描述
140CRP93100
開關(guān)量輸入／輸出
? ? 通過標(biāo)準(zhǔn)的輸入／輸出接口可從傳感器和開關(guān)（如按鈕、限位開關(guān)等）及控制（開／關(guān)）設(shè)備（如指示燈、報(bào)警器、電動(dòng)機(jī)起動(dòng)器等）接收信號。典型的交流輸入／輸出信號為24～240V，直流輸入／輸出信號為5～240V。
? ? 盡管輸入電路因制造廠家不同而不同，但有些特性是相同的。如用于消除錯(cuò)誤信號的抖動(dòng)電路；免于較大瞬態(tài)過電壓的浪涌保護(hù)電路等。此外，大多數(shù)輸入電路在高壓電源輸入和接口電路的控制邏輯部分之間都設(shè)有可選的隔離電路。
? ? 在評估離散輸出時(shí)，應(yīng)考慮熔絲、瞬時(shí)浪涌保護(hù)和電源與邏輯電路間的隔離電路。熔絲電路也許在開始時(shí)花費(fèi)較多，但可能比在外部安裝熔絲耗資要少。
? ? 模擬量輸入／輸出
? ? 模擬量輸入／輸出接口一般用來感知傳感器產(chǎn)生的信號。這些接口可用于測量流量、溫度和壓力，并可用于控制電壓或電流輸出設(shè)備。這些接口的典型量程為－10～＋10V、0～＋10V、4～20mA或10～50mA。
? ? 一些制造廠家在PLC上設(shè)計(jì)有特殊模擬接口，因而可接收低電平信號，如RTD、熱電偶等。一般來說，這類接口模塊可用于接收同一模塊上不同類型的熱電偶或RTD混合信號。
? ? 特殊功能輸人／輸出
? ? 在選擇一臺PLC時(shí)，用戶可能會(huì)面臨一些特殊類型且不能用標(biāo)準(zhǔn)I/O實(shí)現(xiàn)的I/O限定如定位、快速輸入、頻率等 。此時(shí)用戶應(yīng)當(dāng)考慮供銷廠商是否提供有特殊的有助于最大限度減小控制作用的模塊。有些特殊接口模塊自身能處理一部分現(xiàn)場數(shù)據(jù)，從而使CPU從耗時(shí)的任務(wù)處理中解脫出來。
? ? 智能式輸入／輸出
? ? 當(dāng)前，PLC的生產(chǎn)廠家相繼推出了一些智能式的輸入／輸出模塊。一般智能式輸入／輸出模塊本身帶有處理器，可對輸入或輸出信號作預(yù)先規(guī)定的處理，并將處理結(jié)果送入CPU或直接輸出，這樣可提高PLC的處理速度并節(jié)省存儲器的容量。
? ? 智能式輸入／輸出模塊有高速計(jì)數(shù)器（可作加法計(jì)數(shù)或減法計(jì)數(shù)）、凸輪模擬器（用作絕對編碼輸人）、帶速度補(bǔ)償?shù)耐馆喣M器、單回路或多回路的PID調(diào)節(jié)器、ASCII／BASIC處理器、RS—232C／422接口模塊等。表3歸納了選擇I/O模塊的一般規(guī)則。
PLC存儲器類型及容量選擇
? ? PLC系統(tǒng)所用的存儲器基本上由PROM、E-PROM及PAM三種類型組成，存儲容量則隨機(jī)器的大小變化，一般小型機(jī)的最大存儲能力低于6kB，中型機(jī)的最大存儲能力可達(dá)64kB，大型機(jī)的最大存儲能力可上兆字節(jié)。使用時(shí)可以根據(jù)程序及數(shù)據(jù)的存儲需要來選用合適的機(jī)型，必要時(shí)也可專門進(jìn)行存儲器的擴(kuò)充設(shè)計(jì)。
? ? PLC的存儲器容量選擇和計(jì)算的第一種方法是：根據(jù)編程使用的節(jié)點(diǎn)數(shù)精確計(jì)算存儲器的實(shí)際使用容量。第二種為估算法，用戶可根據(jù)控制規(guī)模和應(yīng)用目的，按照表4的公式來估算。為了使用方便，一般應(yīng)留有25%～30%的裕量，獲取存儲容量的最佳方法是生成程序，即用了多少字。知道每條指令所用的字?jǐn)?shù)，用戶便可確定準(zhǔn)確的存儲容量。表４同時(shí)給出了存儲器容量的估算方法。
ABC11D-H2111 Rack Yokogawa Centum XL 1
AIP552 AIP552 Module Yokogawa Centum XL 2
CP21*A CP21*A Processor Card, 2 MB Yokogawa Centum XL 4
CP333D CP333D Module Yokogawa Centum XL Ask
CP99A*A CP99A *A Processor Card Yokogawa Centum XL Ask
CPL-6 CPL-6 Module Yokogawa Centum XL 4
DP97*A DP97 *A Display Processor Card Yokogawa Centum XL Ask
DP97*B DP97 *B Display Processor Card Yokogawa Centum XL Ask
DX11*A DX11 *A Duplex Control Card Yokogawa Centum XL 2
FC11*A FC11 *A Duplex Control Card Yokogawa Centum XL 2
FC311 FC311 Module Yokogawa Centum XL 1
FC81*A FC81 *A HF Bus Comm Control Card Yokogawa Centum XL 2
IP91*A Communication Module Yokogawa Centum XL 1
