BentlyNevada330930-065-01-05高速计数器正在计数的时候，执行任何功能的hsc指令，会丢失脉冲。除非你的控制对这一个脉冲可以忽略。例如一个通常使用手法：长度计算到设定值的时候复位一下然后继续计数。这样的话在复位一瞬间，会丢失一个脉冲。当然这样的脉冲多一个和少一个一点都不影响实际使用，但是如果涉及到同步控制位置控制，伺服的接收的脉冲数和PLC高计计算的脉冲数不一致的时候，你的头就大了。例如：编码器同时输出给一个伺服和一个高速计数器。高速计数器按照脉冲数周期性的复位，而伺服就直接收脉冲进行***。你心想，伺服就一直跟着编码器转就是了。而高计就每两万个脉冲从零开始计，正好配合上机械的某些动作而做出输出。可是这样做的话plc的输出就会一个脉冲一个脉冲的渐渐丢失。plc的动作逐渐落后于伺服了。然后你就把所有现象归咎于干扰脉冲丢失，耗费了大量人力物力，***终没有结果。***可怕的是当时情况也真的是发生了干扰现象。那么这一个脉冲的事情将永远石沉。然后你客户反映了问题，你就写了很多补偿的程序……一下又补偿不足，一下又过补偿一下又换零位光电，又激光对准。然后……总之数字电路数控程序在对与错之间没有任何状态。数据准确了就是对的，数据出错了就是错的。注意注意！***artplc也一样一般新手上来都会先清0的。还有一个群众基础很广的是输入消抖用***。这些一般情况下都不是问题，只是不是***佳的方案。本贴点出了在特定情况下微小的误差积累也不容忽视。Sieb&MeyerCSS91处理器模块Sieb&Meyer7903425-44-25C伺服控制器DENGENSHAPMU-0531-3#22738逆变器板DENGENSHAPMU-0531-1#23132逆变器板DENGENSHAPCC-0275电路板DENGENSHAPF-0482电路板DENGENSHAPHF-0329-1S电路板DENGENSHAPT-0328-1电路板DENGENSHAPFI-0533-3-SK3ADENGENSHADGN-2DGN2电路板MURRELEKTRONIKPOWERSUPPLYMCS40MURRELEKTRONIKPOWERSUPPLYMCS20MazakSystemBoardD65UB002740ShimadzuTMP2001-LME真空涡轮泵ShimadzuTMP-2203LM真空涡轮泵ShimadzuTMP-3403LMTC3620-00486真空涡轮泵ShimadzuTMP-3203LMC-K1真空涡轮泵ShimadzuTMP-3203LMEC-K1真空涡轮泵ShimadzuTMP-3203LMC-A13620-00145真空涡轮泵ShimadzuTMP2003LM-C涡轮泵ShimadzuTMP-3403LMC3620-00454ShimadzuShimadzuTMP-3403LMTC真空涡轮泵ShimadzuTMP-3403LMC真空涡轮泵ShimadzuTMP-3203LMC-K1真空涡轮泵ShimadzuTMP-3203LMC-K1VG300真空涡轮泵ShimadzuTMP-3203LMEC-K1真空涡轮泵ShimadzuTMP-H3603LMC-A1ShimadzuEI-3203MD涡轮泵控制器ShimadzuTMP3403LMC(A2)涡轮分子泵ShimadzuTMP280-L真空涡轮泵ShimadzuEI-3203MDTMP-3203LMEC涡轮泵控制器ShImadzuEI-D1103M涡轮泵控制器ShimadzuTMC-3202LMC-K1真空涡轮泵ShimadzuEI-D3603M轮泵控制器ShimadzuTMP-3203LMC-A1涡轮泵ShimadzuEI-3203MD涡轮泵控制器ShimadzuEI-3203MD-A1涡轮泵控制器ShimadzuEI-3203MD涡轮泵控制器Shimadzu280-L真空涡轮泵ShimadzuTMP280-L涡轮泵ShimadzuTMP-303LM303-LMShimadzuEI-3203MD涡轮泵控制器ShimadzuEL-281涡轮泵电源Shimadzuboard501-72536Eassy501-72535CShimadzuboard501-69697Cassy501-69696DShimadzuboard501-69697Dassy501-69696DShimadzuboard501-72536Dassy501-72535BShimadzuboard501-71653Jassy501-71652HShimadzuboard501-71651Kassy501-71650JShimadzuboard501-71659Dassy501-71658CShimadzuboard501-79572JShimadzuCPUassy638-72430Shimadzuassy228-34148-93ShimadzuSBC8601board202-59845-05ShimadzuDSP-R206-17194ShimadzuSBC-8602A202-50235-84ShimadzuSBC-8602A202-50235ShimadzuRF-CPU-V20-EMC206-85313-91ShimadzuTMP-280涡轮分子泵ShimadzuEI-3203MD涡轮泵控制器ShimadzuLC-6ADShimadzuTMP-203M涡轮分子泵ShimadzuTMP-280-L涡轮分子泵Shimadzupart638-72274-01TOCAT4ShimadzuSCL