cs3000 关于ALR121通讯卡件？ 大小是根据通讯过来的数据量，具体如下： this item sets the buffer used by a program. specify the size of buffer, must be smaller than 1000 words. the default is no setting. the following must be noted when setting the buffer: • the total size of communication data are the data defined for all the communication frames. the buffer is used to divide the area, and is irrelevant to the communication size. • always set the buffer size since this is a required setting item of the communication i/ o builder. other setting items cannot be specified unless the buffer is set. • when an odd number is used to define the size, the buffer is reserved for the size of the next even register by adding 1. • after properly setting the buffer and moving to the setting in the next line, an “*” (asterisk) is displayed in the sections for the program name of the reserved area and buffer. no setting is allowed for the sections marked with asterisks.查看更多
第1天
关注盖德视界
添加小助手
