海西州西门子*代理6ES79521AS000AA0 海西州西门子*代理6ES79521AS000AA0
:李 工()竭诚为您服务
24小时 一三七九五二八九八七三
在线工作;
6ES74001TA010AA0 UR1,18槽,可安装2个冗余PS电源模块
6ES74001TA110AA0 UR1,18槽,铝质,可安装2个冗余PS电源模块
6ES74001JA010AA0 UR2,9槽,可安装2个冗余PS电源模块
6ES74001JA110AA0 UR2,9槽,铝质,可安装2个冗余PS电源模块
6ES74002JA000AA0 UR2-H,2x9槽
6ES74002JA100AA0 UR2-H,2x9槽,铝质
6ES74012TA010AA0 CR2,18槽,2段,可安装2个冗余PS模块
6ES74011DA010AA0 CR3,4槽
6ES74031TA010AA0 ER1扩展机架,18槽,只用于信号模块,可安装2个冗余PS模块
6ES74031TA110AA0 ER1扩展机架,18槽,铝质,只用于信号模块,可安装2个冗余PS模块
6ES74031JA010AA0 ER2扩展机架,9槽,只用于信号模块,可安装2个冗余PS模块
6ES74031JA110AA0 ER2扩展机架,9槽,铝质,只用于信号模块,可安装2个冗余PS模块
6ES74050DA020AA0 PS 405:4A,24/48/60V DC,5V DC/4A
6ES74050KA020AA0 PS 405:10A,24/48/60V DC,5V/10A DC
6ES74050KR020AA0 PS 405:10A,24/48/60V DC,5V DC/10A,用于冗余电源
6ES74050RA020AA0 PS 405:20A,24/48/60V DC,5V DC/20A
6ES74070DA020AA0 PS 407:4A,120/230V UC,5V DC/4A
6ES74070KA020AA0 PS 407:10A,120/230V UC,5V DC/10A
6ES74070KR020AA0 PS 407:10A,120/230V UC,5V DC/10A,用于冗余电源
6ES74070RA020AA0 PS 407:20A,120/230V UC,5V DC/20A
6ES79520AF000AA0 RAM,64 KB
6ES79521AH000AA0 RAM,256 KB
6ES79521AK000AA0 RAM,1 MB
6ES79521AL000AA0 RAM,2 MB
6ES79521AM000AA0 RAM,4 MB
6ES79521AP000AA0 RAM,8 MB
6ES79521AS000AA0 RAM,16 MB
6ES79521AY000AA0 RAM,64 MB
6ES79520KF000AA0 FLASH-EPROM,64 KB
6ES79520KH000AA0 FLASH-EPROM,256 KB
6ES79521KK000AA0 FLASH-EPROM,1 MB
6ES79521KL000AA0 FLASH-EPROM,2 MB
6ES79521KM000AA0 FLASH-EPROM,4 MB
6ES79521KP000AA0 FLASH-EPROM,8 MB
6ES79521KS000AA0 FLASH-EPROM,16 MB
6ES79521KT000AA0 FLASH-EPROM,32 MB
6ES79521KY000AA0 FLASH-EPROM,64 MB
6ES79710BA00 备份电池, 3.6 V/2.3 AH 适用于所有S7-400电源模块
6ES79601AA060XA0 近距离同步模块(zui远距离10米)
6ES79601AB060XA0 远距离同步模块(zui远距离10公里)
6ES79601AA045AA0 同步光纤,1米
6ES79601AA045BA0 同步光纤,2米
6ES79601AA045KA0 同步光纤,10米
6ES71971LA040XA0 Y-LINK, 用于连接单通路DP从站到S7-400H,基于IM153-BA02(不适用于PCS7 V6.1)
6ES71971LA110XA0 Y-LINK, 用于连接单通路DP从站到S7-400H
6ES74211BL010AA0 SM421数字量输入模块, 光隔离,32DI,24V DC
6ES74211EL000AA0 SM421数字量输入模块, 32DI,120V DC/AC
6ES74211FH200AA0 SM421数字量输入模块, 光隔离,16DI,120/230V UC, IEC1131-2 TYPE 2
6ES74217BH010AB0 SM421数字量输入模块, 电隔离,16DI,24V DC,带0.05 ms输入延迟,报警,诊断功能
6ES74217DH000AB0 SM421数字量输入模块, 光隔离,16DI,24-60V C,报警,诊断功能
6ES74221BH110AA0 SM422数字量输出模块, 光隔离,16DO,24V DC,2A
6ES74221BL000AA0 SM422数字量输出模块, 光隔离,32DO,24V DC,0.5A
6ES74221FH000AA0 SM422数字量输出模块, 光隔离,16DO,120/230V AC,2A
6ES74221HH000AA0 SM422数字量输出模块, 光隔离,16DO,5~230V AC,5A 继电器
6ES74227BL000AB0 SM422数字量输出模块, 光隔离,32DO,24V DC,0.5A,带有15 ms输出延迟,诊断
6ES74310HH000AB0 SM 431模拟量输入模块, 非隔离,16 AI,13 BITS,+/-10V, +/-20MA, 4 ~20MA; 20 ms 模块更新
6ES74311KF000AB0 SM 431模拟量输入模块, 光隔离,8 AI,13 BIT, U/I/RESIST
6ES74311KF100AB0 SM 431模拟量输入模块, 光隔离,8 AI,14 BIT, U/I/RESIST./THERMOEL/PT101
6ES74311KF200AB0 SM 431模拟量输入模块, 光隔离,8 AI,14 BIT, U/I/RESIST.0.416 ms 扫描计时
6ES74317KF000AB0 SM 431模拟量输入模块, 8 AI,16 BIT, U/I/THERMOEL.,,光隔离
