DI821

热线咨询：18050036945

   影响现场输入给PLC信号出错的主要原因有：

     1)造成传输信号线短路或断路（由于机械拉扯，线路自身老化，特别是鼠害），当传输信号线出故障时，现场信号无法传送给PLC，造成控制出错；

     2)机械触点抖动，现场触点虽然只闭合一次，PLC却认为闭合了多次，虽然硬件加了滤波电路，软件增加微分指令，但由于PLC扫描周期太短，仍可能在计数、累加、移位等指令中出错，出现错误控制结果；

     3)现场变送器，机械开关自身出故障，如触点接触不良，变送器反映现场非电量偏差较大或不能正常工作等，这些故障同样会使控制系统不能正常工作。

*********************************
厦门莫格电气自动化有限公司     
联系人：刘水仙（销售工程师）                                         
手   机：18050036945/0592-6808374
Q     Q：3443643092                        
邮    箱：3443643092@qq.com
传    真：0596-6514751（请备注刘工收)
本公司主营产品：AB，ABB，GE，本特利，福克斯波罗，英维斯，西屋，艾默生，横河                    
***********************************
BLACK PANTHER DRILL TAPER 2FLUTE 45/64

SQUARETHREAD 1-4 TAP

PEPPERL FUCHS V1-G-2M-PVC NIB

SPORLAN 2-1/8" ODF SOLDER CONNECTION SUCTION FILTER RSF-4817-T NIB

VALENITE CSSPR-10CA-3 6T6 INSERT HOLDER NIP LOT OF 6

R&T CO. KEYSTONE REAMER 27/32 9-1/2" 8-FLUTE REAMER

CHESTERTON 1.125" SEALS NIB 880S

STD TAP M4x0.7 HS G D4 111407 2 FLUTE

LOVEJOY 1-1/4 1/4X1/8W NYFL HUB NIB 697904 00020

CLE-FORGE 2-FLUTE 1-47/64 HS TWIST DRILL SHANK 7865

DRILL 7/8/" X 1/" VE

HILLMAN 50 PCS FAST-N-TITE 1/2-13 HEX NUTS 150204

TOTAL SOURCE MOTOR BRUSH FH3L1/00 LOT OF 2 NIB

CUTTER ENDS W/O HANDLE PVY 845-S-0349 NNB, LOT OF 16

PARKER CYL KIT 2 " BORE GRP5 2MNR , NIB

LOVEJOY 1040 2-PIECE HORIZONTAL INCH COVER SET G2040 / 697904 NIB

STANDARD TOOL CO. 5" 4:5 RATION HS END MILL

UNION BUTTERFIELD BRAGG 7/8 S&D DRIL BIT M989540 / 87-31-0070 NIB

SJP 2500BAR 1/2"NPT DUMP PORT TUBE ADAPTER *NEW*

1/4" 18 NPT 4-FLUTE TAPERED HAND TAP

NAPA 2-3/0GA 10 REG WALL HST THERMOTUBE 727619 NIB

ADCO 7/8 PUNCH

APT 3/16" CHUCK REAMER 127-0-0.1975 *NEW*

RADIAC ABRASIVES 16X3X5 GC150-G+800-V4 ANGLED GRINDING WHEEL NIB

HANSON WHITNEY #32517 1"-12 NF HS-G H4

HELI-COIL 3/4 10 STI NC 25/32 4-FLANGE HAND TAP 819-12

WELDON 3/4 BB24-5 DOUBLE SIDED END MILL 074-HS

FALK COVER 100T10

BLACK OXIDE TAP 20GH5 CT44107A

DODGE 4545X3-7/8 KW TAPER-LOCK BUSHING 117437 NIB

STANLEY A40LA2TAM-5A2 ANGLE PNEUMATIC CLUTCH SHUTOFF NUTRUNNER, 3/8 INCH

DURBAL 1/4" ROD END PF20L

CLECO 8RSAPT10 1/4'' HEX DRIVE PNEUMATIC PISTOL GRIP SCREWDRIVER

GARDNER DENVER DGD 380/60 12/90 MOTOR TOOL NUTRUNNER ESR5085A13M3C / 946218A2

WELDON 1" 2 FLUTED END MILL BB32-7 H78-HS

SCHNEIDER ELECTRIC HOIST PENDANT XAC-A 02H7 NIB

SANDVIK GROOVING BAR L13721 / RAG151 32-D12-25 C6M

SANDVIK GROOVING BAR L13721 / RAG151 32-D12-25 C6M

BRIDGEPORT SIZE-1 90° ANGLE PIPE ADAPTERS 1503 NIB 5 IN BOX

KALLER NITROGEN GAS SPRING M2/25

ALLEN BRADLEY ILLUMINATED PUSH BUTTON CAP RED/GREEN LOT OF 2 NIB

UNION BUTTERFIELD HSS 4-FLUTE TAP MKX1 DS

JACKSON BLUE DRYBOW 1675000 *NEW* LOT OF 25

LOVEJOY * COUPLING L095 HUB 3/4 * .750

GORE-TEX -450°F-600°F JOINT SEALANT NIB 1/4X50

GATES POLY CHAIN GT SPROCKET 14MX-34S-68-251?7, NIB

NEW YORK TWIST DRILL TWIST TAPER SHANK LOT OF 4 25/64 X 4-3/4

AIP INC. OBL 13X90 P12 W5 PUNCH NNB 743242-1 / 0987-JM5M