ABB DI801

ABB DI801
厦门莫格电气自动化有限公司
联系人：雷琳
电话：/0592-6808394，Q

控制器局域网（ Contro llerA reaN etwo rk, CAN）是一种多主方式的串行通讯总线。CAN 总线具有较高的位速率， 很强的抗电磁干扰性， 完善的错误检测机制， 在汽车、制造业以及航空工业领域中得到广泛应用 。由于船舶机舱环境较为恶劣， 且船舶航行过程中维修条件不如陆上， 对CAN 通信的可靠性要求很高， 采取双CAN 冗余总线提高通信可靠性。本文提出一种基于STM32F105微控制器的双CAN 冗余设计方案。
　　1 硬件平台组成
　　STM32F105是STM icroe lectron ics公司推出的一款基于ARM Co rtex- M3内核的32位微控制器， 其内核是专门设计于满足高性能、低功耗、实时应用的嵌入式领域的要求。由于采用Thumb - 2指令集，与ARM7微控制器相比STM32运行速度较多可快35% 且代码较多节省45% 。较高的主频和代码执行效率使系统在进行CAN 总线数据收发的同时仍可运行总线冗余算法。STM32F105微控制器内部集成2路独立的CAN 控制器， 控制器集成在芯片内部， 避免了总线外扩引入的干扰， 同时简化了电路设计、降低成本。
　　系统使用两条完全独立的CAN 总线， 两个CAN 总线收发器和总线控制器， 实现物理层、数据链路层的全面冗余。在初始化时两个控制器被同时激活， 一个作为主CAN, 另一个作为从CAN, 为主控制器的备份。正常运作时， 数据通过主CAN **发送； 当主CAN 总线繁忙时， 从CAN 总线分担部分通信流量； 而当主CAN 总线发生故障时， 数据转移至从CAN 控制器传输， 反之亦然。在任一总线发生故障时，数据都能经由另一条总线传输， 而当两条总线都正常时， 使用两总线同时传输， 增加约1倍的通信带宽，这样在保证了通信可靠性的同时提高了实时性。
　　CAN 总线接口电路设计如图1所示， 使用T JA1050作为总线收发器， 它完成CAN 控制器与物理总线之间的电平转换和差动收发。尽管TJA1050本身具备一定的保护能力， 但其与总线接口部分还是采用一定的安全和抗干扰措施； T JA1050的CANH 和CANL与地之间并联两只10pF的小电容， 可以滤除总线上的高频干扰； 另外， 为了增强CAN 总线节点的抗干扰能力， 总线输入端与地之间分别接入一只瞬态抑制二极管， 当两输入与地之间出现瞬变干扰时， 收发器输入端电压被钳位在安全范围。
　　为防止总线过压造成节点损坏， STM32F105内置CAN 控制器的数据收发引脚并不与TJA1050直接相连， 通过ADuM1201磁隔离器实现信号隔离传输。与传统光耦隔离相比， 磁隔离简化了隔离电路设计， 并且磁隔离芯片的功耗很低， 大约相当于光耦隔离的1 /10。除了将CAN 数据信号隔离外，TJA1050T使用的电源和地也必须与系统完全隔离， 使用5V 隔离输出的开关电源模块IB0505LS提供隔离电源。由于CAN 总线数据传输率较高， 为了提高信号质量， 网络拓扑结构应尽量设计成单线结构以避免信号反射， 同时终端连接120欧姆左右的匹配电阻。
 
