模糊控制器出错，怎么有个零阶保持器呀？

Leah

我的模糊系统运行出错了，错误提示如下Illegal rate transition found involving Zero Order Hold 'xtco/mohuweizhikongzhiqi1/Zero-Order Hold'. When using it to transition rates, the input must be connected to the fast sample time and the output must be connected to the slow sample time. The Zero Order Hold must have a sample time equal to slow sample time and the slow sample time must be a multiple of the fast sample time. Also, the sample times of all sources must be the same value

我的系统里明明没有连接零阶保持器，怎么出错里说我的零阶保持器有问题呢？从图上看，哪个零阶保持器好像还是属于模糊控制器那部分的，这是怎么回事呢？大家遇到过这样的状况么？怎么处理的呢？谢谢了