保持复位线圈-(RM)-若这种线圈已通电,便将-一个离散参考地址置为OF。此地址将-直保持为OFF,直到由一保持置位线圈所置位为止。虽然电源消失,或当PLC由STOP转换为RUN模式,该线圈的状态均将保持住。保持复位线圈将为既定的参考地址,而把–个非定义结果写人转换位(参见第二章操作系统中有关“转换与超驰”的情况)。链回路水平和垂直链路是用来联接功能模块间一条梯形逻辑线中的各单元,其用途是为了沿一条.逻辑线完成从左向右的逻辑(能耻)流。
Swagelok SS Hose Connection SS-PB6-PM6
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