Emerson SLS1508

咨詢熱線--17750626260

PLC的中央處理器（CPU 一般由控制器、運(yùn)算器和寄存器組成，這些電路都集成在一個(gè)芯片內(nèi)。CPU通過數(shù)據(jù)總線、地址總線和控制總線與存儲(chǔ)單元、輸入/輸出接口電路相連接。
與一般的計(jì)算機(jī)一樣，CPU是整個(gè)PLC的控制中樞，它按PLC中系統(tǒng)程序賦予的功能指揮PLC有條不紊的進(jìn)行工作。CPU主要完成下述工作：
（1）接收、存儲(chǔ)用戶通過編程器等輸入設(shè)備輸入的程序和數(shù)據(jù)。
（2）用掃描的方式通過I/O部件接收現(xiàn)場(chǎng)信號(hào)的狀態(tài)或數(shù)據(jù)，并存入輸入映像寄存器或數(shù)據(jù)存儲(chǔ)器中。
（3）診斷PLC內(nèi)部電路的工作故障和編程中的語法錯(cuò)誤等。
（4） PLC進(jìn)入運(yùn)行狀態(tài)后，執(zhí)行用戶程序，完成各種數(shù)據(jù)的處理、傳輸和存儲(chǔ)相應(yīng)的內(nèi)部控制信號(hào)，以完成用戶指令規(guī)定的各種操作。
（5）響應(yīng)各種外圍設(shè)備（如編程器、打印機(jī)等）的請(qǐng)求。
PLC采用的CPU隨機(jī)型不同而不同， 目前，小型PLC為單CPU系統(tǒng)，中型及大型則采用雙CPU甚至多CPU系統(tǒng)。目前，PLC通常采用的微處理器有三種：通用微處理器、單片微處理器（即單片機(jī)）、位片式微處理器。

WIDELL 2-1/2" -16 HEXAGON THREAD DIE 320829
 
STANLEY 5/8IN DRIVE IN-LINE ELECTRONIC NUTRUNNER E40MF2XXG-55 *LISTING #1*
 
NATIONAL 2-FLUTE HS 1-1/2" END MILL
 
1-3/32" ROUND COLLET 5C
 
HW CO. M16X1.5 HS TAP D-6 4 THREADS 1576
 
NTD/STD HS 1/2 - 20 3 FLUTE TAP
 
LACROSSE MENS PACK-LITE YELLOW 11" OVERSHOE SIZE 6 NIB
 
NATIONAL 2-FLUTE 1-15/64 13-1/2" HS LE TWIST DRILL SHANK
 
REGAL-BELOIT M22X2.5 HS TAP D-7 4 THREADS 10/K
 
union BUTTERFIELD 1-3/4" HS TWIST DRILL TAPER SHANK
 
INGERSOLL RAND 1/2IN DRIVE IN-LINE ELECTRONIC NUTRUNNER DEA120NTE9S8L
 
STANLEY? 3/8'' SQUARE DRIVE PNEUMATIC NUTRUNNER, MISSING TAG
 
VULCAN WELDING RODS 1/8 #10 400-HC
 
CODMAN STAINLESS 8/94 RETRACTOR CD6704
 
2-FLUTE 25/32 11-1/2" HS TWIST DRILL SHANK H647
 
BROWNING 1-1/8" SHEAVE PULLEY 1VP56X NIB
 
THOMAS & BETTS CRIMPING TOOL TBM8S
 
1/2" ROUND COLLET 5C
 
STEEL CITY PARALLEL TYPE CONCUIT CLAMP 3/4" LOT OF 7
 
5/8-11X4 1/2" GRADE 5 HEX HEAD BOLT 1" LOT OF 25
 
KANZEN TETSU 4" 45° STAINLESS BUTT WELD ELBOW LR45.4"
 
R&T CO. KEYSTONE REAMER 7/8 9-3/4" 8-FLUTE REAMER
 
DE.STA.CO 300LBF 1/8"NPT STRAIGHT LINE ACTION CLAMP 624
 
HS D NO.4 TWIST DRILL TAPER SHANK NIB 1-3/16"
 
