Flowserve BXRH 3.75工控备件模块

产品详细资料
执行通道命令下图显示了通信请求如何执行通道命令，在本例中为建立读取通道。1。当客户端PLC中的COMMREQ功能有电源流时，该命令启动。此时，命令块数据从PLC CPU发送到以太网接口。2.对于建立读取通道命令，如果命令块无效，则立即返回COMMREQ状态字。如果语法正确，则COMMREQ状态字在个重要事件之后返回：在未能正确及时地建立信道时，或在次成功传输数据时。3.在成功设置到服务器PLC的通道后，以太网接口执行命令块中指定的定期读取。COMMREQ格式用于编程通道命令。本章中描述的通道命令使用通信请求（COMMREQ）功能发送。当逻辑程序向COMMREQ功能块通电时，会触发通信请求。
Executing a Channel Command The figure below shows how a Communications Request carries out a Channel command, in this case, Establish Read Channel.1. The command starts when there is power flow to a COMMREQ function in the client PLC. At this time, the Command Block data is sent from the PLC CPU to the Ethernet interface. 2. For the Establish Read Channel command, the COMMREQ status word is returned immediately if the Command Block is invalid. If the syntax is correct, the COMMREQ status word is returned after the first significant event: upon failure to establish a channel correctly and in a timely manner or upon the first successful transfer of data. 3. After the channel is successfully set up to the server PLC, the Ethernet interface performs the periodic reads as specified in the Command Block.COMMREQ Format for Programming Channel Commands The Channel commands described in this chapter are sent using the Communications Request (COMMREQ) function. The Communications Request is triggered when the logic program passes power to the COMMREQ Function Block.
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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