LDGRB-01 ABB PLC的特点

RELIANCE 57C411
RELIANCE 57C409
RELIANCE 57C652
RELIANCE 57C410A
H0NEYWELL CC-PCNT02
Pioneer Magnetics PM3326B-6-1-2-E
VALMET A413280
VALMET A413305
WOODWARD 9907-162
YOKOGAWA PW482-10
YOKOGAWA ANR10D
DURAG D-UG660-20
SIEGER 05704-A-0145

分类: 标签:

Description

为使PLC能可靠工作,在硬件与软件两个方面PLC厂家都采取了很多措施,对一些特殊可靠要求的PLC,还有相应的特殊的措施,如热备、冗余等等。这在介绍PLC的特点时已作了叙述。可靠措施的目的是增加PLC平均故障间隔时间、MTBF(MeanTimeBetweenFailure)及减少PLC的平均修复时间、MTTR(MeanTimeToRepair)

Newbridge Alcatel STM1 UNI/NNI 90-1992-02/L Long Reach

Telrad Imagen Voicemail 83-020-9500 /1 DVC 4 Port Board

HP DL140 G3 XEON 5110 1.6GHz 2GB SERVER

New HP Q7565-67909 Kit-LJ M5035 MFP fmtr replacmnt