CLE-FORGE 1-27/64 2-FLUTE HS TWIST DRILL SHANK 7848
 
CLE-FORGE HS 1-31/64 2-FLUTE TWIST DRILL SHANK 7992
 
USSTD 1-1/8"-7 TAP
 
BROWNING 0.96BORE 13 TEETH STEEL SPROCKET H5013X7/8 *NEW IN BOX*
 
UNBRAKO-3/4"
 
REGAL BELOIT CENTURY MC PM-125-300-4 LEAD 5 C3 HIGH SPEED END MILL
 
RADIAC ABRASIVES 4140RPM 6X1/2X1-1/4" GRINDING WHEEL RA46 J8 V8
 
ARMSTRONG TOOLS SPANNER WRENCH 2T04-3 4 / 4-363 NIB
 
BEACH FILTER 2 IN BAG CLYFORM EL300 NIB
 
NORTON 7X1X1-1/4 GRINDING WHEEL 32A60-GVBEP
 
BRADY 4" X 90' WHITE ON BLACK LABEL CARTRIDGE 9456-00
 
1 1/8-16 N GH4 RS 4 FLUTE
 
FORD 2-FLUTE 82 HSS COUNTERSINKS 61150002
 
SL-2398 TAPE GUN RETRACTABLE BLADE NEW IN BOXAC
 
WIKA 0-600PSI 1/4"NPT LM PRESSURE GAUGE 9310754 / 213.40 2.5 NIB
 
3M SCOTCH 3/4"X30'X.030" LINERLESS RUBBER SPLICING TAPE 130C NIB
 
BROOKS INSTRUMENTS FLOW METER GLASS TUBE R-9M-25-3 / BR-3/4-14G10
 
PRECISION JOBBER R15 #F HSS BLACK OXIDE 015006 SET OF 6 NIB
 
STARRETT 3"-4" OUTSIDE MICROMETER NO. 436
 
INTERTEX UHF JOIN SEALANT 3/4"X15FT PARTIAL ROLL
 
MARTIN 1-3/4" BORE 17-TOOTH DOUBLE-PITCH SPROCKET 2080B17 104405
 
BUSHING SK-1 3/8 RWF
 
union BUTTERFIELD HSS GRD HEXAGON THREAD DIE 1-1/8"-7 NC LH
 
REXROTH CHECK VALVE SV 15 GA 1-42/12


BUSHING SK-1 3/8 RWF
 
union BUTTERFIELD HSS GRD HEXAGON THREAD DIE 1-1/8"-7 NC LH
 
REXROTH CHECK VALVE SV 15 GA 1-42/12
 
MARSH BELOIT 1/4"NPT 0-60PSI KG/CM2 PRESSURE GAUGE 104903
 
JACOBS DRILL CHUCK 3BA 1/2-20
 
FLEXCO SRA SELF SETTING RIVETS 40527 NIB, 250 IN BOX
 
VERMONT 23/32" DRILL BIT 1-7 *NEW*
 
union BUTTERFIELD 3/8"-24NF HSS TAP GH3
 
APEX SOCKET ADAPTER EXTENSION EX-627-10 5/8
 
STANLEY 3/8" DRIVE RIGHT ANGLE ELECTRONIC NUTRUNNER E30LSRA2AXG-17
 
U 1-2 BUSHING NNB
 
2-1/4" 2-FLUTE HS TWIST DRILL TAPER SHANK
 
KOMET DRILL HOLDER TOOL UA3100731 *NEW*
 
UNKNOWN MANUFACTURER * 3/4" HEX NUTRUNNER BACK HEAD NNB * 4210245180
 
STANLEY A40LRA2TAM-3F2 ANGLE PNEUMATIC CLUTCH SHUTOFF NUTRUNNER 1/2 INCH
 
FIXED RENEWABLE CHIP BREAKER DRILL BUSHING U 1/4 LOT OF 2
 
CLECO 88NAL-5K 3/8'' SQUARE DRIVE PNEUMATIC ANGLE NUTRUNNER
 
BROWNING SINGLE GROOVE SHEAVE AK30X3/4 NIB
 
CLEVELAND PRECISION TAP M14 X 1.5 HS D6 4 FLUTE
 
DURBAL ROD END BEF-12-S0
 
THREAD ADAPTER COUPLER AM-1612-BR-O STAINLESS M16X1.5 MALE TO 1/2 NPT FEMALE NIB