IC697MDL340

IC697MDL340

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〖：歐工         〗
〖(同號(hào))       〗
〖:  2479261344     〗
〖  
【價(jià)格】如此低價(jià),* 
【貨期】大量現(xiàn)貨,下單后即可發(fā)貨
【質(zhì)量】*,進(jìn)口***
【保障】產(chǎn)品經(jīng)過(guò)專業(yè)檢測(cè)，質(zhì)保一年,15天包退換
【品牌】Allen-Bradley羅克韋爾、ABB、本特利Bently 3500系統(tǒng)卡件、GE、艾默生西屋等模塊卡件
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如果某個(gè)分機(jī)出現(xiàn)異常情況下（如死機(jī)），就會(huì)一直占用總線，導(dǎo)致整個(gè)系統(tǒng)通訊崩潰。因此在電路設(shè)計(jì)時(shí)，要保證系統(tǒng)上電復(fù)位時(shí)75176的DE端電位為“0”，采用如圖2的接法。由于MSP430在復(fù)位期間，I/0口電位為“1”，發(fā)光管不發(fā)光，光電三極管不導(dǎo)通，75176的DE端電位為“0”，釋放總線，從而有效地解決復(fù)位期間分機(jī)“咬”總線的問(wèn)題。增強(qiáng)了系統(tǒng)通訊的可靠性和穩(wěn)定性，同時(shí)有效地解決了工，作現(xiàn)場(chǎng)與控制室之間的分離，保證了工作人員人身安全。

圖2 RS-485接口原理圖

2.4 單片機(jī)控制的M.DBUS通訊原理

　　目前，工業(yè)上的MODBUS通訊協(xié)議已經(jīng)成為電子控制器上的一種通用語(yǔ)言協(xié)議。通過(guò)此協(xié)議，控制器相互之間、控制器經(jīng)由網(wǎng)絡(luò)（例如以太網(wǎng)）和其它設(shè)備之間可以通訊。它已經(jīng)成為一通用工業(yè)標(biāo)準(zhǔn)。用它來(lái)實(shí)現(xiàn)不同廠商生產(chǎn)的控制設(shè)備連成工業(yè)網(wǎng)絡(luò)，進(jìn)行集中監(jiān)控。

　　基于此，可以根據(jù)實(shí)際工業(yè)網(wǎng)絡(luò)數(shù)據(jù)采集的一主多從的實(shí)際數(shù)據(jù)選擇模型，該模塊采用了此協(xié)議，因?yàn)閰f(xié)議定義了一個(gè)控制器能認(rèn)識(shí)使用的消息結(jié)構(gòu)，而不管它們是經(jīng)過(guò)何種網(wǎng)絡(luò)進(jìn)行通訊的。因此不管上位機(jī)是什么樣類型的測(cè)控設(shè)備，就按固定的MODBUS通訊協(xié)議要求的協(xié)議格式來(lái)回應(yīng)來(lái)自主設(shè)備的請(qǐng)求，并進(jìn)行偵測(cè)錯(cuò)誤記錄。按照協(xié)議中要求的消息域格局和內(nèi)容的公共格式回應(yīng)。

MVME3604-1 1
Motorola MVME3604-1141 4
Motorola MVME3604-1151 1
Motorola MVME3604-5332 1
Motorola MVME3604-5342 1
Motorola MVME3604-5352 1
Motorola MVME3604-6342 5
Motorola MVME3604-6352 1
Motorola MVME372 6
Motorola MVME374  6
Motorola MVME374-1 2
Motorola MVME376 9
Motorola MVME385 6
Motorola MVME385-120 1
Motorola MVME393 1
Motorola MVME4604-1141 Dual 200MHz 64MB 1
Motorola MVME4604-5362 Dual 300MHz 256MB 2
Motorola MVME4604-5462 Dual 400MHz 256MB 1
Motorola MVME5100-0131 1
Motorola MVME5110-2251 0
Motorola MVME705-1 4
Motorola MVME705A 312
Motorola MVME705A 4
Motorola MVME705B 40
Motorola MVME710B 20
Motorola MVME712-104 1
Motorola MVME712M 1
Motorola MVME712M MVME712/M 190
Motorola MVME714 25
Motorola MVME719 2
Motorola MVME741 365
Motorola MVME742 225
Motorola MVME761-001 0
Motorola MVME761EXT 1
Motorola MVME785-MIC 9
Motorola MVME854TK 01-W2755D01C 12
Motorola MVME946 29
Motorola MVPI300 1
Motorola MVSB741 60
Motorola PMC-Span 01-W3298F01A 1
Motorola PPMC750-1231 1
Motorola PV5300B33 1
Motorola SMMXER3E100X0 5
Motorola SuperNode system with the following boards: 01-W1589B01C 01-W1590B01B 01-W1591B04L 01-W1644B04BB 01-W2844D01H 01-W2844D02H 01-W2845D03G 01-W2845D04G 01-W3896B01F  "1

