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6SL3224-0BE34-5UA0 
西門子產(chǎn)品訂貨號：6SL32240BE345UA0 

西門子產(chǎn)品價格：168  RMB

西門子產(chǎn)品凈重：1.100 Kg

西門子產(chǎn)品承諾：質(zhì)保一年，原裝*

西門子產(chǎn)品尺寸：270.00 x 225.00 x 85.00

概述

SINAMICS G120C, frame sizes FSAA to FSF, with Inligent Operator Panel IOP

SINAMICS G120C compact inverters offer a well-balanced combination of features to address a wide range of applications. They are compact, rugged devices that are easy to operate and can be optionally equipped with a basic or advanced operator panel.

SINAMICS G120C inverters are especially suitable when it comes to meeting the requirements of system integrators, OEMs and distributors regarding high productivity and tailored performance.

優(yōu)勢

• Compact design
• Side-by-side design
• High power density, low envelope dimensions
• Simple installation in the tightest space
• Low space requirement
• Use in small control cabinets, close to the machine
• Optimized parameter set
• Optimized commissioning
• Getting Started document
• BOP?2 or IOP operator panels can be used
• Integrated USB connection
• Simple and fast software parameter assignment
• Simple to use during commissioning and in operation
• Minimized training costs, existing SINAMICS know-how can be used
• High degree of service friendliness, simple maintenance
• Plug-in terminals
• Cloning function using BOP?2, IOP or memory card
• Operating hours counter for "drive on" and "motor on"
• Fast mechanical installation
• Intuitive standard commissioning
• Component of Totally Integrated Automation
• Energy-efficient, sensorless vector control
• Automatic flux reduction with V/f ECO
• Integrated energy saving computer
• Safety Integrated (STO)
• Communications versions with PROFINET / EtherNet/IP, PROFIBUS DP, USS/Modbus RTU
• Coated modules
• Operation up to an ambient temperature of 60 °C (140 °F)

設(shè)計

SINAMICS G120C is a compact converter for control cabinet mounting in IP20 degree of protection where the Control Unit (CU) and Power Module (PM) function units are combined in one device.

The compact mechanical design and the high power density allow these devices to be installed in machine control enclosures and control cabinets for maximum space utilization. The SINAMICS G120C compact converter can be butt-mounted directly, without derating at temperatures up to 40 °C (104 °F).

SINAMICS G120C, frame size FSAA with BOP-2

SINAMICS G120C can be integrated into the widest range of applications, either using the integrated digital and analog inputs or via the integrated fieldbus interface (available in USS, Modbus RTU, PROFIBUS, PROFINET / EtherNet/IP versions). Especially the product versions with integrated PROFIBUS/PROFINET interface make full integration into the Siemens TIA family possible, therefore allowing the advantages of the seamless TIA product family to be fully utilized. SINAMICS G120C devices are preset in the factory so that they can be immediay connected to PROFIBUS and/or PROFINET fieldbus systems without parameterization.

SINAMICS G120C is also equipped with the safety function STO (Safe Torque Off) as standard, which is used to safely stop drives. As a consequence, machine manufacturers can simply comply with current machinery directives with minimum associated costs.

SINAMICS G120C can control asynchronous (induction) motors in the power range from 0.37 kW up to 132 kW (0.5 hp to 200 hp). Reliable and efficient motor operation is achieved by using state-of-the-art IGBT technology combined with vector control. The extensive range of functions integrated in the SINAMICS G120C also offers a high degree of protection for the converter and motor.

Line-side components

Line reactors

Line reactors smooth the current drawn by the converter and thus reduce harmonic components in the line current. Through the reduction of the current harmonics, the thermal load on the power components in the rectifier and in the DC-link capacitors is reduced as well as the harmonic effects on the supply. The use of a line reactor increases the service life of the converter.

Recommended line-side power components

Standard fuses can be used for the SINAMICS G120C. These must be dimensioned to comply with local regulations. In this chapter, you will find recommended components such as fuses and circuit breakers in compliance with IEC and UL regulations.

DC link components

Braking resistors

Excess energy in the DC link is dissipated in the braking resistor. The braking resistors are designed for use with the SINAMICS G120C. This has an integrated braking chopper (electronic switch).

Load-side power components

Output reactors

Output reactors reduce the rate of voltage rise (dv/dt) and the height of the current peaks, and enable longer motor cables to be connected.

