The gate input, when low, will force the output high. When the gate input goes high, the counter will start from the initial count. You can thus use the gate input to synchronize the counter.

With this mode the output will remain high until you load the count register. You can also synchronize the output by software.

MODE 3 – Square Wave Generator

This mode is similar to Mode 2, except that the output will remain high until one half of the count has been completed (for even num- bers), and will go low for the other half of the count. This is accom- plished by decreasing the counter by two on the falling edge of each clock pulse. When the counter reaches the terminal count, the state of the output is changed, the counter is reloaded with the full count and the whole process is repeated.

If the count is odd and the output is high, the first clock pulse (after the count is loaded ) decrements the count by 1. Subsequent clock pulses decrement the count by 2. After time-out, the output goes low and the full count is reloaded. The first clock pulse (following the reload) decrements the counter by 3. Subsequent clock pulses decre- ment the count by two until time-out, then the whole process is repeated. In this way, if the count is odd, the output will be high for (N+1)/2 counts and low for (N-1)/2 counts.

MODE 4 –Software-Triggered Strobe

After the mode is set, the output will be high. When the count is loaded, the counter will begin counting. On terminal count, the output will go low for one input clock period then go high again.

If you reload the count register during counting, the new count will be loaded on the next CLK pulse. The count will be inhibited while the GATE input is low.

MODE 5 – Hardware-Triggered Strobe

The counter will start counting after the rising edge of the trigger input and will go low for one clock period when the terminal count is reached. The counter is retriggerable.

Appendix A 8524 Counter Chip Functions 57

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Advantech PCI-1710 Mode 3 Square Wave Generator, Mode 4 -Software-Triggered Strobe, Mode 5 Hardware-Triggered Strobe
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PCI-1710 specifications

The Advantech PCI-1710 is a highly regarded data acquisition card designed for a wide array of industrial automation and control applications. Offering a robust combination of features and technologies, it is particularly valued for its versatility and high-performance capabilities in collecting and processing analog and digital signals.

At the heart of the PCI-1710 is its 16-bit resolution, which allows for precise measurement of analog signals. This feature is essential in applications that require accurate data capture, such as process monitoring, testing, and quality control in manufacturing environments. The card provides eight single-ended analog input channels, enabling users to connect multiple sensors and transducers simultaneously for comprehensive data gathering.

One of the standout characteristics of the PCI-1710 is its flexible input range, supporting both unipolar and bipolar configurations. This adaptability makes it suitable for a myriad of applications across different industries, including automotive, aerospace, and electronics. The card can also handle a sampling rate of up to 200 kS/s, allowing for rapid data acquisition critical in dynamic environments where timing is crucial.

In addition to its analog capabilities, the PCI-1710 boasts 8 digital input and 8 digital output channels. The digital I/O functions enable the card to serve as an interface for various control and monitoring tasks, further enhancing its utility in automation systems. This integration of analog and digital features within a single card streamlines system design, reducing the need for multiple components and improving reliability.

The PCI-1710 utilizes Advantech’s powerful DAQ software and drivers, ensuring seamless integration with a variety of operating systems and development environments. The comprehensive software support allows engineers to quickly set up data acquisition tasks and execute complex control algorithms without extensive programming, making it accessible for users with varying levels of technical expertise.

In summary, the Advantech PCI-1710 is a versatile data acquisition solution that combines high resolution, flexible input options, and robust digital I/O capabilities. Its capabilities make it ideal for a wide range of applications in industrial automation, monitoring, and testing. With its combination of performance, flexibility, and user-friendly software support, the PCI-1710 remains a popular choice for engineers and developers seeking reliable data acquisition solutions.
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