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CN105209989A 模拟单元、变换特性表创建装置以及可编程控制器系统 有权

模拟单元、变换特性表创建装置以及可编程控制器系统
摘要：
在安装于PLC(1)的模拟单元即模拟输入单元(3)中，具有：第1变换单元即A/D变换部(11)，其对应于第1变换特性而实施模拟值以及数字值之间的变换；保持单元即共用存储器(13)，保持变换特性表(7)，该变换特性表(7)表示与数字值彼此之间的变换相关的第2变换特性；以及第2变换单元即变换处理部(6)，其参照保持单元所保持的变换特性表，对应于第2变换特性而对数字值进行变换，在变换特性表中包含有数量与模拟单元中的数字值的分辨率相对应的、第1值与第2值的组合，该第1值是数字值，该第2值设为将第1值变换后的结果，第1值以及第2值的各组合中的第2值能够分别进行调整。
摘要（英）：

An analog input unit (3), which is an analog unit installed in a PLC (1), comprises: an A/D conversion unit (11), which is a first conversion means for carrying out conversions between analog values and digital values in accordance with a first conversion characteristic; a shared memory (13), which is a holding means for holding a conversion characteristic table (7) indicating a second conversion characteristic relating to conversions between pairs of digital values; and a conversion processing unit (6), which is a second conversion means which refers to the conversion characteristic table held by the holding means and converts digital values in accordance with the second conversion characteristic. The conversion characteristic table contains a number of combinations of a first value, which is a digital value, and a second value, which is the result when the first value is converted, where said number of combinations corresponds to the resolution of the digital values in the analog unit. The second value in each combination of a first value and a second value can be adjusted.

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