NC4*B NC4* B Nest Common Card Yokogawa Centum XL 14
PS33*A PS33 *A Station Power Supply Card -117Vac Yokogawa Centum XL 6
PS62*A PS62 *A Power Supply Yokogawa Centum XL 1
PS63*A PS63 *A Power Supply Unit Yokogawa Centum XL Ask
PS71*A PS71 *A Power Supply Yokogawa Centum XL 1
PW301 PW301 Power Module Yokogawa Centum XL 2
SI11*B SI11*B Station Internal Communication Card Yokogawa Centum XL 3
AS S919 Keyboard-Video Module Yokogawa microXL Ask
CP81B*B MOPS – MOPL Processor Card Yokogawa microXL 2
CP81B*C MOPS – MOPL Processor Card Yokogawa microXL 1
CP81E*A CP81E *A MOPS – MOPL Processor Card Yokogawa microXL 1
DP88*A DP88 *A MOPS – MOPL Display Card Yokogawa microXL 3
DP88*C DP88 *C MOPS – MOPL Display Card Yokogawa microXL 1
DP88*D DP88 *D MOPS – MOPL Display Card Yokogawa microXL Ask
DP88B*A DP88B *A MOPS – MOPL Display Card Yokogawa microXL 4
EN83*A EN83 *A Ethernet Network Card Yokogawa microXL 3
HD82*A HD82 *A Hard Drive Module Yokogawa microXL Ask
HD82B*A HD82B *A Hard Drive Module Yokogawa microXL Ask
LC81*A LC81 *A RL-Bus Interface Card Yokogawa microXL 4
LC82*A LC82 *A Redundant RL-Bus Interface Card Yokogawa microXL Ask
LC82*B LC82 *B Redundant RL-Bus Interface Card Yokogawa microXL 5
LCS*C LCS *C Loop Communications Card Yokogawa microXL 1
MF89*A MF89* A MOPS Power Supply Yokogawa microXL 2
MF89*B MF89 *B MOPS Power Supply Yokogawa microXL 2
MFCD*A MFCD *A Field Control Unit Yokogawa microXL 9
MHC*A MHC *A Signal Conditioner Nest Yokogawa microXL 9
MHM*A MHM *A Signal Conditioner Nest Yokogawa microXL 12
NP53*A NP53 *A Basic MFCU Processor Card Yokogawa microXL 2
NP53*B NP53 *B Basic MFCU Processor Card Yokogawa microXL 1
NP53*C NP53 *C Basic MFCU Processor Card Yokogawa microXL 1
NP54*B NP54 *B Enhanced MFCU Processor Card Yokogawa microXL 2
NP54*C NP54 *C Enhanced MFCU Processor Card Yokogawa microXL 19
OPK-30ES Operator Keyboard Yokogawa microXL Ask
PS84*B PS84 *B MOPL Power Supply Yokogawa microXL 4
RM81*A RM81 *A MOPS – MOPL Memory Card Yokogawa microXL 3
RS2*B RS2 *B Module Yokogawa microXL 3
AIP552 AIP552 Module Yokogawa Centum XL 2
CP21*A CP21*A Processor Card, 2 MB Yokogawa Centum XL 4
CP333D CP333D Module Yokogawa Centum XL Ask
CP99A*A CP99A *A Processor Card Yokogawa Centum XL Ask
CPL-6 CPL-6 Module Yokogawa Centum XL 4
DP97*A DP97 *A Display Processor Card Yokogawa Centum XL Ask
DP97*B DP97 *B Display Processor Card Yokogawa Centum XL Ask
