1747-L524/AB智能制造
純硬件冗余的優(yōu)點(diǎn)之一,就是不需要軟件進(jìn)行專門的編程,CPU的狀態(tài)監(jiān)視和控制權(quán)的轉(zhuǎn)移是由兩個(gè)熱備模塊來(lái)完成的。而軟件冗余中兩個(gè)CPU模塊的狀態(tài)監(jiān)視和控制權(quán)的轉(zhuǎn)移是通過(guò)軟件編程解決的。因此,軟件冗余編程相對(duì)比較復(fù)雜,工作量較大。
綜合考慮以上因素,本熔鹽爐自動(dòng)系統(tǒng)采用軟件方式實(shí)現(xiàn)PLC的雙CPU冗余控制。兩塊CPU模塊同時(shí)在系統(tǒng)中運(yùn)行,一塊運(yùn)行于主控模式,另一塊運(yùn)行于熱備份模式。當(dāng)其中任一塊CPU發(fā)生故障時(shí)另一塊CPU立即監(jiān)視到并發(fā)出報(bào)警,自動(dòng)將正常的CPU投入主控模式。CPU的無(wú)擾動(dòng)切換,使系統(tǒng)一直受控,確保了安全,同時(shí),使管道化生產(chǎn)線一直處于正常運(yùn)行的良好工況中。
1747-L524/AB智能制造
1747-CHORAD REMOTE ACCESS MODEM KIT
1747-CHORAD1 SINGLE DIAL-UP MODEM KIT FOR SLC50X
1747-CHORADC1B MODEM CABLE FOR SLC500 MODEM
1747-CP3 PROGRAMMER CABLE
1747-DCM DIRECT COMMUNICATION MODULE
1747-DTAM-E DATA TABLE ACCESS MODULE W/ENGLISH
1747-KE INTERFACE MODULE DH485/RS232C
1747-KFC15 CNET SERIAL INTERFACE MODULE
1747-L20A 20 I/O FIXED HARDWARE
1747-L20B 20 I/O FIXED HDWR STYLE (12) 120 V IN & 8 TRIAC OUT, AC LINE PWR,
1747-L20C 20 I/O FIXED HARDWARE
1747-L20D 20 I/O FIXED HARDWARE
1747-L20E 20 I/O FIXED HARDWARE
1747-L20F 20 I/O FIXED HARDWARE
1747-L20G 20 I/O FIXED HARDWARE
1747-L20L 20 I/O FIXED HDWR STYLE, 12 DC SOURCE IN W/ HSC & 8 TRANS. SINK OUT, AC LINE PWR,
1747-L20R 20 I/O FIXED HARDWARE
1747-L20P 20 I/O FIXED HARDWARE
1747-L30A 30 I/OFIXED HDWR STYLE, 18 120 V AC IN & 12 RELAY OUT, AC LINE PWR,
1747-L30B 30 I/OFIXED HDWR STYLE, 18 120 V AC IN & 12 RELAY OUT, AC LINE PWR,
1747-L40A 40 I/OFIXED HDWR STYLE, 18 120 V AC IN & 12 RELAY OUT, AC LINE PWR,
1747-L40B 40 I/O FIXED HDWR STYLE 24 120 V IN & 16 TRIAC OUT, AC LINE PWR,
1747-L40C 40 I/O FIXED HDWR STYLE 24 DC SINK IN W/HSC & 16 RELAY OUT, AC LINE PWR
1747-L40E 40 I/O FIXED HDWR STYLE 24 DC SINK IN W/HSC & 16 RELAY OUT, AC LINE PWR
1747-L40F 40 I/O FIXED HDWR STYLE 24 DC SINK IN W/HSC & 16 RELAY OUT, AC LINE PWR
1747-L40L 40 I/O FIXED HDWR STYLE 24 DC SINK IN W/HSC & 16 RELAY OUT, AC LINE PWR
1747-L40P 40 I/O FIXED HDWR STYLE 24 DC SINK IN W/HSC & 16 RELAY OUT, AC LINE PWR
1747-L511 SLC 5/01 CPU, 1K USR MEMORY
1747-L514 SLC 5/01 CPU, 4K USR MEMORY
1747-L524 SLC 5/02 CPU, 4K USR MEMORY
1747-L531 SLC 5/03
1747-L532 SLC 5/03 CPU, 12K USR INSTRUCT. CAPACITY
1747-L541 SLC 5/04
1747-L542 SLC 5/02 CPU, 4K USR MEMORY
1747-L542P 5/04P PROCESSER
1747-L543 CONTROLLER,64K MEMORY
1747-L551 CONTROLLER,64K MEMORY
1747-L552 CONTROLLER,64K MEMORY
1747-L553 CONTROLLER,64K MEMORY
1747-M1 EEPROM MEMORY MODULE,1K
1747-M11 SLC 5/03-5/04 EEPROM MEM MOD, 16K USR INSTRUCT,
1747-M12 MEMORY MODULE 1747-M2 EPROM FOR 4K USR INSTRUCTION
1747-M15 EEPROM MEMORY,FOR 1747-M11,12
1747-M2 EEPROM MEMORY,4K
1747-M3 EEPROM MEMORY,4K
1747-M4 EEPROM MEMORY,4K
1747-M5 ADAPTER SOCKET-PKG. 5
1747-NP1 WALL MOUNT PWR SUPPLY 120V AC INPUT
1747-NP2 GLOBAL DESK TOP PWR SUPPLY 85/285 V AC IN
1747-OCAPINT WINDOWS NT API FOR 1771-OC MODULE
1747-OCDPDE OC DOC SET/GERMAN
1747-OCDPES OC DOC SET/SPANISH
1747-OCDPFR OC DOC SET/FRENCH
1747-OCDPIT OC DOC SET/ITATIAN
1747-OCDR16 16 MB DRAM FOR 1747 OPEN CONTROLLER
1747-OCDR32 32 MB DRAM FOR 1747 OPEN CONTROLLER
1747-OCDR4 4 MB DRAM TO 1747 OPEN CONTROLLER
1747-OCENET ETHERNET(10/100 BASET)MODULE
1747-OCF 266 MHZ OPEN CONTROL PROCESSOR