6ES5440-8MA22進(jìn)行隔離是防止電流在兩個(gè)通訊點(diǎn)之間流動(dòng)的一-種方法。-般在兩種情況下采用隔離:*
-種情況是,在有可能存在損壞設(shè)備或危害人員的潛在的電流浪涌時(shí)。*二種情況是必須避免
存在不同地電位和分裂的接地回路的互連。兩種情形都是采用隔離來避免電流流過,而允許兩
點(diǎn)之間有數(shù)據(jù)或功率傳送。隔離應(yīng)用涉及高電壓、高速/高精度通信、或者長(zhǎng)距離通信。普通
的例子如工業(yè)IO系統(tǒng)、傳感器接口、電源/調(diào)節(jié)桿,發(fā)動(dòng)機(jī)控制/驅(qū)動(dòng)系統(tǒng)以及儀器儀表。
早期的設(shè)計(jì)除使用變壓器之外,還使用各種模擬隔離放大器,將工廠地面的傳感器電路與
控制室內(nèi)的信號(hào)處理系統(tǒng)進(jìn)行隔離。在通道數(shù)量有限及信號(hào)帶寬小的應(yīng)用中,目前仍在采用這些放大器。隔離放大器雖然具有高可靠性和高精度,但受限于信號(hào)帶寬50kHz。 其老舊的技
術(shù)要求較小+4V的電源,不支持目前的3V及以下的低電壓應(yīng)用。此外,其制造過程涉及輸入
和輸出部分單獨(dú)制作,異常電路匹配的激光微調(diào),以及在兩部分間安裝隔離電容,使這些器件
相當(dāng)昂貴。
工業(yè)自動(dòng)控制中的許多數(shù)據(jù)采集系統(tǒng)采用多輸入通道模數(shù)轉(zhuǎn)換器(ADC)捕獲多個(gè)模擬輸入
的輸入數(shù)據(jù)(被測(cè)物理量)。6ES5440-8MA22 絕大多數(shù)A-SADC都具有串行接口來減小封裝尺寸和占板面積。串
行接口的復(fù)雜性在于需要的慢速控制信號(hào)數(shù)不同,如片選、功率降低、增益及速度設(shè)定以及多
路器尋址。不過,所有串行接口都具有時(shí)鐘信號(hào)和輸出數(shù)據(jù)(轉(zhuǎn)換)高速傳輸線。因?yàn)樾?br>號(hào)獲取和調(diào)理發(fā)生在ADC內(nèi)部,將傳感器電路與信號(hào)處理電路隔離的較佳位置是在采用數(shù)字
隔離器的數(shù)字接口處。如前所述,因?yàn)榻涌趶?fù)雜,隔離器必須能夠傳輸高速ADC 轉(zhuǎn)換,
同時(shí)也要能傳輸?shù)退倏刂菩盘?hào)。
圖是基于一種電容性隔離屏障技術(shù)的隔離器。6ES5440-8MA22 此器件由兩個(gè)數(shù)據(jù)通道組成:一個(gè)是高頻
通道(HF),帶寬從100 kHz到150MHz;另一個(gè)是低頻通道(LF),覆蓋范圍從100 kHz到直
流。
原則上來說,一個(gè)單端輸入信號(hào)進(jìn)入HF通道之后被輸入端的非門分離為一-微分信號(hào)。隨
后的電容電阻網(wǎng)絡(luò)將此信號(hào)微分為瞬變信號(hào),然后再通過兩個(gè)比較器轉(zhuǎn)換成微分脈沖。比較器
輸出驅(qū)動(dòng)一個(gè)‘或非門跳轉(zhuǎn),其輸出進(jìn)入一-輸出多路器。跳轉(zhuǎn)的輸出驅(qū)動(dòng)處的一-精密邏輯(DCL)
測(cè)量信號(hào)瞬變之間的間隔。如果兩個(gè)連續(xù)瞬變的間隔**過某- -時(shí)間限(如在低頻率信號(hào)時(shí)),
DCL驅(qū)使輸出多路器從高頻通道轉(zhuǎn)向低頻通道。因?yàn)榈皖l輸入信號(hào)需要內(nèi)部電容為受限制的
大容量值,這些信號(hào)用一內(nèi)部振蕩器的載波頻率進(jìn)行寬調(diào)制,這樣,得到能通過容性屏障的高
頻信號(hào)。調(diào)制輸入時(shí),需要一個(gè)低通濾波器(LPF)將高頻載波從實(shí)際數(shù)據(jù)中除掉,然后再到達(dá)
輸出多路器。圖2和圖3給出了高頻通道和低頻通道及相應(yīng)的代表性波形。
6ES5095-8FA02 6ES5490-8MA13 6ES5947-3UA21 6GK1704-1TE02-3AA0 6GK1105-1AA00 6GK1701-1TW00-3MA0 6GK1906-1BB00 6GK1906-1JB01
6ES5095-8FB01 6ES5490-8MB11 6ES5947-3UA22 6GK1901-1BB20-2AE0 6GK1105-2AA00 6GK1701-1TW50-3AA0 6GK1140-0AA00 6GK7080-1AA02-8AA0
