congradulate！
事实上，我非常欣赏二号桥：提问知道表示歉意“thanks for taking your time!";工程解决知道描述解决的方法和工艺，并且面对如此多的“问责”，依然知道“thank you ” anyway ，而我们很多标榜爱国的同志一方面不动脑筋自己解决问题，一方面别人帮他解决以后连个“屁”（原谅我这么说）都不放就没事了！礼仪之邦文明之邦的子民们，当反省了！
but i still have doubt about your use of P1501,for the type of P1501 is CT,it means that it can't be changed when MM440 is running! Unless you do it by the help of BICO!