Large IP rated electrical switchboard control cabinet 900 x 340 x 1810mm


Marechal Cutler HammerDS 15 3 Phase decontactor 15A weatherproof M90 440 VAC


Industrial Switch Board 400A Main Switch INS400 Merlin Gerin NS100N NS250N


Wilco Metal 30A E430P Phase 3 plug 4 PIN 500Volt 30AMP AC Only V/CS/E430P


Allen Bradley 1394C SJT 10D system 10kW digital servo control


Stainless rittal switchboard distribution control box contactors & power supply


Allen Bradley 1394C-AM75-IH 15kW AC servo controller


Telemecanique Square D LC1D150 Contractor


Klockner-Moelle?r DIL 3-22 Contactor 45KW


Fuji FVR 150G7S-4EX 3 phase 23 kVA VARIABLE SPEED DRIVE


Large rittal switchboard distribution control box redundant E stop contactor


Square D I-line I Line busway bus take off box with 225A breaker 36KA


Fuji FVR 022G5S7Z single phase 240VAC input 5kW output VARIABLE SPEED DRIVE


Fuji FVR 004G7S-7EX 1.1kVA single phase input 200-240VAC variable speed drive


Ruckstellung Circuit Breaker motor protection CTI-50


Fuji FVR 040G7S-4EX 6.9kVA three phase 380-460VAC input variable speed drive


Set of 5 MCC cabinets with overhead heavy busbar distribution switchboard


Eagle Signal Controls Danaher HP55A5 Cycl Flex reset timer


Pedestrian Crossing Switch & Audible Alarm Unit


Fuji FVR1.5E9S-4JE 2.8kVA three phase variable speed drive 380-480VAC input


Fortress security Industrial safety Interlock switch


Black Automatic Controls Type 8039A corsham pressostat pressure switch


Ter*i TGJ 125 Circuit Breaker 3 Pole 100-125A


Ter*i Electric TO-125BA Circuit Breaker 3 Pole AC660V DC250V 125A


Ter*i nonautomatic TO-100BA AC550 DC250V 3 Pole Circuit Breaker 100A


Cooper Bussmann 170M6814D 1000A Din 3 fuse links


Ter*i TemBreak 50Amp adjustable trip 3 Pole Circuit Breaker XH125NJ


Ter*i TemBreak 63Amp adjustable trip 3 Pole Circuit Breaker XH125NJ


SQUARE D Class 9012 QBW-21 Ser C Industrial pressure switch 13-425PSI .9-29BAR


SQUARE D Class 9012 GCW-1 Ser C Machine Tool Pressure Switch 500.0 psig dec.


