HIMA F8627HIMA F8627

  工业控制中，除了用数字量信号来控制外，有时还要用模拟量信号来进行控制。模拟量模块有三种：模拟量输入模块、模拟量输出模块、模拟量输入/输出模块。
    (Ⅰ) 模拟量输入模块
    模拟量输入模块又称A/D模块，将现场由传感器检测而产生的连续的模拟量信号转换成PLC的CPU可以接收的数字量，一般多为12位二进制数，数字量位数越多的模块，分辨率就越高。
    (Ⅱ) 模拟量输出模块
    模拟量输出模块又称为D/A模块，把PLC的CPU送往模拟量输出模块的数字量转换成外部设备可以接收的模拟量（电压或电流）。模拟量输出模块所接收的数字信号一般多为12位二进制数，数字量位数越多的模块，分辨率就越高。
1.3.2  PLC的软件组成
    PLC控制系统的软件主要包括系统软件和用户程序。系统软件由PLC厂家固化在存储器中，用于控制PLC的运作。用户程序由使用者编制录入，保存在用户存储器中，用于控制外部对象的运行。
    1）、系统软件
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郑娟萍

厦门仲鑫航自动化设备有限公司

 系统软件包括系统管理程序、用户指令解释程序、标准程序模块及系统调用。整个系统软件是一个整体，它的质量很大程度上影响了PLC的性能。通常情况下，进一步改进和完善系统软件就可以在不增加任何设备条件下大大改善PLC的性能，使其功能越来越强。
2）用户程序
    PLC的程序一般由三个部分构成：用户程序、数据块和参数块。用户程序是必选项，数据块和参数块是可选部分。
用户程序即应用程序，是用户针对具体控制对象编制的程序。PLC是通过在RUN方式下，循环扫描执行用户程序来完成控制任务的，用户程序决定了一个控制系统的功能。
    一个完整的用户程序应当包含一个主程序、若干子程序和若干中断程序三大部分。

