Fire and Gas Monitoring Panel ST7-HV

Transcription

1 Fire and Gas Monitoring Panel ST7-HV

2 INTRODUCTION TO THE ST7-HV SYSTEM The ST7-HV system is a programmable PLC suitable for safety and security installations with a high technological and economic content to ensure safety of people and protection of assets within commercial and industrial environments. This system is ideal for process plants, refineries, energy production factories, governmental and public buildings, military, naval installations and many more. The ST7-HV system has state of the art technology that covers fire & gas detection as well as CCTV and security systems. The ST7-HV system has been designed to meet a variety of functions, reliability and availability requirements which is ideal for companies that operate in the field of energy production and transformation. The ST7-HV has excellent resistance to electromagnetic disturbances and is capable of continuous operation in difficult environmental conditions. Its capacity is set to the compliance with the requirements of fault tolerance set by the International Standards IEC Due to its compliance, it has obtained the level SIL3 (Safety Integrity Level 3) certified by a third party agency. The ST7-HV system is certified to perform many protection functions. It is in compliance with the applicable regulations listed in the standards for the construction products (CPD & CPR) and in UL laboratories to meet the corresponding US standards. Externally, the panel ST7-HV is similar to a safety PLC; it is composed by electronic cards mechanically compatible, which are inserted in 19 racks. The panel ST7-HV can have from 1 to 10 racks, each rack has 13 card slots. About 20 different cards can be used, each dedicated to different functions such as firefighting, gas detection, intruder alarm, technologic control and communication with other systems and/or panels. The ST7-HV panel has a dedicated rack for the operator s interface and it is constituted by a big alphanumeric display, by a keyboard and led indications to show the system status. Each panel ST7-HV has its own modular feeder and battery charger which allows the panel to work even without an external power supply. The ST7-HV system can communicate with other panels of the same type and with supervisory and SCADA systems. This can be done using both proprietary and standard protocols, such as Ethernet TCP/IP and Modbus. Special features Hot backup redundant CPU s Hot swap of all cards, including CPU s, with automatic reconfiguration Redundant and looped communication bus between cards and CPU s Periodical automatic testing of card inputs and outputs Self-diagnostics and signaling of card and CPU fault Automatic safety disabling of malfunctioning cards Page 1 of 9

3 APPLICATIONS OF THE ST7-HV SYSTEM The ST7-HV system is commonly used for: Automatic fire extinguishing control systems and in the case of complex firefighting installation sectioning. This is in conformity with the Construction Products Directive (CPD); Integrated systems, including fire, intruder/burglar alarm, CCTV and technologic control functions; Safety & Security systems, where panels operate as master or slave units. Panels communicate through networks (of a fiber optic and fault tolerant type too) and are connected to DCS or SCADA through Modbus protocol Ethernet and OPC Server; Fire protection with special logics that are in accordance with the recommendations of the NFPA standard; Gas detection and measurement systems. It is ATEX-certifiable and capable of interfacing with 4 & 20 ma output toxic or explosive gas detectors. All of these functions can coexist or be configured to meet specific customer requirements. SIL systems The ST7-HV panel can be used to produce systems certifiable to SIL2 and SIL3. This is with the requirements of the applicable regulations that refer to the IEC and deriving standards. In these applications, the ST7-HV plays the role of logic solver so it represents the core of the system and it can obtain the SIL2 or SIL3 level depending on the cards selected to be used with it. Clearly, to reach the expected safety level, the field devices (inputs and outputs) must also be certified accordingly, in addition to the panel. Page 2 of 9

4 According to the standards, the ST7-HV panel (or system), can be considered a PES (Programmable Electronic Safety-related system) and can be configured to perform the following safety functions: Monitor digital inputs from field devices (conventional detectors, pressure switches, release pushbuttons, selector switches, etc.) Monitor analogue 4-20mA inputs from field devices (explosive gas, toxic gas, oxygen and heat detectors, etc.) Elaboration of logics as a function of input status (including fire extinguishing control to EN ) Control actuators (solenoids, relays, etc.). In the past, certified safety functions were limited only to processed applications and gas detection due to the small availability of sensor and actuators on the market that were SIL certified; now addressable flame detectors with this certification are highly available and automatic fire extinguishing command devices such as solenoids for cylinders, deluge valves and fire monitors. Page 3 of 9