6ES5095-8MA01 6ES5490-8MB21 6ES5946-3UA23 6GK1971-2DS01-0AA2 6GK1105-2AA10 6GK1701-1TW52-3AA0 6GK1704-1CF20-3AA0 6GK1713-5FB61-3AA0
6ES5095-8MA02 6ES5491-8AA11 6ES5946-3UR11 6GK1704-1TE20-3AA0 6GK1105-2AB00 6GK1701-5AB10-0EA3 6GK1906-1CA00 6GK1907-0AF00-0AA0
6ES5095-8MA03 6ES5497-8EA11 6ES5946-3UR21 6GK1901-1BE00-0AA0 6GK1105-2AB10 6GK1702-2SA00-0EA0 6GK1140-0AB00 6GK7080-1AA02-8BA0
6ES5095-8MA04 6ES5497-8MA11 6ES5946-3UA11 6GK1971-2DS01-0AA3 6GK1105-2AC00 6GK1702-5CA41-0EA0 6GK1704-1CG02-3AA0 6GK1713-5FB62-3AA0
6ES5095-8MB01 6ES5497-8MB11 6ES5946-3UA21 6GK1704-1TF02-3AA0 6GK1105-2AC10 6GK1702-5CW00-3MA0 6GK1906-1CA01 6GK1907-0DB10-6AA3
6ES5095-8MB02 6ES5521-8MA21 6ES5946-3UA22 6GK1901-1FC00-0AA0 6GK1105-2AD00 6GK1702-5CW50-3AA0 6GK1140-0AC00 6GK7080-1AA02-8BA0
6ES5095-8MB03 6ES5521-8MA22 6ES5928-3UB11 6GK1971-2DS01-0AA4 6GK1105-2AD10 6GK1702-5CW52-3AA0 6GK1704-1CG02-3AA4 6GK1716-0HB00-3MA0
6ES5095-8MB04 6ES5521-8MB11 6ES5928-3UB12 6GK1704-1TF02-3AA4 6GK1105-2AE00 6GK1702-5DA41-0EA0 6GK1906-1CA02 6GK1907-0DC10-6AA3
6ES5095-8MC01 6ES5521-8MB12 6ES5928-3UB21 6GK1901-1GA00 6GK1105-3AA00 6GK1702-5DW00-3MA0 6GK1140-0BA00 6GK7443-5FX01-0XE0
6ES5095-8MC02 6ES5541-8AA11 6ES5928-3UA11 6GK1971-2SA01-0AA0 6GK1105-3AA10 6GK1702-5DW50-3AA0 6GK1704-1CG20-3AA0 6GK1716-0HB13-3AA0
6ES5095-8MC03 6ES5605-0UB12 6ES5928-3UA12 6GK1704-1TF20-3AA0 6GK1105-3AB00 6GK1702-5DW52-3AA0 6GK1906-1CB00 6GK1907-0FC10-0AA5
6ES5095-8MD01 6ES5700-8EA11 6ES5928-3UA21 6GK1901-1GB00 6GK1105-3AB10 6GK1702-5FA41-0EA0 6GK1140-0BA00-1AA0 6GK7443-5FX02-0XE0
6ES5095-8MD02 6ES5700-8FA11 6ES5922-3UA11 6GK1971-2SA01-0AA1 6GK1105-3AC00 6GK1702-5FW00-3MA0 6GK1704-1CU02-3AA4 6GK1716-0HB14-3AA0
6ES5095-8MD03 6ES5700-8MA11 6ES5923-3UA11 6GK1704-1TG02-3AA0 6GK1105-4AA00 6GK1702-5FW50-3AA0 6GK1906-1CC00 6GK1908-0DC10-6AA3
6ES5095-8ME01 6ES5700-8MA21 6ES5923-3UC11 6GK1901-1GB01 6GK1110-0AA00 6GK1702-5FW52-3AA0 6GK1140-1NA00 6GK7830-1BA01-0YA0
6ES5102-8MA02 6ES5700-8MA22 6ES5895-3SE32 6GK1971-2SA01-0AA2 6GK1110-1AA00 6GK1702-5PA41-0EA0 6GK1704-1CU20-3AA4 6GK1716-0HB14-3AA4