NEW FAFNIR BEARING 5204K 5204 K

NEW AMI UC208-24 4 BOLT FLANGE CARTRIDGE BEARING UC20824 F208

NEW NO NAME STAINLESS STEEL S/S SPLIT LOCKING SHAFT COLLAR 1"ID 2"OD 33/64"THICK

NEW SKF ANGULAR CONTACT BEARING 7011 CP4DGA 7011CP4DGA 7011C/P4 DGA 

NEW MRC TRW BEARINGS 113KSF 113 KSF ABEC1 01L0A006A82S P 000000 (0005) BEARING

SEALMASTER PILLOW BLOCK BEARING HOUSING FOR RPB 307-2 

NEW TIMKEN TAPERED ROLLER BEARING 6382

Rexroth Star Linear Bearing R075520600 0755-06 075506 New

Schatz Bearing BR9935 New

NEW SKF 22216 CCK/C3W33 SPHERICAL ROLLER BEARING 22216CCKC3W33

NEW KOYO ANGULAR CONTACT BALL BEARING 7208BGC3 

NEW SKF SELF ALIGNING BALL BEARING 2309-2RS1   2309 2RSJ 

SHUSTER WRA214 ROLLER BEARING NEW

NDH Delco Ball Bearing 45208 New

NEW FAFNIR SUPERPRECISION BEARING 2MM9110WI

NEW SKF MRC BEARING 5212A 52120

ITB BALL BEARING KP6AFS428 NIB

NEW RULAND SC-34-F STEEL SET SCREW LOCKING SHAFT COLLAR SC34F 2-1/8"ID 3"OD 

CCVI Female Rod End Bearing Hemi Joint Right Hand Thread 3/4"-16 Thread EF12TY

NEW SKF BEARING 5209 A-2RS/C3 5209A2RSC3

NEW SKF BEARING 6001

NEW MRC ROLLER BEARING 207 FS 207FS

SKF Single Row Ball Bearing 6313 2ZJEM 63132ZJEM 6313 C3 New

Opcon Photoelectric Control Unit 8170A-6501 101163 115 VAC 5VA 5 VA Used

UNIMOUNT BALL BEARING FLANGE UNIT F4-52/NIS-1 F452NIS1 NIB

New Fafnir Sealed On One Side Ball Bearing 302KDD 302KDD C1 

SealMaster Set Screw Gold Line STD STMP SSP-16 SSP16 1" Bore New

NEW SKF DEEP GROOVE BALL BEARING 6304/QE6 6304QE6 

INA Linear Technik Ball Bearing Bushing KNZ06 New

Bower Tapered Roller Bearing Cone 529 2" Bore New

NEW MRC BEARING 210M 0001 01STA 210M000101STA

NEW STEYR CYLINDRICAL ROLLER BEARING NU 1012 NU1012 NU 1012 C3 NU1012C3

NEW FAFNIR TORRINGTON 5208K  BALL BEARING 5208KC3

No Name Taper Lock Bushing 100812 1008-12 New

INA Cam Follower KRE 32 PP A KRE32PPA New

INA Cam Follower KRE 22 PP A KRE22PPA New

Falk Keyed Flex Hub 1010G 1203216 1.6235 New

Morse Insert Bearing 2-1 CS 2-1CS 21CS 1" Bore New

Hyatt Cylindrical Roller Bearing U1304TM U1304 1304T New

NEW NO NAME BALL BEARING 3110 198 2393 31101982393

NEW MRC BEARING R20F H101 R20FH101

NEW RBI SEALED ROLLER BEARING 1657-2RS  16572RS 

SKF Single Row Ball Bearing 6004/QE6 6004QE6 New

LOT OF 2 NEW TORRINGTON NEEDLE BEARING JH-68 JH68

NEW SMITH CAM ROLLER BEARING YR-1-1/4 YR1-1/4 YR114 New

NEW MRC BEARING R20ZZ H101 R20ZZH101

FAFNIR BALL BEARING 203KG 203KG-C3 203KGC3 NIB

NDH Double Row Ball Bearing 55605 530B 5605 New

COOPER B-LINE 666 SC SCREW COVER JUNCTION BOX 6" X 6" X 6" NEW

NEW NO NAME STEEL SET SCREW LOCKING SHAFT COLLAR 1-1/16"ID 1-47/64"OD 5/8"THICK

