本文给出一种实时测量相量信号的新方法。
In this paper a new approach to real-time measurement of multi-channel phasor signals is presented.
介绍PLC对数字量信号和模拟量信号的采样和滤波处理方法。
The sampling and filtering methods with PLC for digital and analog signals are described in the article.
离散量信号测试模块完成离散量信号和离散量输入卡的自动测试。
The discrete magnitude signal test module realized the auto test for discrete magnitude signal and discrete magnitude input card.
从工程实际出发，介绍了PLC控制系统中离散量信号的采样滤波方法。
Based on the practical application, the filtering method of the discrete signal for PLC control system are introduced in details in this paper.
研究了数控代码中开关量信号的PLC的实现方法，并对其控制逻辑进行了举例说明。
The method was researched on how to realize the switching value signal by the way of the PLC in the NC code, and its control logic was illustrated.
在工业控制场合，常常需要对多路模拟量信号进行检测，并且还要对多路模拟量信号进行控制。
It's usually needs to be tested and controlled about the multi-way analogue signals on industry controlling.
概括起来就是各种模拟量信号、开关量信号、61162格式的串口信号、脉冲信号以及音频信号和视频信号。
Summarily, they include various analog signals, digital signals, signals defined in IEC 61162 series, pulse signals, audio signals and video signals.
本文介绍了一种成功应用于PLC -56b可编程序控制器中，可对多路模拟量信号进行检测与控制的有效方法。
In this paper, a method that's applied in PLC-56B for testing and controlling multi-way analogue signals is introduced.
因而本装置包括模拟量信号发生器、开关量信号发生器、串口信号发生器、脉冲信号发生器、正弦信号发生器、音频信号发生器和图像信号发生器。
Therefore, this device must design analog signals generator, digital signals generator, series signals generator, pulse signals generator, audio signals generator, and video signals generator.
他忽略了信号量。
本系列的下一篇文章将阐述信号量。
例如，现在通过资源控制处理所有共享内存和信号量。
For example, all Shared memory and semaphore Settings are now handled via resource controls.
在忙碌的服务器上出现信号量超时是很常见的。
It is common for semaphore timeouts to occur on a busy server.
其他资源（如信号量、网络句柄、数据库连接等）同样值得考虑。
Other resources, such as semaphores, network handles, database connections, and so on, deserve the same consideration.
注意，信号量超时并不一定表示性能问题。
Note that semaphore timeouts do not always indicate a performance problem.
在内核中可以使用互斥锁来实现信号量行为。
Mutexes are available in the kernel as a way to accomplish semaphore behavior.
一个文本文件，显示被争用的信号量。
以有组织的方式登记信号量代码。
Have an organized approach towards registering semaphore codes?
使用不同类型的信号量类
“showstat”命令将报告信号量超时信息。
The 'show stat' command will record semaphore timeout information.
semflg是这个新信号量集的权限。
semid是信号量集的标识符。
lpName是信号量的名称。
nsems是这个信号量集中信号量的数量。
LinuxPOSIX信号量使用sem_post来发出一个事件信号量。
Linux POSIX semaphores use sem_post to post an event semaphore.
short sem_op; （信号量操作）
这会唤醒对这个信号量进行阻塞的所有线程。
这个函数创建信号量，并返回这个信号量的句柄。
This function creates the semaphore and returns the handle to the semaphore.
在成功打开信号量之后，这个函数就会返回这个信号量的句柄，这样就可以在后续的调用中使用它了。
Upon a successful opening, this function returns the handle to the semaphore so that it can be used in the subsequent calls.
例如，如果信号量编号为1到10，那么每个任务先锁住编号最低的信号量，然后依次锁住信号量，直到编号最高的信号量。
So, for example, if semaphores were numbered 1 to 10, each task would start by locking the lowest number first, working its way up to the highest numbered.
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