6ES5103-8MA01 6ES5700-8MB11 6ES5921-3UA11 6GK1704-1TG02-3AA4 6GK1110-1AA01 6GK1702-5PW00-3MA0 6GK1906-1DA00 6GK1921-0AA00-0AA0
6ES5103-8MA03 6ES5700-8MB21 6ES5921-3UA12 6GK1901-2AA00-0AA0 6GK1132-0AC00 6GK1702-5PW50-3AA0 6GK1141-0AA00 6GK7830-1BA01-0YA1
6ES5262-8MA11 6ES5706-8CB61 6ES5895-3SE11 6GK1971-2SA01-0AA4 6GK1132-0AD00 6GK1702-5PW52-3AA0 6GK1704-1CW00-3MA0 6GK1716-0HB60-3AA0
6ES5262-8MA12 6ES5706-8CD21 6ES5895-3SE12 6GK1704-1TG20-3AA0 6GK1140-0AA00 6GK1703-0AB00-0BA0 6GK1906-1EA00 6GK1921-0AA01-0AA0
6ES5262-8MA13 6ES5710-8MA11 6ES5895-3SE22 6GK1901-5JB00 6GK1140-0AB00 6GK1703-0AE00-0BA0 6GK1141-1AA00 6GK7830-1BA01-0YA4
6ES5262-8MB12 6ES5710-8MA21 6ES5895-3SD11 6GK1971-3DA00-0AA0 6GK1140-0AC00 6GK1703-0AH00-0BA0 6GK1704-1CW30-3AA0 6GK1716-0HB60-3AA4
6ES5262-8MB13 6ES5710-8MA31 6ES5895-3SD21 6GK1704-1TU02-3AA4 6GK1140-0BA00 6GK1703-0AK00-0BA0 6GK1906-1FA00 6GK1921-0AB01-0AA0
6ES5263-8MA11 6ES5710-8MA41 6ES5895-3SD31 6GK1901-8AB00-0AA0 6GK1950-1BA00 6GK1703-1AA00-0BA0 6GK1141-3AT00 6GK7830-1BC02-0YA0
6ES5263-8MA13 6ES5712-8AF00 6ES5895-0BS21 6GK1971-3DA00-0AA1 6GK1140-1NA00 6GK1703-1AC00-0EA0 6GK1704-1CW33-3AA0 6GK1716-0HB61-3AA0
6ES5264-8MA11 6ES5712-8BC50 6ES5895-0BS22 6GK1704-1TU20-3AA4 6GK1141-0AA00 6GK1703-1AD00-0EA0 6GK1906-1GA00 6GK1950-0AA06
6ES5264-8MA12 6ES5712-8BF00 6ES5895-0BS31 6GK1901-8AB01-0AA0 6GK1141-1AA00 6GK1703-1AE00-3AA0 6GK1143-0AA01 6GK7830-1BC02-0YA4
6ES5265-8MA01 6ES5712-8CB00 6ES5848-8CP21 6GK1971-5CA00-0AA1 6GK1141-3AT00 6GK1716-1PB00-3MA0 6GK1704-1CW33-3BA0 6GK1716-0HB61-3AA4
6ES5266-8MA11 6ES5722-1BB00 6ES5848-8SM01 6GK1704-1VW01-0AA0 6GK1143-0AA01 6GK1140-0BA00-1AA0 6GK1906-1HA00 6GK1950-0AA07
6ES5267-8MA11 6ES5725-2AC01 6ES5895-0BS11 6GK1905-0AA00 6GK1143-0AB01 6GK1704-0AA00-3AA2 6GK1143-0AB01 6GK7830-1BC02-2YX0
6ES5315-8MA11 6ES5728-8MA11 6ES5848-6GC31 6GK1971-5DA00-0AA0 6GK1143-0TA02 6GK1704-1CW60-3AA0 6GK1716-0HB62-3AA0
6ES5316-8FA12 6ES5735-8BB00 6ES5848-8CP01 6GK1704-5CW00-3MA0 6GK1143-0TB01 6GK1906-1JA00 6GK1950-0AA08
