Appendix A Watchdog Timer

A.1 Programming the Watchdog Timer

The PCE-5120's watchdog timer can be used to monitor system software operation and take corrective action if the software fails to function within the programmed period. This section describes the operation of the watchdog timer and how to program it.

A.1.1 Watchdog timer overview

The watchdog timer is built in to the super I/O controller W83627HF. It provides the following functions for user programming:

Can be enabled and disabled by user's program

Timer can be set from 1 to 255 seconds or 1 to 255 minutes

Generates an interrupt or resets signal if the software fails to reset the timer before time-out

A.1.2 Jumper selection

The JWDT1 jumper is used to select reset in the event the watchdog timer is tripped. See Chapter 1 for detailed jumper settings.

A.1.3 Programming the Watchdog Timer

The I/O port address of the watchdog timer is 2E(hex) and 2F(hex).

2E (hex) is the address port. 2F(hex) is the data port. You must first assign the address of register by writing an address value into address port 2E (hex), then write/read data to/from the assigned register through data port 2F (hex).

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Advantech PCE-5120 user manual Programming the Watchdog Timer, Watchdog timer overview, Jumper selection

PCE-5120 specifications

The Advantech PCE-5120 is a cutting-edge industrial computer designed for demanding applications in various sectors such as automation, transportation, and manufacturing. It stands out for its robust performance, versatile features, and exceptional reliability, making it an ideal choice for industrial environments.

One of the key features of the PCE-5120 is its powerful processing capability. Equipped with the latest Intel processors, it offers impressive computing performance to handle complex tasks and data processing. This capability is essential for applications that require real-time data analysis and decision-making.

The PCE-5120 is built to withstand harsh conditions commonly found in industrial settings. Its rugged design includes an extended temperature range, vibration resistance, and electromagnetic compatibility. This durability ensures that the system operates reliably even in challenging environments, reducing the risk of downtime.

Another notable characteristic of the PCE-5120 is its extensive connectivity options. It supports a variety of interfaces including USB, Ethernet, and serial ports, allowing for seamless integration with different devices and networks. This flexibility enables users to connect various sensors, controllers, and other peripherals, enhancing the system's functionality.

The PCE-5120 also features expandability options through its PCIe and PCI slots. Users can customize the system by adding additional cards for specialized tasks such as additional I/O ports, communication interfaces, or even graphics capabilities. This modular design ensures that the system can be tailored to meet specific application requirements.

In addition to its hardware capabilities, the PCE-5120 is backed by Advantech’s comprehensive software solutions. The system supports various operating systems, including Windows and Linux, providing users with the freedom to choose their preferred platform. Furthermore, Advantech offers a range of software tools for remote management and monitoring, helping users maintain system performance and security.

The PCE-5120 is also designed with energy efficiency in mind. Its advanced power management features help reduce energy consumption, making it not only an environmentally friendly choice but also a cost-effective solution for long-term operations.

In summary, the Advantech PCE-5120 is a powerful and reliable industrial computer that combines robust processing capabilities, extensive connectivity, and excellent durability. With its expandability and software support, it is well-suited for a wide range of industrial applications, making it a valuable asset for businesses looking to enhance their operational efficiency.