通讯卡 VI702

执行时间短可加快PLC对一般输入信号的响应速度。从讨论PLC的工作原理知，从对PLC加入输入信号，到PLC产生输出，理想的情况也要延迟一个PLC运行程序的周期。因为PLC监测到输入信号，经运行程序后产生的输出，才是对输入信号的响应。不理想时，还要多延长一个周期。当输入信号送入PLC时，PLC的输入刷新正好结束，就是这种情况。这时，要多等待一个周期，PLC的输入映射区才能接受到这个新的输入信号。对一般的输入信号，这个延迟虽可以接受，但对急需响应的输入信号，就不能接受了。对急需处理的输人信号延迟多长时间PLC能予以响应，要另作要求。

LITTELFUSE CLASS RK1 TIME DELAY FUSE   LLSRK 10 100889

FERRAZ SHAWMUT FUSE   FD20GD150V8 100976

BUSSMANN FWP-20A14Fa - 700V 20A FUSE LOTS OF 3

ALLEN BRADLEY FUSE BLOCK 30AMPS-600VOLTS MAX. 40023-415-04

BUSSMANN FUSETRON CLASS RK5 TIME-DELAY FUSE LOT OF 4 FRS-R-7-1/2

GOULD SHAWMUT A13X1 TYPE 2 130 VOLTS 1 AMPS AMP-TRAP FUSES LOT OF 10

GOULD SHAWMUT TRS31/2R 600V CLASS RK5 TYPE D FUSE LOTS OF 6

BUSSMANN NO. 2621-R

BUSSMANN LOW-PEAK LPJ-400SP CLASS J TYPE D 400A 600V FUSE

FUSETRON FNM 1 250V 35A LOTS OF 12

LITTELFUSE 5-6/10A POWR GUARD FUSE FLSR-5-6/10 LOT OF 6

BUSSMANN BUSS CUBE TCF100 600VAC 100 AMPS

COOPER BUSSMANN 250VAC 10A ONE-TIME FUSES NON-10  LOT OF 10

OLEGRAND  500V 160A CATRIDGE FUSE 165 55  LOTS OF 3

BUSSMANN FUSETRON FNM-3-1/2 250V FUSES  - 1 BOX OF 10

LITTELFUSE SLO-BLO 0313.250VXP  -  ( EACH CONTAINS 5 FUSES)

ALLEN BRADLEY 3 POLE FUSE HOLDER F-15232

BUSS FUSES GLD 2 125V  -  ( EACH CONTAINS 5 FUSES)

LITTELFUSE 4A 250VAC SLO BLO FUSE FLNR-4  BOX OF 10

BUSSMANN 350A LOW PEAK DUAL ELEMENT TIME DELAY FUSE LPJ-350SP

BUSSMANN FUSETRON FNA-5 250V OR LESS 5 AMP FUSE  - LOT OF 6

BUSSMANN FUSETRON 40A 600VAC FUSE  FRS-R-40 101908

FERRAZ SHAWMUT FUSE 450A 600V DUAL ELEMENT TIME DELAY A6D45OR

BUSSMANN LOW-PEAK LPS-RK-1-1/8SP CLASS RK-1 TYPE D 1 1/8A 600V FUSE LOT OF 6

BUSSMANN LP-CC-20 LOW-PEAK 600V  - 1 BOX OF 10

GOULD SHAWMUT AMP-TRAP 2000  A6D250R 600V

BUSSMANN DENMARK 170 N 2107 16A 600V FUSE LOT OF 4

BUSS 600 VAC 30 AMP FUSE BLOCK  R60030-2COR

BUSSMANN FUSETRON 600V 4A FUSE  FRS-R-4

LOW-PEAK DUAL-ELEMENT TIME DELAY  LPS-RK-5SP

GOULD SHAWMUT TRI-ONICS 1-4/10A 600VAC FUSE  TRS1-4/10R

BUSS FUSE DMM-44/100 1000VAC/DC DIGITAL MULTI-METER FUSE  - LOT OF 14

BUSS-FUSETRON FRN-R-8 CLASS RK5 TYPE D 250V FUSE -1 BOX OF 10

GOULD SHAWMUT AMP-TRAP TYPE-4 150A 600V FUSE  A6Y150 103960

GOULD TRI-ONIC TYPE D TIME DELAY FUSE   TRSR 3-1/2

SHAWMUT AMP-TRAP A25X300 TYPE 4 250V 300A FUSES

BUSSMANN 600V 3A SUPER-LAG REAL FUSE LINKS LKS 3  LOT OF 7

ECON  ECS 100 600V 100AMP CLASS RK5 FUSE LOTS OF 3

LITTELFUSE FLSR 70 CLASS RK5 70A 600V FUSE

BUSSMANN TRON 7A 600V RECTIFIER FUSE KAC 7  BOX OF 10

BUSSMAN FUSE -  - 25 IN BOX  25-1 AMP TYPE M  105180

BUSSMANN 125A LOW PEAK FUSE LPN-RK-125SP