AS 1670 3 1997 fire detection, warning control and intercom

Title AS 1670.3-1997 Fire detection, warning control and intercom systems - System, design, installation and commissioning - Monitoring network performance Licensee Licensed to LUU MINH LUAN on 25 Feb 2002 Conditions of use This is a licensed electronic copy of a document where copyright is owned or managed by Standards Australia International Your licence is a single user licence and the document may not be stored, transferred or otherwise distributed on a network You may also make one paper copy of this document if required Web Check-up AS 1670.3—1997 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Australian Standard Fire detection, warning, control and intercom systems—System design, installation and commissioning Part 3: Monitoring network performance This Australian Standard was prepared by Committee FP/2, Fire Detection, Warning, Control and Intercom Systems It was approved on behalf of the Council of Standards Australia on December 1996 and published on February 1997 The following interests are represented on Committee FP/2: Audio Engineering Society Australian Building Codes Board Australian Chamber of Commerce and Industry Australian Chamber of Manufactures Australian Electrical and Electronic Manufacturers Association Australian Fire Authorities Council Australian Fire Protection Association Commonwealth Fire Board Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited CSIRO — Division of Building, Construction and Engineering Deafness Forum of Australia Department of Defence Fire Protection Industry Association of Australia Fire Protection Industry Contractors Association of New Zealand Insurance Council of Australia National Electrical Contractors Association of Australia New Zealand Fire Equipment Association New Zealand Fire Protection Association New Zealand Fire Protection Industry Contractors Association Property Council of Australia Scientific Services Laboratory AGAL — Department of Administrative Services Telstra Corporation Review of Australian Standards To keep abreast of progress in industry, Australi an Standards are subject to periodic review and are kept up to date by the issue of amendments or new editions as necessary It is important therefore that Standards users ensure that they are in possession of the latest editi on, and any amendments thereto Full details of all Australi an Standards and related publicati ons will be found in the Standards Australia Catalogue of Publications; this information is supplemented each month by the magazine ‘The Australian Standard’, which subscribing members receive, and which gives details of new publications, new editions and amendments, and of withdrawn Standards Suggestions for improvements to Australian Standards, addressed to the head office of Standards Australia, are welcomed Notification of any inaccuracy or ambiguity found in an Australian Standard should be made wit hout delay in order that the matter may be investigated and appropriate action taken This Standard was issued in draft form for comment as DR 96018 AS 1670.3—1997 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Australian Standard Fire detection, warning, control and intercom systems—System design, installation and commissioning Part 3: Monitoring network performance PUBLISHED BY STANDARDS AUSTRALIA (STANDARDS ASSOCIATION OF AUSTRALIA) THE CRESCENT, HOMEBUSH, NSW 2140 ISBN 7337 0911 AS 1670.3 — 1997 PREFACE This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee FP/2, Fire Detection, Warning, Control and Intercom Systems This Standard is a result of a consensus among representatives on the Joint Committee to produce it as an Australian Standard This Standard sets down minimum performance requirements for a network used to monitor automatic fire detection and alarm systems using the communications protocol defined in AS 4418.2, Supervisory control and data acquisition (SCADA)—Generic telecommunications interface and protocol, Part 2: Fire alarm systems This Standard has been published for the use of equipment manufacturers and monitoring service providers in the fire industry; however, other industry groups may find the performance requirements applicable Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited AS 4418.2 has been prepared to be consistent with requirements developed by IEC and published in the IEC 870 series of International Standards, Telecontrol equipment and systems The term ‘informative’ has been used in this Standard to define the application of the appendix to which it applies An ‘informative’ appendix is only for information and guidance  Copyright STANDARDS AUSTRALIA Users of Standards are reminded that copyright subsists in all Standards Australi a publications and software Except where the Copyri ght Act allows and except where provided for below no publi cati ons or software produced by Standards Austr alia may be reproduced, stored in a retri eval system in any form or transmitt ed by any means wit hout prior permission in wri ti ng from Standards Austr alia Permission may be conditi onal on an appropri ate royalty payment Requests for permission and information on commercial soft ware royalt ies should be dir ected to the head off ice of Standards Australi a Standards Austr alia wil l permit up to 10 percent of the