成考院校在线答案
- 2022-09-12 [判断] <p class="MsoNormal">4、<span lang="EN-US" style="font-size:12.0pt">CPM1A</span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">系列</span><span lang="EN-US" style="font-size:12.0pt">PLC</span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">在同一段程序中不能同时使用编号相同的定时器和计数器。</span></p>
- 2022-09-12 [判断] <p class="MsoNormal">15、<span lang="EN-US" style="font-size:12.0pt">PLC</span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">的梯形图程序不能出现输入继电器的线圈。</span></p>
- 2022-09-12 [判断] <p class="MsoNormal">12、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">复合按钮按下时先接通常开触点，后断开常闭触点。</span></p>
- 2022-09-12 [判断] <p class="MsoNormal">7、<span lang="EN-US" style="font-size:12.0pt">PLC</span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">运行时，其输入输出之间存在滞后。</span></p>
- 2022-09-12 [判断] <p class="MsoNormal">1、<span lang="EN-US" style="font-size:12.0pt">S7-200</span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">系列</span><span lang="EN-US" style="font-size:12.0pt">PLC</span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">中</span><span lang="EN-US" style="font-size:12.0pt">LDN</span><span style="font-size:12.0pt; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">表示读取逻辑块或逻辑行的第一个常开接点。</span></p>
- 2022-09-12 [判断] <p class="MsoNormal">10、<span lang="EN-US" style="font-size:12.0pt">PLC</span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">的输入继电器只能由外部信号驱动。</span></p>
- 2022-09-12 [判断] <p class="MsoNormal">18、<span lang="EN-US" style="font-size:12.0pt">CALL</span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">为子程序调用指令，操作数为</span><span lang="EN-US" style="font-size:12.0pt">I0</span><span style="font-size:12.0pt; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">～</span><span lang="EN-US" style="font-size:12.0pt">I127</span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">。</span></p>
- 2022-09-12 [判断] <p class="MsoNormal">5、<span lang="EN-US" style="font-size:12.0pt">MOVP</span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">指令是当且仅当其前面的条件正跳变时才会执行。</span></p>
- 2022-09-12 [判断] <p class="MsoNormal">18、<span lang="EN-US" style="font-size:12.0pt">PLC</span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">按结构形式可分为整体式、模块式和叠装式。</span></p>
- 2022-09-12 [判断] <p class="MsoNormal">13、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">在工程实践中，常把输出映像寄存器称为输出继电器。</span></p>