5 PARTICULAR NOTES FOR SAFETY APPLICATIONS There will always be two CPU s. A SIL-certified ST7-HV panel can contain different cards and perform different functions from those that must be certified to SIL. For whole system configuration, refer to ST7-HV panel Safety Manual. Should you have any doubts, please contact Silver-Tec technical service. SIL 2 Configuration (SINGLE/MONO) The I/O cards do not need to be duplicated. The I/O cards not relating to SIL2-certified safety functions do not need to be duplicated. SIL 3 Configuration (REDUNDANT/DUPLEX) In case of automatic fire extinguishing control, sensors must be installed on two different detection lines. The I/O cards concerning SIL3-certified safety functions must be duplicated in different racks. Consequently, also the racks are duplicated. The redundant I/O cards must be evenly spread in the redundant racks. Page 4 of 9

6 ST7LAR&C-M Detection, alarm and control from analogue inputs (typical of gas detectors) ST7LAR&C-D Detection, alarm and control from analogue inputs (typical of gas detection) ST7LDR&C-M Detection, alarm and control from analogue inputs (typical of fire detectors) ST7LDR&C-D Detection, alarm and control from analogue inputs (typical of fire detectors) ST7LDR&C-M Detection and automatic extinguishing control according to the standard EN ST7LDR&C-D Detection and automatic extinguishing control according to the standard EN Page 5 of 9

7 Communication network ST7-HV is suitable for use in systems where several panels fully interact on a network. They must entirely maintain their autonomy in respective area control. Panels can communicate with supervisory systems on an Ethernet LAN, and with external elements (e.g. DCS, PLC, SCADA systems) via MODBUS RTU. Communication on a network enables the integration of different-vector systems, also including faulttolerant loop architectures. Page 6 of 9

8 Summary of ST7-HV system Characteristics of device management & addressing Conventional detectors Addressable detectors and devices Supported protocols and addressable devices Technologic and I/O devices 4-20mA detectors Gas detectors Fire extinguishing control Fire extinguishing control (directional valves) Repeater panels Remote control Graphic maps Interfacing with SCADA system Panel configuration Communication network Connection to other equipment Multi-panel architecture Multiple input rack cards for collective lines; alarm threshold current values can be adapted to most detectors. Loop rack cards, up to 127 addresses per loop; up to 130 cards in panel version ST7- HV/10R. On the same panel, cards with addressable loops belonging to different brands and protocols can be used at the same time Rack cards for digital I/O s and analogue addressable I/O modules on field bus; SSP proprietary, up to 127 addresses per bus. Rack cards, with one/two 4-20 ma inputs, for direct detector connection and analogue addressable modules on field bus. Rack cards with individual display and addressable modules on bus. Special rack cards (ECD)*, certified for this function, with no logic and control limitation. *= electric automatic control and delay device to EN Special rack cards (ECD)*, certified for this function, with no logic and control limitation. Certified for 64 extinguishing zones (ST7-HV/10R). Addressable, on SSP serial bus, LCD display, 255 event-related messages. PC with SILVER-VIEW software Silver-View interactive program, with different access levels and functions Standard MODBUS RTU protocol; proprietary protocol on Ethernet available upon request. Local and remote, by means of PC and ProST7 program. TCP/IP on Ethernet, with communication and consistency control. Cards and MODBUS RTU protocol Ethernet and Modbus, copper of optic fibre. Power supply Feeder Battery charger Several kind of feeder from 4 to 20A are available and usable in parallel; all of them are certified EN 54-4 and are in accordance with CPD / CPR With fault indication in case of mains supply failure, battery charger or battery fault, overheating. Can be coupled with feeder. Battery charge and aging status monitoring, through microcontroller-processed algorithm; thermal compensation during battery charging; testing button; battery capacity < = 110 Ah. Page 7 of 9

