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提高外部设备的响应速度。在PLC内部实现高速化的同时，还要提高外部设备的响应速度，才能整体提高整个系统的性能，为此，在缩短I/O模块的输入输出响应时间，提高模拟量输入输出模块的模-数和数-模转换时间，下了不少工夫，以求得系统整体的控制速度达到毫秒级以下。例如，在晶体管输出模块的输出电路中选用高性能的晶体管，使响应时间加快50%；在直流输入模块中，其输入的时间常数回路采用**ASIC芯片，可通过编程软件选择输入模块的响应时间为1/5/10/20/70毫秒；为提高模拟量模块的转换时间，采用A/D或D/A的**芯片，是转换速度为原先的1/2—1/6。另外也通过开发**的处理器和通信**ASIC，缩短通信网络模块之间的通信链接的循环时间。
信息技术渗入PLC。信息技术渗入PLC是为了适应工厂控制系统和企业信息管理系统日益**结合的发展趋势；适应在控制层面让不同品牌的PLC之间，让PLC与DCS、SCADA等系统之间，能有效而足够快地交换数据的市场要求。它主要表现在：
Juniper Networks M20BASE-DC 1Year Warranty 2X Available
Juniper P-ML-32 PIC for M20/M40 Warranty
Juniper PB-MS-100-1 PB MS 100
Expedited shipping available
Juniper PB-MS-100-1 PB MS 100
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Juniper PB-1CHOC3-SMIR-QPP PB 1CH03 SMIR QPP
Expedited shipping available
Juniper Networks M7i Wired Router
Juniper M40e-FPC1 Warranty
Juniper M20 M20BASE-AC Backbone Router
Juniper M20 M20BASE-DC Backbone Router
NEW JUNIPER SRX240H-POE
Juniper Networks M40E-FPC1-EP-A Module HECI: IPUCADNCAA
New Juniper SSG-320M-SH
Juniper CIP-L-T320-S
Juniper FANTRAY-T320-S
Juniper PB-4CHDS3-QPP
JUNIPER : NETSCREEN-SA-5000 NS-SA-LAB-5000
JUNIPER : NETSCREEN-SA-5000 NS-SA-LAB-5000-CP
JUNIPER : NETSCREEN-SA-5000 NS-SA-5000
JUNIPER : NETSCREEN-SA-5000 NA-SA-5050A-CP
JUNIPER : NETSCREEN-SA-5000 NA-SA-5000A-C4-5000
Juniper OC3/OC12ATM 4-OC3 & 1-OC12 ATM LINE CARD OC3OC1
HA pair Juniper Netscreen NS-204 Adv Firewall * 25/50
Firmware 5.4 r19,remote client,unlimited users, 1YR wty
JUNIPER NETWORKS PC-1OC192-SON-SR2
OC192 PIC M160/T320/T640
JUNIPER NETWORKS PC-1OC192-SON-SR2
Nice Juniper Netscreen NS-208-001 Adv Firewall * 2000
Juniper PB-1GE-SFP-QPP IQ QPP version
Juniper IB-OC192-SON-SR2-E - Enhanced 1 Port OC192 M160
List Price $235,000.00 - 90 Day Warranty - Free Ship!
Juniper M5 Router AC PE-1GE-SX M5BASE-AC-E RE333-768
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Juniper ERX-OCXA256M-MOD ERX1440 OC3/OC12/DS3 Line Card
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Juniper ERX1440 COC12FO-SM-I/O Channelized OC12/STM4 IO
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Juniper M160-FPC1-E Enhanced PIC Concentrator M160
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Juniper ERX-COC12SM-A-IOA Channelized OC12 for ERX 1440
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Juniper PE-2CHDS3 2-port Channelized DS3 PIC M7i M10i
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Juniper PWR-T320-DC-S T320 Power Entry Module DC Power
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Juniper T320-FPC2 2-Port PIC Concentrator T320 Router
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Juniper PB-4CHDS3-QPP DS3 M120 M320 T320 T640 T1600 PIC
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NEW Juniper PE-2E3-ATM2 2-Port E3 ATM2 IQ PIC M7i M10i
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Juniper Netcreen 5000 * firewall NS-SA-F5000 NEW