SKF Angular Contact Ball Bearing 7309 BECBY 7309BECBY 45 X 100 X 25MM New

RBC Cam Follower Bearing H24L CFH 3/4SB H24LCFH34SB H-24-LW H24LW New

SKF YET 203-010 Bearing w/ Collar YET203010 New

SKF / MRC 6009-2RS1/HT51 Bearing 60092RS1HT51 New

NEW IKO CAM FOLLOWER CF12UUR

DODGE 4 BOLT PILOTED BALL BEARING FLANGE FCSCM108 1-1/2" NIB

NEW LINEAR VT20 BEARING VT 20 

NEW SKF BEARING WITH SNAP RING 6200 N/C3 6200NC3

REXNORD ZEP2115 1 15/16" BORE SELF ALLIGNING PILLOW BLOCK ROLLER BEARING NIB

NEW MRC DOUBLE ROW BALL BEARING 5305CG

SKF Single Groove Radial Ball Bearing 309 New

NEW INA BEARING WITH COLLAR RAE15NPPB 

Koyo Tapered Bearing w. Outer Race 30213 New

NEW NSK ROLLER BEARING 6217C4EX28 

LOT OF 5 ITE BQ1-B020 CIRCUIT BREAKER 120/240VAC 1 POLE BQ1B020  20 AMP A 20A

NEW REX REXNORD SPHERICAL FLANGE BEARING MBR 3215 MBR3215 2-15/16" BORE

Fafnir Pillow Block Bearing RAK 1 3/4 RAK134 1 3/4IN 2 Bolt New

NEW SKF BALL BEARING 6004-2RSH 60042RSH

SKF Tapered Roller Bearing 665A New

SKF BALL BEARING 6015 J 6015J 6015 C3 6015C3 NIB

White-Rodgers 1609-43 Temperature Control 160943 New

NEW SKF ROLLER BEARING 6204 J 6204J  6204 

NEW RBC BEARING KP8A FS464 KP8AFS464

NEW POWER RITE HPC207-23 HPC20723 PILLOW BLOCK BEARING

NEW BROWNING VPLE-116 FLG BEARING VE-116 W/COLLAR R-15E

NEW MRC 214 SG2 214SG2 BALL BEARING

NEW RBC BEARING T RBC WIR 213 TRBCWIR213 

NEW MRC BEARING 2467049 5204 SBZZ1 5204SBZZ1

SKF BEARING 5215 H 5215H 5215 NIB

SKF 7228 GM 7228GM Bearing SEALED BOX

NEW DODGE P4B-S2-207R PILLOW BLOCK BEARING 2-7/16" 2 7/16" 070365 NIB

NEW NSK BEARING 5204TNGC2

Fag Bearing NUTD25 25X52X25MM New

NEW FAFNIR BALL BEARING 2MM208W1

Bendix Inline Check Valve 5003989 1/8" NPT X 1/4" NPT New

Sealmaster Seal Master Insert Bearing 2-08 208 1/2" Bore New

MRC Rubber Sealed Ball Bearing 36ZZ Lot of 2 New

(1) SET OF ROCO INC. A-24 PLASTIC BUSHING BEARING A24 

Browning Insert Bearing SLS-116 SLS116 SL-16 1" Bore New

Link Belt Insert Bearing YB212LK66 3/4" New

McGill Cam Follower Camfollower Bearing CFH 1/2 CFH12 CFH1/2 New

Smith Cam Follower Bearing CR-1 3/4X CR134X New

Fafnir Flange Bearing VCJT 1 11/16 VCJT11116 1-11/16" Bore NEW 

NEW RHP SELF-LUBE INSERT BEARING 1035-1.1/4G    1035114G

Fafnir Torrington Single Groove Radial Roller Ball Bearing 9115K New

NEW TIMKEN RACE CUP BEARING 3525 CUP 3525

NTN Single Row Radial Ball Bearing 626LLB New

NEW IKO CF 18 UU CAM FOLLOWER CF18UU 

SKF TYSON OUTER RACE BEARING 493 NIB

NEW FAFNIR ROLLER BALL BEARING 205K

NEW SCHATZ INSERT BEARING AFS2429 "LOT OF 2"