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Motorola TMCP700-001 1
Motorola XR-342 XR342 1
Motorola XR712-121K 6
Motorola XR712-123TPK 2
National Instruments VME-MX 1
National Instruments VME-MXI-2 1
National Instruments VME-MXII 1
Natural Microsystems AG Quad CPCI PN 5536 2
Natural Microsystems TX 3210 PN 5646 Revision 2 82
Odetics AITG-VME AITGVME VTTR-VME VTTRVME 1
Oregon Micro Systems PCBVX2B 1
Oregon Micro Systems VME37410 4
Oregon Micro Systems VME8 4
Oregon Micro Systems VMEXBJ1S
Osicom 2250 PMC FDDI  
Pentek 4252 A/D D/A 1
Pentek 4283 Floating Point DSP 1
Pentek 6102 Analog I/0 Comm Board 2
Performance Technology PT-418 1
Performance Technology PT-418A 2
Performance Technology PT-VME600 PT-VME 600 PT-VME600A 
PRI PRI-64 1
PurUp PurUp PS-Link 1
Pyramid Technical PTC 9000-99021 RF Processor 1
Pyramid Technical PTC 98011 RF Controller 1
Pyramid Technical PTC 98037 1
Radisys EPC-7 EPC7 6
Radisys EPC-9 20
Radisys PCI Expansion Bus 4
Radisys PCI Expansion Module 4
Radisys  CP80-15 with EPC-3322  3
Radstone PPC1A-740 PPC1A-3BA-1B36F 18
Radstone PPC2A-603e 2
Raycal 1260-54 1.3GHz Multiplexer 20
Realtime Logic! RT-GPIO 3
Realtime Logic! RTL-SCBECL 1
RGB Spectrum RGB View 600 RGB/View 600 1
Sanritz Automation SVA009 1
Sanritz Automation SVA009 1
Sanritz Automation SVA011-26 C 4
Sanritz Automation SVA011-26 D 5
Sanritz Automation SVA011-30 F 8
Sanritz Automation SVA011-30Z E 1
Sanritz Automation SVA011-30Z F 4
Sanritz Automation SVA011-30Z F 5
Sanritz Automation SVA011-30Z F with SC8506-1E and SC7005-F101 10
Sat 4K Switch Matrix Board 1008700-100 1
Sat 4K Switch Matrix Power Supply 1009035-101A 1
Sat DHX Cards 1005460-100 7
Sat DHX Transition Board 1009835 B 7
Sat Digital Voice Expansion 100-3534-001 1
Sat DSS Power Card 1005255-101 5
Sat DTMF/MF 1009160-101c 4
Sat E1 Trunk Card 1005400-100 3
Sat Group Link Expansion  3
Sat Group Link Expansion 01-100-09850-000 3
Sat Line Cards 1009015-100 3
Sat Parallel Serial 1008710-100 4
Sat T1 Trunk Card 1005460-106 4
SBE VCOM-33 1
SBE VCOM-54 1
SBS 422-202 2
SBS CPro3 CPro3/32 CPro3/128 30
SBS PMC-3101 12
SBS PMC-3101BP 100
SBS PMC-SCSI 4
SBS PMC-Sual100BT 2
SBS Power4e Power 4e 3
SBS V5A 2
SBS V5B 2
SBS VME-6200 VME6200 2
SBS Bit 3 82902250 82902240 2
