input is converted to a per-
centage (%) value. The converted value is converted back to the engineering
unit (reverse conversion), and the two values are compared. If there is a differ-
ence, a warning is displayed. The main cause of errors is rounding errors that
occur in division during scaling.
Conversion Error Example
When the following settings are made for the CSV tag:
Scaling upper limit: 8,500, Scaling lower limit: –2,000, DP position: 1, Unit: °C
An input value of 32.0C becomes 2,209.52 when converted to percentage (%)
data. The rounded-off value of 2,210 then becomes 32.05°C when converted
back to the engineering unit. The rounded-off value with a DP position of 1 be-
comes 32.1C, and a warning is displayed because this value differs from the in-
put value.
The following table shows the functions for which engineering unit displays and
settings are enabled.

Functions for Which Engineering Unit Displays and Settings Are Enabled

Function name
Editing function block ITEMs
Printing and print previews for function block ITEMs
Monitor ITEM lists
Block diagram operation checks
Wireless debugging
Segment Program 2 and Segment Program 3 ITEM
settings
CSV tags must be set for a function block in order to execute the engineering unit
display and settings. For details on setting CSV tags, refer to 3-4-1 Creating
SCADA Software and RS View Tag Files.
Select View - Engineering Unit Mode - Display from the menu, or click the
Icon in the toolbar. To clear the Engineering Unit Mode, select the command
again or click the icon again.
The default setting is for the Engineering Unit Mode to be enabled. Setting the
Engineering Unit Mode enables engineering unit displays and settings for all
function blocks registered for the project.
Section 3-9
Displays Settings
Yes Yes
Yes ---
Yes Yes
Yes Yes
Yes Yes
Yes Yes