1746-BAS

1746-BAS/////////////////1746-BAS

1746-BAS

 廈門(mén)航拓電氣有限公司

*系統(tǒng)供電設(shè)計(jì)  供電系統(tǒng)的保護(hù)措施．電源模塊的選擇 I／0模塊供電電源設(shè)計(jì)  系統(tǒng)接地設(shè)計(jì)6. 可編程序控制器供電系統(tǒng)設(shè)計(jì)7.  電纜設(shè)計(jì)*和敷設(shè)延時(shí)中斷OB 20 ——西門(mén)子S7-300PLC組織塊OB及其應(yīng)用由調(diào)用SFC 32啟動(dòng)．調(diào)用SFC 32時(shí)要提供實(shí)參。OB-NR 延時(shí)中斷OB*的號(hào)碼DTIME 延時(shí)長(zhǎng)度（1至60000ms）SIGN 延時(shí)OB被調(diào)用時(shí)進(jìn)入OB的啟動(dòng)信息標(biāo)志器RET-VAL OB 執(zhí)行過(guò)程中發(fā)生錯(cuò)誤時(shí)的錯(cuò)**誤代碼處理延時(shí)中斷的SFCSFC32 
   *SRT_TINT    啟動(dòng)延時(shí)中斷  SFC33    
*CAN_DINT    取消延時(shí)中斷SFC34    
*QRY_TINT    查詢延時(shí)中斷

以常用的級(jí)精度的電流電壓變送器為例，從以下方法著手來(lái)辨別真假優(yōu)劣。
(1)基準(zhǔn)要穩(wěn),4ma是對(duì)應(yīng)的輸入零位基準(zhǔn)，基準(zhǔn)不穩(wěn)，談何精度線性度，冷開(kāi)機(jī)3分鍾內(nèi)4ma的零位漂移變化不超過(guò)%以內(nèi);(即),負(fù)載250ω上的壓降為，國(guó)外ic心片多用昂貴的能隙基準(zhǔn)，溫漂系數(shù)每度變化10ppm;
(2)內(nèi)電路總計(jì)消耗電流<4ma,加整定后等于,而且有源整流濾波放大恒流電路不因原邊輸入變化而消耗電流也隨之變化，國(guó)外ic心片采用恒流供電;
(3)當(dāng)工作電壓時(shí),滿量程時(shí),滿量程的讀數(shù)不會(huì)因負(fù)載0-700ω變化而變化;變化不超過(guò)%以內(nèi)
(4)當(dāng)滿量程時(shí),負(fù)載250ω時(shí),滿量程的讀數(shù)不會(huì)因工作電壓變化而變化;變化不超過(guò)%以內(nèi);
(5)當(dāng)原邊過(guò)載時(shí)，輸出電流不超過(guò)+10%以內(nèi)，否則plc/dcs內(nèi)供變送器用的24v工作電源和a/d輸入箝位電路因功耗過(guò)大而損壞，另外變送器內(nèi)的射隨輸出亦因功耗過(guò)大而損壞，無(wú)a/d輸入箝位電路的更遭殃;
(6)當(dāng)工作電壓24v接反時(shí)不得損壞變送器,必須有極性保護(hù);
(7)當(dāng)兩線之間因感應(yīng)雷及感應(yīng)浪涌電壓超過(guò)24v時(shí)要箝位,不得損壞變送器;一般在兩線之間并聯(lián)1-2只tvs瞬態(tài)保護(hù)二極管 可抑制每20秒間隔一次的20毫秒脈寬的正反脈沖的沖擊,瞬態(tài)承受沖擊功率;
(8)產(chǎn)品標(biāo)示的線性度%是誤差還是相對(duì)誤差,可以按以下方法來(lái)辨別方可一目了然:符合下述指標(biāo)是真的線性度%.