6ES5316-8MA12 6ES5735-8BC50 6ES5848-8CP11 6GK1905-0AB00 6GK1147-0AA10 6GK1143-0TA02 6GK7830-5BA02-0YA0
6ES5330-8MA11 6ES5782-8MA12 6ES5848-1CP01 6GK1971-5DA00-0AA1 6GK1147-1AA10 6GK1704-1CW61-3AA0 6GK1716-0HB62-3AA4
6ES5375-0LC11 6ES5788-8MA11 6ES5848-6GC11 6GK1704-5CW50-3AA0 6GK1147-3MA00 6GK1716-1PB21-3AA0 6GK1906-1JB00 6GK1950-0AB08
6ES5375-0LC21 6ES5788-8MK11 6ES5848-6GC21 6GK1905-0AB10 6GK1147-5AA01 6GK1950-1BB00 6GK1143-0TB01 6GK7830-5BA02-0YA1
6ES5375-8LA11 6ES5840-4SH01 6ES5835-8MD01 6GK1972-1AA05-0AA0 6GK1147-5MA00 6GK1704-0AA02-3AA0 6GK1704-1CW61-3AA0 6GK1716-1CB00-3MA0
6ES5375-8LA12 6ES5840-6SG01 6ES5835-8MD21 6GK1704-5CW53-3AA0 6GK1147-6MA01 6GK1716-1PB60-3AA0 6GK1906-1JB01 6GK1950-0AC08
6ES5375-8LC11 6ES5897-8QF01 6ES5835-8MD31 6GK1905-0AC00 6GK1151-1AA00 6GK1950-1BC00 6GK1147-0AA10 6GK7830-5BA02-0YA4
6ES5375-8LC21 6ES5930-8MD11 6ES5835-3SD11 6GK1972-1AA05-0AA1 6GK1151-2AA00 6GK1704-0AA03-3AA0 6GK1704-1CW62-3AA0 6GK1716-1CB21-3AA0
6ES5380-8MA11 6ES5931-8MD11 6ES5835-3SD21 6GK1704-5CW60-3AA0 6GK1151-5AA00 6GK1716-1PB61-3AA0 6GK1907-0AF00-0AA0 6GK1950-1AA00
6ES5385-8MA11 6ES5935-8ME11 6ES5835-3SD31 6GK1905-0AD00 6GK1161-2AA00 6GK1950-1BD00 6GK1147-1AA10 6GK7830-5BA03-0YA0
6ES5385-8MB11 6ES5950-8MD11 6ES5760-0AB11 6GK1972-7AA02-0AA0 6GK1161-3AA00 6GK1704-0AA04-3AA0 6GK1704-1CX00-3MA0 6GK1716-1CB60-3AA0
6ES5420-8MA11 6ES5980-0MA11 6ES5760-0HA11 6GK1704-5CW60-3MA0 6GK1210-0SA00 6GK1716-1PB62-3AA0 6GK1907-0DB10-6AA3 6GK1950-1AB00
6ES5421-8MA12 6ES5980-3BC41 6ES5760-1AA11 6GK1905-0AE00 6GK1210-0SB00 6GK1950-1BE00 6GK1147-3MA00 6GK7830-5BC03-0YA0
6ES5422-8MA11 6ES5980-3BC61 6ES5752-0AA62 6GK1975-0AA00 6GK1210-1SA00 6GK1704-0AA05-3AA0 6GK1704-1CX30-3AA0 6GK1716-1CB61-3AA0
6ES5430-8MB11 6ES5981-8MA11 6ES5758-1AA11 6GK1704-5CW61-3AA0 6GK1210-1SB00 6GK1716-1TB00-3MA0 6GK1907-0DC10-6AA3 6GK7830-5BC03-0YA4
6ES5430-8MC11 6ES5981-8MB11 6ES5760-0AA11 6GK1905-0AF00 6GK1241-3SA00 6GK1950-1BF00 6GK1147-5AA01 6GK7830-5BC03-2YX0
