A.Smartio CP-104UL board will check the line status (CTS) before transmitting data if the RTS/CTS flow control feature is set to Enable in the configuration or application program. Refer to the Connection Cable and Cable Wiring chapter for proper wiring options, and check the line status of the suspected port using the diagnostic LED indicators on the mini tester.

B.The board’s control application might not be correctly written according to the corresponding API of the operating system. To verify the problem, run an existing application known to be good, or use utilities provided by Moxa, such as Pcomm Terminal Emulator or HyperTerminal under Windows NT/2000/XP and Windows 95/98.

Windows NT

This section is specific for troubleshooting under Windows NT. For general problems and solutions, please see the previous section, General Troubleshooting.

1.After the system reboots, the error message, “Another driver in the system, which did not report its resources, has already claimed the interrupt used by xxx.” appears in the Event Log.

This indicates the MOXA board was found, but the IRQ conflicts with another adapter. Check the PCI BIOS IRQ settings first, and then select an IRQ that is available.

2.After the system reboots, the error message, “Cannot find any configured MOXA Smartio/Industio series board!” appears in the Event Log.

Make sure the PCI board is seated firmly in the expansion slot.

3.The COM number of the Smartio CP-104UL board (Bus No=x, Dev No=x, Port1=COMx), with device number xx, conflicts with others.

The COM numbers for different boards are in conflict. Change the COM number mappings for the MOXA boards.

4.Windows NT system panics (blue screen).

The possible reason is an IRQ or I/O address conflict with other ISA Bus adapters, such as LAN or SCSI boards, or with the system BIOS. Refer to the corresponding problem in the previous section, “General Troubleshooting,” for solutions.

Windows 95/98

This section is specific for troubleshooting under Windows 95/98. For general problems and

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Moxa Technologies CP-104UL user manual Windows NT system panics blue screen

CP-104UL specifications

The Moxa Technologies CP-104UL is a versatile and reliable serial-to-USB adapter designed for a wide range of industrial applications. This device aims to simplify the process of connecting serial devices to a USB port, making it an invaluable tool for engineers and technicians who need fast and effective communication with their legacy serial devices.

One of the main features of the CP-104UL is its ability to support four isolated RS-232 serial ports. This high level of isolation helps protect sensitive equipment from electrical noise and transients, which is critical in many industrial environments. The device supports a data rate of up to 921.6 kbps, allowing for high-speed communication and efficient data transfer. This feature is particularly useful in situations where quick data retrieval is essential, such as in real-time monitoring and control systems.

The Moxa CP-104UL utilizes advanced technologies, such as the use of Virtual COM Port drivers. These drivers provide a seamless interface between the USB adapter and the operating system, making it appear as if the serial ports are native to the system. This ensures compatibility with various applications without the need for significant configuration adjustments.

Another noteworthy characteristic of the CP-104UL is its robust construction and environmental ratings. The device is designed to withstand harsh industrial conditions, making it suitable for use in factories, process plants, and other challenging environments. Its wide operating temperature range of -40 to 75 degrees Celsius ensures reliable performance even in extreme temperatures.

Additionally, the CP-104UL supports various operating systems, including Windows, Linux, and macOS. This cross-platform compatibility provides users with flexibility, allowing them to integrate the adapter into their systems without worrying about compatibility issues.

The device is also equipped with features such as built-in surge protection, ensuring that the connected equipment remains safe from electrical interference. Furthermore, its compact design and lightweight form factor make it easy to deploy in various installation scenarios, including wall mounting or direct attachment to devices.

In summary, the Moxa Technologies CP-104UL is an essential tool for anyone working with serial devices in industrial settings. Its multiple features, advanced technologies, and robust characteristics make it an ideal solution for converting serial connections to USB, ensuring reliable communication in a variety of applications.