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價(jià)格：5464
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產(chǎn)地：本地 |
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最少起訂量：1個(gè) |
發(fā)貨地：福建廈門市 |
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上架時(shí)間：2022-09-26 08:33:28 |
瀏覽量：182 |
廈門億佳天辰貿(mào)易有限公司
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公司類型：私營合伙企業(yè) |
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所屬行業(yè)：電工電器成套設(shè)備 |
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聯(lián)系人:張工
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詳細(xì)介紹
西門子的S7-200的程序結(jié)構(gòu)
過程映像輸入/輸出（I/Q）、變量存儲(chǔ)器V、內(nèi)部存儲(chǔ)器位M、定時(shí)器T、計(jì)數(shù)器C等屬于全局變量。S7-200的程序組織單元(ProgramOrganizationalUnit，簡稱為POU)包括主程序、子程序和中斷程序。每個(gè)POU均有自己的64字節(jié)局部變量，局部變量只能在它所在的POU中使用。與此相反，全局變量可以在各POU中使用。
下面是子程序可以使用的局部變量：
1)TEMP(臨時(shí)變量)是暫時(shí)保存在局部數(shù)據(jù)區(qū)中的變量。只有在執(zhí)行該P(yáng)OU時(shí)，定義的臨時(shí)變量才被使用，POU執(zhí)行完后，不再保存臨時(shí)變量的數(shù)值。
2)IN是由調(diào)用它的POU提供的輸入?yún)?shù)。
3)OUT是返回給調(diào)用它的POU的輸出參數(shù)(子程序的執(zhí)行結(jié)果)。
4)IN_OUT是輸入_輸出參數(shù)，其初始值由調(diào)用它的POU傳送給子程序，并用同一變量將子程序的執(zhí)行結(jié)果返回給調(diào)用它的POU。
主程序和中斷程序的局部變量中只有臨時(shí)變量TEMP。
具有輸入、輸出參數(shù)和局部變量的子程序易于實(shí)現(xiàn)結(jié)構(gòu)化編程，對于長期生產(chǎn)同類設(shè)備或生產(chǎn)線的廠家尤為有用。這些廠家的編程人員為設(shè)備的各組件或工藝功能編寫了大量的通用的子程序。即使不知道子程序的內(nèi)部代碼，只要知道子程序的功能和輸入、輸出參數(shù)的意義，就可以通過程序之間的調(diào)用快速“組裝”出滿足不同用戶要求的控制程序。就好像用數(shù)字集成電路芯片組成復(fù)雜的數(shù)字電路一樣。
子程序如果沒有輸入、輸出參數(shù)，它和調(diào)用它的程序之間沒有清晰的接口，很難實(shí)現(xiàn)結(jié)構(gòu)化編程。
子程序如果沒有局部變量，它和調(diào)用它的程序之間只能通過全局變量來交換數(shù)據(jù)，子程序內(nèi)部也只能使用全局變量。將子程序和中斷程序移植到別的項(xiàng)目時(shí)，需要重新統(tǒng)一安排它們使用的全局變量，以保證不會(huì)出現(xiàn)地址沖突。當(dāng)程序很復(fù)雜，子程序和中斷程序很多時(shí)，這種重新分配地址的工作量非常大。
如果子程序和中斷程序有局部變量，并且它們內(nèi)部只使用局部變量，不使用全局變量，因?yàn)榕c其他POU沒有地址沖突，不需作任何改動(dòng)，就可以將子程序移植到別的項(xiàng)目中去。
ABB YB560103-AS DSQC 208A External axis board
ABB YB560103-AL DSQC 209 Analogue I/O board
ABB YB560103-AM DSQC 210 Safety board
ABB YB560103-AN DSQC 211 Power supply
ABB YB560103-BF DSQC 215 Robot computer
ABB YB560103-AZ DSQC 220 Programming board
ABB YB560103-BD DSQC 223 PC Board digital I/O
ABB YB560103-BE DSQC 224 PC Board combi I/O
ABB YB560103-BK DSQC 227 Winchester interface
ABB YB560103-BD DSQC 228 Safety board
ABB YB560103-BN DSQC 230 Robot computer
ABB YB560103-BS DSQC 233 External axis board
ABB YB560103-BY DSQC 235A Rectifier
ABB YB560103-BZ DSQC 235B Rectifier
ABB YB560103-CA DSQC 236A Drive unit
DSQC 236B Drive
ABB YB560103-CC DSQC 236C Drive unit
ABB 3HAB2207-1 DSQC 236D Drive unit
