Denso Power Net Terminal BHT-7500 Spezifikationen PDF herunterladen (Seite 172)

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Chapter 10. Sleep Function

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10.1 Sleep Function

The BHT supports the sleep function that automatically interrupts program execution if no

event takes place within the specified length of time in the BHT, thereby minimizing its power

consumption. Upon detection of any event, the BHT in the sleep state immediately starts the

interrupted user program.

By using the

OUT statement, you may set the desired length of time to the sleep timer within

the range from 0 to 25.5 seconds in increment of 100 ms. The default is 1 second.

When setting the sleep timer, the

OUT statement also copies (assigns) the set value to its inter-

nal variable. The sleep timer immediately starts counting down the value assigned to the inter-

nal variable, -1 per 100 ms. If the value becomes 0, the BHT goes into a sleep.

Note that the sleep time will not count in any of the following cases. When the BHT exits from

any of them, the value preset to the sleep timer will be assigned to the internal variable again

and the sleep timer will start counting.

• While a communications device file is opened by an

OPEN "COM:" statement.

• During execution of a SEARCH, DATE$, or TIME$ function

• When a

TIMEA, TIMEB, or TIMEC function returns a nonzero value.

• When the bar code device file is opened by the

OPEN "BAR:" statement under any of the

following conditions:

- With the continuous reading mode specified

- With the momentary switching mode or auto-off mode specified, and with the trigger switch

held down

- With the alternate switching mode, and with the illumination LED (laser beam in the BHT-

6500/BHT-7500) being on

• When any key is held down.

• When the LCD backlight is on.

• When the beeper is beeping.

• When the vibrator is working. (BHT-6500/BHT-7000/BHT-7500 only)

• When the BHT is updating data on the screen.

• When the BHT is writing data into a data file.

• When a register variable is undergoing change.

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