DX11*A DX11 *A Duplex Control Card Yokogawa Centum XL 2
FC11*A FC11 *A Duplex Control Card Yokogawa Centum XL 2
FC311 FC311 Module Yokogawa Centum XL 1
FC81*A FC81 *A HF Bus Comm Control Card Yokogawa Centum XL 2
IP91*A Communication Module Yokogawa Centum XL 1
NC4*B NC4* B Nest Common Card Yokogawa Centum XL 14
PS33*A PS33 *A Station Power Supply Card -117Vac Yokogawa Centum XL 6
PS62*A PS62 *A Power Supply Yokogawa Centum XL 1
PS63*A PS63 *A Power Supply Unit Yokogawa Centum XL Ask
PS71*A PS71 *A Power Supply Yokogawa Centum XL 1
PW301 PW301 Power Module Yokogawa Centum XL 2
SI11*B SI11*B Station Internal Communication Card Yokogawa Centum XL 3
AS S919 Keyboard-Video Module Yokogawa microXL Ask
CP81B*B MOPS – MOPL Processor Card Yokogawa microXL 2
CP81B*C MOPS – MOPL Processor Card Yokogawa microXL 1
CP81E*A CP81E *A MOPS – MOPL Processor Card Yokogawa microXL 1
DP88*A DP88 *A MOPS – MOPL Display Card Yokogawa microXL 3
DP88*C DP88 *C MOPS – MOPL Display Card Yokogawa microXL 1
DP88*D DP88 *D MOPS – MOPL Display Card Yokogawa microXL Ask
DP88B*A DP88B *A MOPS – MOPL Display Card Yokogawa microXL 4
EN83*A EN83 *A Ethernet Network Card Yokogawa microXL 3
HD82*A HD82 *A Hard Drive Module Yokogawa microXL Ask
HD82B*A HD82B *A Hard Drive Module Yokogawa microXL Ask
LC81*A LC81 *A RL-Bus Interface Card Yokogawa microXL 4
LC82*A LC82 *A Redundant RL-Bus Interface Card Yokogawa microXL Ask
LC82*B LC82 *B Redundant RL-Bus Interface Card Yokogawa microXL 5
LCS*C LCS *C Loop Communications Card Yokogawa microXL 1
MF89*A MF89* A MOPS Power Supply Yokogawa microXL 2
MF89*B MF89 *B MOPS Power Supply Yokogawa microXL 2
MFCD*A MFCD *A Field Control Unit Yokogawa microXL 9
MHC*A MHC *A Signal Conditioner Nest Yokogawa microXL 9
MHM*A MHM *A Signal Conditioner Nest Yokogawa microXL 12
NP53*A NP53 *A Basic MFCU Processor Card Yokogawa microXL 2
NP53*B NP53 *B Basic MFCU Processor Card Yokogawa microXL 1
NP53*C NP53 *C Basic MFCU Processor Card Yokogawa microXL 1
NP54*B NP54 *B Enhanced MFCU Processor Card Yokogawa microXL 2
NP54*C NP54 *C Enhanced MFCU Processor Card Yokogawa microXL 19
OPK-30ES Operator Keyboard Yokogawa microXL Ask
PS84*B PS84 *B MOPL Power Supply Yokogawa microXL 4
RM81*A RM81 *A MOPS – MOPL Memory Card Yokogawa microXL 3
RS2*B RS2 *B Module Yokogawa microXL 3
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