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。
Leco Corp Acquisition Timing Control Board 666-506B010, 666-506A-A2
SCHNEIDER ELECTRIC MODICON 140-XBP-016-00 140XBP01600 16 SLOT BACKPLANE
Jiper Networks 740-002497 SP0425 2A Power Supply
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Scientific Atlanta 741150 REAR INTERFACE 9815
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Sony 1-648-534-14 DVW-A500P APR-1 Board
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DEC HSJ50 Controller Board 54-23885-03
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FRED MKII 4X4 ADDITIVE AUDIO MIXER
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HP 506285-001 MOTHERBOARD WITH INTEL i3-530 CPU 16GB RAM FAN HEATSINK
JDSU ISS-5116 Input Selector Switch
COMPAQ 332857-001 MOTHERBOARD INTEL PENTIUM II 266MHz SL2HE CPU H/S FAN
Aurora AT3312G Transmitter AT3312G-N-1-AS
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DOLBY DIGITAL ADB-4820CD DECODER
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DELL POWERVAULT ML6000 TAPE DRIVE 0WN444 / IBM LTO4 Drive ASM UDS3 FC 8-00491-01
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Sony K APR-1BA VIDEO BOARD 1-648-534-22
Sony DIF-16 VIDEO BOARD 1-648-531-13
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Scientific Atlanta Continuum Series 9890 ENCODER 9814 CONTROLLER 748030
Sony 1-640-033-14 Control Board TBC-18
GA100562 P.E.C. POWER SUPPLY CARD
MRV Fiber Driver Chassis with Power Supply ONLY 48 V-DC Input NC316BU-1/DC-R
MRV Fiber Driver Chassis with Power Supply ONLY 100-240V NC316BU-1/AC
Aurora AT3311G Transmitter AT3311G -N-1-AS
IXIA EF1101 WaveDeploy Ethernet 802.3
SUPERMICRO X7DVL-E REV: 1.21 MOTHERBOARD WITH 1 XEON E5430 16 GB RAM
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KONTRON BACKPLANE 082-0162-01-A KONTRON ASSY 082-0161-01-A BACKPLANE BOARD
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Dell 0N6381 MOTHERBOARD 2.80GHZ PENTIUM 4 1GB RAM
Harmonic HRM3811 OPTICAL RECEIVER MODULE HRM3811-AS-5
INTEL DQ965GF LGA775 MOTHERBOARD D41676-603 WITH 2.13GHz CORE 2 DUO CPU
AIR-CON II C-SR63 PNEUMATIC ACTUATOR
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HP - Agilent - Keysight E1446A Summing Amplifier/DAC
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Motorola 900MHz 4-WAY MULTI-COUPLER-OUT CLF6491E
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ISIS GROUP S8400 VIDEO 8 X 4 XPT 03-8423 / 04-8423 C
Ixia / Catapult systems module card 9310-0819
Aurora ARRIS AT3309G ANALOG Transmitter DUAL RF INPUT AGC AT3309G-A-2-AS REV. R
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Sony DR-118 Board 1-640-030-15
COMPAQ 320446-01 MOTHERBOARD AMD K6-2 CPU 320MB RAM FAN H/S
Dell 0P8611 Poweredge Server 1800 System Board 1 XEON CPU 2GB RAM
Ixia LM1000STX4 4-Port Dual-PHY (RJ45 and SFP) 10/100/1000 Mbps Enet Load Module
AC R Components S-7046 Refrigerant Accumulator S7046
Scientific Atlanta 546091 Modulator Rear Interface Module 9804A
Scientific Atlanta 546092 Modulator Rear Interface Module 9804C
Cisco 15454-10E-MR-TXP-C MULTI-RATE 10G TRANSPONDER CARD WMOPCDTCAA
NMS/Dialogic TX4000 776A-TX4000
MOXA Nport IA5250AI-T V1.0.1
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DELTACAST DELTA-ASI-ELP 01 SN485/PPA/F/2.1/023 SINGLE PORT CAPTURE CARD
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PAPST MULTIFAN 4312/2 FAN CONTROL MODULE 1084.8904.02
EVERTZ 7700DA8-HD 1.5GB/S RECLOCKING/NON CLOCKING DA A7700HD00
ATX Maxnet II Platinum Series QMP1000-21GPF Forward RF Amplifier
ATX Maxnet II MPRFA/BFH 1218MHz RF Detector/Switch
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HP Z400 Motherboard WITH XEON W3550 12GB Ram 586968-001
HP Z400 Motherboard WITH XEON W3550 12GB Ram 586968-001
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IBM 00K8747 MOTHERBOARD CPU 512 MB RAM
Acterna HSM1000 ISS-5116 INPUT SELECTOR SWITCH