WindO/I-NV4 User’s Manual
30-7
1 Overview
30
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Operation with priority on display processing
When there are external inputs
■
Display processing
Parts placed on the screen are processed in order from top to bottom. This process is done in a single scan.
When processing reaches the end, it returns to the beginning and starts the next scan.
The time for one scan depends on the number and type of parts used, as well as how they are configured.
■
Input refresh
Inputs are refreshed every 10 milliseconds independent of the screen scan.
However, inputs from the expansion module are not reflected in the Input (#I, #D and LEX) until the screens scan
ends.
■
Input delay
When there is an external input to the expansion module, the delay time until that input is reflected to the Input (#I,
#D and LEX) is as follows.
Minimum: 5 milliseconds
Maximum: 15 millis the scan time (HMI Special Data Register LSD4)
The longer display processing takes, the longer the delay.
Control processing
Expansion module input
Input
refresh
Input
External
input
External
input
10 msec
Input
refresh
10 msec
Input
refresh
10 msec
Scan time
Input delay
Input
delay
Start of scan
Display
processing
1 scan
(#I, #D, LEX)
End of scan
When the input refresh is executed immediately after starting the
scan, the input of the expansion module is reflected at the end of
the scan of the screen. This will result in a wait time of about 1 scan
and the input delay is maximized.
Input
External
input
Input
refresh
Display
processing
1 scan
(#I, #D, LEX)
Input delay
(maximum)
Summary of Contents for WindO/I-NV4
Page 1: ...B 1701 16 User s Manual...
Page 108: ...5 WindO I NV4 Common Operations and Settings 2 76 WindO I NV4 User s Manual...
Page 256: ...7 BACnet Communication 3 148 WindO I NV4 User s Manual...
Page 372: ...6 Screen Restrictions 5 32 WindO I NV4 User s Manual...
Page 390: ...5 Part Library Function 6 18 WindO I NV4 User s Manual...
Page 420: ...3 Text 7 30 WindO I NV4 User s Manual...
Page 628: ...2 Multi State Lamp 9 34 WindO I NV4 User s Manual...
Page 924: ...4 Meter 11 76 WindO I NV4 User s Manual...
Page 990: ...7 Timer 12 66 WindO I NV4 User s Manual...
Page 1030: ...4 Using Data and Detected Alarms 13 40 WindO I NV4 User s Manual...
Page 1098: ...4 Using the Data 15 22 WindO I NV4 User s Manual...
Page 1248: ...5 Restrictions 22 18 WindO I NV4 User s Manual...
Page 1370: ...2 Monitoring on the MICRO I 25 28 WindO I NV4 User s Manual...
Page 1388: ...4 Restrictions 26 18 WindO I NV4 User s Manual...
Page 1546: ...5 Module Configuration Dialog Box 30 36 WindO I NV4 User s Manual...
Page 1614: ...3 Settings 34 14 WindO I NV4 User s Manual...
Page 1726: ...5 Text Alignment A 10 WindO I NV4 User s Manual...