6ES74317KF100AB0 "SM 431模拟量输入模块, 8 AI,16 BIT, RESIST./PT100/NI100,光隔离,
诊断,报警,20 ms 模块更新 "
6ES74317QH000AB0 SM 431模拟量输入模块, 光隔离,16 AI,16 BIT, U/I/RESIST./THERMOEL./PT100,报警,诊断
6ES74321HF000AB0 SM 432模拟量输出模块, 光隔离,8 AO,13 BIT,U/I
6ES74317KF006AA0 前连接器,用于模块6ES7431-7KF00-0AB0,螺钉型
6ES74401CS000YE0 CP 440-1通讯模块, 用于点对点连接,1通道,含配置软件 CD
6ES74411AA050AE0 CP 441-1通讯模块, 用于点对点连接,1通道,含配置软件 CD
6ES74412AA050AE0 CP 441-2通讯模块, 用于点对点连接,2通道,含配置软件 CD
6ES74501AP000AE0 FM450-1计数模块, 2通道,含配置软件 CD
6ES74513AL000AE0 FM451定位模块, 3通道,含配置软件 CD
6ES74521AH000AE0 FM452 电子凸轮控制器模块, 含配置软件 CD
6ES74533AH000AE0 FM453, 用于带伺服和步进电机的定位(3通道),含配置软件 CD
6ES74550VS000AE0 FM 455 C 控制模块, 16 通道,CONT.8/16 AI + 16 DI + 16 AO
6ES74551VS000AE0 FM 455 S 控制模块, 16 通道,步进和脉冲8/16 AI + 16 DI + 32DO
6ES74600AA010AB0 IM460-0发送器接口模块
6ES74601BA010AB0 IMF460-1发送器接口模块
6ES74603AA010AB0 IMF460-3发送器接口模块, zui远102米
6ES74632AA000AA0 IM463-2发送器接口模块, 用于借助IM314连接到S5扩展模块,zui远600米
6ES74610AA010AA0 IM 461-0接收器接口模块
6ES74611BA010AA0 IM 461-1接收器接口模块
6ES74613AA010AA0 IM 461-3接收器接口模块, zui远102米,K总线
6ES74610AA007AA0 终端模块,用于IM 461模块
6ES74613AA007AA0 终端模块,用于IM 461-3模块
6ES74681AH500AA0 IM电缆,带K总线,0.75 M
6ES74681BB500AA0 IM电缆,带K总线,1.5 M
6ES74681BF000AA0 IM电缆,带K总线,5 M
6ES74681CB000AA0 IM电缆,带K总线,10 M
6ES74681CC500AA0 IM电缆,带K总线,25 M
6ES74681CF000AA0 IM电缆,带K总线,50 M
6ES74681DB000AA0 IM电缆,带K总线,100 M
6ES74683AH500AA0 IM电缆,带PS传送,无K总线,0.75 M
6ES74683BB500AA0 IM电缆,带PS传送,无K总线,1.5 M
6ES74921AL000AA0 48针前连接器,螺钉型
6ES74921AL001AB0 48针前连接器,螺钉型,84个/包
6ES74921BL000AA0 48针前连接器,弹簧型
6ES74921CL000AA0 48针前连接器,卡接型
6ES74921CL001AB0 48针前连接器,卡接型,84个/包
6ES74922AX000AA0 10 DIN A4 标签纸, 颜色:浅色,4个标签条/张,用于信号模块
6ES74922BX000AA0 10 DIN A4 标签纸, 颜色:粉红色,4个标签条/张,用于信号模块
6ES74922CX000AA0 10 DIN A4 标签纸, 颜色:黄色,4个标签条/张,用于信号模块
6ES74922DX000AA0 10 DIN A4 标签纸, 颜色:红色,4个标签条/张,用于信号模块
6ES79631AA100AA0 "带有RS232接口的IF963-RS232接口模块,用于从CP441-AA05到CP441的点对
点连接"
6ES79632AA100AA0 "带有TTY接口的IF963-TTY接口模块,用于从CP441-AA05到CP441的点对点
连接"
6ES79633AA100AA0 "带有RS422/RS485接口的IF963-X27接口模块,用于从CP441AA05到CP441的点
对点连接"
6ES79021AB000AA0 RS232C - RS232C 点对点连接电缆, 9 针 D 插头,5 米
6ES79021AC000AA0 RS232C - RS232C 点对点连接电缆,9 针 D 插头,10 米
6ES79021AD000AA0 RS232C - RS232C 点对点连接电缆,9 针 D 插头,15 米
6ES79022AB000AA0 TTY - TTY 点对点连接电缆, 9 针 D 插头,5 米
6ES79022AC000AA0 TTY - TTY 点对点连接电缆, 9 针 D 插头,10 米
6ES79022AG000AA0 TTY - TTY 点对点连接电缆, 9 针 D 插头,50 米
6ES79023AB000AA0 RS422 - RS422 点对点连接电缆, 15 针 D 插头,5 米
6ES79023AC000AA0 RS422 - RS422 点对点连接电缆, 15 针 D 插头,10 米
6ES79023AG000AA0 RS422 - RS422 点对点连接电缆, 15 针 D 插头,5 0米
6ES74900AA000AA0 电源插头,用于 PS405 4A/10A/20A
6ES74900AB000AA0 电源插头,用于 PS407 4A/10A/20A
6ES74901AA000AA0 槽盖,用于子机架UR,CR和ER,10片包装
6ES74901BA000AA0 接线端子,用于模块,6片/包
6ES74921XL000AA0 "模板前防护盖套件,用于单槽 S7-400 CPU和FM模块, 包括1个短型,1个
中型和1个全长型"