technical content pages of a Standard to be copied for use exclusively in-house by purchasers of the Standard without payment of a royalty or advice to Standards Austr alia Standards Austr alia will also permit the inclusion of its copyri ght material in computer soft ware programs for no royalt y payment provided such programs are used exclusively in-house by the creators of the programs Care should be taken to ensure that material used is fr om the current editi on of the Standard and that it is updated whenever the Standard is amended or revised The number and date of the Standard should therefore be clearly identif ied The use of materi al in pri nt form or in computer soft ware programs to be used commerciall y, wit h or wit hout payment, or in commercial contr acts is subject to the payment of a royalt y This policy may be varied by Standards Australi a at any ti me 3 AS 1670.3 — 1997 CONTENTS Page Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited SECTION SCOPE AND GENERAL 1.1 SCOPE 1.2 APPLICATION 1.3 REFERENCED AND RELATED DOCUMENTS 1.4 DEFINITIONS 4 SECTION PERFORMANCE REQUIREMENTS 2.1 GENERAL 2.2 NON-PERMANENTLY CONNECTED CONTROLLED STATIONS 2.3 PERMANENTLY CONNECTED CONTROLLED STATIONS 2.4 MULTIPLE STATUS CHANGES 6 APPENDIX A SYSTEM OVERVIEW First published as AS 1670.3— 1997 AS 1670.3 — 1997 STANDARDS AUSTRALIA Australian Standard Fire detection, warning, control and intercom systems— System design, installation and commissioning Part 3: Monitoring network performance S E C T I O N S CO P E A N D G E NE R A L 1.1 SCOPE This Standard sets out performance requirements for fire alarm monitoring networks using the telecommunications protocol defined in AS 4418.2 1.2 APPLICATION The performance requirements of this Standard are applicable to supervisory control and data acquistion (SCADA) networks for fire alarm monitoring applications Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited NOTE: See Appendix A for system overview The performance requirements for both permanently connected controlled stations and non-permanently connected controlled stations are specified NOTE: Non-permanently connected controlled stations are not considered adequate for installations required to be monitored under the Building Code of Australia 1.3 REFERENCED AND RELATED DOCUMENTS 1.3.1 Referenced documents AS 2484 2484.2 The following documents are referred to in this Standard: Fire— Glossary of terms Part 2: Fire protection and firefighting equipment AS/NZS 4418 Supervisory control and data acquisition —Generic telecommunications interface and protocol 4418.2 Part 2: Fire alarm systems IEC 870 870-4 870-5-5 1.3.2 Related documents Attention is drawn to the following related documents: IEC 870 870-1-1 870-1-2 870-1-3 870-1-4 IEC 870-2-1 870-3 Telecontrol equipment and systems Part 4: Performance requirements Part 5: Transmission protocols— Section 5: Basic application functions Telecontrol equipment and systems Part 1: General considerations — Section 1: General principles Part 1: General considerations — Section 2: Guide for specifications Part 1: General considerations — Section 3: Glossary Part 1: General considerations— Section 4: Basic aspects of telecontrol data transmission and organization of standards IEC 870-5 and IEC 870-6 Part 2: Operating conditions — Section 1: Environmental conditions and power supplies Part 3: Interfaces (electrical characteristics) COPYRIGHT IEC 870-5-1 870-5-2 870-5-3 870-5-4 AS 1670.3 — 1997 Part 5: Transmission protocols— Section 1: Transmission frame formats Part 5: Transmission protocols— Section 2: Link transmission procedures Part 5: Transmission protocols— Section 3: General structure of application data Part 5: Transmission protocols — Section 4: Definition and coding of application information elements 1.4 DEFINITIONS For the purpose of this Standard, the definitions in the IEC 870 series of Standards, AS 2484.2 and those below apply 1.4.1 Alarm signalling equipment (ASE)— equipment designed to communicate alarm and fault signals and other information between a fire alarm system and a monitoring service 1.4.2 Monitoring service — a controlling station which receives fire alarm signals and transfers the signals to a fire brigade via a direct data link Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited 1.4.3 Non-permanently connected controlled station — a controlled station which is not permanently connected to a controlling station, such as a station which utilizes the public switched telephone network to make the communications link 1.4.4 Permanently connected controlled station —a controlled station which is permanently connected, or appears permanently connected, to a controlling station COPYRIGHT AS 1670.3 — 1997 S E C T I O N P ER F OR MA N C E R E Q U I R E M E N T S 2.1 GENERAL The SCADA network shall conform to the requirements of the following performance classes, set out in IEC 870-4: (a) Reliability class R2 (MTBF ≥4000 h) (b) Maintainability class M3 (MTTR ≤12 h) (c) Repair time class RT3 (MRT ≤6 h) (d) Data integrity class I2 (IE ≤10 −10) The SCADA network configuration shall allow both non-permanently controlled stations and permanently connected controlled stations connected 2.2 NON-PERMANENTLY CONNECTED CONTROLLED STATIONS Nonpermanently connected controlled stations shall be configured to connect