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35 BASIC CONCEPT
35.9 State Transition of a System Using the SIL2 Process CPU
35.9
State Transition of a System Using the SIL2
Process CPU
The following figure shows the state transition of the system after start-up.
*1 When both systems are powered off, both systems enter the power-off state regardless of the system type.
System A: Off
System B: Off
Backup mode
System A: Off
System B: Control system
System A: Control system
System B: Standby system
System A: Standby system
System B: Control system
System A is powered off.
(Systems are switched.)
System A: Control system
System B: Off
System A is powered off.
System A is powered on.
System switching
System B is powered off.
System B is powered on.
Both systems are
powered on.
Both systems are powered off.
*1
System B is powered on.
(Forced start of the control system)
System A is powered on.
(Forced start of the control system)
System B is powered off.
(Systems are switched.)
Содержание MELSEC iQ-R-R00CPU
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Страница 151: ...9 MONITOR FUNCTION 9 1 Real Time Monitor Function 149 9 MEMO ...
Страница 323: ...18 SEQUENCE SCAN SYNCHRONIZATION SAMPLING FUNCTION 321 18 MEMO ...
Страница 330: ...328 20 ROUTING SETTING 20 3 Precautions MEMO ...
Страница 423: ...26 BASIC CONCEPT 26 8 State Transition of the Redundant System 421 26 MEMO ...
Страница 524: ...522 30 MAINTENANCE AND INSPECTION FOR A REDUNDANT SYSTEM 30 1 Module Replacement in the Redundant System MEMO ...
Страница 1009: ...APPX Appendix 14 List of Available SQL Commands for CPU Module Database Access Function 1007 A MEMO ...
Страница 1014: ...1012 APPX Appendix 15 Added and Enhanced Functions MEMO ...
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