簡單PLC的運算功能包括邏輯運算、計時和計數(shù)功能；普通PLC的運算功能還包括數(shù)據(jù)移位、比較等運算功能；較復(fù)雜運算功能有代數(shù)運算、數(shù)據(jù)傳送等；大型PLC中還有模擬量的PID運算和其他運算功能。隨著開放的出現(xiàn)，目前在PLC中都已具有通信功能，有些產(chǎn)品具有勇位機(jī)的通信，有些產(chǎn)品具有與同位機(jī)或機(jī)的通信，有些產(chǎn)品還具有與工廠或企業(yè)網(wǎng)進(jìn)行數(shù)據(jù)通信的功能。設(shè)計選型時應(yīng)從實際應(yīng)用的要求出發(fā)，合理選用所需的運算功能。大多數(shù)應(yīng)用，只需要邏輯運算和計時計數(shù)功能，有些應(yīng)用需要數(shù)據(jù)傳送和比較，當(dāng)用于模擬量檢測和控制時，才使用代數(shù)運算，數(shù)值轉(zhuǎn)換和PID運算等。要顯示數(shù)據(jù)時需要譯碼和編碼等運算。
武漢達(dá)自動化設(shè)備有限公司
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10P50400006 Emerson Rosemount Multi-Pure Control Processor II (10P50400006)
10P50840004 Emerson Rosemount Keyboard Interface with Video Isolator (10P50840004)
10P50870004 Emerson Rosemount Coordinator Processor IV+ (10P50870004)
10P52760001 Emerson Rosemount Tap Box A (10P52760001)
10P52790001 Emerson Rosemount Tap Box B (10P52790001)
10P53140001 Emerson Rosemount Communication Motherboard (10P53140001)
10P53200001 Emerson Rosemount PLC Interface Card Cage Assembly (10P53200001)
10P53240001 Emerson Rosemount Trackball (10P53240001)
10P53240011 Emerson Rosemount Trackball (10P53240011)
10P53330001 Emerson Rosemount RNI Ethernet/Peerway Interface (10P53330001)
10P53520006 Emerson Rosemount Discrete Field Interface Module (FIM) (10P53520006)
10P54040004 Emerson Rosemount Analog Input Field Interface Module (FIM) (10P54040004)
10P54080004 Emerson Rosemount Analog Output Field Interface Module (10P54080004)
10P54440002 Emerson Rosemount FIC 4-20 MA (10P54440002)
10P54470002 Emerson Rosemount FIC Pulse I/O (10P54470002)
10P54560001 Emerson Rosemount Communications Connect V (10P54560001)
10P54770001 Emerson Rosemount M/PT Analog Termination Panel (10P54770001)
10P54770002 Emerson Rosemount M/PT Analog Term Panel - Remote (10P54770002)
10P54880001 Emerson Rosemount Port I/O - RS422/RS232 Interface Module (10P54880001)
10P55270010 Emerson Rosemount OI-V Processor Module (10P55270010)
10P55290002 Emerson Rosemount FIC 4-20 MA (10P55290002)
10P56500001 Emerson Rosemount Controller Card File (10P56500001)
10P56910001 Emerson Rosemount Operator Keyboard Interface Card (10P56910001)
10P57070001 Emerson Rosemount Loop Power Module (10P57070001)
10P57520007 Emerson Rosemount MPC5 Controller Processor (10P57520007)
10P57700005 Emerson Rosemount Analog Input Field Interface Module (FIM) (10P57700005)
10P59150002 Emerson Rosemount Analog I/O Module (10P59150002)
18914-13 Emerson Rosemount RTD Input Module (18914-13) Alt# 55P0111X172
1984-1691-0050 Emerson Rosemount RGB Video Cable Set (3-Coax) (1984-1691-0050)
