KJ2231X1-BA1辅助继电器ETA-直接模块 

I/O总线，它把多种I/O信号送到控制器，由控制器读取I/O信号。这称为I/O总线。I/O板相互之间并不交换数据。I/O总线的速率是不高的。从几十K到几兆不等。这与计算机技术的发展情况有关。80年代初是20K，80年代中期是40K、80年代末期是80K，90年代是几兆。为了快速，**好是并行总线。采用并行总线，其I/O模件必需与控制器模件相邻。采用串行总线的情况下，I/O板和控制器之间的距离也要比较近才行。**好把控制器模件和I/O模件装在一个机柜内或相邻的机柜内。远程I/O应该采用现场总线。如CAN、LONWORKS、HART总线等。现场总线是90年代初发展起来的。在I/O板中从硬件来说应该有能接收现场总线来的信号的输入、输出板。从软件来说在控制器中应该有读取和写到现场总线信号的功能块。在DCS系统中，远程

公司聯络人：郑娟萍(销售工程师)

Tel：0592-5173279

Fax：0592-5165561

QQ：2773734088

　第二级网络是控制器之间的通讯，把完成不同任务的三种控制器连在一条总线上，称为控制总线。在控制总线上的不同控制器的数量不受限制。在这一条总线上除三种不同的控制器模件以外，还有DCS网络的接口模件。在控制总线上，控制器之间可以调用数据。使得模拟量和开关量之间的结合很好。控制总线不是每一种DCS系统都有的，可以把各种控制器分别连到DCS网络上。控制器之间的数据调用要通过DCS网络。控制总线的速率情况与I/O总线的情况相类似。通常是几十K到几兆之间。当CPU和存储器的能力比较强时，把开关量的逻辑运算和模拟量的采集功能都在一个控制器中完成。在控制总线上就只有一种形式的控制器。其协议采用载波监听，广播发送，类似以太网的协议。

