1786-TPS
1786-TPS
1786-TPS
(2) 工作过程:主要分为内部处理、通信操作、输入处理、程序执行、输出处理几个阶段。
1) 内部处理阶段:
在此阶段,PLC检查CPU模块的硬件是否正常,复位监视定时器,以及完成一些其它内部工作。
2) 通信服务阶段
在此阶段,PLC与一些智能模块通信、响应编程器键入的命令,更新编程器的显示内容等,当PLC处于停状态时,只进行内容处理和通信操作等内容。
3) 输入处理
输入处理也叫输入采样。在此阶段顺序读入所有输入端子的通断状态,并将读入的信息存入内存中所对应的映象寄存器。在此输入映象寄存器被刷新,接着进入程序的执行阶段。
4) 程序执行
根据PLC梯形图程序扫描原则,按先左后右,先上后下的步序,逐句扫描,执行程序。但遇到程序跳转指令,则根据跳转条件是否满足来决定程序的跳转地址。若用户程序涉及到输入输出状态时,PLC从输入映象寄存器中读出上一阶段采入的对应输入端子状态,从输出映象寄存器读出对应映象寄存器的当前状态。根据用户程序进行逻辑运算,运算结果再存入有关器件寄存器中。
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TOL-O-MATIC RODLESS CYLINDER BC220SK22 22IN STROKE
TELEMECANIQUE MEMORY CARD XBT MEM32 834553
SIMPSON DC PROCESS INDICATOR M235-1-0-72-0 (LOT OF 5)
DANAHER THOMSON NEFF LINEAR MOTION SYSTEM WH50 WH05Z120
BURKERT ANGLE SEAT VALVE 2000 A 32.0 NBR RG 00 137554
GEMS TRANSDUCER 1200BGF600223AD003
HEIDENHAIN LINEAR SCALE HEAD SCANNING UNIT LS703 12356
CUTLER HAMMER HEAVY DUTY SAFETY SWITCH 1HD363
LEUKHARDT VMS-WK/500KB VMS-WK/MC
SMC CDA1FN80-1000-574 SMC CYLINDER CDA1FN80
HONEYWELL TEMPERATURE CONTROLLER DC330B-KE-000-10-0A-00
SLINK S LINK SLINK-IO SLINK-I/O 203A
PARKER 2H HYDRAULIC CYLINDER 2" 02.00 CPP2HLT14AC 18.5
SICK LIGHT CURTAIN LGTE075-291 SICK 1013422
NSK SUPER PRECISION BEARING 7207A5TRDULP4Y 2PCS
MICROFLEX COUNTER HZ40A6A242
CP SYSTEMS SERVO MOTOR 302-006A PART # K25870 REPAIRED
LOT OF 3 FESTO CPX-FB13 PROFIBUS 195740 541519 CPX-
SMC PNEUMATIC ROTARY CYLINDER MRQBS32-25NB
SMC PNEUMATIC ROTARY CYLINDER MRQBS32-25NA
DODGE BEARING BLOCK 023106 BORE 2 7/16
CONTRINEX PROXIMITY SWITCH DW-AS-513-M12 (LOT OF 10)
EUCHNER ENCODER PWE PWE008 PWE008RG073853
ANADEX PANEL METER DPM-705-A4-A115 REPAIRED DPM705A4A11
SIEMENS MOORE PRODUCTS 15853-31-6 LINK FACE BOARD
MASTERFLEX PUMP DRIVE 77300-90 COLE-PARMER 77300
LENZE BRAKE NM34004NR1 00406509 190VDC BFK458-10E K
OKUMA CHOKE COIL E2530-410-017-D E2530410017D
ABB 57298821 ULMA KB2/A KEYBOAR KEYPAD WITH KEY ALLEN B
BURKERT THERMO SWITCH 8400 444698B NIB PT100 -40/125C
LOT OF 2 DOUBLE E CORE CHUCK AIR INFLATED 508 588 8099
MSA DISPLAY 490892 SN 02669
TELEMOTIVE OUTPUT MODULE E7203-5 E72035 E7203-5
TELEMOTIVE E-7203-1 E72031 E7203-1 PCB BOARD
MURATA MURATEC MVL-RLY-151 CN8-G1023-510 MVR-R44-15
ROSEMOUNT 8711RRE30FR1 MAGNETIC FLOWTUBE METER 285PSI 1
ALLEN BRADLEY 1770-KF2 DATA HIGHWAY COMMUNICATION INTER
ROSEMOUNT 3311 CURRENT TO PRESSURE TRANSDUCER 3311DS1J1
VICKERS HYDRAULIC DIRECTIONAL VALVE DG5S4 DG5S4048C
EATON DURANT COUNTER 5881-1 58811-N BOX
ROSEMOUNT 01151-0934-0003 1151 SMART TRANSMITTER ELECTR
ROSEMOUNT 2090PG2A22B1M5 DIFFERENTIAL PRESSURE TRANSMIT
ROSEMOUNT PRESSURE TRANSMITTER 1135 F1S1B1E5 1135F1S1B1
FANUC BOARD A16B-1210-0030 /06F A16B12100030 06F
PINNACLE ULTRA TOUCH UL-101-2P PALM BUTTON NIB
ALTEK MODEL 235 PROCESS VOLTAGE ANALYZER
ADVANCED MOTION CONTROLS PWM AMPLIFIER 30A8iT NIB
JAVELIN ELECTRONICS COMPARATOR JV3400
RODIX FEEDER CUBE FC-93H PLUS 121-8510 121-000-8510
NSK LINEAR GUIDE BEARING LH LH250 LH250460GLC2W01P43
WATLOW PROCESS CONTROL SERIES 942 942A-1BA1-A000
PTI CONTROLS 118166 REV K 50027 RV .01 EXCELLON
THK LM SYSTEM HSR-25 HSR25A1SSGK (LOT OF 2)
MURATA MURATEC MVL-STD-MBD-102 CN8-G1005-520
MAGPOWR 3D103-RPL POWER CONTROL BOARD 3D103RPL NIB
OMRON V700-HMD13A RFID R/W HEAD V700HMD13A NIB
WILDEN DIAPHRAGM PUMP P.025/SLLL/BN/TF/SBN 00-9753
ROSEMOUNT CURRENT TO PRESSURE TRANSDUCER 3311 3311DS1J1
FESTO VALVE MANIFOLD CPV14-GE-ASI-4E4A-Z M8 170539
GLI MODEL 53 FLOW MONITOR E53A2A1N
KAYDON REALI-SLIM BALL BEARING 15163001 OL7 9" ID 11" O
ALLEN BRADLEY ETHERNET TCP/IP INTERFACE 1756-ENET/B E01
GENERAL ELECTRIC 4006L5036 G001 PC BOARD
ROSEMOUNT TEMPERATURE TRANSMITTER E94-Q30S PR-239 2D891
GE FANUC LOCAL I/O IC600BF900K IC600BF900
METSO POWER SUPPLY MODULE PEFT 405402
ALLEN BRADLEY ENCODER 845H-SJHZ24CRY2 SER B