Supplementary system components

Inligent Operator Panel IOP

Graphics-based, user-friendly and powerful operator panel for commissioning and diagnostics as well as local operator control and monitoring of SINAMICS G120C.

Basic Operator Panel BOP-2

A 2-line display to provide support when commissioning and troubleshooting the drive. The drive can be locally controlled.

Memory card

The parameter settings for an inverter can be stored on the SINAMICS SD memory card. When service is required, e.g. after the inverter has been replaced and the data have been downloaded from the memory card the drive system is immediay ready for use again. The associated memory card holder is integrated in the inverter.

PC inverter connection kit 2

For controlling and commissioning an inverter directly from a PC if the STARTER commissioning tool or SINAMICS Startdrive has been installed on the PC.

Spare parts

Shield plates

A set of shield plates is included in the scope of delivery for the motor and signal cables corresponding to the frame size of the SINAMICS G120C, and can also be ordered as spare parts.

Spare parts kit

This kit comprises four I/O terminals, one RS485 terminal, two pairs of Control Unit doors (1 × PN and 1 × other communication versions) and one blanking cover.

Set of connectors

A set of connectors for the line feeder cable, braking resistor and motor cable can be ordered corresponding to the frame size of the SINAMICS G120C inverter.

Roof-mounted fan

A roof-mounted fan (at the top of the device) comprising a pre-assembled unit with holder and fan can be ordered corresponding to the frame size of the SINAMICS G120C.

Fan unit

A replacement fan (at the rear of the device; heat sink) comprising a pre-assembled unit with holder and fan can be ordered corresponding to the frame size of the SINAMICS G120C.

集成

Connection example for SINAMICS G120C

USS/Modbus RTU communication interface

PROFIBUS DP communication interface

PROFINET, EtherNet/IP communication interface

6SL3224-0BE34-5UA0 
西門子產(chǎn)品訂貨號：6SL32240BE345UA0 

西門子產(chǎn)品價格：168  RMB

西門子產(chǎn)品凈重：1.100 Kg

西門子產(chǎn)品承諾：質(zhì)保一年，原裝*

西門子產(chǎn)品尺寸：270.00 x 225.00 x 85.00

PM240, PM240?2 and PM250 Power Modules

 
西門子產(chǎn)品訂貨號：6SL32240BE345UA0 

西門子產(chǎn)品價格：168  RMB

西門子產(chǎn)品凈重：1.100 Kg

西門子產(chǎn)品承諾：質(zhì)保一年，原裝*

西門子產(chǎn)品尺寸：270.00 x 225.00 x 85.00

PLC與計算機通訊的應(yīng)用

添加時間：2012-09-21 來源：www.aitmy。。ｃｏｍ | 閱讀量：37

提示：

　　1 引言　　可編程控制器(plc)由于其結(jié)構(gòu)緊湊、可靠性高、編程簡單、指令強大、靈活性強、能適用于比較惡劣環(huán)境等諸多優(yōu)點，

　　1 引言

　　可編程控制器(plc)由于其結(jié)構(gòu)緊湊、可靠性高、編程簡單、指令強大、靈活性強、能適用于比較惡劣環(huán)境等諸多優(yōu)點，現(xiàn)已在工業(yè)控制領(lǐng)域得到廣泛應(yīng)用。現(xiàn)普遍采用觸摸屏加plc的方法來監(jiān)控設(shè)備，但觸摸屏視角窄，不適應(yīng)惡劣環(huán)境，且數(shù)據(jù)存儲容量有限，不易實現(xiàn)大規(guī)模網(wǎng)絡(luò)互聯(lián)。因此我們采用plc與計算機通訊的方式實現(xiàn)實時監(jiān)控，克服了觸摸屏的缺點。

　　2 s7-200 cpu自由口通訊方式的應(yīng)用

　　世界的plc很多，如西門子、歐姆龍、松下、三菱等等，本人僅以西門子s7-200小型可編程控制器的cpu22×系列為例，介紹plc在計算機網(wǎng)絡(luò)中與計算機通訊的功能。

　　s7-200 cpu支持多樣的通訊功能，根據(jù)所使用的s7-200 cpu，其網(wǎng)絡(luò)可以支持一個或多個以下協(xié)議:

　　點到點(point-to-point)接口(ppi)

