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。畫出系統(tǒng)各個(gè)功能過程的工作循環(huán)圖或流程圖、功能圖及有關(guān)信號(hào)的時(shí)序圖。
(4)按照PLC程序語言的要求設(shè)計(jì)梯形圖或編寫程序清單。梯形圖上的文字符號(hào)應(yīng)按現(xiàn)場信號(hào)與PLC內(nèi)部接口對(duì)照表的規(guī)定標(biāo)注。
2．PLC程序設(shè)計(jì)的一般原則
(1)保證人身與設(shè)備安全的設(shè)計(jì)都不是多余的。
(2)PLC程序的安全設(shè)計(jì)，并不代表硬件的安全保護(hù)可以省略。
(3)了解PLC自身的特點(diǎn)。
(4)設(shè)計(jì)調(diào)試點(diǎn)易于調(diào)試。
NEW AMETRIC 08B38 38 TOOTH STEEL 45MM SINGLE ROW CHAIN
C1080 GEAR SPUR 14-1/2DEG 1-1/2 IN SINGLE ROW SPROCKET
NEW MARTIN D60B22H 1 IN DOUBLE ROW CHAIN SPROCKET D4254
NEW MARTIN D40B36 STEEL CHAIN DOUBLE ROW 15/16IN BORE S
NEW MARTIN 35A24 STEEL CHAIN SINGLE ROW 1-1/8IN BORE SP
MULTIVAC 886568 28TEETH CHAIN SINGLE ROW TRANSMISSION 4
NEW MARTIN 2060B18 DOUBLE ROW CHAIN SPROCKET D399313
NEW MARTIN 40BS21 1 SINGLE ROW CHAIN SPROCKET D427171
NEW MARTIN 882C12SS STAINLESS 1IN BORE SINGLE ROW CHAIN
NEW MARTIN 80BTB25 2517 TAPER BUSH SINGLE ROW CHAIN SPR
NEW GATES 8M-32S-12 POLY CHAIN GT2 CHAIN SINGLE ROW IDL
NEW DODGE 096154 35TT525 TORQUE TAMER 25 TOOTH 2 IN SPR
NEW MARTIN 40B22SS ROLLER CHAIN SINGLE ROW 1IN SPROCKET
NEW INTRALOX A29198-4 TABLE TOP SPROCKET 800 10.3PD 262
FLEX
NEW MARTIN 60B20SS 20T NO.60 CHAIN SPROCKET 1 IN BORE
NEW TB WOODS W80-8M-35-SF W808M35 POWER CHAIN SPROCKET
NEW REXNORD 815-20T 20 TOOTH TABLE TOP CHAIN DOUBLE ROW
NEW ASHWORTH CTS-30-26 CLEATRAC 4.286IN OD 1-1/4IN ID B
VOITH 825450 REPLACEMENT 27 TOOTH ROLLER CHAIN DOUBLE 2
NEW ASHWORTH P9 23TOOTH KEYWAY BELT SINGLE ROW 1-1/4 IN
NEW MARTIN P56-5M-15-SH 56 TOOTH BELT SINGLE ROW 1-13/1
NEW MARTIN D40B32H 32 TOOTH STEEL 7/8 IN DOUBLE ROW CHA
NEW MARTIN 50B15SS STAINLESS CHAIN SINGLE ROW 20MM BORE
NEW TB WOODS 24XH200-SF QD TIMING BELT SPROCKET 24T 2IN
NEW REXNORD 882 15T 15 TOOTH CHAIN SINGLE ROW 1-1/4IN B
NEW MARTIN 60A48H SINGLE ROW CHAIN SPROCKET 3 IN QD BOR
NEW INTRALOX 1100 SPLIT DRIVE 1-1/2 IN BORE SPROCKET D3
NEW INTRALOX D9CVE7-1 CONVEYOR SPROCKET 1-1/2X1-1/2IN B
NEW MARTIN 41B20 STEEL 20 TEETH CHAIN SINGLE ROW 5/8 IN
NEW MARTIN 35B18SS 18 TOOTH CHAIN SINGLE ROW 20MM SPROC
NEW MARTIN 41B28 STEEL CHAIN SINGLE ROW 5/8 IN SPROCKET
MARTIN 40A18 5/8 IN DOUBLE ROW BELT SPROCKET B370848
MARTIN 40A18 5/8 IN DOUBLE ROW BELT SPROCKET B370848
NEW 802R1619 1-3/8IN BORE DOUBLE ROW CHAIN SPROCKET D39
NEW MARTIN D40B20H STEEL 20TEETH 5/8 IN DOUBLE ROW CHAI
NEW GOODYEAR W-45S-SDS EAGLE PD WHITE BELT SPROCKET D43
MARTIN 50A63 STEEL 1 IN SINGLE ROW CHAIN SPROCKET B3803
NEW INTRALOX S900 61PD 1-5/8IN SQUARE BORE SINGLE ROW C
NEW MARTIN 40BS42 3/4 42 TOOTH CHAIN SINGLE ROW 3/4 IN
NEW MARTIN 40BS42 42TOOTH STEEL CHAIN SINGLE ROW 1-1/4I
NEW MARTIN 60SF42 QD BORE STEEL CHAIN SINGLE ROW SPROCK
NEW MARTIN 60SF42 42 TOOTH BUSHED CHAIN SINGLE ROW SPRO
NEW MARTIN E80B22H 2-1/4 IN TRIPLE ROW CHAIN SPROCKET D
NEW MARTIN D80B21H 21 TOOTH 2-15/16 IN DOUBLE ROW CHAIN
NEW MARTIN D35B36 3/4IN ROUGH BORE DOUBLE ROW CHAIN SPR
NEW PAAL 08I02.139 08BZ21K 21TOOTH 1-15/16IN SINGLE ROW
NEW FALCON PLASTIC 1 IN SINGLE ROW CONVEYOR CHAIN SPROC
NEW INTRALOX 011577 1-1/2IN ID SINGLE ROW CHAIN SPROCKE
NEW DOUGLAS MACHINE N109436 SQUARE BORE 1-1/2IN CHAIN S
NEW MARTIN D50C16H STEEL CHAIN DOUBLE ROW 1-3/4 IN SPRO
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