1794-ACNR15 1794-ACNR15
西門子PLC的網(wǎng)絡(luò)是適合不同的控制需要制定的,也為各個網(wǎng)絡(luò)層次之間提供了互連模塊或裝置,利用它們可以設(shè)計出滿足各種應(yīng)用需求的控制管理網(wǎng)絡(luò)。西門子S7系列PLC網(wǎng)絡(luò)采用3級總線復(fù)合型結(jié)構(gòu),zui底一級為遠程I/O鏈路,負責與現(xiàn)場設(shè)備通信,在遠程I/O鏈路中配置周期I/O通信機制。中間一級為Profibus現(xiàn)場總線或主從式多點鏈路。前者是一種新型現(xiàn)場總線,可承擔現(xiàn)場、控制、監(jiān)控三級的通信,采用令牌方式與主從輪詢相結(jié)合的存取控制方式;后者為一種主從式總線,采月主從輪詢式通信。zui高一層為工業(yè)以太網(wǎng),它負責傳送生產(chǎn)管理信息。在工業(yè)以太網(wǎng)通信協(xié)議的下層中配置以802.3為核心的以太網(wǎng)協(xié)議,在上層向用戶提供TF接口,實現(xiàn)AP協(xié)議與MMS協(xié)議。
PLC要提供金字塔功能或者說要實現(xiàn)NBS或ISO模型要求的功能,采用單層子網(wǎng)顯然是不行的。因為不同層所實現(xiàn)的功能不同,所承擔的任務(wù)的性質(zhì)不同,導致它們對通信的要求也就不一樣。在上層所傳送的主要是些生產(chǎn)管理信息,通信報文長,每次傳輸?shù)男畔⒘看螅笸ㄐ诺姆秶脖容^廣,但對通信實時性的要求卻不高。而在底層傳送的主要是些過程數(shù)據(jù)及控制命令,報文不長,每次通信量不大,通信距離也比較近,但對實時性及可靠性的要求卻比較高。中間層對通信的要求正好居于兩者之間。
PLC網(wǎng)絡(luò)的分級與生產(chǎn)金字塔的分層不是—一對應(yīng)的關(guān)系,相鄰幾層的功能,若對通信要求相近,則可合并,由一級子網(wǎng)去實現(xiàn)。采用多級復(fù)合結(jié)構(gòu)不僅使通信具有適應(yīng)性,而且具有良好的可擴展性,用戶可以根據(jù)投資情況及生產(chǎn)的發(fā)展,從單臺PLC到網(wǎng)絡(luò)、從底層向高層逐步擴展。下面列舉幾個有代表性公司的PLC網(wǎng)絡(luò)結(jié)構(gòu)。
+ 本公司有大量庫存現(xiàn)貨,歡迎訂購,當天可發(fā)貨!?。。。。?br />
3150-mcm 3150-mcm
HMD01_1N-W0020-A-07-NNNN
HMD01.1N-W0036-NNNN
HMD01_1N-W0036-A-07-NNNN
力士樂驅(qū)動\板卡HNL系列型號:
編號 Cat.description Part NO.
