MVME167PA-24SE说明书文档工控控制卡件PLC/DCS系统模块备件设备

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产品详情

产品标题: MVME167PA-24SE说明书文档工控控制卡件PLC/DCS系统模块备件设备

型号：MVME167PA-24SE

品牌：MOTOROLA

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产品详情资料：

MVME167PA-24SE

AQ立即命令在每次扫描期间，CPU会自动向I/O处理器模块发送6%AQ字。这些字可用于将即时命令数据传输到模块以临时更改配置参数或初始化计数器数据。以这种方式进行的配置参数更改不会影响模块配置数据（存储在CPU中），如果模块重新通电，该数据将再次生效。每个立即命令需要三个顺序%AQ字。每次PLC扫描期间始终发送两个立即命令。每个命令集的***个字包含识别命令号，另外两个字包含数据。每个命令字的实际地址取决于为%AQ引用配置的起始地址。即使每次扫描都会发送命令，但只有在上次扫描后命令发生更改时，模块才会对命令进行操作。当三个字数据中的任何一个发生变化时，模块将接受该数据作为新命令并做出相应响应。

产品英文详情料:

AQ Immediate Commands Six %AQ words are sent automatically from the CPU to the I/O Processor Module during each sweep. These words can be used to transfer immediate command data to the module for temporarily altering configuration parameters or to initialize counter data. Configuration parameter changes made in this manner do not affect the module configuration data (stored in the CPU) which will again become effective if the module is power cycled. Each immediate command requires three sequential %AQ words. Two immediate commands are always sent during each PLC sweep. The first word of each command set contains the identifying command number and the other two words contain the data. The actual address of each command word depends on the starting address configured for the %AQ references. Even though the commands are sent each sweep, the module will act on a command only if the command has changed since the last sweep. When any of the three–word data changes, the module accepts the data as a new command and responds accordingly.