是否进口:否 | 加工定制:否 | 品牌:ABB |
型号:DA301 |
GE DA301
对符号变量使用的限制
■符号变量不能用作非直接变量(例如,@变量名)(非直接变量描述)
■符号变量不能用于EGD页C块不支持符号变量
■符号变量不能用于COMMREQ状态字
■符号变量不能作为字内的位用于结点或线圈
■WEB页不支持使用符号变量符号变量不能用作硬件模块的I/0点,状态字等等。
■符号型布尔变量不允许用作非布尔参数
总线功能块
四个程序功能块允许PACSystems CPU跟系统中的非GE Fanuc VME模块之间进行通信
总线读(BUS_ _RD)
总线写(BUS_ _WRT)
总线读/修改/写(BUS_ RMW)
■总线测试和设置(BUS_ TS)
机箱、槽、子槽、区域和偏移量参数
机箱和槽参数涉及到硬件配置中的一个模块。区域参数涉及到配置那个模块的一个存储区域。子槽一般设定为0。偏移量是一个基于0的的数,用偏移量加上基地址(区域配置的的部分)计算要读和写的VME地址
每一个槽能够达到8个可配置的VME地址区域。这些区域能在这个模块中交迭。少必须配置一个区域用来模块和逻辑间的通讯。VME地址区域在模块的硬件配置存储器表中配置
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