B&R MAPPC700A-ENG, Руководство пользователя

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Commissioning • General instructions for performing temperature tests
Panel PC 700 with 945GME N270 CPU board User's Manual V 1.16
11.3 Evaluating the temperatures in an operating system other than Windows
For applications that don't use Windows, the temperatures can be evaluated using the B&R
implementation guide. In addition to the implementation guide, there are also programs available
in MS-DOS.
The implementation guide only describes the device-specific functions and not the main
functions of the sample programs.
If code from the sample programs is used, please observe the notes in the implementation guide
regarding the TODO statements, I/O access functions, etc.
11.4 Evaluating the measurement results
The maximum temperature value recorded by each sensor must not exceed the temperature
limits specified in the user's manuals.
If the temperature tests cannot be performed in a climate controlled chamber, they can also be
performed in an office environment. In this case, however, it is necessary to measure the
ambient temperature. Experience at B&R has shown that values measured on passive systems
(systems without a fan kit) can be projected linearly based on the ambient temperature. In order
to be able to project the temperature values for systems with a fan kit, the fans must be running.
It is also important to consider the speed, etc.
If the temperature tests are performed in a climate controlled chamber with fans, the devices will
be cooled by these fans, and the results will be skewed. The measurement results for passive
devices would therefore be unusable. In order to obtain accurate results in climate controlled
chambers with fans, the chamber fans must be turned off and the device must be allowed to run
for a sufficient amount of time (several hours) before beginning the test.
Information:
Serial loopback adapters are relatively easy to create yourself. Simple connect
several pins on the serial interface with wires.
Information:
Sample programs and implementation guides for any B&R industrial PC or Power
Panel can be downloaded free of charge from the B&R website (
www.br-
automation.com ).