SS822 3BSC610042R1
ABBSS8223BSC610042R1特殊辅助继电器辅助继电器中M8000~M8255共256点为特殊辅助继电器,它们用来表示PLC的某些状态,提供时钟脉冲和标志(如进位、借位标志),设定PLC的运行方式,或用于步进顺控、禁止中断、设定计数器是加计数器或是减计数器等。特殊辅助继电器可分为以下两类:(1)触点利用型由PLC的系统程序来驱动特殊辅助继电器的线圈,在用户程序中直接使用其触点,但是不能出现它们的线圈,例如:M8000(运行监视):当PLC执行用户程序时M8000为ON,停止执行时M8000为OFF,如图所示。M8002(初始化脉冲):M8002仅在M8000由OFF变为ON状态时的一个扫描周期内为ON,如图6.10所示,可以用M8002的常开触点来使有断电保护功能的元件复位或给它们置初始值。图时序图M8011~M8014分别是10ms、100ms、1s和1min时钟脉冲,见图6.10。M8005(锂电池电压降低时用):电池电压下降至规定值时变为ON,可以用它的触点驱动输出继电器和外部指示灯,从而提醒工作人员更换锂电池。(2)线圈驱动型由用户程序驱动其线圈,从而使PLC执行特定的操作,因此用户并不使用它们的触点。例如:M8030的线圈“通电”后,“电池电压降低”发光二极管熄灭;M8033的线圈“通电”后,PLC进入STOP状态后,所有输出继电器的状态保持不变;M8034的线圈“通电”后,禁止所有的输出;M8039的线圈“通电”后,PLC以D8039中指定的扫描时间工作。4、状态继电器(S)状态继电器是用于编制顺序控制程序的一种编程元件(状态标志),常与STL指令(步进梯形指令)配合使用,主要用于编程过程中顺控状态的描述和初始化。它与STL指令组合使用,容易编制出易懂的顺控程序。当不对状态继电器使用步进梯形指令时,可以把它们当作普通辅助继电器(M)使用,其地址码按十进制编码。FX2N系列PLC的状态继电器通常分为以下几类:初始化用:S0~S9(10点);返回原点状态器:S10~S19(10点);通用型:S20~S499(480点);断电保持型:S500~S899(400点);报警型:S900~S999(100点)。5、定时器(T)与计数器(C)FX1N、FX2N系列PLC内部可提供256个定时器和256个计数器,定时器的编号为T000~T255,计数器的编号为C000~C255。定时器和计数器不能直接产生输出,必须通过输出继电器才能输出。1.定时器(T)定时器在PLC中的作用相当于一个时间继电器,PLC内的定时器是根据时钟脉冲的累积形式,将PLC内的1ms、10ms、100ms等时钟脉冲进行加法计数,当所计时间达到规定的设定值时,其输出触点动作,定时范围为0.001~3276.7s。定时器可以用用户程序存储器内的常数K作为设定值,也可以用数据寄存器(D)的内容作为设定值。定时器的元件号及其设定值如下:(1)100ms定时器T0~T199,共200点,计时范围:0.1~3276.7秒;(2)10ms定时器T200~T245,共46点,计时范围:0.01~327.67秒;(3)1ms积算定时器T246~T249,共4点,计时范围:0.001~32.767秒;(4)100ms积算定时器T250~T255,共6点,计时范围:0.1~3276.7秒。定时器的定时值=设定值×时钟,定时器指令符号和时序图如下图所示。在上图中,当定时器线圈T0的驱动输入X0接通时,T0的当前值计数器对100ms的时钟脉冲每隔100ms加1,当该值与设定值K100相等时,定时器的输出触点动作,即输出触点是在驱动线圈后的10秒(100×100ms=10s)时才动作,T0的常开触点闭合后,Y0就有输出。当驱动输入X0断开或发生停电时,定时器就复位,输出触点也复位。在FX1N、FX2N系列PLC中,积算定时器一共有10点,1ms积算定时器有4点,从T246~T249;100ms积算定时器有6点,从T250~T255。积算定时器的指令形式和时序图如下图所示。该图中,定时器线圈T250的驱动输入X0接通时,T250的当前值计数器开始对100ms的时钟脉冲进行累积计数,当该值与设定值K100相等时,定时器的输出触点动作。在计数过程中,即使输入X0断电,它也会把当前值(如图中的6s)保持下来,当X0通电时,再继续累积4s,当累积时间为10s(100×100ms=10s)时触点动作,Y0闭合。因为积算定时器的线圈断电时不会复位,所以需要用复位指令RST使其强制复位,如下图,当复位输入X1接通时,定时器就复位,输出触点也复位Simatic6ES5948-3UR12Siemens1PL6228-7AF20-0​AA3Simatic6ES5948-3UR23Simatic6ES5948-3UR12Siemens6ES7410-5HX08-0AB0Simatic6ES5948-3UR11Simatic6ES5948-3UA23Simatic6ES5948-3UR11AllenBradley1336S-B075-AE-D​E4Simatic6ES7416-2XL00-0AB0SIMATIC6ES5188-3UA32Simatic6ES5948-3UA21Simatic6ES7416-3XL00-0AB0Simatic6ES5948-3UA12Simatic6ES5944-7UB21B&RAPC810B&RHCMAESTRO-0Simatic6ES5944-7UB21SEWMPB51A011-503-0​0LOWARASV812N55T/PSimatic6ES7416-3XL00-0AB0Siemens1PH6161-4CF06-ZSimatic6ES5581-4LA11Simatic6ES5948-3UR21KSB48879073Siemens1PH7105-2RF03-1​KA9ABB83SR09D-EABB83SR05G-EABB88TK02A-EABB88VP02B-EABB81EA11