西门子6AV667代理商

发布时间:2018-03-07

西门子6AV667代理商

西门子6AV667代理商

西门子6AV667代理商

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SIEMENS(西门子销售中心)

 上海朕锌电气设备有限公司

zx-plc.com 

联系人:万紫云(销售经理)

 机:(微信同步)

Q Q:27798 23058 zx-plc.com 

 机:

公司网址http://zhenxindianqi.cn/ 

 

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SIEMENS) 诚信走天下,走遍天下有朋友 

上海朕锌电气设备有限公司是一家从事西门子工业自动化产品和数控系统销售、技术服务及培训的工程服务公司。

销售代理西门子WINCC组态软件,西门子PLC编程软件,西门子PLC,S7-200CN/S7-200/S7-300/S7-400/S7-1200/(6ES7/6GK/6AV/6FC/6SN/6FX/6SE/6RA/6DD/7ML/7MH/7KM/7MF/3RV/3RH/3TF)西门子PROFIBUS-DP总线,RS485总线接头,CP网卡,变频器,触摸屏,低压电器,数控伺服备件。

line; color: rgb(51, 51, 51); white-space: normal; background-color: rgb(255, 255, 255); max-width: 592px !important;">问题1:S7-200 PLC可以连接型编码器吗?
解答:S7-200 PLC可以连接型编码器,但应注意以下几点:
(1)S7-200 PLC可连接并行输出的型编码器。串行输出、总线型输出、变送一体型输出等型编码器需PLC具有相应的接口或组态能力,不能与西门子S7-200 PLC 直接连接。
(2)接入S7-200 PLC 的型编码器信号输出好是格雷码。如是纯二进制码,在数据刷新时可能有多位变化,读数会在短时间里造成错码。
(3)型编码器在每圈的每个位置都有的编码,由于 PLC数据更新受程序扫描周期的影响,因此经PLC读取并换算后的编码器位置值相对于编码器当前位置值存在一定的误差。
(4)对型编码器进行接线时,必须确保其与PLC输入点连接好。如有个别连接不良点,该点电位始终是0,将会造成错码而无法判断。

line; color: rgb(51, 51, 51); white-space: normal; background-color: rgb(255, 255, 255); max-width: 592px !important;">
问题2:S7-200 PLC与型编码器怎样接线?
解答:并行输出的型编码器输出有位就要占用PLC的位接点,以S7-200 PLC CPU224 为例,如使用12位输出的单圈型编码器(PNP集电极开路输出) ,需要占用CPU224的12位输入点。型编码器的12位信号输出线L0—L11依次接入CPU224 的I0.0—I0.7,I1.0—I1.3。如图1所示:

line; color: rgb(51, 51, 51); white-space: normal; background-color: rgb(255, 255, 255); max-width: 592px !important;">
图1 CPU224输入端与型编码器接线图

line; color: rgb(51, 51, 51); white-space: normal; background-color: rgb(255, 255, 255); max-width: 592px !important;">
问题3:怎样处理格雷码码值?
解答:西门子S7-200 PLC的寄存器中地址越高,字节位越低。如在输入寄存器中IW0 的
IB0 是高字节,IB1是低字节,因此必须将IW0 中的格雷码值左循环8 次,将高、低位字节调换一次位置得到正确排序的格雷码值存入VW0中。如图2所示:

line; color: rgb(51, 51, 51); white-space: normal; background-color: rgb(255, 255, 255); max-width: 592px !important;">

图2 字循环左移8次

line; color: rgb(51, 51, 51); white-space: normal; background-color: rgb(255, 255, 255); max-width: 592px !important;">而且,由于接入12位输出的单圈型编码器,需屏蔽掉IW0字内的I1.4—I1.7,将需要的格雷码数据存入VW2中。如图3所示:

line; color: rgb(51, 51, 51); white-space: normal; background-color: rgb(255, 255, 255); max-width: 592px !important;">

图3 逻辑与运算

line; color: rgb(51, 51, 51); white-space: normal; background-color: rgb(255, 255, 255); max-width: 592px !important;">在实际应用中,为了计算编码器转过的角度或位置,需使用格雷码指令GRAY_BIN_W功能块将格雷码解码为字类型的标准二进制码,对应放到VW4中。如图4所示:

line; color: rgb(51, 51, 51); white-space: normal; background-color: rgb(255, 255, 255); max-width: 592px !important;">

图4 格雷码转换

line; color: rgb(51, 51, 51); white-space: normal; background-color: rgb(255, 255, 255); max-width: 592px !important;">格雷码转换及指令库参考如下链接文档:


