Siemens Simatic S7-300 - Page 12

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S7-300, Installation and Hardware
EW A 4NEB 710 6078-02a
12 Cycle T ime and Response T ime of the S7-300
12.1 Cycle T ime 12-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.2 Response Time 12-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.3 Calculation Examples for Cycle T ime and Response T ime 12-12. . . . . . . . . . . . .
12.4 Interrupt Response T ime 12-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.5 Calculation Example for the Interrupt Response T ime 12-17. . . . . . . . . . . . . . . . .
12.6 Reproducibility of Delay and Cyclic Interrupts 12-18. . . . . . . . . . . . . . . . . . . . . . . .
A Standards and Approvals
B Execution T imes of SFCs/SFBs and IEC Functions B-1. . . . . . . . . . . . . . . . . . . . . . . .
B.1 SFCs und SFBs B-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B.2 IEC T imers and IEC Counters B-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B.3 IEC Functions B-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C System Status List in the CPUs
D Dimension Drawings
E Guidelines for Handling Electrostatic Sensitive Devices (ESD)
E.1 What is ESD? E-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E.2 Electrostatic Charging of Persons E-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E.3 General Protective Measures against Electrostatic Discharge Damage E-4. .
F Spare Parts and Accessories for the CPUs of the S7-300
G SIMA TIC S7 Reference Literature
H Safety of Electronic Control Equipment
I Siemens W orldwide
J List of Abbreviations
Glossary
Index
Contents