D-ERITTALSK3332.140Simatic6ES5955-3LC42ABB88FN02B-EFanucA06B-6087-H137RexrothMKD112C-024-GP0​-BNMitsubishiQ2ACPUSICKS30B-2011CAREXROTHMDD112B-N-020-N​2L-130PA0REXROTHMDD115B-N-020-N​2L-130GA0AllenBradley1771-IFMSimatic6ES5948-3UA13Simatic6ES5463-4UA13ABBGJR2374800R0210Simatic6AV1242-0DA02-0​AA0FanucA06B-6110-H006Gericke28.92-00009DATALOGICDS6300-100010Siemens1PH7103-7EF22-0​BK3-ZABBGRJ2368900R2340ABBGJR2342500R1000ABBGKWE853000R0200SiemensS42024-A1744-A2BBCGJR2312200R1000ABBGJR2368900R2200BBCGJR2342800R1500BBCGKWE855900Siemens1PH7184-7HF03-0​AC9-ZABBGKWE850100R0100ABBGJR2370800R0100Siemens6AV3520-1EL00ABBGJR2326500R1011FanucA06B-6114-H209Simatic6ES5944-7UA22Simatic6GK1143-0TB01Simatic6ES7414-2XG04-0AB0Simatic6ES5095-8FB01Simatic6FM1486-3BC00Simatic6ES5185-3UA12FanucA06B-6114-H105RITTALSK3305140Gardner2BH1410-7HH36-ZSimatic6ES5955-3NC42Simatic6ES5924-3SA12Siemens6DP1280-8AABBCGJR2342600R1000Simatic6ES5578-0AA11Simatic6ES5955-3LF42Simatic6ES7621-1AD01-0AE3Siemens6EW1880-1AASimatic6ES5252-3AA13Pepperl&FuchsIVI-KHD2-4HB6BEGSAXP6P7VSimatic6ES7414-2XK05-0AB0CCSLDL-TP-211X200FPZE24787-2011RexrothMKD090B-047-GP0​-KNBEGSAXP6P7VSimatic6ES5095-8FA01BeckhoffCP6802-0001-001​0Simatic9AH1001-1SS00Siemens1PH7103-7EF22-0​BK3-ZABBGJR2329100R0100ABBGJR2330200R0010Simatic6ES5463-4UB12Simatic6FM1721-3AA20Siemens6DP1210-8BCSimatic6ES5324-3UR11Simatic6ES5581-0ED12Simatic6ES5955-3LC42Simatic6ES5470-7LC13RITTALSK3298500ABBGJR2392500R1210Simatic6ES5955-3NF41Simatic6ES7412-2XG04-0AB0SickCS3-P3632Simatic6ES7414-2XG03-0AB0SickCLV431-6010Simatic6ES5955-3NA11Simatic6ES5955-3NF11Siemens6ES5921-3WA13LenzeEVS9323-EKV004Simodrive6SN1118-0AA11-0​AA1Simatic6ES5581-2LA11Simatic6ES5901-7FA11Gardner2BH1640-7GH47Simatic6ES5470-7LC13Simatic6GK7443-1EX41-0XE0LenzeEVS9322-EKV004Simatic6ES5902-3SA12Simatic6ES5095-8MA05SEWMAS51A005-503-5​0Simatic6ES5308-3UC21ParkerPVS32EH140C2WerieSKG294-2AllenBradley1771-QRCPepperl+FuchsMVH2000-F15Simatic6ES5955-3LF41SickMUX400-0000Siemens1LA6163-4AA60-ZINDRAMATDDS02.1-W100-DS​01-02-FWSiemens1FK7103-5AF71-1​EH2Simatic6ES5243-1AB12SimaticS6ES5955-7NC11Siemens6ES5777-1BC01Simatic6ES5000-1AA41Simatic6AV3617-1JC20-0AX1ELAU100-40-050-P0-4​5-S1-B0ABBGJR2393400R1210Simatic6ES5240-1AA21OSimatic6ES5470-4UC13Simatic6FM1726-3BA00Simatic6ES5470-4UA13Simatic6ES5516-3UA11BBCGKWE850100R0100ABBGJR2349000R1000Simatic6ES7972-0BA11-0XA0Simatic6ES5513-3LB11TelemecaniqueATV452U55TelemecaniqueATV66D16N4RITTALSK3305140BBCGJR2349000R1000ABBGJR2326500R1011BBCGJR2312300R1000S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