1771-SDN/ABPLC模塊
PLC對模擬量信號的識別是通過PLC的模擬量輸入輸出模塊來完成的。模擬量輸入輸出模塊采用A/D轉換原理，輸入端接收來自傳感器或變送器的模擬信號，輸出端輸出的模擬信號作用于PLC的控制對象。PLC診斷模擬量故障的過程，實質就是將在相應A/D通道讀到的監測信號的模擬量的實際值與系統允許的極限值相比較的過程。如果比較的結果是實際值遠離極限值，則表明軋鋼生產設備對應的受監控部位處于正常狀態，如果實際值接近或達到極限值，則為不正常狀態。判斷故障發生與否的極限值根據實際系統相應的參數變化范圍確定，利用PLC上的模擬量設定開關可精確設置該極限值。
1771-SDN/ABPLC模塊
1771-OP 120V AC PROTECTED OUTPUT MODULE
1771-OQC ISOLATED DC 24V 8 OUTPUTS IN 2'S,
1771-OQ16 OUTPUT MODULE
1771-OQ16K OUTPUT MODULE
1771-OR OR ISOLATED OUTPUT MOD,6 OUTPUTS, 220V AC
1771-OVN LOW TRUE INPUT MODULE, 32 INPUTS, 10-30V DC
1771-OW CONTACT OUTMOD,8 SELECT CONTACTS,NO/NC
1771-OW16 CONTACT OUTPUT
1771-OW16K CONTACT OUTPUT
1771-OWK CONTACT OUTPUT
1771-OWN CONTACT OUTPUT
1771-OWNA CONTACT OUTPUT
1771-OX OUTPUT MODULE
1771-OXK OUTPUT MODULE
1771-OYL CONTACT OUTPUT
1771-OZL CONTACT OUTPUT
1771-P1 PWR SUPPLY, 6.5A, 120/220VAC
1771-P2 PWR SUPPLY, 6.5A, 120/220V AC
1771-P3 POWER SUPPLY, 5V DC, 3A
1771-P4 POWER SUPPLY, 5V DC, 8A
1771-P5 POWER SUPPLY, SLOT, 8A, 24V DC
1771-P6 POWER SUPPLY, SLOT (ONE SLOT), 8A, 220V AC
1771-P7 POWER SUPPLY, 16A, 120/220V ACR SUPPLY
1771-PM CLUTCH/BRAKE MODULE (USED IN PAIRSH/BRAKE MODULE
1771-PS7 MULTIVOLTAGE RACK PWR SUPPLY, +5V DC BACKPLANE,
+-15V DC, +5V DC, +24V DC ISOLATED,POWER SUPPLY
1771-PSC POWER SUPPLY CHASSIS, 4 SLOTS CHASSIS
1771-QA POS MODULE
1771-QB LINEAR HYDRAULIC POSITIONING MODULEOSITIONING MODULE
1771-QRC DUEL RTE MTR MOD/SOLAR TURBI
1771-RT41 REMOTE PANEL
1771-RT44 REMOTE PANEL
1771-RTP1 REMOTE PANEL
1771-RTP3 REMOTE PANEL
1771-RTP4 REMOTE PANEL
1771-SDN SCANNER MODULE
1771-SN SUB INPUT/OUTPUT SCANNER MODULE
1771-SIM 8PT SIM MODULE%
1771-VHSC SPEED COUNTER
1771-WA FIELD WIRING ARM
1771-WB FIELD WIRING ARM
1771-WC FIELD WIRING ARM
1771-WD FIELD WIRING ARM
1771-WE FIELD WIRING ARM
1771-WF FIELD WIRING ARM
1771-WG FIELD WIRING ARM
1771-WH FIELD WIRING ARM
1771-WHF FIELD WIRING ARM
1771-WHFB FIELD WIRING ARM
1771-WI FIELD WIRING ARM
1771-WN FIELD WIRING ARM