　　多點接口(multi-point)(mpi)

　　profibus

　　用戶定義協(xié)議(自由口)

　　自由口通訊是通過用戶程序可以控制s7-200 cpu通訊口的操作模式。利用自由口模式，可以實現(xiàn)用戶定義的通訊協(xié)議連接多種智能設(shè)備。通過使用接收中斷、發(fā)送中斷、發(fā)送指令和接收指令，用戶程序控制通訊口操作。在自由口通訊模式下，通訊協(xié)議*由用戶程序控制。通過smb30(口0)允許自由口模式，而且只有在cpu處于run模式時才能允許。當cpu出于stop模式時，自由口通訊停止，通訊口轉(zhuǎn)換成正常的ppi協(xié)議操作。

　　近年來，隨著我國鐵路運輸環(huán)境的改善，列車速度越來越高，勢必對鐵道車輛提出較高的要求，其表現(xiàn)在對列車的舒適性和運行可靠性、安全性的要求提高，因此車輛上設(shè)備的自動化程度越來越高。自動化程度的提高，帶動了網(wǎng)絡(luò)技術(shù)在列車控制和監(jiān)控上的應(yīng)用。車輛網(wǎng)絡(luò)控制、監(jiān)控簡圖如圖1所示。

　　整列車設(shè)有車輛級計算機，每個車廂設(shè)有本車計算機，車輛級計算機與各個本車計算機組成車輛的主網(wǎng)，本車計算機與本車廂內(nèi)的各個設(shè)備間組成子網(wǎng)。plc由于其自身的優(yōu)點，作為控制核心在車輛上的多種設(shè)備中得以應(yīng)用，例如列車自動門的控制、列車空調(diào)機的控制等，使其可以作為整個列車網(wǎng)絡(luò)系統(tǒng)中的一個節(jié)點。

　　3 通訊協(xié)議

　　siemens s7-200系列plc可以采用用戶定義通訊協(xié)議(自由口)模式實現(xiàn)計算機與plc、plc與plc的通訊。筆者所描述的例子中，雖然車輛計算機系統(tǒng)和車輛上的其它設(shè)備分別是多個設(shè)備供應(yīng)商的產(chǎn)品，但是只要制定好通訊協(xié)議，就能滿足相互通訊的要求。s7-200系列的plc正是由于其自由口通訊是通過用戶程序控制cpu串行通訊口的操作模式，所以可以方便地與車輛計算機通訊。

　　計算機(主站)每隔100ms查詢plc(從站)一次，主站發(fā)出從站動作控制命令給從站，從站收到命令后發(fā)給主站應(yīng)答幀，從站接收到主站發(fā)送來的一幀數(shù)據(jù)，計算出其校驗碼fcs，與接收到的一幀數(shù)據(jù)中的fcs比較，檢查是否有數(shù)據(jù)錯誤。如果有數(shù)據(jù)有誤，從站發(fā)送信息給主站，請求重發(fā)。

　　l 字符結(jié)構(gòu):每個字符由11位構(gòu)成，奇偶校驗位采用奇校驗方式。

　　起始位 數(shù)據(jù) 奇偶校驗位 停止位

　　1位 8位 d7…d0 1位 1位

　　l 傳輸數(shù)據(jù)幀格式

　　byte(0)…byte(n) fcs

　　byte(0)…byte(n)為字符串;

　　fcs為異或校驗碼，是發(fā)送的所有數(shù)據(jù)字節(jié)和地址字節(jié)之異或值。

　　l 主站命令幀結(jié)構(gòu)

　　從站地址 從站地址補碼 控制字節(jié) 命令字節(jié) fcs

　　l 從站應(yīng)答幀結(jié)構(gòu)

　　從站地址 從站地址補碼 控制字節(jié) 應(yīng)答字節(jié) fcs

　　4 通訊口初始化

　　plc內(nèi)部特殊存儲器位smb30和smb130分別配置通訊端口0和1，為自由端口通訊選擇波特率、奇偶校驗和數(shù)據(jù)位數(shù)。自由端口的控制字節(jié)描述如表1所示。

　　例如:在通訊協(xié)議中規(guī)定奇偶校驗為奇校驗、每個字符的數(shù)據(jù)為8位、波特率為19200、自由口協(xié)議，采用通訊端口0，則在plc初始化程序中將smb30賦值為0c5h。

