小数点位数在MS模块的DS3中存放,但只能通过siwatoolMS软件更改，不能通过S7200程序更改。以下是MS模块关于小数点的说明,
5.2.13 DS3 – Decimal Place for Remote Display and ASCII Weight Output
A decimal place can be specified for the Siebert remote display connected and for ASCII weight output in DS30. As the decimal place cannot be shown in the 16 bit numerical representation, all weight entries are assumed to have this decimal place.
For example, if the decimal place is set to 2, the measuring range of 20 kg should be specified as 2000. In ASCII weight output in DS30, at nominal load the value of 20.00 kg is output. At the same time, the weight value of 2000 is output to the SIMATIC CPU as the process value.