9 Mechanic modularity and construction characteristics of the panel Structure Front Expansion and rack Terminal blocks Card installation Card & CPU replacement Card interconnection Cabinet with front door and swivel chassis for standard 19 racks ST7-HV/1R for wall mounting L=600 H=700 P=400mm ST7-HV/2R for wall mounting L=600 H=1100 P=400mm ST7-HV/10R self-standing L=800 H=2100 P=400mm Non-standard panels can be produced, upon request, using different size cabinets. Acrylic glass door, lockable, with alarm switch. By addition of 13-card slot racks; maximum 10 (+1 base) racks, for maximum 130 cards. Racks can be wired to terminal blocks via flat cable, or cable with plug connector. There can be of two types of terminal blocks: tabbed terminal for DIN rail terminals and electronics (cables up to 4 mm2) connected to rack cards using wired ribbon cable, or via the terminals with electro-mechanical cable assemblies and push-in connector on the rack. Front plug-in, with locking screws. Just change! (no need to either switch the panel off or make changes to the connections and wiring). Serial on rack backplane, and looped redundant bus, managed by FPGA. Logic configuration of the panel Logics Zones Panel interaction Protection Windows-compatible user-friendly program Silver-Pro enables the configuration of: I/O status variations, expressed in AND/OR logic gates. Time and time period-based associations. Associations relating to any input/output internal to the panel. Associations and events, or statuses, relating to other panels on the network. Distinct logics for events relating to fire-fighting, intruder alarm and technological control functions. Special logics relating to fire extinguishing functions (including directional valve control). Voting logics 1oo2, 2oo2, or alike, conforming to international specifications (ARAMCO and similar). 300 zones for area 1 (fire) zones for area 2 (intruder and technologic control alarm); each zone can be attributed 99 inputs, 99 outputs and 99 distinct logic associations. Logics can be configured for interaction of panels on a network, the number of interconnected panels being 99. Once the panel has been configured, a protection function can be enabled, so that modifications can be made only by people in possession of a USB-port hardware key and a compatible code. This function, whose enabling is at Customer s discretion, prevents unauthorized modifications after testing. Page 8 of 9

10 Electronic modularity Display Main or secondary CPU Cards in base rack Cards in each additional rack Card termination Cards in expansion racks LCD, LED retro-illuminated, graphic type, with thirty 52-character lines; can display events concerning other panels on the network. - ST7-CP1101-N CPU Rj45 (Hitachi, 32 bits, with internal operating system; integrated watchdog; 4 MByte Data Memory SRAM + 2 MByte Program Memory on Flash Eprom, 2 RS 232 ports + 1 port Ethernet 10/100 base TX per CPU). - Display + keyboard ST7- ST7-DU1001-N - Default inputs/outputs ST7-FT Default repetition FT3201-N (terminals) or FT3101-N (relays) - Back Plane BP1301-N - BP1401-N Rack backplane (flat cable) - BP1402-N Rack backplane (plug cable) - RC1201-N Rack controller - BL0000-N Blank card (empty slots) - FT3201-NTerminal block module, 16 terminals - FT3104-N -1Terminal block module, 8 terminals - PC2001-S Plug cable, 16 wires - PC2001-R Double plug cable, 16 wires, for redundant applications - PC2101-S Plug cable, 2 wires - PC2101-R Double plug cable, 4 wires, for redundant applications - PC2201-S Plug cable, 8 wires - PC2201-R Double plug cable, 8 wires, for redundant applications - PC2301-S Plug cable, 4 wires - PC2301-R Double plug cable, 4 wires, for redundant applications - PC2401-S Plug cable, 6 wires - PC2501-S Plug cable, 4 wires - PC2501-R Double plug cable, 4 wires, for redundant applications - FT3103-N Terminal block card, 8 voltage-free relays - FT3102-N Terminal block card, 16 voltage-free relays - FT3104-N Terminal block card, 4x2A outputs, polarity reversing, for OC6201-S - ST7-IC4001 Eight inputs, conventional detection - ST7-IC5001 One 4-20 ma analogue input - ST7-IC5002 Two analogue inputs - ST7-IC5003 Eight analogue inputs - ST7-OC6001 Eight 500 ma monitored outputs - ST7-OC6101 Sixteen open collector outputs - ST7-OC6201 Eight polarity reversal-monitored outputs - ST7-OC6002 Four monitored outputs - ST7-EX9001 Fire extinguishing control (EDC), certified to EN ST7-LS9002 Special logic control - ST7-AL7001-S Addressable analogic loop control DCP (UL) - ST7-AL7002-S Analogue addressable loop control, ESP protocol - ST7-AL7003-S Analogue addressable loop control, SSP protocol - ST7-AL7004-S Analogue addressable loop control, Apollo protocol - ST7-MD8001-N MODBUS RTU card - ST7-AL7005-S Addressable bus control, System Sensor protocol Page 9 of 9