6ES74922XL000AA0 前防护盖,用于I/O连接器,5片/包
6ES74922XX000AA0 覆盖箔,用于信号模块标签条,10片/包
A5E00753961 SIMATIC S7-400备份电池盒 (不含电池)
6ES79731HD100AA0 熔断器备件,用于数字量输出模块 6ES7422-5EH00-0AB0
6ES79642AA040AB0 IF964-DP主站接口模块, 用于S7-400控制器扩展DP端口
集成在 SIMATIC PCS 7 中的 S7-300 / S7-400 打包装置
应用程序目的
应用程序的目标是描述必须如何通过 WinCC (TIA 应用程序) 创建一个 S7 程序,以便日后可以集成到 PCS 7 系统中。
例如,用于机械制造商打包装置的 STEP 7 / WinCC 应用程序,一般都创建为 TIA 应用程序。这些应用程序中有一部分日后必定会集成到生产设备的控制系统中。为此,必须在创建这样的应用程序时就已考虑到某些组态规范。
此外,该文档还描述需求和必要的组态步骤,以便创建一个含有满足集成到 PCS 7 系统要求的 WinCC flexible 应用程序的 S7-300/S7-400 项目。该文档以分步说明的方式描述了必要的方法。
主要内容
本文档中主要描述了下列几点:
- 适用的编辑器 (AWL,SCL,CFC)
- 选择该系统的条件
- OS 传送措施
- WinCC flexible 连接到 CFC 程序
- 整合 TIA 项目和 PCS 7
有效性
… 对版本为 V6.0 到 V7.1 的 PCS 7 有效
例如,我们要读取的数值为1、2、4、7、8,我至少要选择1个单位的分辨率,选择2个单位的分辨率是显然不行的,因为我们读出了1这个数值,则2是读不出来的,在选择1个单位分辨率的基础上,我们读出来的1与真实的1的误差就是精度。机床上的数控系统对于直光栅是有分辨率的设定的,需要读取的数值间隔小于分辨率,机床就有可能会抖动或出错等。 对于式带增量信号编码器,能够精确的保持串行传输的位置值与增量值同步,值确切的对应一个增量信号,位置值一定在一个增量信号的正弦周期之内。如13位式,带512线的增量信号,位置间隔158秒,若要读取两个码盘位置中间的一个位置是不合适的,但是,我们可以通过对其所带的1Vpp增量信号进行细分,如细分100倍,则相当于在两个位置之间又引入了几个细分后的位置,我们可以在位置值的基础上,通过计算细分后的增量脉冲数而读取两个位置之间的一个位置值,如:512线细分100倍,位置1数值是0,位置2数值是158,则读取这两个位置间的位置可以在位置1:数值0的基础上多出一个脉冲则是25,两个则是25x2=50……但是,带增量信号的式编码器本身是不带细分的,这就要求用户能自行的对增量信号进行细分处理。
如何使用预定义数据类型UDT1“FILE_DB_HEADER”进行S7-300和S7-400的FTP通信?
S7-300和S7-400可以通过Advanced/IT以太网CP卡使用多种FTP功能。可以在以下三种模式中选择:
- FTP客户端:
通过“FTP_CMD”指令块触发FTP指令。CP卡访问远程FTP服务器。 - 使用CPU数据的FTP服务器:
远程FTP客户端访问CP,CP将文件访问转发到CPU。例如,一个文件被存储在CP中,之后CP会将文件内容保存在CPU中的相应数据块中。 - 使用CP文件系统的FTP服务器:
远程FTP客户端访问CP。文件只被存储在CP的文件系统中而不会转发到CPU。
除了zui后一个模式之外的所有模式必须使用CPU中的一个结构的数据块。在每个文件DB的开始必须使用预定义的数据类型UDT1 “FILE_DB_HEADER”,该数据类型可以从SIMATIC_NET_CP指令库中找到。
预定义的数据类型UDT1 “FILE_DB_HEADER”的结构
表格 01列出了如下内容:
- 预定义的数据类型UDT1 “FILE_DB_HEADER”的参数。
- 如何使用这些参数。
- 这些参数如何通过系统自动设置。
参数 | 说明 |
EXIST | 该位指示用户数据是否包含有效值。 使用CPU数据的FTP服务器:
|
LOCKED | 该位保护数据块不被访问。 使用CPU数据的FTP服务器:
为避免数据不*,获取数据之前,在用户程序中始终关注LOCKED位的状态。如果在DB块中获取数据,处理如下:
|
NEW | 该位指示文件DB中的数据已经通过外部方式修改。 通过使用CPU数据的FTP服务器:
NEW不会自动复位。必须在用户程序中手动复位该位以激活新的外部访问。 |
WRITE_ACCESS | 用于远程FTP客户端的写访问。 使用CPU数据的FTP服务器:
|
ACT_LENGTH | 用户数据的实际长度。当EXIST=1时该值有效。 使用CPU数据的FTP服务器:
|
MAX_LENGTH | 用户数据的zui大长度:DB的长度减去20字节的预定义数据类型UDT1 “FILE_DB_HEADER”的长度。在组态DB时设置zui大数据长度。 |
FTP_REPLY_CODE | 该值只在FTP客户端模式时有效。FTP服务器的 check-back信号存储在该值中;例如在“FTP_RETRIEVE” 或 “FTP_STORE”的情况下。 |
DATE_TIME | zui后一次对文件进行修改的日期和时间。仅当EXIST=1时该值有效。 使用CPU数据的FTP服务器:
如果CP的时间延迟功能激活,DATE_TIME的输入值即为延迟时间。 |
更多信息
FTP的示例程序参见条目号21605954。
内容简介
2013年11月西门子推出了基于S7-400PN-H冗余系统CPU集成PROFINET接口的Modbus/TCP冗余通信软件包“Modbus/TCP PN CPU Redundant V1”,
用于通过S7-400PN-H的集成PROFINET接口与支持Modbus/TCP的伙伴进行冗余通信
目录
1 Modbus TCP通讯概述
1.1通讯所使用的以太网参考模型
1.2 Modbus TCP数据帧
1.3 Modbus TCP使用的通讯资源端口号
1.4 Modbus TCP使用的功能代码
1.5 Modbus TCP通讯应用举例
2 SIMATIC S7-400H冗余系统 Modbus/TCP通讯概述
2.1 S7-400 PN-H冗余系统CPU集成PN口 Modbus/TCP通讯机理概述
