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GCOM is a data link protocol used for data exchange with the help of message passing between
external computers and Advant OCS stations/controllers. The protocol is available for VAX
computers. The following data link protocol alternatives are supported:
•
IEEE 802.2 class 1 logical link control and IEEE 802.3 CSMA/CD medium access control
•
CCITT recommendation X.25.2 LAPB with transmission rate 19.2 or 50 kbits/sec
•
ADLP-10 (ABB Data Link Protocol), an asynchronous protocol based on ECMA 16 and
ECMA 24, with transmission rate of 9.6 kbits/sec.
You can duplicate GCOM to achieve full redundancy.
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The processor module and optional communication boards are located in a controller subrack.
This cannot accommodate any process I/O. One way you can connect such I/O is to use I/O
subracks. With an electrical bus extension the I/O subracks can be located close to the controller
subrack.
For increased availability, you can duplicate CPUs, bus extension and cables.
illustrates a bus extension comprising two I/O subracks.
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I/O subrack 1
I/O subrack 2
Controller subrack
Total length of bus extension
cable is max 12 m (39 ft).
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B
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4
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For redundant S100 I/O bus
duplicate CPUs, bus extenders
and cables.
The I/O bus connected to the
left CPU should be connected
to the left bus extender and
vice versa.
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 ...
Страница 563: ......
Страница 564: ...3BSE 002 415R701 Rev A March 2000 ...