ABB YB560103-CD DSQC 236G Drive unit
ABB 3HAB2245-1 DSQC 236H Drive unit
ABB 3HAA3563-AJA DSQC 236P Drive unit
ABB YB560103-CE DSQC 236T Drive unit
DSQC 239 Board - ABB RIO
ABB DSQC 241 Power supply
ABB YB560103-CM DSQC 242 Programming board
ABB 3HAA0001-CP DSQC 243 Serial measurement board
ABB 3HAA3563-ACA DSQC 245 Serial measurement board
ABB 3HAA3563-AAA DSQC 248 Programming board
ABB 3HAA3563-AGA DSQC 249A Rectifier
ABB 3HAA3563-AHA DSQC 249B Rectifier
ABB 3HAA3563-AD DSQC 252 System board
E3HAC028756-001 DSQC 253 SMB unit DSQC 573
E3HAA3563-AMA DSQC 253 Serial Measurement Board
E3E 042816 DSQC 253 Exch. Serial mes. DSQC 253W
6369901-218 DSQC 253 Serial Measurement Board
ABB 3HAB2211-1 DSQC 256A System board
ABB 3HAA3563-AUA DSQC 258 Power supply
ABB 3HAB8797-1 DSQC 266B Drive unit
ABB 3HAB8798-1 DSQC 266C Drive unit
ABB 3HAB8801-1 DSQC 266G Drive unit
ABB 3HAB8800-1 DSQC 266H Drive unit
ABB 3HAB8799-1 DSQC 266K Drive unit
ABB 3HAB8802-1 DSQC 266T Drive unit
ABB 3HAA3573-AAA DSQC 300 Board - Computer
ABB 3HAB2210-1 DSQC 300 Board - Computer
ABB 3HAB2233-1 DSQC 300 Board - Computer
ABB 6369901-380 DSQC 300 Board - Computer
ABB 3HAA3573-ABA DSQC 301 Programming board
ABB 3HAB2209-1 DSQC 306 Computer board
ABB 6369901-298 DSQC 306 Computer board
ABB E3HAB2209-1 DSQC 306 Computer board
ABB 3HAB3700-1 DSQC 313 Serial measurement board
ABB 3HAB4259-1 DSQC 313 Serial measurement board
ABB 3HAC9522-1 DSQC 313 Serial Measurement Board
ABB 3HAB2215-1 DSQC 314A Rectifier
ABB 3HAB2216-1 DSQC 314B Rectifier
ABB 3HAB2231-1 DSQC 314C Rectifier DC link
ABB 6369901-336 DSQC 314C Rectifier DC link
ABB E3HAB2231-1 DSQC 314C Rectifier DC link
ABB 3HAB2214-1 DSQC 315 Combi I/O
ABB 3HAB2219-1 DSQC 316 Computer board
ABB 3HAB2209-1 DSQC 317 Memory expansion board
ABB 3HAB2233-1 DSQC 322 Robot computer
ABB 3HAB5956-1 DSQC 323 Memory expansion board
ABB 3HAB5957-1 DSQC 324 Memory expansion board
ABB 3HAB2241-1 DSQC 325 Main computer
ABB 3HAB2242-1 DSQC 326 Robot computer
ABB 3HAB7230-1 DSQC 327 Analogue Digital Combi I/O
ABB 3HAB7229-1 DSQC 328 Digital 24 VDC I/O
ABB 3HAB7215-1 DSQC 331 Panel unit
ABB 3HAC17973-1 DSQC 332 Digital relay I/O
ABB 3HAB5845-1 DSQC 334 Power supply
ABB 3HAB6182-1 DSQC 335 Robot computer
ABB 3HNE00001-1 DSQC 336 Network board NIOC-01
ABB 3HAB8101-1 DSQC 345A Rectifier
ABB 3HAB8101-2 DSQC 345B Rectifier
ABB 3HAB8101-3 DSQC 345C Rectifier
ABB 3HAB8101-4 DSQC 345D Rectifier
ABB 3HAB8101-14 DSQC 345E Rectifier
ABB 3HAB8101-5 DSQC 346A Drive unit
