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VREL-11M PLCVREL-11M PLC
3.硬件濾波及軟件抗干擾措施。
信號在接入計算機前,在信號線與地間并接電容,以減少共模干擾;在信號兩極間加裝濾波器可減少差模干擾。
由于電磁干擾的復(fù)雜性,要根本消除干擾影響是不可能的,因此在PLC控制系統(tǒng)的軟件設(shè)計和組態(tài)時,還應(yīng)在軟件方面進行抗干擾處理,進一步提高系統(tǒng)的可靠性。常用的一些提高軟件結(jié)構(gòu)可靠性的措施包括:數(shù)字濾波和工頻整形采樣,可有效消除周期性干擾;定時校正參考點電位,并采用動態(tài)零點,可防止電位漂移;采用信息冗余技術(shù),設(shè)計相應(yīng)的軟件標(biāo)志位;采用間接跳轉(zhuǎn),設(shè)置軟件保護等。
BüRKERT 642292A, 653020, 147904,
SIEMENS 6GK5112-2BB00-2AA3 SCALANCE X112-2
SIEMENS 3TF6 844-0CM7
SIEMENS 6SE3 221-0DC40
SIEMENS MXG461B50-30
INA ZARF 40115-L-TN-A , 001683071,
BüRKERT 642292A, 653020, 147904,
SIEMENS 3TF6 844-0CM7
SIEMENS 6FC5 203-0AF26-0AA0-Z-Z
PHILIPS 940482200011, AIH 201
SIEMENS 6SE3 221-0DC40
SIEMENS MXG461B50-30
SIEMENS 6SE3 221-0DC40
SIEMENS 6FC5 210-0DA20-2AA1
SIEMENS MXG461B50-30
SIEMENS 6FC5 203-0AF26-0AA0-Z-Z
HPS 99B0346, elektropneumatisches
SIEMENS 6SC6 100-0NA21 SIMODRIVE 610
PHILIPS 940482200011, AIH 201
SIEMENS 6FC5 203-0AF26-0AA0-Z-Z
SEW EURODRIVE 8264236, MAS51A005-503-02
PHILIPS 940482200011, AIH 201
Siemens, 6AV7 861-3TB00-0AA0
SIEMENS 6FC5 210-0DA20-2AA1
MKS 99B0346,
HPS 99B0346,
SIEMENS 6SC6 100-0NA21 SIMODRIVE 610
OERLIKON LEYBOLD / SIEMENS 844235/001, 420-4CB
HPS 99B0346,
MKS 99B0346,
SEW EURODRIVE 8264236, MAS51A005-503-02
SIEMENS 6SC6 100-0NA21 SIMODRIVE 610
Schmersal 1206256, SLC 220-E/R0775-30-RFB,
MOELLER NZMH3-AE600-NA, IN=600A + NZM2/3-XUHIV
OERLIKON LEYBOLD / SIEMENS 844235/001, 420-4CB
SIEMENS 6FC5 210-0DA20-1AA0
SEW EURODRIVE 8264236, MAS51A005-503-02
Siemens, 6AV7 861-3TB00-0AA0
SIEMENS 6FC5 203-0AF00-0AA0
Siemens, 6AV7 861-3TB00-0AA0
BOSCH 0608720039 / 0 608820 072
BOSCH 0608720053 / 0 608820 071
SEW Eurodrive 8255814, Movitrac 310AH
Schmersal 1206256, SLC 220-E/R0775-30-RFB
MOELLER NZMH3-AE600-NA, IN=600A + NZM2/3-XUHIV 24V DC
SIEMENS 6FC5 210-0DA20-1AA0