6ES5430-8MD11 6ES5988-3NB11 6ES5752-0AA43 6GK1975-0AA01 6GK1243-0SA10 6GK1704-0AA06-3AA0 6GK1704-1HW62-3AA0 6GK1716-1CB62-3AA0
6ES5431-8FA11 6ES5988-3NB41 6ES5752-0AA52 6GK1704-5CW62-3AA0 6GK1243-0SA20 6GK1716-1TB21-3AA0 6GK1907-0FC10-0AA5
6ES5431-8MA11 6ES5998-0CN11 6ES5752-0AA53 6GK1905-0BA00 6GK1243-3SA00 6GK1950-1BG00 6GK1147-5MA00 6GK1100-0AA00
6ES5431-8MC11 6ES5988-3LB11 6ES5752-0AA12 6GK1975-0AA02 6GK1288-0SA10 6GK1704-0AA07-3AA0 6GK1704-1LW00-3MA0 6GK1701-1PW52-3AA0
6ES5431-8MD11 6ES5988-3LB21 6ES5752-0AA22 6GK1704-5DW00-3MA0 6GK1288-0SA15 6GK1716-1TB60-3AA0 6GK1908-0DC10-6AA3 6GK1901-1BB20-2AA0
詞條
詞條說明
CPU備件6ES7412-1XJ05-0AB0CPU備件6ES7412-1XJ05-0AB0CPU備件6ES7412-1XJ05-0AB0主營(yíng):各品牌PLC 、DCS 系統(tǒng)備件 模塊〖⒈〗Allen-Bradley(美國(guó)AB)系列產(chǎn)品》〖⒉〗Schneider(施耐德電氣)系列產(chǎn)品》〖⒊〗General electric(通用電氣)系列產(chǎn)品》〖⒋〗Westinghouse(美國(guó)西屋)系列產(chǎn)品》〖⒌
PLC模塊SIMATIC S7-400|492-2BX00-0AA0標(biāo)簽紙
石化行業(yè)是的支柱產(chǎn)業(yè)。其生產(chǎn)線較長(zhǎng)、涉及面較廣,僅在石化集團(tuán)就有、成品油、天然氣等輸油、輸氣管道近上千公里,加油站幾萬個(gè),石化企業(yè)中的油田、采油廠、化工廠、加油站、輸油管線等遍布在全國(guó)各個(gè)城市和地區(qū)。自動(dòng)化技術(shù)是石化行業(yè)中重要的技術(shù)之一,西門子新一代集成電壓頻率比控制、矢量控制及伺服控制功能于一體的SINAMICS系列交流傳動(dòng)系統(tǒng)基于新的傳動(dòng)理念,采用眾多革新技術(shù)。其中西門子G120變頻器適用于中
6ES5440-8MA22 SIMATIC PLC Siemens
6ES5440-8MA22進(jìn)行隔離是防止電流在兩個(gè)通訊點(diǎn)之間流動(dòng)的一-種方法。-般在兩種情況下采用隔離:*-種情況是,在有可能存在損壞設(shè)備或危害人員的潛在的電流浪涌時(shí)。*二種情況是必須避免存在不同地電位和分裂的接地回路的互連。兩種情形都是采用隔離來避免電流流過,而允許兩點(diǎn)之間有數(shù)據(jù)或功率傳送。隔離應(yīng)用涉及高電壓、高速/高精度通信、或者長(zhǎng)距離通信。普通的例子如工業(yè)IO系統(tǒng)、傳感器接口、電源/調(diào)節(jié)桿,
S7-300, CPU模塊6ES7314-6BF00-0AB0
6ES7314-6BF00-0AB06ES7314-6BF00-0AB06ES7314-6BF00-0AB0SIMATIC S7-300, CPU 314C-2 PTP COMPACT CPU WITH MPI, 24 DI/16 DO, 4AI, 2AO, 1 PT100, 4 FAST COUNTERS (60 KHZ), INTEGRATED INTERFACE RS485, INTEGRA
公司名: 福建點(diǎn)碩自動(dòng)化設(shè)備有限公司
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公司名: 福建點(diǎn)碩自動(dòng)化設(shè)備有限公司
聯(lián)系人: 吳敏
手 機(jī): 18250762280
電 話:
地 址: 福建廈門海滄區(qū)鐘林里327號(hào)3102室
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網(wǎng) 址: fjds0006.b2b168.com