NHP Concept Premier panel board distribution switchboard 400Amp switch 355A bus


CMG 3 phase motor soft starter 23A FLC Type DGE4-0023S POWERSOFTDG CA7 contactor


ABB PST30-600-70 


CMG 3 phase motor soft starter Vacon Start VS 11kw in enclosure


Bernstein Classic SID-UV12 M Rastg 601.1431.869 Wire Type E Stop Switch


Plastic junction or control box 560mm x 390mm x 200mm


Plastic junction or control box 580mm x 280mm x 200mm


Plastic junction or control box 580mm x 280mm x 140mm


Temporary 3 Phase Power distribution board 9 x GPO External Switch


Temporary 3 Phase Power distribution board 1 single 9 dual x GPO 1 3phase outlet


Multi tap power transformer TF-4174A


Temporary 3 Phase Power distribution board 6 Single phase 2 x 20A 3phase outlet


Temporary 3 Phase Power distribution board 6 Single 2 x 20A 3phase outlet


Temporary 3 Phase Power distribution board 6 x GPO wooden stand


Strain Gauge TX Transmitter WT127-6084120


ABB SACE E6 E6H 63 6300A Air circuit breaker PR122/P


Square D C54B2 Limit Switch


SQUARE D Cl 9012 GAW-2 Ser C Machine Tool Pressure Switch 1-40 psig 7-275 KPa


SQUARE D Cl 9012 ACW-5 Ser B Industrial Pressure Switch 1-75 PSI Diff'l 4-15 PSI


SQUARE D 9012 ACW-5 Ser B Industrial Pressure Switch 1-75 PSI Diff'l 4-15 PSI


RELIANCE MAXITRON AC/DC CONVERTOR DRIVE Type S6 8003 Part 837.23.03 G


SQUARE D Cl 9012 ACW-4 Industrial Pressure Switch Range 7-137 kPa Diff'l 7-41


Temporary or wall mount 3 phase power distribution board with RCD


Heavy duty line filter power conditioner AEE Capacitor Type FW


Lifeguard 7 Temporary Electrical Distribution Board


IP Rated 3 Phase 125 Amp 125A Isolator Switch


Merlin Gerin IP Rated 3 Phase 160 Amp 160A Isolator Switch


NHP 3 Phase isolator in metal IP rated enclosure


Sirco 125A 125 amp 3 Phase Isolator Switch in metal IP rated enclosure


Stromberg OESA 200 B3 200A 200 Amp HRC fused switch in metal IP rated enclosure


CUTLER HAMMER D26MTE PNEUMATIC TIME DELAY FOR TYPE M RELAY ON-DELAY 0.1-180SEC


ABB Electrical start stop box with attached timer indicator and alarm


630A Distribution board backup generator switch


Fuji EFL-7.5G11-4 3phase RFI filter 380-480 V 50-60Hz 35 amps


Fuji EFL-7.5G9-4 3 phase RFI filter 380-480 V 50-60Hz 35 amps


Roxburgh MIF 330 3 phase RFI filter 460 V 50-60Hz 30 amps NIB


Eaton Cutler Hammer 9-2698 - 2 Contactor pair


Fuji BU III-220-4 


Allen Bradley 1336E-B015-AE-E?N 


SCHAFFNER FN351-16-29 


SCHAFFNER FN351-8-29


400A HRC fuse cassette with fuses


Fuji FVR E11S FVR2.2 E11S-4JE 


Crouse-Hinds Hazardous tanker 240 V Earth Detector Monitor EJBA 786 EGL Exd II


Crouse-Hinds Hazardous tanker 240V Earth Detector Monitor EJBA 783 EMD Exd II cl


Crouse-Hinds Hazardous tanker 240V Earth Detector Monitor EJBA 783 EMD Exd II


Crouse-Hinds Hazardous tanker loading Earth Detector Monitor EJBA 783 EMD Exd II


Govan Flame Proof Start Stop Box With Potentiomoter Seal


Electrical switchgear cabinet LARGE STAINLESS STEEL 2300 x 300 x 330


Electrical Junction Tee Off Box


High Current B&R steel IP rated box busbar insulators


Crouse Hinds Flameproof New in box socket Exd 16A 240V


Crouse Hinds Flameproof junction box New in box Exd


New Sarel 53024 electrical switch board enclosures 50 x 40 x 25cm


Flameproof junction box housing with glass window


SQUARE D 9012 GCW1 Series B Industrial Pressure Switch 20-1000 psig 1.4-59 bar


SQUARE D 9012 ADW-3 Industrial Pressure Switch931-6890 KPa Diff'l 242-930 KPa


SQUARE D 9012 GCW-2 Industrial Pressure Switch 90-2900 psig, 6-20 MPa


SQUARE D 9012 GAW-1 Industrial Pressure Switch 2-10 psig, 01-69 bar


SQUARE D 9012 ACW-3 Ser B Industrial Pressure Switch 1-10 PSI Diff'l 0.5-5 PSI


SQUARE D 9012 ACW-7 Ser A Ind. Pressure Switch 150-1000 PSI Diff'l 85-145 PSI


SQUARE D 9012 ACW-3 Industrial Pressure Switch 31-6890 kPa Diff'l 242-930 kPa


Motorized 3~ slipping cable reel 50m x 2.5mm 18 core Heavy Duty Trailing Cable


Sprecher+Schuh CA 1-60 Contactor 180A


Motorized 3~ slip ring cable reel 50m 4 x 16mm Heavy Duty Trailing Cable


Emotron FDU40-026-54CE Ser 2 Three phase drive / frequency inverter 11kW AS NEW