Micro Technic PV-5127A user manual PC/104 interface, Address Read/write Function

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Users Manual & Installation Guide

PV- 5127: Power supply module with UPS

PC/104 interface

The PV-5127 has a software interface where the CPU can read status information and perform a power-off through the PC/104 bus. The power-off can be delayed up to 253 seconds, so that the UPS monitoring can start the delayed power-off, then start a shutdown of the operating system, and the actual power-off happens after the operating system has finished shutting down.

When a delayed power-off has been initiated, the software can later cancel or modify it. This means that the delayed power-off can be used as a software watchdog: If the software e.g. once every second starts a power-off specifying a delay of 10 seconds, the system is continuously kept on. If, because of a software error, the refreshing of the delayed power-off stops, the PV-5127 will power off the system in 10 seconds. If mains is present and the system temperature is OK, the PV- 5127 will turn on again two seconds later, ensuring a clean reboot.

This interface is used by the PV-5127 UPS minidriver for Windows 2000/XP. You only need the following information if you want to write your own UPS monitoring or watchdog software.

To the CPU, the PV-5127 appears as a fixed block of eight I/O addresses at 250h-257h. It doesn’t use any memory addresses, IRQs, or DMA channels.

 

Address

Read/write

Function

 

 

250h

read only

SIGNATURE

 

 

 

 

251h

read only

STATUS

 

 

252h

read only

BAT_STATUS

 

 

253h

read only

RS232_STATUS

 

 

254h

read/write

SHUTDOWN

 

 

255h

-

Reserved

 

 

256h

-

Reserved

 

 

257h

-

Reserved

 

SIGNATURE (port 250h, read only):

This port always reads as 37h. Software can read this register to verify the presence of a PV-5127 adapter.

STATUS (port 251h, read only): 0000bmss

This port contains the following read-only status information bits.

ss(STATUS bit 1-0): System temperature, according to the internal or external system temperature sensor.

ss=00: Too cold

ss=01: Cool

ss=10: Warm

ss=11: Too hot

m (STATUS bit 2): Mains present.

m=0: Mains voltage not present, running on battery

m=1: Mains voltage present

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Contents Micronix PC/104 Power Supply Table of contents PV- 5127 Power supply module with UPS Revision number Reason for change Date Revision historyGeneral information AccessoriesOrdering codes Model no DescriptionDescription Block DiagramPV- 5127 Power supply module with UPS Connectors Mode LED color Function Heater and fan control and external LEDs connector CN2RS232 connector CN3 LED name Pin no FunctionExt. sensor connector J2 ATX connector CN10Batt. sensor connector J1 Pinheader ST3PC/104 bus connector CN1 Too cold System temperatureCool WarmPV- 5127 Power supply module with UPS UPS Control Pson signalPin Function RS232PV-5127 CN3 When the system is too hot Mains failure Battery low StatusAddress Read/write Function PC/104 interfaceSignature port 250h, read only Status port 251h, read only 0000bmssShutdown port 254h, read/write Batstatus port 252h, read only nn0cctvvRS232STATUS port 253h, read only uuuu0000 Software compatibility SoftoffBattery voltages Battery monitor and chargerST1 installed Lead-acid chargerBattery LED Meaning Installed on J1 Charger function5V+12V outputs ATX and Softoff state machinesMain DC/DC converter and 5V STB Softoff state machine ATX on/off state machineIt can be illustrated like this Output power Technical dataInput voltage Output VoltageEnvironmental specifications Mechanical layout Settings and connections Installation guidePrecautions to ESD Connection number in KL3 Function Connection in KL2 FunctionUinV TcapC Tamb max.C PoutW Thermal considerationsDifferences between PV-5127 and PV-5127A Block diagram of the PV-5127A

PV-5127A, PV-5127 specifications

The Micro Technic PV-5127 and PV-5127A models represent a significant achievement in the field of precision measurement instruments, specifically designed to enhance efficiency and accuracy in various industrial and scientific applications. These devices are characterized by their robust construction, user-friendly interface, and advanced technological features that cater to the needs of professionals.

One of the standout features of both the PV-5127 and PV-5127A is their high-resolution digital display, which provides clear readouts of measurements, ensuring that users can easily interpret data in real time. The devices boast a wide measurement range, allowing them to perform accurate readings across various parameters, including voltage, current, and resistance. This versatility makes them ideal for use in labs, research facilities, and fieldwork.

The PV-5127 and PV-5127A incorporate advanced microprocessor technology, ensuring precise measurements and quick response times. This technology enhances the instrument's ability to perform complex calculations, making it suitable for various applications, including electronics testing, industrial maintenance, and educational purposes.

Both models feature intuitive controls, enabling users to navigate functions effortlessly. The user interface is designed for simplicity, minimizing the learning curve for new users while empowering seasoned professionals to utilize the instruments to their full potential. Additionally, the PV-5127A includes enhanced features such as data logging and connectivity options, allowing users to transfer data to computers or other devices for further analysis.

Durability is another notable characteristic of these models. Constructed to withstand harsh working conditions, the PV-5127 and PV-5127A are built with high-quality materials that protect against impacts and environmental factors, ensuring longevity and reliability.

Power efficiency is also a critical aspect, as both models offer low power consumption without compromising performance. This feature is particularly important for users who rely on portable devices for extended periods.

In summary, the Micro Technic PV-5127 and PV-5127A models are sophisticated measurement instruments that combine advanced technology with user-friendly design. Their versatility, durability, and efficiency make them valuable tools for professionals across various fields, enhancing productivity and accuracy in measurement tasks. Whether in a laboratory setting or an industrial environment, these devices stand out as reliable companions for precise measurements.
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