as point-to-point The SCADA network shall be configured to ensure the following: Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited (a) Status changes processed by the control and indicating equipment (CIE) are received by the controlling station within 10 s of the establishment of the connection between the controlled station and the controlling station NOTE: ASE should be configured to commence immediate calling of the controlling station upon confirmation of an alarm system status change (b) The alarm system status summary of the controlled station is reported to the controlling station at least once every 24 h (c) A test of the controlled station is undertaken by the controlling station at least once every 24 h 2.3 PERMANENTLY CONNECTED CONTROLLED STATIONS Permanently connected controlled stations shall be configured as point-to-point or multiple point-topoint Permanently connected controlled stations shall include an alternative facility which is used in the event of the loss of the permanent link If the time-out interval for repeated frame transmissions is exceeded on the permanent link, the controlled station shall attempt to contact the controlling station via the alternative facility In the event of the loss of the permanent link an indication shall be given at both the controlled station and the controlling station If the permanent link is unavailable, the performance requirements of Clause 2.2 shall be met The SCADA network shall be configured to ensure the following: (a) Actuating device alarm status changes processed by CIE are received by the controlling station within 15 s (b) A telecommunications link failure from the controlled station is detected by the controlling station within 90 s (c) Device fault, device isolate, alarm system isolate, CIE status and field terminal request status changes at the controlled station are received by the controlling station within 30 s of notification of the status change by the controlled station (d) CIE device configuration changes are received by the controlling station within 10 of notification (e) A test of the controlled station is undertaken by the controlling station at least once every 24 h (f) Availability class A3 (A ≥99.95%) of IEC 870-4 COPYRIGHT AS 1670.3 — 1997 2.4 MULTIPLE STATUS CHANGES If multiple status changes occur at the CIE simultaneously, the priority order for the controlled station to notify the controlling station shall be as follows: Actuating device alarm (b) CIE status (c) Actuating device fault (d) Actuating device isolate (e) CIE device configuration change (f) Building data change (g) Alarm system maintenance contractor change (h) Field terminal session Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited (a) COPYRIGHT AS 1670.3 — 1997 APPENDIX A SYSTEM OVERVIEW (Informative) A1 GENERAL The protocol allows for both permanently connected fire alarm systems and fire alarm systems which connect to the controlling station via the public switched telephone network Balanced transmission is used to ensure adequate reporting response of alarm conditions Polling is not used (in conformance to IEC 870-5-5 for balanced transmission); however, cyclic transmission from each controlled station may be used to confirm the integrity of the communications link Event initiated transmission is used to report alarm system status changes Messages are either SEND/CONFIRM (e.g for alarm system status, clock synchronization) or REQUEST/RESPOND (e.g for details of actuating device in alarm) Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Cyclic transmission is used by non-permanently connected controlled stations to report the alarm system status summary at least once every 24 h Permanently connected controlled stations may report an alarm system status summary or may use other techniques to ensure the integrity of the transmission path Whilst this Standard specifies many features and a high degree of functionality, other systems can still be accommodated Most responses from a controlled station allow a particular message from a particular controlling station to be ‘not implemented’ This can be used by manufacturers to enable the production of a partially functional yet fully compliant alarm system DTE For example, the text area available for the description of the location of the actuating devices may be used to describe the area of an alarm zone, thus permitting the connection of collective CIE In this case, references to actuating devices should be read as alarm zones A2 INITIALIZATION Initialization may occur as a result of a local power switch on, a local manual reset or the controlling station remotely resetting the controlled station When powered up and enabled, the alarm signalling equipment (ASE) will begin to attempt to establish the link to the controlling station When the link is established the controlling station begins an initialization procedure The following steps are undertaken: (a) The delay acquisition time is calculated to ensure the clocks are synchronized (b) The controlling station time is sent to the controlled station (c) Data resident in the controlled station is obtained by the controlling station This includes— (i) the manufacturer and product specification of the alarm system; (ii) the alarm system summary, which includes CIE fault status, alarm system