MRC Special Bearing 312 YA 312YA Pat No. 1622880 New

NEW SKF 6206-2RS1N/C3HT51 RUBBER SHIELD BALL BEARING 

NEW CONSOLIDATED ROLLER BALL BEARING 2310 C/3 2310C3

SKF 4 Bolt  Flange Bearing F4B-SXR-100 F4BSXR100 FY 1. WF 1" Bore New

Steyr Single Groove Radial Ball Bearing 6216 New

Nachi Snap Ring Bearing 6304ZZENR 6304ZE New

KYK Single Row Ball Bearing SS6001 ZZ SS6001ZZ S6001Z New

ELEKTRIM ESG 143TC 208-230/460V 1HP 1 HP 1755 RPM 3PH ELECTRIC MOTOR NEW

NEW SKF CYLINDRICAL ROLLER BEARING NU 306 M NU306M 3NU06

No Name Insert Bearing 477206-103 477206103 1 3/16" Bore New

Fafnir 307KC3 Ball Bearing 307K C3 307K New

NEW MARTIN 40BS20 1 1/2  SPROCKET 1-1/2" BORE

NEW CONSOLIDATED PRECISION BEARING SNR 2205 SNR2205

Koyo Single Row Ball Bearing 6210ZC3 New

NEW WESLOK BEARING ADAPTER SNW24X4-3/16 SNW244316

NEW INA ANDREWS BEARING 05Y12

SST Sealed Ball Bearing 6204 RS 6204RS New

Timken Tapered Roller Bearing Cup and Cone 368 (1)  363 (1) New

Fafnir 2 Bolt Pillow Block Bearing RSAO 1 7/16 RSA0 1 7/16 RSAO1716 1-7/16" New

TIMKEN TORRINGTON MCGILL CAM FOLLOWER BEARING CF-1-1/2-SB CF1-1/2SB CRSB-24 NIB

Martin Sprocket M1221C 3/4" Unkeyed 21 Teeth 3 3/8" Square New

SKF Tapered Roller Bearing 47687 New

NEW FLOWSERVE 82077934 BEARING SLEEVE 019 00

NEW HYATT ROLLER GROOVED NEEDLE BEARING 7693

Macromatic Relay SS-60228 SS60228 24 VAC/DC 10 A Amp Used

Fafnir Double Row Ball Steel Cage Roller Bearing 5310W 50mm ID 110mm OD New

(2) Timken Tapered Roller Bearing Cup JL-69310 JL69310 Lot of Two New

NEW A &S / HYSTER  TAPERED ROLLER BEARING 30216 F  1465814

NEW BROWNING SPROCKET H40H23 40H23 23 TEETH 

FAG Single Groove Ball Bearing 6004 New No Box

NTN 6302LLUC3/5C 6302LLU C3/5C BEARING NEW

SAGINAW ROLLER BEARING SMALL PARTS CONVEYOR TT9 NEW

Power Trans Flange Bearing FL210 NAFL210-31 NAFL21031

Timken Tapered Roller Bearing Single Cone LM806649 New

Fafnir Up Take Bearing RTU 1-3/16 RTU1316 1-3/16" Bore New

NEW FEDERAL MOGUL BCA INSERT BEARING WPS 100-GRC W100 WPS100GRC

NEW JAF SHIELD BEARING 5304 6304

Boston Gear 1-1/4" Pillow Block PPB-20 34322 New

NEW FAFNIR BEARING 9109PP

NEW BEARINGS LIMITED BEARING BGA 5207WDS

NEW SKF ADAPTER SLEEVE S-13X2-3/16 S 13 X 2-3/16  N-13 W-13

NEW SKF KMT 6 LOCKNUT KMT6

INA IR22X28X30 Inner Race Bearing IR 22 X 28 X 30 New

SKF 7228 MG 7228MG Bearing SEALED BOX

NEW RBC BEARING KSP5 FS428 3NPS1 MS27645-5G W9126A

NDH Double Row Ball Bearing 5211 New

FK Pillow Block Bearing P214 New

NEW NIS PRECISION BEARING 6206 LLUCM 6206LLUCM 6206LUCM

NEW ROLLWAY INNER RACE BEARING E 1211 106 E1211106

NEW SKF BEARING RLS8-2RS1 RLS82RS1

No Name Steel 4-Bolt 1-1/2" NPT Flange w. Hardware New

NEW ORANGE NEEDLE BEARING W/INNER RACE 8446 8466

PTI Rubber Sealed Roller Ball Bearing 2210-2RS 22102RS New

NEW BCA / FEDERAL MOGUL  WPS 107-GRC INSERT BEARING W107 WPS107GRC

NEW NTN A 2311 BEARING ADAPTER AN 11

NEW FAG 7216B.TVP.UO BEARING 7216BTVPUO 7216B-TVP-UO 7216B TVP UO

MRC / TRW 407S Bearing 407-S H501 NIB

NEW NACHI BEARING 6006ZE C3 6006ZEC3

Andrews Thrust Ball Bearing 05X50 New

FAG BEARING 6006.2RSR.T.C3 60062RSRTC3 1K039019

Nachi Single Row Radial Ball Bearing 6303ZZE 6303ZE C3 New

Timken Fafnir Single Row Deep Groove Ball Bearing 308KDGN 308KDG New

NEW SKF ROLLER BEARING 7303BEP 

NEW REXNORD FLANGE BEARING COVER K2E206D

NEW ntn BEARING RNU 204 RNU204 204

REX ZMC-6-2200 ZMC62200 OR ZMC-6-2115 ZMC62115 SELF-ALIGNING ROLLER BEARING NIB

NEW MRC ROLLER BEARING 109KSF ABEC1 109KSFABEC1

NEW SKF 224 DEEP GROOVE ROLLER BALL BEARING

NEW CONSOLIDATED ROLLER BEARING LS-10-AC LS10AC

Dodge UniSphere 2 Bolt Pillow Block 048011 Part Number New

Torrington Needle Roller Bearing B-3228 B3228 New

NEW FAG BEARING 6006 RSR 6006RSR 6006.2RSR.T.C3 60062RSRTC3

Link Belt Pillow Block Housing 662327117689 NEW

New Fafnir Single Groove Radial Roller Ball Bearing 5205K 

NEW TIMKEN TAPERED ROLLER BEARING W/RACE 32206 92H50 X-32206 32206

NEW TIMKEN 385 TAPERED ROLLER BEARING

RBC Male Rode End Heim Joint Bearing HMX6G 3/8" ID New

NEW GRAINGER/CCVI MALE END ROD BEARING HEIM JOINT 6G193 3/4"-16 RH BORE SIZE 3/4

NEW PEER SNAP RING BEARING 6210RLD

Fafnir 2 Bolt Flange Bearing RCJT 1/2 RCJT12 1/2"  New

NEW NACHI BEARING 6209NSE

NEW FAFNIR BEARING 205W

NEW MRC BEARING 111KSFF 0014 111KSFF0014

Conveyor Roller Bearing 3.061" OD 1" W @ Roller 1.25" AOW 1.062" Hexagon ID New

Hub City Inserting Bearing B250 X 1-3/16" B250X1316 1-3/16" Bore New 

Fafnir Single Row Radial Ball Bearing 307KDD 1 3/8" Bore New

NEW ISO UP-TAKE BEARING WITH COLLAR ST207 SA207-23M SA20723M

NEW BOWER BCA BEARING 5204-KSSE 5204KSSE

NEW SKF BEARING 6208 C3 6208C3

NEW MRC BEARING 5417

NTN Rubber Sealed Roller Ball Bearing 6304LLBC3/5C 6304LLBC35C 6304LB New