2711PC-T6C20D
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FANUC A16B-1211-0860 CONTROLLER - 1 YEAR GUARANTEE NEW
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Fanuc PMC-M (I/O, M&S, RAM) PC Board A16B-2200-0345/09A In Excellent Shape !!!!
FANUC ANALOG SERVO I/F CARD MODULE A16B-2200-0290 -029
RECONDITIONED FANUC POWER SUPPLY ( A16B-1211-0890 )
Fanuc Opt 2 CNC Circuit Board A16B 2202-0400/07B
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Fanuc OPT 2C Control Board, # A16B-2201-0091/03A, WARRANTY
FANUC A06B-6058-H221 SERVO AMPLIFIER,A20B-1003-0271,A16B-1200-0800/08A
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FANUC A16B-2200-0174 A16B 2200 0174 A16B22000174 /
FANUC I/O board A16B-2203-0111 good in condition for industry use
FANUC A16B-2200-0020 PC BOARD A16B22000020
Fanuc additional axis board A16B-1210-0430
Fanuc Circuit Board A16B-2200-039 _A16B2200039 _ PCB CNC Card Module
FANUC A16B-1211-0060 CONTROL BOARD 4 AXIS
FANUC SERVO AMPLIFIER A16B-2202-077
FANUC SERVO AMPLIFIER, A16B-2202-076
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FANUC A16B-3200-0040/08D RJ3 MAIN CPU PCB BOARD
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FANUC A16B-1210-0480 /02A PANEL CONTROL BOARD F10/11
GE FANUC A16B-2201-0091/03A A16B-2201-0091 OPT2C
FANUC A16B-2202-0400/07B OPTION 2 BOARD W/SUB CPU ***XLNT***
FANUC POWER UNIT A16B-1211-0850
問:利用高速計數器記編碼器的脈沖,算出纜繩的長度,因為是鉆井用的,有時候井深達3000米。那脈沖會很大的一個數,這個該怎么辦??赡軙鯤SC0最大計數的值,該如何處理。
問題補充:好像是2147483647這個數吧,這個數怎么來的啊,超過這個數了HSC0的值是什么,是0嗎?
答:在S7-200中高速計數器的值是以雙整數(32位)的格式存儲的。雙整數的取值范圍中-2,147,483,648到+2,147,483,647,所以計數器的最大值也只能到+2,147,483,647。當計數值超出+2,147,483,647時,會跳轉到-2,147,483,648后繼續(xù)計數。
對于計算長度的應用,+2,147,483,647的值應該夠用了,不會出現超出范圍的情況。
假設0.1米編碼器轉一圈,編碼器每圈1000個脈沖,則1萬個脈沖對應長度1米。+2,147,483,647對應214748米。
對于計數值超出+2,147,483,647的情況,可以采用六六山的建議,并將清零操作放在高速計數器計數值達到比較值的中斷中執(zhí)行,可以減小累計誤差。
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