2.2 软件包“Modbus/TCP PN CPU Redundant V1.0”使用说明
2.2.1 软件包“Modbus/TCP PN CPU Redundant V1.0”软硬件需求
2.2.2 软件包“Modbus/TCP PN CPU Redundant V1.0”软硬件需求
3 配置S7-400 PN-H冗余系统通过CPU集成PN口作为Server进行Modbus TCP通讯
3.1例子中使用的硬件设备及软件
3.2 S7-400 PN-H冗余系统及Modscan32软件组态
3.3 通讯测试
4 配置S7-400 PN-H冗余系统通过CPU集成PN口作为Client进行Modbus TCP通讯
4.1例子中使用的硬件设备及软件
4.2 S7-400 PN-H冗余系统及Modbus slave软件组态
4.3 通讯测试
5软件包“Modbus/TCP PN CPU Redundant V1.0”*
5.1读取IDENT_CODE
5.2 通过西门子*服务中心申请注册码REG_KEY
5.3 通过申请注册码REG_KEY
5.4 使用注册码REG_KEY
内容 | 下载 |
---|---|
S7-400 PN-H冗余系统集成PN口使用ModbusTCP PN RED软件包的Modbus TCP快速入门 | ![]() |
表01.
该条目描述如何从 SIMATIC S7 建立 MODBUS/TCP 连接以及从哪儿获取更多信息。
STEP 7 (TIA Portal)
可以通过 CPU 集成的 PROFINET 以太网接口建立 SIMATIC S7 300/400 与第三方设备之间的 Modbus TCP 连接。
提供以下产品。
产品 | 通讯方式 | 连接 | 支持功能码 | 订货号 |
---|---|---|---|---|
Modbus/TCP PN CPU | 集成有 PROFINET 接口的 CPU | CPU 集成 PROFINET 接口与第三方设备 | 1, 2, 3, 4, 5, 6, 15 和 16 | 6AV6676-6MB20-3AX0 |
Modbus/TCP CP | CP 343-1 和 CP 443-1 | S7 控制器通过扩展 CP 343-1 或 CP 443-1与第三方设备 | 1, 2, 3, 4, 5, 6, 15 和 16 | 2XV9450-1MB00 |
表 1
SIMATIC Modbus/TCP PN CPU 包含在 STEP 7 V13 Update 3 (TIA Portal) 及以上版本中。MODBUSPN 指令可在下面路径 "Instructions > Communication > Other" 中找到。
SIMATIC Modbus/TCP CP 内容包含在 STEP 7 (TIA Portal) V14 及以上版本中。MODBUSPN 指令可在下面路径 "Instructions > Communication > Communications Processor >MODBUS TCP" 中找到。
每个使用这些指令的 CPU 需要付费购买*,订购*请当地的西门子销售商,供货形式包含带有*码的软件注册表格和安装 CD,CD 中内容需要仅在 STEP 7 V5.x 中安装,不需要在 TIA Portal 中安装。Captain Chen Piao while talking to Jenkins, while his penetrating eyes in search of a river. Chen Piao was 16 years old from the river to the wind in the wind, in the more developed early, strong, brave and decisive character. Small fire wheel down the river, Chen float side boat side, and came to the cab Jenkins chat. They looked at the river, sometimes a few finless porpoise playing in the water, not well-known white birds around the small fire wheel upside down, the distant waves shining bright light shining in the sun, the two sides of Castle Peak and small fire round to go, this is really like a dream, everything is so natural, so harmony. Jenkins enjoyed the beautiful natural scenery, mesmerizing: "ah, this place is beautiful." Chen Piao reminded him: "you are not to experience the evil beach to stimulate feelings of it, we have to walk a few minutes later!" "Then I can't miss the golden opportunity or go to the deck to enjoy this wonderful experience."