Advant
®
Controller 450 User’s Guide
Section 2.3.2 Controller and I/O
3BSE 002 415R701 Rev A
2-51
Regardless of the shut-down method, the result and consequences are:
•
Application program execution immediately stops.
•
There is zero output to the process objects.
•
Output relays are de-energized.
•
The RAM, including system software and application program, is secured against loss of
power by a supply of power from a battery backup.
•
Important process values, for example totalized flow values, register content, and so on,
can be stored automatically if measures are taken when the application start program is
designed.
•
The system is ready for a restart. You perform a restart by operating the actual mains
switch when the reason for the shut-down is resolved.
The application start program also facilitates a different way to start up the application,
depending on the time of power supply disconnection.
A note about the application of distributed S100 I/O, S400 I/O and S800 I/O:
If such an I/O system is powered from the central system (the mains distributed), then the
instructions and consequences given above in connection to a shut-down are relevant.
If, however, the distributed S100 I/O system, the S400 I/O system and the S800 I/O system are
powered by a separate mains, separate safety switch, and so on, then you must make a
distinction between a “central” and “local” shut-down.
S100 I/O
A central shut-down causes the S100 I/O outputs to go to zero.
A local shut-down causes the S100 I/O outputs to go to zero.
S400 I/O
A central shut-down causes the S400 I/O outputs to freeze or go to zero, as applicable.
A local shut-down causes the S400 I/O outputs to go to zero.
S800 I/O
A central shut-down causes the S800 I/O outputs to freeze or go to a predefined value,
as applicable.
A local shut-down causes the S800 I/O outputs to go to zero.
Regarding the output behavior attached to S100 I/O, S400 I/O and S800 I/O, please be aware
that zero output is the designed state. It cannot be guaranteed under all conditions, for example,
in the event of a failure.
Manual Stop
Besides the most drastic shut-down method—disconnecting the power supply—other methods
of “stopping” the controller are available to you.
You can stop program execution as follows:
•
Use the operator’s interface on the processor module front.
–
Set the start mode selector in 2 (STOP) position.
–
Depress the ENTER button and the system stops.
•
Use an engineering station connected to the controller.
–
Command ECONFIG in an adequate session.
Содержание Advant Controller 450
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Страница 496: ...Advant Controller 450 User s Guide Appendix C Delivery Documentation C 2 3BSE 002 415R701 Rev A ...
Страница 508: ...Advant Controller 450 User s Guide Appendix D Item Designations D 12 3BSE 002 415R701 Rev A ...
Страница 514: ...Advant Controller 450 User s Guide Appendix E Current Consumption and Heat Dissipation E 6 3BSE 002 415R701 Rev A ...
Страница 518: ...Advant Controller 450 User s Guide Appendix F Load Calculation F 4 3BSE 002 415R701 Rev A ...
Страница 522: ...Advant Controller 450 User s Guide Appendix G Memory Calculation G 4 3BSE 002 415R701 Rev A ...
Страница 528: ...Advant Controller 450 User s Guide Appendix H Halt Codes H 6 3BSE 002 415R701 Rev A ...
Страница 561: ...Advant Controller 450 User s Guide Index 3BSE 002 415R701 Rev A iii V Valve control 1 102 VT100 terminal 1 105 ...
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Страница 564: ...3BSE 002 415R701 Rev A March 2000 ...