ABB 3HAB8101-6 DSQC 346B Drive unit
ABB 3HAB8101-7 DSQC 346C Drive unit
ABB 3HAB8101-11 DSQC 346E Drive unit
ABB 3HAB8101-8 DSQC 346G Drive unit
ABB 3HAB8101-13 DSQC 346U Drive unit
ABB 3HNE00957-1 DSQC 350 Remote I/O
ABB 3HNE00065-1 DSQC 354 Encoder interface
DSQC 355 I/O Board
ABB 3HAB8101-10 DSQC 358C Drive unit / Rectifier
ABB 3HAB8101-12 DSQC 358E Drive unit / Rectifier
ABB 3HAB8101-15 DSQC 358F Driveunit / Rectifier
ABB 3HAB8101-16 DSQC 358G Drive unit / Rectifier
ABB 3HAC0373-1 DSQC 361 Main computer
ABB 3HAC1462-1 DSQC 363 Robot computer
ABB 3HAC1620-1 DSQC 365 Power supply
ABB 3HAC3180-1 DSQC 373 Robot computer
ABB 3HAC3462-1 DSQC 374 Power supply
ABB 3HAC10597-1 DSQC 386 Devicenet gateway
ABB 3HAC3616-1 DSQC 500 Main computer
ABB 3HAC3619-1 DSQC 503 Axis computer
ABB 3HAC4297-1 DSQC 506 Power supply
ABB 3HAC5393-2 DSQC 508 Battery unit
ABB 3HAC5687-1 DSQC 509 Panel unit
ABB 3HAC7519-2 DSQC 518A Flash disk 64Mb
ABB 3HAC7519-3 DSQC 518B Flash disk 128Mb
ABB 3HAC8848-1 DSQC 522 I/O computer board
ABB 3HAC12158-1 DSQC 532 I/O Computer
ABB 3HAC14265-1 DSQC 539 Power supply
ABB 3HAC14279-1 DSQC 540 Main computer
ABB 3HAC16917-3 DSQC 544A Flash disk 64Mb
ABB 3HAC16917-4 DSQC 544B Flash disk 128Mb
ABB 3HAB8101-19 DSQC 545A Rectifier
ABB 3HAB8101-18 DSQC 546A Drive unit
ABB 3HAC17396-1 DSQC 562 Serial measurement board
ABB 3HAC022104-001 DSQC 564A Flash disk 64Mb
ABB 3HAC022104-002 DSQC 564B Flash disk 128Mb
ABB 3HAC020466-1 DSQC 627 Power supply
ABB 3HAC025918-001 DSQC 653 Digital relay
ABB 3HAC025465-004 DSQC 656 Flash disk 256Mb
ABB YB560103-BD DSQC223 I/O Card
ABB YB560103-BL DSQC228
ABB YB560103-CA DSQC236A DriveUnit
ABB 3HAA 3562-AGA/2 DSQC249A PowerUnit
ABB 3HAA 3563-ALA/2 DSQC252
ABB 3HAB 2211-1/1 DSQC256A
ABB 3HAB2213-1/3 DSQC313
ABB 3HAB6372-1 DSQC330 S4C Rechner Rack
ABB 3HAB7215-1/07 DSQC331 S4C Safety Board
ABB cable DSQC352 Profibus
ABB cannot find pn DSQC355 Analogbaugruppe
ABB YB161100-DP DSQS 174 Teach pendant S2
ABB YB161100-DR DSQS 174 Teach pendant S2
ABB 48990001-FE DSSR 115 Power supply
ABB 48990001-FK DSSR 116 Power supply
ABB 3HAC023195-1 Flexpendant Teach pendant IRC5
ABB 6397103-GA IRB1000 Wrist
ABB 3HAC7842-1 IRB140 Motor
ABB 3HAC7866-1 IRB140 Motor
ABB 3HAB3125-1 IRB1400 Motor
ABB 3HAB3388-1 IRB1400 Wrist
ABB 3HAC021458-1 IRB1400 / IRB2400 Motor
ABB 3HAA2120-1 IRB1500 Motor
ABB 3HAA2465-1 IRB1500 Gear
ABB 3HAA2596-2 IRB2000 Lower cable
ABB 3HAA2609-2 IRB2000 Bellow cables
ABB 3HAB3016-1 IRB2000 Lower c
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