描述
在选择设备时,首先要选择有较高抗干扰能力的产品,其包括了电磁兼容性(EMC),尤其是抗外部干扰能力,如采用浮地技术、隔离性能好的PLC系统;其次还应了解生产厂给出的抗干扰指标,如共模拟制比、差模拟制比,耐压能力、允许在多大电场强度和多高频率的磁场强度环境中工作;另外是靠考查其在类似工作中的应用实绩。在选择国外进口产品要注意:我国是采用220V高内阻电网制式,而欧美地区是110V低内阻电网。由于我国电网内阻大,零点电位漂移大,地电位变化大,工业企业现场的电磁干扰至少要比欧美地区高4倍以上,对系统抗干扰性能要求更高,在国外能正常工作的PLC产品在国内工业就不一定能可靠运行,这就要在采用国外产品时,按我国的标准(GB/T13926)合理选择。
产品承
保 证 全新原装进口,
保 证 安全准时发货,
保 证售后服务质量,
优势价格,大量现货。
主营DCS系统配件
机器人系统配件
大型伺服系统配件
品牌:ABB ,AB ,GE,FOXBORO,本特利,英维思,伍德沃德,西屋,瑞恩,施耐德,西门子,摩托罗拉,安川。力士乐。ACSO,横河等进口品牌。 专业销售进口DCS PLC系统备件模块
Triconex Siemens Yaskawa ABB GE Ovation AB Foxboro Motorola Schneider XYCOM KUKA 专业销售进口DCS PLC系统备件模块 15天包退换 一年质保 大量现货 国内实力库存商家
NetApp Compatible DSX-10.5TB-R5 SATA Shelf with AT-FCX
NetApp Compatible DS14Mk2-AT SATA Shelf AT-FCX 14x750GB
NetApp FAS940 Filer w/4x DS14MK2 14x 144GB 15K X275A-R5
NetApp SK-F840C Spares Kit for F840 Filer – NEW
NetApp SK-F840B Spares Kit for F840 Filer – NEW
Qty 100 NETAPP 300GB 10K X276A FC for DS14MK2 DS14MK4
Lot 100pcs NETAPP 300GB 10K X276A FC Disks SP-276A
NetApp NetCache C2100 Base Unit
Lot 20pc Netapp X269A-R5 SP-269A-R5 108-00180 1TB SATA
NETAPP FAS3020 6x DS14MK2 144GB 15K X275A-R5 12TB RAW!
NetApp DS14MK4 SHLF,14x 600GB,15K,ESH4,QS,R5,New no box
NetApp FAS940 Filer w/4x DS14MK2-AT 14x 500GB X267A-R5
NetApp FAS270 w/14 X276A 300GB 6 Transferable Licenses
Netapp FAS3070 w/2x DS14MK4 X278A-R5 144GB 15K 4gpbs
Netapp FAS3070 w/2x DS14MK2 X276A-R5 300GB 10K 8.4TB
NetApp DS14mk4 Shelf w/14 x X291A 450GB 15K Drives
NetApp FAS980 Filer w/4x DS14MK2 14x 144GB 15K 8TB!!!
NetApp FAS980 Filer w/4x DS14MK2 14x 144GB 15K 8TB!!!
NetApp FAS2020C 12 X 1TB SATA X298A-R5 FAS2020
NetApp 14 x 450gb DS14 MK4 Shelf – X291 X291A disks
Netapp FAS3070-BASE-R5-C (2) Clustered Filer Heads
**SPECIAL NetApp FAS3020 Filer Head FAS3020-BASE1G-R5-C
NetApp FAS3050c Filer 2x DS14MK2-AT 14x 500GB X267A-R5_
NetApp FAS3070 Filer w/2x DS14MK2-AT 14x 500GB X267A-R5
NETAPP FAS3070C Cluster (2) Filer Heads FAS3070
INSTOCK!! ALL TYPES OF DISK SHELVES AVAILABLE!!!
NetApp FAS3050c Filer w/2 DS14MK2-AT 14x 500GB X267A-R5
NetApp FAS980 Filer w/2x DS14MK2-AT 14x X268A-R5 21TB!
Netapp FAS2050-20-X287A-R5 FAS2050 20x 300GB 15K SAS
NetApp FAS3050 Filer 2x DS14MK2-AT (14) 750GB X268A
NetApp FAS3050 Filer w/2x DS14MK2-AT 14x 750GB X268A-R5
NetApp FAS3020 Filer w/2x DS14MK2-AT 14x 750GB X268A-R5
NETAPP FAS3020 w/6x DS14MK2 144GB 10K X274B-R5 12TB!!!
NETAPP DS14MK4 w/ (14) X291A-R5 450GB 15K FC-AL ‘NEW’
Network Appliance NETAPP FAS3020 W/ NFS, CIFS, ISCSI
NETAPP FAS3020 w/6x DS14MK2 144GB 10K X274B-R5 12TB!!!
NetApp FAS3050c Cluster Filer w/2 DS14MK2-AT 14x 500GB
Netapp X54015A-ESH4-QS-R5 DS14MK4 X291A 450GB 15K 6.3TB
Netapp X54015A-ESH4-R5-C DS14MK4 X291A-R5 450GB 15K
NetApp DS14 MK4 14x 450GB 15K X291A-R5 4.2TB 4gpbs
NetApp SK-FAS940 Spares Kit for FAS940 System
Network Appliance NETAPP FAS2020 w/CFS,NIFS,ISCSI!!
NetApp FAS2020C 12 X X287A-R5 300GB 15K SAS FAS2020
Network Appliance NETAPP FAS940 w/TRANSFERABLE LICENSES
PLC模块,可编程控制器,CPU模块,IO模块,AI模块,通讯模块。AB/施耐德/ABB/GE/本特利/西屋/英维斯/霍尼韦尔/黑马/FU克斯波罗
15天包退换 一年质保 大量现货 国内实力库存商家