!" Said Jenkins, walking from the cab to the deck of the small fire wheel, and looking ahead. Pibozhanlang small fire wheel rapidly toward the beach for evil, Captain Chen Piao two big eyes staring at a bayonet bayonet practice of warriors, fast to the devil beach, he put the bow in front of the big black lagoon, fast marching. Standing on the deck of the Jenkins suddenly found the little steamer to the field away, he was scared, shouted: "my God, are you crazy? We're going to hit the reef......" Chen drift unmoved, a small fire wheel is still rapid towards the field for the small fire wheel to hit a big moment field, desperate Jenkins decided to throw the helve after the hatchet, he took a deep breath, suddenly from the wheel of fire on the deck of the jump to the big black lagoon, at the last moment, a small fire wheel bow swing smoothly passed large black lagoon. Originally, Chen Piaogang only action is intentional, which he had sailed a beach evil trick, every evil Big Black Lagoon Beach, he always dare to ship in front of a large open field in the field, from the big stone two feet away left the bow, the ship with the waves rushed to the big black on the reef and back to the boat, so that the ship hit a reef will not only through the place near the great black lagoon. Chen drift and use this method too large field hundreds of times, no one missed. Chen Piao looked at Jenkins on the rocks and was stunned: "Jenkins!"......" In the field of Jenkins also desperay shouted: "Mr. Chen, please help me......" The small fire wheeled relentlessly down the stream, where no ship was coming. For five days, passing ships will see a blond blue eyed foreigner standing in the field on the waving to them for help, but no one can save him. Five days later, Jenkins, standing on the rocks, was gone. Because of the death agreement, Chen Piao finally failed to get into court. The rain in the morning, Chen Piao in a grave soil put offerings, murmured: "brother, brother Jenkins died, give you revenge!" Originally, Jenkins is nominally a life-saving doctor, is actually a guy with a commit all sorts, diplomatic immunity, not only the bully, also open to Chongqing to sell opium. Some treat patients in his hospital, he secretly took western medicine to give them doping opium drugs, cure disease, but also addicted, then go, had to go to Jenkins there to buy expensive opium, lots of shining white silver flowed into Jenkins's pocket. Caughtsmokeaddiction people. Is very poor, often broken up, but because Jenkins is a foreigner, and with local authorities, local officials will wink. Chen Piao's brother once injured by accident, came to Jenkins's hospital treatment, but also infected with drug addiction, and eventually sold out all the property for the drug, resulting in his wife ran away from home, took away only two years old son. Chen Piao's younger brother so downhearted, Dutch act to death, such as Chen Piao Jenkins and the younger brother was destroyed in a few families. Since then, Chen Piao hated Jenkins this scourge of our fellow citizens