6SN1118-1NK00-0AA1

6SN1118-1NK00-0AA2

6SN1118-1NK01-0AA0

6SN1118-1NK01-0AA1

西门子数控备件区:

6FC5357-0BA10-0AE0

6FC5357-0BA11-0AE0

6FC5357-0BA20-0AE0

6FC5357-0BA20-1AE0

6FC5357-0BA21-0AE0

6FC5357-0BA21-1AE1

6FC5357-0BA24-0AE0

6FC5357-0BA24-1AE0

6FC5357-0BA30-0AE0

6FC5357-0BA31-0AE0

6FC5357-0BA31-1AE0

6FC5357-0BA32-0AE1

6FC5357-0BA32-1AE0

6FC5357-0BA32-1AE2

6FC5357-0BA33-0AE0

6FC5357-0BA33-1AE0

6FC5357-0BB11-0AE0

6FC5357-0BB11-0AE1

6FC5357-0BB12-0AE0

6FC5357-0BB13-0AA0

6FC5357-0BB13-0AA1

6FC5357-0BB14-0AA0

6FC5357-0BB15-0AA0

6FC5357-0BB21-0AE0

6FC5357-0BB21-0AE1

6FC5357-0BB22-0AE0

6FC5357-0BB23-0AA0

6FC5357-0BB23-0AA1

6FC5357-0BB23-0AE0

6FC5357-0BB24-0AA0

6FC5357-0BB25-0AA0

6FC5357-0BB31-0AE0

6FC5357-0BB33-0AA0

6FC5357-0BB33-0AA1

6FC5357-0BB33-0AE0

6FC5357-0BB33-0AE1

6FC5357-0BB33-0AE2

6FC5357-0BB33-0AE3

6FC5357-0BB34-0AA0

6FC5357-0BB34-0AE0

6FC5357-0BB34-0AE1

6FC5357-0BB35-0AA0

6FC5357-0BB35-0AE0

6FC5357-0BB52-0AE0

6FC5357-0BB53-0AE1

6FC5357-0BH00-0XE0

6FC5357-0BH00-0XE1

6FC5357-0BY20-0AE0

6FC5357-0BY20-1AE0

6FC5357-0BY21-0AE0

6FC5357-0BY21-1AE0

6FC5357-0BY21-1AE1

6FC5357-0BY24-0AE0

6FC5357-0BY24-1AE0

6FC5357-0BY30-0AE0

6FC5357-0BY31-0AE0

6FC5357-0BY31-1AE0

6FC5357-0BY32-0AE1

6FC5357-0BY32-1AE0

6FC5357-0BY33-0AE0

6FC5357-0BY33-1AE0

西门子数控备件二区:

6FC5210-0AA00-0AA0

6FC5210-0AD21-0AA0

6FC5210-0DA00-0AA0

6FC5210-0DA00-1AA0

6FC5210-0DA00-1AA1

6FC5210-0DA10-0AA0

6FC5210-0DA10-0AA1

6FC5210-0DA11-0AA0

6FC5210-0DA20-0AA0

6FC5210-0DA20-0AA1

6FC5210-0DA20-1AA0

6FC5210-0DA20-1AA1

6FC5210-0DA20-1AA2

6FC5210-0DA20-2AA0

6FC5210-0DA20-2AA1

6FC5210-0DA20-2AA2

6FC5210-0DA21-0AA0

6FC5210-0DA21-0AA1

6FC5210-0DA21-1AA0

6FC5210-0DA21-1AA2

6FC5210-0DA21-2AA0

6FC5210-0DA21-2AA1

6FC5210-0DA21-2AA2

6FC5210-0DB21-3AA1

6FC5210-0DB22-3AA1

6FC5210-0DF00-0AA0

6FC5210-0DF00-0AA1

6FC5210-0DF00-0AA2

6FC5210-0DF00-1AA0

6FC5210-0DF00-1AA1

6FC5210-0DF00-1AA2

6FC5210-0DF01-0AA0

6FC5210-0DF02-0AA0

6FC5210-0DF03-0AA0

6FC5210-0DF04-0AA0

6FC5210-0DF05-0AA0

6FC5210-0DF20-0AA0

6FC5210-0DF21-0AA0

6FC5210-0DF21-2AA0

6FC5210-0DF22-0AA0

6FC5210-0DF22-1AA0

6FC5210-0DF22-2AA0

6FC5210-0DF23-2AA0

6FC5210-0DF24-0AA0

6FC5210-0DF24-2AA0

6FC5210-0DF25-2AA0

6FC5210-0DF31-2AA0

6FC5210-0DF33-2AA0

西门子数控备件三区:

6FC5203-0AB00-0AA0

6FC5203-0AB10-0AA0


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