Mitsubishi AJ71AP21?PLC IS NEW 30 DAYWARRANTY

Dynamatic 15-162-167 RELAY UNIT IS NEW?30 DAY WARRANTY

Dynamatic 15-54-13?15-000054-0108 PC BOARD IS REPAIIRED 30?DAY WARRANTY

SUNX ID-PCS1 SYSTEM CONTROLLER IS REPAIIRED 30 DAY WARRANTY

YASKAWA JAMSC-B2914?B2914 BESTACT RELAY IS NEW 30 DAY WARRANTY

VAL-TECH 75630410 MODEL KL CURRENT CONTROL MODULE IS REPAIRED 30 DAY WARRANTY

G E 44A399750-G01 PSI06 PC BOARD IS REPAIRED & TESTED 30 DAY?WARRANTY

G E 44A399751-G01 PS112 PC BOARD IS REPAIRED & TESTED 30 DAY?WARRANTY

SIEMENA TI305-045 5100 BASE UNIT IS REPAIRED & TESTED, 30 DAY WARRANTY

GEC GEM80 8333-4001?PROGRAM COMMS MODULE?NEW & TESTED, 30 DAY WARRANTY

GEC GEM80 8113 DC OUTPUT 9-66V 1.5A MODULE NEW & TESTED, 30?DAY WARRANTY

GEC GEM80 8138-4008?TTL/CMOS 4-18 VDC MODULE NEW & TESTED, 30 DAY WARRANTY

WESTRONICS CB100356-01 MUX PC BOARD NEW?& TESTED, 30 DAY WARRANTY

MILUK 6098 A-194066?CONTROL PC BOARD NEW?& TESTED, 30 DAY WARRANTY

CUBE EE188E4867A EBG?CONTROL PC BOARD IS?REPAIRED & TESTED,?30 DAY WARRANTY

CINCINNATI 3-531-4125A CONTROL PC BOARD?IS REPAIRED & TESTED, 30 DAY WARRANTY

CINCINNATI 3-533-0625G CONTROL PC BOARD?IS REPAIRED & TESTED, 30 DAY WARRANTY

UNICO 317879.014 CONTROL PC BOARD IS REPAIRED & TESTED, 30 DAY WARRANTY

FANUC A250-0719-X001?16TT FACE PLATE 30DAY WARRANTY

FANUC A06B-03146-B675 AC SERVO MOTOR,HAS?BEEN REPAIRED & TESTED 30 DAY WARRANTY

FANUC A06B-0317-B073?AC SERVO MOTOR,HAS?BEEN REPAIRED & TESTED 30 DAY WARRANTY

FANUC A06B-0502-B501?AC SERVO MOTOR,HAS?BEEN REPAIRED & TESTED 30 DAY WARRANTY

FANUC A06B-0502-B074?AC SERVO MOTOR,HAS?BEEN REPAIRED & TESTED 30 DAY WARRANTY

FANUC A06B-0314-B001?AC SERVO MOTOR,HAS?BEEN REPAIRED & TESTED 30 DAY WARRANTY

FANUC A20B-2901-0360?01A PC BOARD REPAIRED & TESTED / 30 DAY?WARRANTY

FANUC A20B-1003-0864?01A SERVO PC BOARD

FANUC A20B-2900-0350?03A PC BOARD NEW &?TESTED / 30 DAY WARRANTY

FANUC A20B-2902-0275?03B PC BOARD NEW &?TESTED / 30 DAY WARRANTY

FANUC A20B-8001-0121?04B PC BOARD REPAIRED & TESTED / 30 DAY?WARRANTY

FANUC A20B-1000-0913?04A PC BOARD REPAIRED & TESTED / 30 DAY?WARRANTY

FANUC A20B-2900-0721?02A PC BOARD REPAIRED & TESTED / 30 DAY?WARRANTY

FANUC A20B-2900-0780?03A PC BOARD REPAIRED & TESTED / 30 DAY?WARRANTY

FANUC A20B-2900-0641?01A PC BOARD REPAIRED & TESTED / 30 DAY WARRANTY

FANUC A20B-2900-0880?03A PC BOARD REPAIRED & TESTED / 30 DAY?WARRANTY

FANUC A20B-2900-0790?02A PC BOARD REPAIRED & TESTED / 30 DAY?WARRANTY

FANUC A20B-2900-0691?02A PC BOARD REPAIRED & TESTED / 30 DAY?WARRANTY

FANUC A20B-2900-0651?01A PC BOARD REPAIRED & TESTED / 30 DAY?WARRANTY

FANUC A20B-1000-0390?02A KEY PAD PC BOARD REPAIRED & TESTED?/ 30 DAY WARRANTY

FANUC A20B-1000-0500?01A CRT PC BOARD REPAIRED & TESTED / 30?DAY WARRANTY

FANUC A20B-1003-0760?06A MASTER PC BOARD?REPAIRED & TESTED /?30 DAY WARRANTY

FANUC A20B-2900-2900-0930 PC BOARD REPAIRED & TESTED 30 DAY?WARRANTY

FANUC A20B-2900-0293-06B PC BOARD REPAIRED & TESTED 30 DAY?WARRANTY

FANUC A20B-2900-0107?03A PC BOARD REPAIRED & TESTED 30 DAY?WARRANTY

FANUC A20B-2900-0142?06A PC BOARD REPAIRED & TESTED 30 DAY WARRANTY

FANUC A20B-1001-0050?09 COMPLETE TAPE READER REPAIRED & TESTED 30 DAY WARRANTY

FANUC A20B-1004-0590?CHASSIS WITH FANS &?PCB REPAIRED & TESTED 30 DAY WARRANTY

FANUC A20B-2902-0198?01A PC BOARD REPAIRED & TESTED 30 DAY?WARRANTY

FANUC A20B-1001-0711?02A PC BOARD REPAIRED & TESTED 30 DAY?WARRANTY