HNL01.1E-0100-N0202-A-480-NNNN /R911306578 HNL01.1E-0200-N0125-A-480-NNNN/ R911306579 HNL01.1E-0400-N0051-A-480-NNNN /R911306580 HNL01.1E-0600-N0032-A-500-NNNN/ R911306773 HNL01.1E-1000-N0020-A-500-NNNN /R911306777
HNL01.1E-0240-N0106-A-500-NNNN /R911307203 HNL01.1E-0362-N0080-A-500-NNNN /R911307204 HNL01.1E-0571-N0050-A-500-NNNN /R911307205
HNL01.1E-1000-N0012-A-500-NNNN/R911306775
HNL01.1 E-1000-N0012-A-500-NNNN/R911306775
HNL01.1 E-1000-N0020-A-500-NNNN/R911306777
HNL01.1 E-0600-N0032-A-500-NNNN/R911306773
HNL01.1E-0571-N0050-A-500-NN NN R911307205
HNL01.1E-0100-N0202-A-480-NNNN R911306578 HNL01.1E-3400-S0202-A-480-NNNN R911306590
HNL01.1E-0200-N0125-A-480-NNNN R911306579
HNL01.1E-2800-S0125-A-480-NNNN R911306589
HNL01.1E-0400-N0051-A-480-NNNN R911306580 HNL01.1E-5700-S0051-A-480-NNNN R911306591
HNL01.1 E-0362-N0080-A-500-NN NN R911307204
HNL01.1R-0540-C0094-A-480-NNNN R911306582 HNL01.1R-0540-C0094-A-480-NNNA R911307981 HNL01.1R-3000-S0094-A-480-NNNN R911306602 HNL01.1R-0590-C0065-A-480-NNNN R911306583 HNL01.1R-6300-S0065-A-480-NNNN R911306605
HNL01.1R-0980-C0026-A-480-NNNN R911306584 HNL01.1R-4200-S0026-A-480-NNNN R911306603
HNL01.1R-0540-C0094-A-480-NNNN /R911306582 HNL01.1R-0590-C0065-A-480-NNNN/R911306583
HLR01.1N-0300-N17R5-A-007-NNNN R911305931 HLR01.1N-01K6-N18R0-A-007-NNNN R911306869 HLR01.1N-03K4-N19R0-A-007-NNNN R911306748 HLR01.1N-04K2-N18R0-A-007-NNNN R911306878 HLR01.1N-05K9-N18R0-A-007-NNNN R911306879 HLR01.1N-09K0-N18R0-A-007-NNNN R911305863 HLR01.1 N-0470-N 11R7-A-007-NNNN R911305932 HLR01.1 N-02K0-N 15R0-A-007-NNNN R911306870 HLR01.1 N-05K0-N 15R0-A-007-NNNN R911306881 HLR01.1 N-06K3-N 14R0-A-007-NNNN R911306871 HLR01.1 N-09K1-N13R0-A-007-NNNN R911306880 HLR01.1 N-13K3-N 13R0-A-007-NNNN R911305864
HNL01.1E-0240-N0106-A-500-NN NN R911307203 HLR01.1N-0780-N07R0-A-007-NNNN R911305933 HLR01.1N-04K5-N07R4-A-007-NNNN R911306921 HLR01.1N-08K3-N08R0-A-007-NNNN R911306872 HLR01.1N-10K3-N07R3-A-007-NNNN R911306873 HLR01.1N-15K0-N08R1 -A-007-NNNN R911306875 HLR01.1N-22K0-N07R2-A-007-NNNN R911305865
力士樂驅(qū)動\板卡HNF系列型號:
編號 Cat.description Part NO.
HNF01.1A-F240-R0094-A-480-NNNN/ R911306295
HNF01.1A-M900-E0125-A-480-NNNN /R911306436 HNF01.1A-F240-E0125-A-480-NNNN/ R911306437 HNF01.1A-M900-E0051-A-480-NNNN/ R911306532 HNF01.1A-F240-R0065-A-480-NNNN/ R911306533 HNF01.1A-M900-E0202-A-480-NNNN /R911306536
HNF01.1A-F240-E0051-A-480-NNNN/ R911307937 HNF01.1A-F240-E0202-A-480-NNNN /R911307938
HNF01.1A-F240-R0094-A-480-NNNN R911306295 HNF01.1A-M900-R0094-A-480-NNNN R911306296 HNF01.1A-F240-R0065-A-480-NNNN R911306533 HNF01.1A-M900-R0065-A-480-NNNN R911306534 HNF01.1A-F240-E0202-A-480-NNNN R911307938 HNF01.1A-M900-E0202-A-480-NNNN R911306536 HNF01.1A-F240-E0125-A-480-NNNN R911306437 HNF01.1A-M900-E0125-A-480-NNNN R911306436 HNF01.1A-F240-R0026-A-480-NNNN R911306539 HNF01.1A-M900-R0026-A-480-NNNN R911306535 HNF01.1A-F240-E0051-A-480-NNNN R911307937
HNF01.1A-M900-E0051-A-480-NNNN R911306532
















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