1984-2120-0008 Emerson Rosemount OI Processor Board (1984-2120-0008)
21860350 Emerson Rosemount Keyboard (21860350)
2186035E Emerson Rosemount Engineering Keyboard (2186035E)
70-OAC5A Grayhill AC Output Module (70-OAC5A)
CA-RTCKM11 Emerson Rosemount Replacement Call Up Keyboard Membrane (CA-RTCKM11) Alt# 01984-2372-00xx
CA-RTCS21 Emerson Rosemount Replacement RS3 Compatible Screen 21 (CA-RTCS21)
CA-RTEK11 Emerson Rosemount Replacement Enhanced RS3 Keyboard (CA-RTEK11)
CA-RTFDB11 Emerson Rosemount Replacement Flash Disk Board (CA-RTFDB11)
CA-RTFTB11 Emerson Rosemount Replacement Flash Tape Board (CA-RTFTB11)
CA-RTOKM11 Emerson Rosemount Replacement Operator Keyboard Membrane (CA-RTOKM11)
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CA-RTTB11 Emerson Rosemount Replacement Trackball (CA-RTTB11)
CA-RTTBM11 Emerson Rosemount Replacement Trackball Membrane (CA-RTTBM11) Alt# 01984-2372-00xx
CA-RTVP11 Emerson Rosemount Replacement RS3 Virtual Printer (CA-RTVP11)
CP6103X1-CA1 Emerson Rosemount Power Supply (CP6103X1-CA1)
LQ20019250 Emerson Rosemount Replacement Trackball for RS3 Operator Keyboards (LQ20019250)
OAC5 OPTO 22 AC Output Relay (OAC5)
PWA1362-0001 Emerson Rosemount Non-ISO & ISO Input/Output (PWA1362-0001)
PWA2543-001 Emerson Rosemount Communications Connector III (PWA2543-001)
PWA78894-01 Emerson Rosemount Monitor Extender (PWA78894-01)
PWA79056-01 Emerson Rosemount System Monitor Extender (PWA79056-01)
PWA79063-01 Emerson Rosemount Power Supply Extenders (PWA79063-01)
1756-A10
1756-A13
1756-A17
1756-A4
1756-A4LXT
1756-A5XT
1756-A7
1756-A7LXT
1756-A7XT
1756-BA1
1756-BA2
1756-BATA
1756-BATM
1756-CFM
1756-CN2
1756-CN2R
1756-CN2RXT
1756-CNB
1756-CNBR
1756-CP3
1756-CPR2
1756-DH485
1756-DHRIO
1756-DHRIOXT
1756-DMA31
1756-DMCF003
1756-DMD30
1756-DMD30K
1756-DMF30
1756-DMF30K
1756-DNB
1756-EN2F
1756-EN2T
1756-EN2TR
1756-EN2TXT
1756-EN3TR
1756-ENBT
1756-ECAP
1756-ECAPXT
1756-ENRM
1756-ENRMXT
1756-ENSE
1756-ENSEXT
1756-EWEB
1756-EXT
1756-HIST1G
1756-HIST1G3277
1756-HIST2G
1756-HIST2G3278
1756-HISTBETA
1756-HSC
1756-HYD02
1756-IA16
1756-IA16I
1756-IA32
1756-IA8D
1756-IB16
1756-IB16D
1756-IB16I
1756-IB16IF
1756-IB16ISOE
1756-IB32
1756-IC16
1756-IF16
■在拆裝前，應(yīng)先讓PLC通電15秒以上（這樣可樹為存儲器備用電源的電容器充電，在鋰電池斷開后，該電容可對PLC做短暫供電，以保護(hù)RAM 中的信息不丟失）； ■斷開PLC的交流電源； ■打開基本單元的電池蓋板； ■取下劇池，裝上新電池； ■蓋上電池蓋板。 注意更換電池時間要盡量短，一般不允許超過3分鐘。如果時間過長，RAM中的程序?qū)⑾А? 此外,應(yīng)注意更換絲時要采用型號的產(chǎn)品。 I/O模塊的更換 若需袒一個模塊，用戶應(yīng)確認(rèn)被安裝的模塊是同類型。有些I/O允許帶電更換模塊，而有些則需切斷電源。若袒荷解決問題，但在一相對較短時間后又發(fā)生故障，那么用戶應(yīng)檢查能產(chǎn)生電壓的感性負(fù)載，也許需要從外部其電流尖峰。如果絲在更換后易被燒斷，則有可能是模塊的輸出電流超限，或輸出設(shè)備被短路。
武漢達(dá)自動化設(shè)備有限公司