who face the beast, vowed to let him die without the burial ground. Chen heard Jenkins drift love adventure, and dare to cross the beach looking for evil people, he deliberay in the air freezing cold, Jenkins went to the hospital, and finally makes Jenkins on the hook, in addition to harm people.Cherry wake up, found himself lying in the hospital infusion, one side of the boyfriend beam tone, and got up and said to go out to buy her food. Cherry just remembered that she was in a traffic accident on the way. Looking at the back of her boyfriend, she was very happy, and slept in the daze. When the cherry woke up again, but not her boyfriend saw her rival, but she had the good sisters Su Qin, she could not help but embarrassed: had to take beam Zhi, myself but so many scheming! At this point, Su Qin handed a new twist, gloating: "cherry, the car accident, you are proud of the legs, I'm afraid it will leave sequelae.". We have many years of friendship, so we bought a pair of crutches for you......" The cherry had changed her face, and felt the lower limbs. She looked to the door and hoped her boyfriend would come back soon. Su Qin sneer at: "you don't see, Liang Zhi in order to take care of you, make oneself too tired, faint in the road, and now in another hospital lie down?". I'm going to take care of him." Finishing cold out of the ward. Cherry quickly borrow the nurse's cell phone, call Liang Zhi number, the other party has been shut down. Cherry is very worried about Liang Zhihe Su Qin zhongxiujiuhao, vowed to retake Leung chi. She actively cooperated with the treatment, and after a few months, she was able to walk normally. On the day of discharge, cherry came to Sue's dormitory with a pair of crutches. "Thank you for your crutches," said sarcastically. "I'm sorry I didn't use it."." Seeing cherry's legs intact, Sue smiled and took out his cell phone. Cherry see beam sent to Su Qin SMS, just understand everything. Originally, the beam Zhi decides that the cherry can become a cripple, after she wakes up, abandoned her, and turn to pursue Su qin. Su Jean received beam confession message, scolded him for a while, but selfish Liang Zhi or leave the cherry. Su Qin worry cherry cannot stand double attack, intentionally sent crutches, and lied to take care of beam annals, to stimulate the cherry fight, let her live well. Cherry tears, hugged Su Qin: many years ago, they had the good sisters agreed to squeeze in a bed, if two people have a helpless, another is the other side of the crutch. Su Qin, the "rival in love", honored his promise in a special way......The old knife is not a knife, but early old yamen for a line of business, after all, is holding a broken knife head. The old