第一个和第二个读数存储在SVC_ REQ的参数块%R00127和%R00131中，减法功能忽略百毫秒数，DINT类型是有符号的值。上电到大约50年内，这一计算是正确的。两读数的偏差放置在存储单元%R00250中。在模块配置期间，来自模块的中断信号可能是激活或不激活。如果模块的中断信号不激活，它将不能在应用程序中用于触发逻辑执行功能，它也不能被屏蔽。但是，如果在配置中模块的中断信号是激活的

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