6ES7412-2XG00-0AB06ES7412-2XG00-0AB0

6ES7412-2XG00-0AB06ES7412-2XG00-0AB0

以上plc命令请求中，stx（02h）是起始前缀符，etx（03h）是结束后缀符，电子秤返回数据中前后缀符之间为带±极性pol符的6位十进制当前称量值，其中sp（20h）为空格，cr（0dh）为回车，lf（0ah）为换行；s7-300plc在一个连接中通过命令方式完成每台台秤的称量数据采集任务，双方所有数据都以ascii编码传送，plc可根据不同工艺要求发不同的命令，分别可读取净重、毛重、总重和状态功能（去皮、置零、复位、累计、超差等）选择的信息，在netpro组态中分别建立起6套称量接口的tcp连接，并且定义由plc端为通信客户连接端，电子台秤设置为服务器端，plc通过send/receive接口程序设计实现与6套电子台秤的双向通信。

2）标签打印编程

godex ez-1100plus标签打印机具有热敏/热转印二种工作模式，具备tcp server/client和usb接口，内置常用标准条码库和支持ezpl程序语言，ezpl程序语言属条形码高级控制语言，有三种命令模式：控制命令，设定命令和标签格式命令。ezpl命令包括一串字符参数，并以一大写英文字母启首，作为功能识别码，各参数间以，作为区隔，每行命令结束时，以内建隐藏式符号“cr”为识别，控制命令及设定命令分别以符号“～”及“∧”启首，标签格式命令则不以符号启首，各识别码均为大写英文字母，各参数则为小写字母，旨在定义各类数据如线条﹑矩形﹑条形码﹑文字﹑图像等等。

条形码技术是随着计算机与信息技术的发展和应用而诞生的，它是集编码、印刷、识别、数据采集和处理于一体的实用技术，它的诞生*地促进了商品流通，条形码技术也是早期“物联网”概念诞生的驱动力之一。现代化的物流装备离不开商品条形码，当前世界上常用的条码制总类繁多，但使用zui广泛的是ean商品条形码，它由物品编码协会制定并通用于世界各地，我国目前在国内推行使用的也是这种商品条形码，ean商品条形码中zui常用的是ean-13码，也俗称为ean标准版；ean-13通用商品条形码一般由前缀部分、制造厂商代码、商品代码和校验码组成，条形码的zui后用1位校验码来校验商品条形码中左起第l－12数字代码的正确性。从前面所述的tcp连接及通信流程图中可看出godex ez-1100plus标签打印机占有tcp connection2连接，在ob1中调用fc106实现单向数据流通信的ean-13码打印功能，数据流其实就是标签打印的组合式命令，其命令的格式如下：

New CASH ACME Automatic Valve 1 inch F-82 30 PSI No. 15

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New F.N. Sheppard & Co. Belt TN900H075 AA 900H075 T.B.

New Optibelt ALPHA Belt T5-630-25 Lot of 4

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New Gates Poly Chain Belt GT Carbon 8MGT-1200-12 Lot of

New Gates Timing Belt T10-1320-25 Lot of 2

New Mcmaster HD Galv Steel Loop Straps COV2109Z1 1/14 

New Bushings 3463.0815563 34630815563 Qty Total of 2

New F.N. Sheppard & Co. Belt TN4255M25AB 425-5M-25 HTD 

New Kyoho ACNL-X2 Cylinder ACNL-X240X50-FA?-R2YK-W 62N40

New SMC Cylinder CG1UN50-110 Max Press 145 PSI 1.00 MPa

New Conbraco Compactorque Pneumatic Actuator 3TS-020-60

New Cutler Hammer E30JB Compact Pushbutton with Light 2

New Gates Poly Chain GT Carbon Belt 8MGT-1000-12 Lot of

New Tri-Clover Spare Parts Kit C216-1SFY

New Tri-Clover C216-3SFY Seal Kit

New Hydraulic Cylinder FJ-LAB1-40X66-2?0 40mm Bore 66 mm

NEW MAC Solenoid Valve PME-112DABE 6.8 WATTS EO5 120V/

New Apollo Valves Solenoid Valve 3TD-030-00A Max Press:

Philips Dale Resistors PL23 RN55C4322F 42.2 K Ohm Set o

New Avery Dennison Standard Paper Testing Waxes 8 Stick

New Avery Dennison Standard Paper Testing Waxes 8 Stick

New Avery Dennison Standard Paper Testing Waxes 8 Stick

New Thomas & Betts T&B Panel Mount Housing Base PB132 P

New SMC Ejector IN0-3971-77-4

New Weidmann Standard Paper Testing Waxes 8 Sticks 14A 

Heater Assy Assembly AR505-1800 AR5051800 1.500" X 2.31

New SMC Pneumatic Cylinder CQ2B40-75DCM-XC?18 145PSI 1.0

New Siemens Electronic Relative Humidity Duct Sensor 53

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Used Reliance Electric 57C380 Communications Module

New Zook 2 IN Rupture Disk PTG03 42734.020 1MX2X42X7

New Weidmann Standard Paper Testing Waxes 8 Sticks 12A 

New Carr Lane Roemheld Pressure Relief CLR-0460-682-TB?N

New OHMITE RLS1K25E Rheostat, Wirewound .1.25KOHM, 150W

New IHARA Check Valve KZD12-500N 1/4" Straight Compress

New Honeywell ML8115B1004 Two-Position Direct Coupled A

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New Lot of 2 RHP Bearings 6009-2RSNRJ 60092RSNJ

