Please refer to the Settings Guide for details.
19.12.2.7 Show History - Sub Display/Basic
19.12.2.8 Show History - Sub Display/Extended
28.3.1 Common Settings (PDF Viewer) Settings Guide
For details on how to draw parts and define the address, shape, color, and labels, please see "Editing Parts".
7.7.1 Editing Parts
Create a PDF Viewer to call a Sub Display. For information on the setup procedure, see the following.
28.2.1 Procedure - Displaying and Operating a PDF from the Display Unit
Set up the alarm part to display alarms. Open the screen to display the Alarm (for example, Base 1), and in the [Parts (P)] menu, select [Alarm (A)], or click 
, and place the Part on the screen.
Double-click the placed Alarm. The Alarm dialog box appears.
For the alarm, select the Block and the Display Mode.
Set the [Display Start Row], [Display Alarms] and [Display Row Spacing].
Click the [Sub Display] tab, and select the [Enable the Sub Display] box.
Click [Extended].
In the [Sub Display Type] list, select [PDF Viewer].
Set the [Offset Address].
As needed, use the [Item] tab, [Color] tab, and [Display] tab options to change alarm message's number of display characters, text color, background color, font, and size. Click [OK]. Set up is now complete.