● 同類型輸入或輸出的模塊按順序進(jìn)行編制。 ● 數(shù)字量模塊總是保留以8位（1個(gè)字節(jié)）遞增的映象寄存器空間。如果模塊沒有給保留字節(jié)中每一位提供相應(yīng)的物理點(diǎn)，那些未用位不能分配給I/O鏈中的后續(xù)模塊。對于輸入模塊，這些保留字節(jié)中未使用的位會(huì)在每個(gè)輸入刷新周期中被清零。 ● 模擬量I/O點(diǎn)總是以兩點(diǎn)遞增的來分配空間。如果模塊沒有給每個(gè)點(diǎn)分配相應(yīng)的物理點(diǎn)，則這些I/O點(diǎn)會(huì)消失并且不能夠分配給I/O鏈中的后續(xù)模塊。 ● 實(shí)數(shù)的格式 實(shí)數(shù)（浮點(diǎn)數(shù)）由32位單精度數(shù)表示，其格式按照ANSI/IEEE 754-1985中所描述的形式。實(shí)數(shù)按照雙字長度來存取。對于S7-200來說，浮點(diǎn)數(shù)到小數(shù)點(diǎn)后第六位。因而當(dāng)使用一個(gè)浮點(diǎn)數(shù)常數(shù)時(shí)，多可以到小數(shù)點(diǎn)后第六位。
武漢達(dá)自動(dòng)化設(shè)備有限公司
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2、日出東海落西山，愁也，喜也；遇事不鉆牛角尖，人也舒坦，心也舒坦。
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)
99、你在一生中，可以有所作為的時(shí)候只有一次。那就是現(xiàn)在，然而，許多人卻在悔恨過去和擔(dān)憂未之中浪費(fèi)了大好時(shí)光。
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
1、各種輸出之間的比較 （1）繼電器輸出： 優(yōu)點(diǎn)是不同公共點(diǎn)之間可帶不同的交、直流負(fù)載，且電壓也可不同，帶負(fù)載電流可達(dá)2A／點(diǎn)；但繼電器輸出不適用于高頻的負(fù)載，這是由繼電器的壽命決 定的。其壽命隨帶負(fù)載電流的而，一般在幾十萬次至Jl百萬次之間，有的公司產(chǎn)品可達(dá)1000萬次以上，響應(yīng)時(shí)間為10ms。 （2）晶閘管輸出： 帶負(fù)載能力為0.2A/點(diǎn)，只能帶交流負(fù)載，可適應(yīng)高頻，響應(yīng)時(shí)間為1ms。 （3）晶體管輸出： 大優(yōu)點(diǎn)是適應(yīng)于高頻，響應(yīng)時(shí)間短，一般為0.2ms左右，但它只能帶 DC 5—30V的負(fù)載，大輸出負(fù)載電流為0．5A/點(diǎn)，但每4點(diǎn)不得大于0.8A。 當(dāng)你的輸出為每分鐘6次以下時(shí)，應(yīng)繼電器輸出，因其電路設(shè)計(jì)簡單，抗和帶負(fù)載能力強(qiáng)。當(dāng)為10次／min以下時(shí)，既可采用繼電器輸出；也可采用PLC輸出驅(qū)動(dòng)達(dá)林頓三極管（5—10A），再驅(qū)動(dòng)負(fù)載，可大大減小。
武漢達(dá)自動(dòng)化設(shè)備有限公司
