为了处理急需呼应的输入信号，PLC有各种办法。不一样的PLC办法也不彻底一样，行进呼应速度的效果也不一样。通常的作法是选用输入中止，然后再输出即时改写，即中止程序运转后，有关的输出点当即改写，而不比及全部程序运转完毕后再改写。
这个效果可从两个方面来衡量：一是能否对几个输入信号作迅速呼应；二是迅速呼应的速度有多快。大都PLC都可对一个或多个输入点作迅速呼应，迅速呼应时刻仅几个毫秒。功用高的、大型的PLC呼应点数更多。
作业速度联络到PLC对输入信号的呼应速度，是PLC对体系操控是不是及时的条件。操控不及时，就不行能精确与牢靠，特别是对一些需作迅速呼应的体系。这即是把作业速度作为PLC榜首方针的因素。

KEBA AR-181
KEBA CU312/E
KEBA CU313
KEBA CU313
KEBA CU313A
KEBA DI325
KEBA DI325
KEBA DI325
KEBA DO321
KEBA DO321
KEBA DO321
KEBA DO321/B
KEBA EC100S
KEBA PS244
KEBA SI232
KEBA TT 081  02203-7614
KENSINGTON WFH4C
KEPCO 4882-27
KEPCO BOP20-20M
KEYENCE ML-P2
KIDDE FENWAL 12-E27121-020-05
KNIEL CP15.6311-052-02
KOGANEI CS4HB
KOKUSAI KOMS-A2
KOLLMORGEN BJRL-20012-110001
KOLLMORGEN CB06251
KOLLMORGEN DIGIFAS7201
KOLLMORGEN PRD-P320260Z-C2
KOYO D0-06DD1-D
KUKA 00-113-406
KUKA 00-130-547
KUKA 00-132-349
KUKA 1FK6081-6AF71-1ZZ9-Z
KUKA DSE-IBS 3.02
KUKA DSE-IBS-C33
KUKA KCP2
KUKA KCP2
KUKA KPS-600/20-ESC
KUKA KPS-600/20-ESC
KUKA KPS-600/20-ESC
KUKA KPS-600/20-REL
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KUKA KSD1-08
KUKA KSD1-08
KUKA KSD1-16
KUKA KSD1-16
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KUKA KSD1-32
KUKA KSD1-48
KUKA KSD1-48
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KUKA MFC2
KUKA MFC2
KUKA RDW2
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LAMBDA HWS1500-24
LANO M2 300/1100C-V
LAUER PCS-10TVD-000
LED E14 3W灯
LED E14 3W灯
LEM 1000-S/SP7
LENRZ L5311
LENZE ECPE84-0
LENZE EVF8212-E
LEROY SOMER STV2313
LEYBELOD TURBOVAC 361
LEYBOLD 850-400-G1
LEYBOLD CM31
LEYBOLD CM330
LEYBOLD PR25
LEYBOLD SV40BI
LEYBOLD TR211
LOAD CONTROLS PH-3A
LOAD CONTROLS INCORPORATED PH-3A
LUDLUM 2401-P
LUST VF1410LHFS41
MAGNETEK HP4-1D-T-S1139
MAGNETEK HP4-1D-T-S1139
MAGNETEK MG2-1C-4FEE
MATROX CORONA2 7030-02
MCS SA1000
MCS SA1000 SA-1000-E
MECS UTX1010
MERLIN GERIN 29329
MERLIN GERIN 32570
MERLIN GERIN MX+0F 26948
METASYS NU-NCM350-8
METRO MPS-4007
METSO AUTOMATION IOP320
MICRO INNOVATION GF1-10TVD-102
MICRO PANEL 725-1016-01 FCA016M-13C-02
MILLIPORE CMHT-11S02
MILLIPORE MDVX-018S01
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MITRA PE1937/23BU
MITSUBISHI BN624A960H03B
MITSUBISHI BN624A96IG52A
MITSUBISHI FCUA-DX110
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MITSUBISHI ST1X4-DE1
MKS 839-13521-1
MKS BY150
MODICON 140CRP93100
Modicon AS-B875-002
MODICON NW-BM85-000
MODICON PC-L984-785
MOOG 773-558
MOOG T161-902A-00-B4-2-2A
MOOG T161-903A-00-H1-2-AA
MOORE 16310-71-1 6209-2039-1
MOORE 42-30
MOORE 750E1B2GNNNF
MOTOMAN HW9381022
MOTOROLA 30-W2960B01A
MOTOROLA 84-W8324F01BFAB 01-W3324F/12
MOTOROLA CPCI-6020TM
MOTOROLA FAB 0340-1049
MOTOROLA MCP750
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MOTOROLA MVME117A
MOTOROLA MVME147-013
Motorola MVME147SA-1
MOTOROLA MVME162-012
MOTOROLA MVME162-012
MOTOROLA MVME162-012
MOTOROLA MVME162-023A
MOTOROLA MVME162-032
MOTOROLA MVME162-10
MOTOROLA MVME162-13
MOTOROLA MVME162-13
MOTOROLA MVME162-210
MOTOROLA MVME162-212
MOTOROLA MVME162-220
MOTOROLA MVME162-512
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MOTOROLA MVME162-512A
MOTOROLA MVME162-522A
MOTOROLA MVME162-522A
MOTOROLA MVME162-522A 01-W3960B/61C
MOTOROLA MVME162-533A
MOTOROLA MVME162PA-344
MOTOROLA MVME162PA-344E
MOTOROLA MVME167-33B
MOTOROLA MVME172-263/260
MOTOROLA MVME188A
MOTOROLA MVME2301-900
MOTOROLA MVME2604 712I/O
MOTOROLA MVME300    11月23日