福建中立恒自动化设备有限公司

输入/输出滞后时间又称系统响应时间，是指PLC部输入信号发生变化的时刻至它控制的有关外部输出信号发生变化的时刻之间的时间间隔，它由输入电路滤波时间、输出电路的滞后时间和因扫描工作方式产生的滞后时间这三部分组成。

输入模块的RC滤波电路用来滤除由输入端引入的干扰噪声，因外接输入触点动作时产生的抖动引起的不良影响，滤波电路的时间常数决定了输入滤波时间的长短，其典型值为10ms左右。

输出模块的滞后时间与模块的类型有关，继电器型输出电路的滞后时间一般在10ms左右;双向晶闸管型输出电路在负载通电时的滞后时间约为1ms，负载由通电到断电时的滞后时间为10ms;晶体管型输出电路的滞后时间一般在1ms以下。

PLC总的响应延迟时间一般只有几十ms，对于一般的系统是无关紧要的。要求输入输出信号之间的滞后时间尽量短的系统，可以选用扫描速度快的PLC或采取其他措施。

以下链接皆有货

 UE TM TRANS METRICS P21BB-211 PRESSURE SWITCH-TRANSDUCER

 UE UNITED ELECTRIC F27A-70B TEMPERATURE CONTROL SWITCH 15AMP 125/250V

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 UE UNITED ELECTRIC H54-25-9516 PRESSURE SWITCH 10-100 PSI

 UE UNITED ELECTRIC J41-8936 PRESSURE CONTROL SWITCH

 UE UNITED ELECTRIC J6-612 9716 PRESSURE SWITCH

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  UHV 0040-62688 REV 001 KSM-053-3738

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 VICKERS DG4V-3S-2N-M-FTWL-B5-60 SOLENOID DIRECTIONAL VALVE 110/120V

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 VICKERS DG4V-5-2N-M-U-EK6-20 DIRECTIONAL SOLENOID VALVE 115V COIL

VICKERS DG-5S4-104C-E-230-AC-60-20-SPEC DIRECTIONAL VALVE

VICKERS DG5S-8-2A-M-FW-H5-30 DIRECTIONAL CONTROL VALVE DG4V-3S-2A-M-FW-HS-60

 VICKERS DG5S8-9A-M-U-B-30 110/120V COIL DIRECTIONAL VALVE

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 VICKERS DGMC-3-PT-BW-41 PRESSURE RELIEF VALVE 869640

 VICKERS DGMFN-3-X-A2W-B2W-41 FLOW CONTROL VALVE

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 VICKERS DGVM3-10S SUB PLATE P/N 466731

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 VICKERS EATON DG4V-3S-2AL-M-U-B5-60 SOLENOID VALVE 110/120V COIL

 VICKERS EATON VT151V1C05 HYDRAULIC FILTER ELEMENT

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