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REXRTOH W-24-P-D-E23-A012 R900978416模块卡件

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REXRTOH W-24-P-D-E23-A012 R900978416模块卡件

类目:RELIANCE
型号:W-24-P-D-E23-A012
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RS485线路应以菊花链配置连接(避免星形连接)。Modbus的RTU版本包括每个传输的两字节CRC-16(16位循环冗余检查)。CRC-16算法本质上将整个数据流(仅数据位;忽略开始、停止和奇偶校验)视为一个连续的二进制数。该数字首先左移16位,然后除以特征多项式(11000000000101B)。除法的16位剩余部分被附加到传输的末尾,首先是LSByte。如果没有发生传输错误,则当在接收机处用相同的多项式除时,包括CRC的结果消息将给出零余数。如果469 Modbus从设备接收到CRC-16计算指示错误的传输,则从设备不会对传输做出响应。CRC-16错误表示错误接收了传输的一个或多个字节,因此应忽略整个传输,以避免469执行任何错误操作。CRC-16计算是用于错误检测的行业标准方法。RS485 lines should be connected in a daisy chain configuration (avoid star connections)The RTU version of Modbus includes a two byte CRC-16 (16-bit cyclic redundancy check) with every transmission. The CRC-16 algorithm essentially treats the entire data stream (data bits only; start, stop and parity ignored) as one continuous binary number. This number is first shifted left 16 bits and then divided by a characteristic polynomial (11000000000000101B). The 16-bit remainder of the division is appended to the end of the transmission, LSByte first. The resulting message including CRC, when divided by the same polynomial at the receiver will give a zero remainder if no transmission errors have occurred. If an 469 Modbus slave device receives a transmission in which an error is indicated by the CRC-16 calculation, the slave device will not respond to the transmission. A CRC-16 error indicates than one or more bytes of the transmission were received incorrectly and thus the entire transmission should be ignored in order to avoid the 469 performing any incorrect operation. The CRC-16 calculation is an industry standard method used for error detection.

发货期:1-3个工作日,具体可联系客服
质保:质保期一年!

 

主营产品简介
专注于DCSPLC、机器人控制系统、大型伺服四大系统领域。

主营产品各种模块/卡件,控制器,触摸屏,伺服驱动器。

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●使用前:

在操作和维护,安装设备之前,请阅读并严格遵守安全相关的信息。

Read and strictly follow safety-related information before operatingmaintainingand installing equipment.

●使用者要求:

必须从事安装,组装或维护设备等相关工控电气机械以及其他相关技术的人员。

Must be engaged in the installation,assembly or maintenance of equipment and other related industriacontroeectrica machinery and other related technica personne.应用范围:

应用于品牌本系列工业以及生产生活自动化设备产品。

Used in the brand of this series of industriaand production automation eauipment products

适用于场景:系统集成,非标定制,产线升级改造,原设备电气替换等等。

Suitable for scenarios:system integration,non-standard customizationproduction line upgrading and transformation,electrical replacement of original equipment,etc.

●操作人员:

应该由本品牌专业培训操作员来安装、操作和维修设备。专业人员具有技术能力强,熟悉安全信息和安全实施:

熟悉设备的安装加工、操作和维护:熟悉处理所有的潜在危险情况。

Equipment should be installed,operated and maintained by trained operators from the brand

●危险情况

警告

.请注意使用人员的人身安全。

●除了产品特性以及功能,还需了解产品的使用寿命环境。

●充分学习产品使用手册,否则非专业人员可能会造成人身危险。

Study the product instruction manual thoroughlyotherwise it may cause personal danger to non-professionals.

●服务行业

适用水泥,木业,石业,橡胶,石油,化工,发电,环保,水处理,制冷,交通,钢铁,食品,饮料,船舶,制冷等行业

Applicable to cementwood,stone,rubber,petroleumchemical, power generation,