　　例://串口初始化

　　┋

　　network 7

　　ld sm0.0

　　movb 16#c5, smb30 //波特率為19200奇校驗 //1起始位1停止位8數(shù)據(jù)位

　　eni //允許中斷

　　movb 2, smb34

　　movb 20, smb35

　　atch int_0, 8

　　┋

　　5 plc實時數(shù)據(jù)處理

　　由于s7-200系列plc在自由口模式下，通訊協(xié)議*由梯形圖程序或stl編輯器控制，程序可以使用接收中斷、發(fā)送中斷、發(fā)送指令和接收指令來控制通訊操作。cpu連續(xù)掃描用戶程序，執(zhí)行用戶任務(wù)。plc在程序執(zhí)行過程中，基于穩(wěn)定、快速靈活等方面考慮，cpu每個掃描周期都通過輸入輸出映像寄存器來執(zhí)行實際輸入輸出操作，即讀實際輸入點值到映像寄存器、寫映像寄存器值到實際輸出點。由于在中斷中不能順利進行數(shù)據(jù)讀寫操作，因此，可通過編程，利用plc循環(huán)掃描執(zhí)行程序的特點，使得在程序掃描期間實現(xiàn)數(shù)據(jù)存儲區(qū)與輸入輸出映像寄存器區(qū)交換數(shù)據(jù)。

　　在本實例中，plc上電初始化后轉(zhuǎn)入接收字符中斷，當上位機發(fā)出查詢命令后，plc判斷所發(fā)命令的地址和地址補碼是否正確;如果正確判斷上位機是向plc發(fā)送命令還是查詢plc狀態(tài);如果執(zhí)行命令則plc轉(zhuǎn)入主程序執(zhí)行相關(guān)命令，如果查詢plc狀態(tài)則將協(xié)議定義的信息發(fā)送給上位機，上位機收到信息后發(fā)送應(yīng)答幀給plc。

　　例:interrupt0 //接收開始

　　network 1

　　ldn sm3.0

　　ab= smb2, vb0

　　movw +0, ac0

　　movd &vb600, vd638

　　movb smb2, *vd638

　　xorw smw1, ac0

　　movb ac0, vb300

　　atch int_1, 8

　　atch int_6, 11

　　creti

　　network 2

　　ld sm0.0

　　dtch 8

　　atch int_6, 10

　　interrupt1 //接收地址補碼

　　network 1

　　ldn sm3.0

　　an sm1.0

　　movb smb2, *vd638

　　xorw smw1, ac0

　　network 2

　　ld sm0.0

　　atch int_6, 10

　　interrupt2 //接收命令后判斷

　　┋

　　network 3 //發(fā)送信息

　　ldw= ac2, +0

　　ab= vb301, vb604

　　ab= vb603, 16#00

　　atch int_4, 10

　　dtch 11

　　creti

　　network 4

　　ld sm0.0

　　wdr

　　┋

　　network 7

　　ld sm0.0

　　s m31.0, 1

　　dtch 11

　　atch int_5, 10

　　interrupt3 //接收應(yīng)答字節(jié)

　　network 1

　　ldn sm3.0

　　an sm1.0

　　movb smb2, *vd638

　　incd vd638

　　xorw smw1, ac0

　　decw ac2

　　network 2

　　ldw= ac2, 16#0000

　　movw ac0, vw300

　　network 3

　　ld sm0.0

　　dtch 8

　　atch int_6, 10

　　interrupt4 //發(fā)送信息碼

　　┋

　　network 6

　　ld sm0.0

　　movw ac0, vw105

　　xmt vb100, 0

　　atch int_6, 9

　　┋

　　interrupt5 //發(fā)送應(yīng)答幟

　　┋

　　network 9

　　ld sm0.0

　　movw ac0, vw105

　　xmt vb100, 0

　　r m31.0, 1

　　atch int_6, 9

　　┋

　　interrupt6 //轉(zhuǎn)入接受中斷

　　network 1

　　ld sm0.0

　　dtch 9

　　dtch 10

　　dtch 11

　　atch int_0, 8

　　6 計算機實時數(shù)據(jù)處理

　　計算機程序由車輛級網(wǎng)絡(luò)供應(yīng)商提供，根據(jù)雙方制定的通訊協(xié)議，通常采用vb或vc編寫，在此不做詳細描述。