General Electric 193X529BB-G01MAIN CONTROL CARD REPAIRED 30?DAY WARRANTY

CONAIR CO. 107-262-01-01 MODULE IS NEW WITH A 30 DAY WARRANTY

CONAIR CO. 23-24-944?PROBE IS NEW WITH A?30 DAY WARRANTY

General Electric 44A399771-G05 RM42A REPAIRED 30 DAY WARRANTY

CONAIR CO. 107-214-01 I/O OPTION PC BOARD IS NEW WITH A 30 DAY WARRANTY

CONAIR CO. 108-631 UNLOAD PC BOARD IS REPAIRED WITH A 30 DAY?WARRANTY

General Electric 44A398722-G02 MAA02 REPAIRED 30 DAY WARRANTY

BARBER COLEMAN AT-580 TEMP. CONTROLLER/?ALARM IS REPAIRED WITH A 30 DAY WARRANTY

EMERSON INDUSTRAIL MD200 PC BOARD IS REPAIRED WITH A 30 DAY WARRANTY

CONAIR CO. 23-24-942?PROBE IS NEW WITH A?30 DAY WARRANTY

General Electric 44A398716-G01 TRAD2 REPAIRED 30 DAY WARRANTY

Generic Miscellaneous Boards 126-706-02?REV V TAPE REA REPAIRED 30 DAY WARRANTY

MICRON 36-301-079-0109 POSITION TRANSDUCER REPAIRED 30 DAY WARRANTY

ASTEC 73-385-011 POWER SUPPLY REPAIRED 30 DAY WARRANTY

ME CO 170 REV B6 PC?BOARD REPAIRED 30 DAY WARRANTY

ME CO 170 REV B PC?BOARD REPAIRED 30 DAY WARRANTY

RELIANCE ELECTRIC 0-51865-15 CLDR PC BOARD IS REPAIRED WITH?A 30 DAY WARRANTY

Siemens 6RB2000-0NF01 REGULATOR BOARD IS REPAIRED WITH A 30?DAY WARRANTY

HORYU ENGINEERING 409N0006 RTB1 POWER UNIT IS NEW 30 DAY WARRANTY

MEDAR 4942-8M6 494-8A CONTROL BOARD IS?REPAIRED WITH A 30 DAY WARRANTY

Indramat 109-0743-3B04-03 NT19 PC BOARDIS REPAIRED WITH A?30 DAY WARRANTY

Indramat 109-0685-3B04-00 SM10 PC BOARD?IS REPAIRED WITH A 30 DAY WARRANTY

Indramat 109-0700-4B06-02 SM13 PC BOARDIS REPAIRED WITH A?30 DAY WARRANTY

Indramat 109-0743-4B01-00 NT17 PC BOARD?IS REPAIRED WITH A 30 DAY WARRANTY

UNION CARBIDE D-2209614 REV A PC BOARD IS REPAIRED WITH A 30?DAY WARRANTY

HORYU ENGINEERING CP-ES-E REV 9 SPINDLE?DRIVE IS REPAIRED WITH A 30 DAY WARRANTY

Indramat 109-0685-4B06-02 109-0685-4A06-02 RC17 IS REPAIRED?30 DAY WARRANTY

Indramat 109-0700-4B07-00 RC26 PC BOARD?IS REPAIRED 30 DAY WARRANTY

Fuji Electric CS5F-40 SUPER RAPID FUSE?IS REPAIRED 30 DAY WARRANTY

RELIANCE ELECTRIC 0-51893-2 FIELD CONTROLLER IS REPAIRED 30?DAY WARRANTY

YASKAWA SGDB-10ADG SERVO PACK IS REPAIRED 30 DAY WARRANTY

Siemens 6ES5955-3LF41 POWER SUPPLY MODULE IS REPAIRED 30 DAY?WARRANTY

NUMA-LOGIC NL-352L REED RELAY INTERFACE?IS REPAIRED 30 DAY?WARRANTY

DECKEL 44206-860.01?NSV55 PC BOARD IS REPAIRED 30 DAY WARRANTY

Gettys Drives 11-0092-12 INTERFACE CARD?IS REPAIRED 30 DAY WARRANTY

HAROWE SERVO 18DT-205-A-4 D.C. TACHOMETER IS REPAIRED WITH?A 30 DAY WARRANTY

Allen Bradley 7300-UIG ANALOG INPUT MODULE IS REPAIRED 30 DAY WARRANTY

Indramat 109-0700-4B01-01 NT16 PC BOARD?IS REPAIRED 30 DAY WARRANTY

L-TEC D2209331 REV F?PC BOARD IS REPAIRED 30 DAY WARRANTY

OKUMA E4809-032-496-C SERVO PROCESSOR TIMING CARD IS REPAIRED 30 DAY WARRANTY

CINCINNATI MILACRON?4-531-4007A00E SERVO?PC BOARD IS REPAIRED 30 DAY WARRANTY

OKUMA E4809-032-496-F SERVO PROCESSOR TIMING CARD IS REPAIRED 30 DAY WARRANTY

OKUMA 5000 II XPS-483A CRPB-II CRPB-II?PC BOARD IS REPAIRED?30 DAY WARRANTY

OKUMA E4809-436-003-A SVP BOARD IS REPAIRED WITH A 30 DAY WARRANTY

OKUMA E4809-770-032-3 RELAY PC BOARD IS REPAIRED WITH A 30?DAY WARRANTY

Siemens C 67117-A5206-A308 2H DIODE STACK IS REPAIRED 30 DAY WARRANTY

Indramat 109-0685-3B01-01 RSK2 PC BOARDIS REPAIRED 30 DAY?WARRANTY

OKUMA E4809-045-109-D SVP PC BOARD IS REPAIRED WITH A 30 DAY WARRANTY