 P0914XQ FBM214
 P0922VU FBM215
 P0922VV FBM216
 P0914TR FBM217
 P0922VW FBM218
 P0916RH FBM219
 P0917HA FBM220
 P0917HB FBM221
 P0917HD FBM223
 P0926GG FBM224
 P0922QS FBM228
 P0926GU FBM230
 P0917GZ FBM240
 P0914TG FBM241
 P0914WK FBM241b
 P0914WM FBM241c
 P0914WP FBM241d
 P0916TA FBM242
 P0914TK FBM243
 P0914XN FBM246

 Tricon version 3701  Analog Input Module, 0 – 10 V,  Differential,DC Coupled, TMR 
 Tricon version 3700A  Analog Input Module, 0 – 5 V,  Differential,DC coupled, TMR 
 Tricon version 3703E  Analog Input Module, 0 – 5 V or 0 – 10 V,Differential, Isolated, TMR 
 Tricon version 3704E  Analog Input Module, 0 – 5 V or 0 – 10 V,High-Density,Differential, DC Coupled, TMR 
 Tricon version 3706A  Non Isolated Thermocouple Module,Differential, DC Coupled, TMR 
 Tricon version 3708E  Isolated Thermocouple Module, Differential, TMR 
 Tricon version 3806  Analog Output Module, 4 – 20 & 16 – 320 mA,  Current Loop, DC Coupled, TMR 
 Tricon version 3805E  Analog Output Module, 4 – 20 mA,Current loop, DC Coupled, TMR 
 Tricon version 3501E  Digital Input Module, 115 VAC/VDC, 
 Tricon version 3501T  Opto-Isolated, Non-Commoned, TMR 
 Tricon version 3503E  Digital Input Module, 24 VAC/VDC,Commoned in groups of 8, Self-test, TMR 
 Tricon version 3505E  Digital Input Module, 24 VDC,Low threshold with self-test, Commoned, TMR 
 Tricon version 3564  Digital Input Module, 24 VDC,Opto-Isolated, Commoned, Single 
 Tricon version 3504E  Digital Input Module, 24 or 48 VDC,High density, DC Coupled, TMR 
 Tricon version 3502E  Digital Input Module, 48 VAC/VDC,Commoned in groups of 8, Self-test, TMR 
 Tricon version 3511  Pulse Input Module, Differential,AC Coupled, TMR 
 Tricon version 3515  Pulse Totalizer Input Module,Opto-Isolated, Non-commoned, TMR 
 Tricon version 3601E  Digital Output Module, 115 VAC, 
 Tricon version 3601T  Opto-Isolated, Non-Commoned, TMR 
 Tricon version 3611E  Digital Output Module, 115 VAC,Galvanically Isolated,Commoned,Supervised, TMR 
 Tricon version 3603E  Digital Output Module, 120 VDC, 
 Tricon version 3603T  Opto-Isolated, Commoned, TMR 
 Tricon version 3623  Digital Output Module, 120 VDC, 
 Tricon version 3623T  Opto-Isolated, Commoned, Supervised, TMR 
 Tricon version 3664  Dual Digital Output Module, 24 VDC, 
 Tricon version 3674  Opto-Isolated, Commoned, Dual 
 Tricon version 3624  Digital Output Module, 24 VDC,Opto-Isolated, Commoned, Tricon version Supervised, TMR 
 Tricon version 3604E  Digital Output Module,24 VDC,Opto-Isolated, Non-commoned, TMR 
 Tricon version 3607E  Digital Output Module,48 VDC,Opto-Isolated, Non-commoned, TMR 
 Tricon version 3617E  Digital Output Module,48 VDC,Galvanically Isolated, Commoned, Supervised, TMR 
 Tricon version 3636R  Relay Output Module,Normally Open, Non-triplicated 
 Tricon version 4609  Advanced Communication Module (ACM)Foxboro I/A Series, Interface 
 Tricon version 4119A  Enhanced Inligent Communication (EICM) Isolated 
 Tricon version 4509  Hiway Interface Module (HIM)Honeywell TDC 3000, Hiway Gateway Interface 
 Tricon version 4329  Network Communication Module (NCM) 802.3 Port
 Tricon version 4409  Safety Manager Module (SMM) Honeywell TDC 3000, UCN Interface 
 Model  Product Name
 Tricon version 4200-3  Primary Module (RXM), Multi-mode Modules (3)
 Tricon version 4201-3  Remote Module (RXM), Multi-mode Modules (3)
 Tricon version 4210-3  Primary Module (SRXM), Single-mode Modules (3)
 Tricon version 4211-3  Remote Module (SRXM), Single-mode Modules (3)
 Tricon version 5351  Analog Input TriPak 1 
 Tricon version 5352  Analog Input RTD/TC/4-20 mA TriPak 1