1336E-B025-AN-EN
1336E-B025-AN-EN
1336E-B025-AN-EN
计算机面向对象编程的优点也有重用性和易管理型,在PLC中也曾在,以Step7为例,需要讨论FC和FB的差异。观察数据类型,FB比FC只不过多一个 “STAT”类型,在使用上FB需要背景DB,FC不需要,但就这个差别导致FB拥有自己独立的数据储存空间,而FC的数据储存却必须借助公有变量(如中 间变量M或者共享DB),有这样一种准则,程序块的独立性越强,其重用性也越好,产生数据访问冲突的可能性也更少,则更易于管理。有些公司生产的PLC, 其程序语言没有类似FB 的这种特性,这时可以采用类似“FC+共享DB”的替代方案解决,但它的独立性已经大大降低。
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APPLIED MATERIALS (AMAT) 150MM INNER RING 0200-09315
Applied Materials AMAT C-Seal, 3700-02994
Applied Materials AMAT Kalrez O-Ring, 3700-04663
APPLIED MATERIALS (AMAT) VME2 CARD CAGE P/N 0190-01623
Applied Materials AMAT Ground Fault Relay, 0680-01738
Applied Materials AMAT V-TEX Dorr Seal, 3700-03912
Applied Materials AMAT Kalrez O-Ring, 3700-02214
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AMAT Applied Materials PVD 6" Process Kit 0020-28064
APPLIED MATERIALS (AMAT) BLOCKER PLATE TI-XZ 0021-39069
AMAT Applied Materials RF Cable 0620-00499 new
APPLIED MATERIALS (AMAT) EXHAUST INSERT P/N 0200-89006
Applied Materials, Dual Gas Leak Detector 0090-00811
AMAT Applied Materials 0010-00019 Analog Power Supply
APPLIED MATERIALS 1140-90090 ,ARTESYN N1204-1 POWER SUP
Applied Materials AMAT Pressure Transducer, 0015-02123
Applied Materials AMAT Chemraz O-Ring, 3700-02031
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Applied Materials AMAT KALREZ SAHARA O-RING, 3700-03760
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Applied Materials AMAT Nor-Cal Valve Assy, 3870-00724
APPLIED MATERIALS (AMAT) 8" COVER RING P/N 0200-00673
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Applied Materials Power Supply 9090-00203ITL
MONITOR BASE APPLIED MATERIALS 0010-09103 - REFURBISHED