maintenance contractor, building classification and number of occupants; and (iii) all actuating devices, their current status and location within the protected premises Once initialization has occurred, the data resident in the controlled station and controlling station should be identical If the link fails, however, a buffer is used to queue events for reporting upon re-establishment of the link If initialization occurs to a previously connected controlled station, the controlled station indicates to the controlling station whether or not the initialization is occurring with or without changes to local parameters This enables a more efficient initialization procedure to be undertaken by the controlling station COPYRIGHT AS 1670.3 — 1997 A3 CLOCK The controlling station is the master clock Clock synchronization occurs if time tags on messages received from controlled stations exceed 10 s variation from the controlling station time Prior to clocks being synchronized, the delay acquisition time is re-determined to allow for variations in the transmission link performance If more than ten clock synchronizations are required in any 24 h period, or the time variation exceeds 60 s, the controlling station operator is notified A4 STATUS CHANGES Status changes are reported spontaneously by the controlled station as event-initiated reports Both alarm system summary changes and fire alarms detected by actuating devices are reported in the following ways: (a) If the alarm system summary message reports a non-fire alarm controlled station status change, the controlling station interrogates the controlled station, if necessary, for details of the change Some changes, such as a change in the maintenance contractor, not require further interrogation All alarm system status changes are required to be obtained by the controlled station within the performance parameters of this Standard Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited (b) If the alarm state of an actuating device changes, the status of the actuating device is reported spontaneously by the controlled station to the controlling station A5 TESTING Remote testing of the controlled station is undertaken by the controlling station at least once every 24 h Testing may also be initiated at the controlled station Test initiation is followed by the controlled station reporting alarm, fault, isolate and normal conditions sequentially to the controlling station All conditions are acknowledged by the controlling station A6 FIELD TERMINAL Provision has been made to allow a dialogue between the controlled station and the controlling station via a terminal connected to the link This may be at the CIE or elsewhere (such as the manufacturer’s premises) Dialogue procedures are defined in AS 4418.2; however, the level and extent of data access is to be determined between the monitoring service provider and the maintenance contractor Terminal sessions may use the file transfer type idents, as defined in AS 4418.2, to obtain copies of data held by the controlling station, including event history logs, for the purpose of post-event investigation and analysis A7 LINK FAILURE A communications link failure results in permanently connected controlled stations attempting to use the alternative facility A failure to establish communications on both the permanent and alternative link is detected by the controlling station by the non-receipt of expected cyclic transmission messages and may result in the controlling station attempting to establish communications with the controlled station A failure of either communications link is reported at the controlling station and at the controlled station A8 EMERGENCY OPERATION A number of remote functions may be used upon request to assist with the operation of the controlled station in an emergency situation These include— (a) enabling and disabling the local emergency warning system; (b) enabling and disabling the local warning bell; (c) resetting actuating devices; and (d) isolating, and de-isolating, actuating devices in a particular device address range These functions allow for basic operations to be executed without the need for responding firefighters to access the fire indicator panel COPYRIGHT AS 1670.3 — 1997 10 A9 LOCAL OPERATION OF THE CONTROLLED STATION If desired, during maintenance for example, the controlled station can be effectively isolated from the controlling station Communication continues, but events not result in actions by controlling station operators Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Alarm system isolation is protected by a means such as the use of passwords, whether the isolation is initiated at the controlling station or the controlled station COPYRIGHT ... First published as AS 1670.3— 1997 AS 1670.3 — 1997 STANDARDS AUSTRALIA Australian Standard Fire detection, warning, control and intercom systems— System design, installation and commissioning... Australian Standard Fire detection, warning, control and intercom systems—System design, installation and commissioning Part 3: Monitoring network performance PUBLISHED BY STANDARDS AUSTRALIA (STANDARDS... FP/2, Fire Detection, Warning, Control and Intercom Systems This Standard is a result of a consensus among representatives on the Joint Committee to produce it as an Australian Standard This Standard