（2）矩陣輸入 如圖2所示為4×4矩陣輸入電路，它使用PLC的四個輸入點（X000～X003）和四個輸出點（Y000～Y003）來實現(xiàn)16個輸入點的功能，特別適合PLC輸出點多而輸入點不夠的。當Y000導(dǎo)通時，X000～X003接受的是Q1～Q4送來的輸入；當Y001導(dǎo)通時，X000～X003接受的是Q5～Q8送來的輸入；當Y002導(dǎo)通時，X000～X003接受的是Q9～Q12送來的輸入；當Y003 導(dǎo)通時，X000～X003接受的是Q13～Q16送來的輸入。將Y000的常開點與X000～X003串聯(lián)即為輸入Q1～Q4；將Y1的常開點與X000～X003串聯(lián)即為輸入Q5～Q8；將Y002的常開點與X000～X003串聯(lián)即為輸入Q9～Q12；將Y003的常開點與X000～X003串聯(lián)即為輸入Q13～Q16。
武漢達自動化設(shè)備有限公司
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48、付出真心，才會真心，卻可能傷的徹底；保持距離，才能保護自己，卻注定永遠。
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)
151、四海翻騰怒，五洲震蕩風(fēng)雷激
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
PLC機型選擇的基本原則是：在功能要求的前提下，選擇可靠、使用方便以及性能價格比優(yōu)的機型。通常做法是，在工藝比較固定、條件的，建議選用整體式結(jié)構(gòu)的PLC；其他情況則好選用模塊式結(jié)構(gòu)的 PLC；對于開關(guān)量控制以及以開關(guān)量控制為主、帶少量模擬量控制的工程項目中，一般其控制速度無須考慮，因此，選用帶 A/D轉(zhuǎn)換、D/A轉(zhuǎn)換、加減運算、數(shù)據(jù)傳送功能的低檔機就能要求；而在控制比較復(fù)雜，控制功能要求比較高的工程項目中（如要實現(xiàn)PID運算、閉環(huán)控制、通信聯(lián)網(wǎng)等），可視控制規(guī)模及復(fù)雜程度來選用中檔或機（其中機主要用于大規(guī)?？刂啤⑷玃LC的分布式控制以及整個工廠的自動化等）。根據(jù)不同的應(yīng)用對象，表1列出了PLC的幾種功能選擇。
武漢達自動化設(shè)備有限公司
