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There are two alternatives for network communication redundancy available.
Normally, the duplicated submodules are distributed to separate carrier modules, an
arrangement which provides maximum availability. See
.
You can also mount duplicated MasterBus 300 communication submodules in a common carrier
module. This gives rise to a common point of failure, that is, reduced integrity and reduced
availability.
From a functional viewpoint, the redundant networks work in a hot stand-by implementation.
This means that the primary network has the communication responsibility. The secondary
network stands by to take over in case of a fault in the primary network. In the stand-by mode of
operation, basic messages for diagnostics are continuously sent and received.
*&20
The information given above for the network communication is also applicable to GCOM,
except for the communication submodule which for GCOM is called CI543.
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The communication to a remote unit can be equipped with transmission media redundancy.
This includes:
•
One communication interface submodule in the controller
•
Two cables including duplicated modems
•
One remote unit.
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Содержание Advant Controller 450
Страница 1: ...Advant OCS with Master software GYDQW RQWUROOHU User s Guide 3BSE 002 415R701 Rev A ...
Страница 26: ...Advant Controller 450 User s Guide Table of Contents 3BSE 002 415R701 Rev A xvi ...
Страница 30: ...Advant Controller 450 User s Guide Table of Contents 3BSE 002 415R701 Rev A xx ...
Страница 488: ... GYDQW RQWUROOHU 8VHU V XLGH SSHQGL DUGZDUH 0RGXOHV A 48 3BSE 002 415R701 Rev A ...
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 ...
Страница 562: ...Advant Controller 450 User s Guide Index iv 3BSE 002 415R701 Rev A ...
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Страница 564: ...3BSE 002 415R701 Rev A March 2000 ...