-10A系统控制器ShimadzuCPUboard206-12679ShimadzuRF-CPUV02206-60505-05Shimadzuassy206-14943H206-14945HShimadzuTMP-2001-LM-EShimadzupart206-11281Shimadzupart206-12682Shimadzu638-72457Shimadzupart541-18591D541-18592EShimadzupart204-77157NEWShimadzuGFA-4BCPU206-16355Shimadzu541-18247E541-18248D6ES5420-4UA141166ES5430-4UA1416ES5441-4UA1376ES5441-4UA14746ES5470-4UB1346FM1726-3CA1020SAFT-123-PACReliance57C330Reliance57C331Reliance57C370Reliance57C373Reliance57C375Reliance57C376Reliance57***01Reliance57***05Reliance57***06Reliance57***07Reliance57***09Reliance57***10Reliance57***11Reliance57***17Reliance57***17AReliance57***21Reliance57***230BReliance57***235AReliance57***40Reliance57***40AReliance57400-1Reliance57402Reliance57406Reliance57407-4Reliance57***22BReliance57***04CReliance57***02Reliance57***16Reliance57422Reliance57***30Reliance57419Reliance57404BReliance57410Reliance57411Reliance57411-1Reliance57411-2Reliance57402DReliance57***10AReliance57***11Reliance57***09Reliance57C565Reliance57C651Reliance57C653Reliance45C1Reliance45C15CReliance45C1AReliance45C200AReliance45C301AReliance45C35Reliance45***0Reliance45***4Reliance45C60Reliance45C63Reliance45C66Reliance45C66AReliance45C69Reliance45C202AReliance45C203Reliance45C305Reliance45C381AReliance61C22AReliance61C326Reliance61C346Reliance61C515Reliance0-51486-17Reliance0-51668-1Reliance0-51811-1Reliance0-51811-3Reliance0-51814-1Reliance0-51818-2Reliance0-51820-1Reliance0-51829-2Reliance0-51831-1Reliance0-51831-2Reliance57400-1Reliance57402Reliance57***02Reliance57***04BReliance57***04CReliance57406Reliance57407-4Reliance57***09Reliance57410Reliance57***10AReliance57411-1Reliance57411-2Reliance57***11Reliance57***16Reliance57419Reliance57422Reliance57***22BReliance57***30Reliance45C202AReliance45C203Reliance45C305Reliance57***93Reliance57***10Reliance57***10BReliance57***35Reliance57552-4AReliance61C500Reliance61C599Reliance0-52876Reliance0-52875-1Reliance0-57300Reliance57403-EReliance57410-CReliance0-52808Reliance57400Reliance0-54392-2Reliance0-54390Reliance57412-EReliance57408-CReliance57401-DReliance54392-2Reliance57403-GRelianceES281CMBReliance57411-2EReliance57400-BReliance45C15AReliance57***11Reliance52876Reliance57300Reliance57405Reliance52875-1Reliance57392-2Reliance57401-DReliance57403-EReliance57408-CReliance57410-CReliance57411-2EReliance57***04B)