SBS Bit 3 85154558 85154538 2
SST 5136-DNP-VME-4  4
SST 5136-DN-VME 1
Synergy V440 3
Systech HPS-6245-25 1
Tadpole TP-34v 3
Themis SPARC 2SE 2SE-64 13076-10 2
Themis SPARC 20MP 20MP-128-125-1HE 1
Themis SPARC 10MP 10MP-65-50-1S 1
Themis UltraSparc USP-1 USP1-256-200 1
TEWS Datentechnik TIP810-10 3
TEWS Datentechnik TIP811-10 1
TEWS Datentechnik TIP903-10 5
TEWS Datentechnik TPMC670-11 2
TEWS Datentechnik TPMC815-21 6
TI TMS320C8X 1
Trenton CPBI/600E 1
Univoice UV-4 1
Unspecified 00724-95-00342-007 10
Unspecified 00724-95-03199-003 10
Unspecified 8136-SVME20 CLB 1
Unspecified CIO-1A 4
Unspecified FDC-3 2
Unspecified ICU-1A 8
Unspecified ICU-1B 4
Unspecified PIA-3A 3
Unspecified PME 68-41 1
Unspecified SBS-6H256 1
Unspecified SBS-6V256 1
Unspecified TVME712 4
Unspecified Video 37410 37410-105 3
Unspecified Video 79750 79750-103 3
Unspecified VMEXBJ1S 10
Various Various 8
VIPERdsp Viper-48 5420/cPCI 32
Visual Information Tech. 30HP0001-1 30HP00011 Rev-C 1
Visual Information Tech. 30HP0002-1 30HP00021 Rev-C 1
VME Specialists SRML 0320-0041 1
Vmetro MIDAS 220YR 1
Vmetro MIDAS RX M220SR-128D2 RaceWay 2
Vmetro VMFC2100 VMFC-2100 1
VMIC VMIPMC-5579 VMIPMC5579 9
VMIC VMIVME HSD 1
VMIC VMIVME VME Repeater 2000 6
VMIC VMIVME1110 VMIVME-1110 17
VMIC VMIVME1128 VMIVME-1128  1
VMIC VMIVME1160A 1
VMIC VMIVME1180 VMIVME-1180 2
VMIC VMIVME2120 VMIVME-2120  4
VMIC VMIVME2128 VMIVME-2128 1
VMIC VMIVME2131 VMIVME-2131 2
VMIC VMIVME2210 1
VMIC VMIVME2536 VMIVME-2536 10
VMIC VMIVME3100 VMIVME-3100 6
VMIC VMIVME3113A VMIVME-3113A 1
VMIC VMIVME3210 VMIVME-3210 6
VMIC VMIVME4101 VMIVME-4101 20
VMIC VMIVME4132 VMIVME-4132 1
VMIC VMIVME4512 VMIVME-4512 2
VMIC VMIVME4514A VMIVME-4514A 1
VMIC VMIVME4800 VMIVME-4800 1
VMIC VMIVME6015 VMIVME-6015 1
VMIC VMIVME7432 VMIVME-7432 3
VMIC VMIVME7452 VMIVME-7452 1
VMIC VMIVME7455 VMIVME-7455 3
VMIC VMIVME7487A VMIVME-7487A 3
VMIC VMIVME7489 VMIVME-7489 3
VMIC VMIVME7697 VMIVME-7697 10
VMIC VMIVME7740 VMIVME-7740 1
WSI WS600C 1
Xycom MCT-6020 MCT6020 5
Xycom SRM XVME-010 2
Xycom XVME-010 7
Xycom XVME-212 4
Xycom XVME-212/DIN 6
Xycom XVME-220 4
Xycom XVME-220/DOUT 10
Xycom XVME-228/3 1
Xycom XVME-290 2
Xycom XVME-956 
Ziatech ZT5510-S353D 10
Zi Pattern Memory 2