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
Fanuc A16B-1212-0871/10C Power Supply Board NEW
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 LTD OSI ETHERNET PCB A16B-2201-0560/03B *DAUGHTER BOARD CLIPS*
FANUC ROBOTICS DEVICENET INTERFACE BOARD PCB A16B-2203-0190/03A
GE FANUC A16B-1212-0220 INPUT/OUTPUT BOARD ****NNB****
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(wèn)：利用高速計(jì)數(shù)器記編碼器的脈沖，算出纜繩的長(zhǎng)度，因?yàn)槭倾@井用的，有時(shí)候井深達(dá)3000米。那脈沖會(huì)很大的一個(gè)數(shù)，這個(gè)該怎么辦?？赡軙?huì)超出HSC0最大計(jì)數(shù)的值，該如何處理。
問(wèn)題補(bǔ)充：好像是2147483647這個(gè)數(shù)吧，這個(gè)數(shù)怎么來(lái)的啊，超過(guò)這個(gè)數(shù)了HSC0的值是什么，是0嗎？
答：在S7-200中高速計(jì)數(shù)器的值是以雙整數(shù)（32位）的格式存儲(chǔ)的。雙整數(shù)的取值范圍中－2,147,483,648到+2,147,483,647，所以計(jì)數(shù)器的最大值也只能到+2,147,483,647。當(dāng)計(jì)數(shù)值超出+2,147,483,647時(shí)，會(huì)跳轉(zhuǎn)到－2,147,483,648后繼續(xù)計(jì)數(shù)。
對(duì)于計(jì)算長(zhǎng)度的應(yīng)用，+2,147,483,647的值應(yīng)該夠用了，不會(huì)出現(xiàn)超出范圍的情況。
假設(shè)0.1米編碼器轉(zhuǎn)一圈，編碼器每圈1000個(gè)脈沖，則1萬(wàn)個(gè)脈沖對(duì)應(yīng)長(zhǎng)度1米。+2,147,483,647對(duì)應(yīng)214748米。
對(duì)于計(jì)數(shù)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(jì)數(shù)器計(jì)數(shù)值達(dá)到比較值的中斷中執(zhí)行，可以減小累計(jì)誤差。
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