9
Integrated Blocks and Their Functions
9.1
Integrated Organization Blocks (OBs)
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9 - 1
9.1.1
Cyclic Program Execution (OB1)
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9 - 2
9.1.2
Interrupt-Driven Program Execution (OB3)
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9 - 3
9.1.3
Time-Controlled Program Execution (OB13; for S5-95U only)
. . . . .
9 - 3
9.1.4
Restart Processing (OB21, OB22) . . . . . . . . . . . . . . . . . . . . . . . .
9 - 5
9.1.5
Retriggering the Scan Time (OB31; for S5-95U only)
. . . . . . . . . .
9 - 6
9.1.6
Procedure after Battery Failure (OB34; for S5-95U only)
. . . . . . . .
9 - 7
9.1.7
OB251 PID Algorithm (for S5-95U only)
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9 - 8
9.2
Integrated Function Blocks (FBs) . . . . . . . . . . . . . . . . . . . . . . . . .
9 - 20
9.2.1
Code Converter : B4 - FB240 -
. . . . . . . . . . . . . . . . . . . . . . . . . .
9 - 20
9.2.2
Code Converter : 16 - FB 241-
. . . . . . . . . . . . . . . . . . . . . . . . . .
9 - 21
9.2.3
Multiplier : 16 - FB242 -
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 - 22
9.2.4
Divider : 16 - FB243 -
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9 - 23
9.2.5
Reading of Analog Values (FB250)
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9 - 24
9.2.6
Output of Analog Values (FB251)
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9 - 24
9.3
Integrated Sequence Block 2 (SB2)
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9 - 24
9.4
Integrated Data Block 1 (DB1)
. . . . . . . . . . . . . . . . . . . . . . . . . .
9 - 25
9.4.1
Parameter Blocks
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9 - 26
9.4.2
Rules to Observe When Generating DB1
. . . . . . . . . . . . . . . . . . .
9 - 27
9.4.3
Transferring DB1 Parameters to the Programmable Controller
. . . .
9 - 30
9.4.4
Procedure for Parameterizing the PLC . . . . . . . . . . . . . . . . . . . . .
9 - 30
9.4.5
How to Recognize and Correct Parameter Errors
. . . . . . . . . . . . .
9 - 31
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EWA 4NEB 812 6115-02b
Содержание SIMATIC S5-90U
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