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New NACHI Ball Bearing 40TAA09DF Double Row, mm, 50mm

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New Potter & Brumfield Relays K10P-11D15-24 24 VDC Lo

New Johnson Controls Warmer/Cooler Scale,Bulb Thermomet

New Dristeem Relative Humidity Transmitter KHD-2-DBS

New SMC Cylinder CQ2WB63-25DCM-X C18 145 PSI 1.00 MPa 6

New Powerex Semiconductor CD431640AC14 4N309A 0505

New SMC Cylinder CQ2WB50-50DCM-X?C18 145 PSI 1.00 MPa 50

New OPTO 22 I/O Module ODC5Q LOT OF 2 II44054AD UL Moto

New Balluff Inductive Proximity Sensor BES-516-345-M0-?X

New OPTO 22 Remote Brick Terminator G4TERMR COM 005461 

New Balluff Proximity Sensor Switch BES-516-118-B0-?C5 1

New Rexnord B448ES Seal Kit E-SEAL Qty 2 Total

Murr Elektronik M12 Adaptor On Top Of MSUD Valve from A

New SMC Cylinder T-CHDMC25-75-K5?9W Max.Press. 3.5MPa D-

New SPI Bestyet flex stand 7" stand without base 98-356

New SMC Cylinder CDQ2B40-F1331-1?30 145PSI 1.0MPa D-J79W

New ADC KRONE LSA-PLUS Insertions Tool 10 087 256 Harr

New SMC Pneumatic Cylinder CQ2WA40-75DCM-X?C18 145PSI 1M

New Numatics Pneumatic Regulator R880-02C 05046280 Maxi

New Taiyo Parker Hydraulic Cylinder 160S-16SD40N30T?-LN

New Plast-o-matic Valves INC. Seal Kit Only For BSDA35T

New Toyo-oki Hydraulic Cylinder A686720 2001-06 TFA-SA 

New Turck EuroFast Cordset RK4.5T-10 U5238 300V P-7K-SC

New SMC Pneumatic Cylinder ACNL-X2-40X160-?FA-S-XC18 40

New SMC Pneumatic Cylinder CA1FN63-75-XC18 145 PSI 1.

Used Allen Bradley Relay Base 700HN121 Lot Of 5 10 Amp

New Yuken Hydraulic Cylinder CJT70-FA32B25B-?ABB-EK-20A 

New Select Tune Up Kit SM4AMAN-TK1 05038472 011-000486-

Used United Electric Controls Pressure Switch P/N: H12

New Plast-O-Matic Seal Kit Only For BSDA25T-NC SKBSDA02

New Select Series Fluid Products Tune Up Kit SM4AMAN-TK

Used Allen Bradley Manual Motor Controller 140M-C2E-B40

Used Allen Bradley Terminal Fuse Blocks 1429-H IEC 947-

New Dr. Electric Brushless Reverse Exciter 124C697G02 

New SMC Air Cylinder T-ACNL-X2-40X10?0-FA1-XN Bore 40mm 

New Dayton 6KD75 117 CFM AC AXIAL FAN 115 Volts 20/22 W

New TAIYO Hydraulic Cylinder 160S-16SD32N30 Maximum Pre

New SMC Cylinder T-CDJ1K15-60-67?9WL XW DC24V D-J279W 10

New TOYO-OKI Hydraulic Cylinder TFA-SA1FA32B70B?15ABD 32

New NSK Bearing 6313RZZC3E 711 SRIS 6313Z 6313 R 6313 R

New SMC Hydraulic Cylinder CHQB50-40D 50mm Bore 40mm S

New Taiyo Hydraulic Cylinder 100S-1R6SD32N30?-CN2 Max Pr

New SMC Air Cylinder ACNL-X2-40X190-?FA-S-XC Bore 40mm S

New NSK Vogel Miniature Valve OAV-01 Max Pressure: 140

New Taiyo Parker Hydraulic Cylinder 160S-16SD40N40T?-L

New emecanique Square D Contactor Starter LC1DT25F7 

New SMC Cylinder CDQ2B63-100DCM-?XC18 145PSI 1.0MPa 63mm

New Parker 4 Way 2 Position Double Solenoid Air Control

New NKE Slide Cylinder Bore LC15-15 9503 AC100V DC24V N

New TDK-Lambda Power Supply DPP15-24 Input: 115/230 VAC

New Power-One 5 Power Supply P/N: HN5-9/OVP-A Output: 5

New SMC Air Cylinder CDJ2KB16-15-J79?WL Max Press 100PSI

New Johnson Controls Temperature Sensor Duct AVG TE-G32

New EGS Appleton Electric Company Prismatic Glass Globe

New Eaton E Frame Circuit Breaker Handle 080825-T

New MAC 44B-AAA-GDFA-2B?A 44BAAAGDFA2BA Valve 24VDC 4.0 

New Allen Bradley Control Relay Cat: 700-HF32Z24 700 T

New Litton Clifton Precision Stepper Motor Type 15 SVAY

Used Belimo Air Damper Actuator GM24-SR US 24 VAC 50/

New Taiyo Parker Hydraulic Cylinder 35S-1R6SD32N45-?AR2