1 FUNCTIONS
1.7 COV Interaction Function
151
1
Creation of a program
Create a program that reads COV notification data from the access block for COV interaction assigned to the buffer memory.
■ Values to be stored to an access block for COV interaction
For details on the format of access blocks for COV interaction, refer to the following section.
Page 294 Format of access blocks for COV interaction
■ Devices to be used
■ Program example
Offset
(Decimal address)
Name Value to be set
+0
(600)
CONTROL (No settings)
+1
(601)
StatusFlags (No settings)
+2
(602)
PresentValue 4 (The data type of the PresentValue of an AnalogInput object is REAL.)
+3
(603)
(No settings)
+4 to +5
(604 to 605)
(No settings)
Device name Device Description
Data register D400 A device for storing the PresentValue property value of a COV notification
D402 A device for storing the StatusFlags property value of a COV notification
Buffer memory U0\G600 Refer to the following section.
Page 151 Values to be stored to an access block for COV interaction
U0\G601
U0\G604
(0) When the CONTROL is '1' (COV notification reception complete), the PresentValue property value of a COV notification is stored to D400.
The StatusFlags property value of a COV notification is stored to D402.
'0' (idling) is stored to the CONTROL to reset.
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