knife who are usually very idle, the prisoner was busy execution in autumn days, the usual salaries are high, can cut the head of both business and bad luck, a blood stained light, so few people willing to do this line. The old town old knife, Lee three is one of the best known, he is not only a knife, and a knife. Lee three parents died early, and his wife and children, and only Brother Lee Sishui. That year, Li Sishui was accused of murder was sentenced to life, cut lijue, yamen another old knife just leave this job, behoove to send to Lee three. At that time, the old city was a sensation, and people wanted to see that Li Shan, who had cut his head and eyes all day, could kill his own brother. On the day of the execution method, huge crowds of people. In the three minute, for the gun rang, I saw Lee three shoulder guillotine knife, embrace old jars, with vigorous strides to the guillotine. He approached Li Sishui, slapping the jars, poured two bowls of wine, holding a bowl to his brother: "four water, you have made the law, Providence will not forgive. Today, you drink a bowl of wine from my brother. I'll take you on the road." Li Sishui finished the wine in tears and choked and said, "brother, wait a minute and give your brother a good time."." Cut open!" The execution officer gave the order, Li Sanshan and kill another bowl of wine, while guillotine knife, with a shout, blood splatter, Lee Sishui beheaded. Onlookers crowd first, and then burst into a burst of applause. Li Sanshan, however, was as heavy as water, without a drop of tear, and turned and strode away. Since then, people have secretly said that the Li three knife ruthless, more ruthless people. Li three exercises a guillotine knife, beheaded countless, old alone, lives alone in a lonely house. A year after the autumn evening, Li Sanshan is home to drink, heard someone knock gently. Open a look, outside the door stood a more than 40 year old woman, still carrying two boxes in hand. The woman opened the door to see the road: "my name is Yun Niang, but you yamen Li Lao Dao?"Li San asked suspiciously, "I'm Li Sanshan. What have you got?"" Yun Niang don't talk, just smile, open the door on the left side of the box, which is "Shuang Zhai building" several exquisite dishes, a pot of good fen; open on the right side of the box, there is a box full of horseshoe silver. Yun Niang wine dishes, and put the money to Lee then next to the front three, Lee three sit face blush. Lee Hill sat, face falling away from him "mother:" you have what I said, "if equivocate please leave my tricks." "Mother stay, then gave a smile:" said Lee knife cold cold heart, beheading does not blink, even kill brother don't shed a tear, did not think so