从<span lang="EN-US">DDC</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: verdana; mso-ascii-font-family: verdana">和设备来想,以</span><span lang="EN-US">DDC</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: verdana; mso-ascii-font-family: verdana">为主体:</span><span lang="EN-US">IN </span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: verdana; mso-ascii-font-family: verdana">算是设备的状态反馈,从设备反馈状态到</span><span lang="EN-US">DDC</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: verdana; mso-ascii-font-family: verdana">,就是进到</span><span lang="EN-US">DDC</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: verdana; mso-ascii-font-family: verdana">就表示</span><span lang="EN-US">IN</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: verdana; mso-ascii-font-family: verdana">;</span><span lang="EN-US">OUT</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: verdana; mso-ascii-font-family: verdana">也是这样</span><span lang="EN-US">,</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: verdana; mso-ascii-font-family: verdana">从</span><span lang="EN-US">DDC</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: verdana; mso-ascii-font-family: verdana">上输出信号控制设备启停,阀门开度等就是</span><span lang="EN-US">OUT,</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: verdana; mso-ascii-font-family: verdana">我当时就是这么记牢的</span><span lang="EN-US">··</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: verdana; mso-ascii-font-family: verdana">呵呵,可能对</span><span lang="EN-US">BA</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: verdana; mso-ascii-font-family: verdana">高手来说我这个错误百出,但是很形象哦</span><span lang="EN-US">···</span><span style="FONT-FAMILY: 宋体; mso-hansi-font-family: verdana; mso-ascii-font-family: verdana">哈哈</span><span lang="EN-US">···</span><br/> |