EXT I/O
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HBT3000 series user manual
Copyright © Qingdao Hantek Electronic Co., LTD
52
7.1
Input terminal function
⚫
𝑻𝑹𝑰𝑮
External trigger input, when the trigger source is set to external, it will change
from a high-level signal to a low-level signal and trigger a measurement at the
edge of the jump. When triggered internally, trigger measurement cannot be
performed.
⚫
𝑳𝑶𝑨𝑫𝟎~𝑳𝑶𝑨𝑫𝟔
The panel display number used for external input selection calls. When the
number is selected, a signal is input, and the device reads the configuration
corresponding to the selected panel display number for measurement. If the
number value does not change when input, perform a measurement when
triggered externally.
⚫
𝟎𝑨𝑫𝑱
External input control zeroing function, when the signal changes from high level
to low level, it triggers the application program to perform a zeroing function in
the form of an interrupt.
⚫
𝑷𝑹𝑰𝑵𝑻
External input control screenshot function, when the signal changes from high
level to low level, it triggers the application program to execute a screenshot
function in the form of an interrupt.
⚫
𝑪𝑨𝑳
External input control correction function, when the signal changes from a high
level to a low level signal, it triggers the application program to perform a
correction function in the form of an interrupt.
⚫
𝑴𝑨𝑵𝑼
External input control comparator function, default to high level. When the level
changes (such as high to low or low to high), it triggers the application program
to read the current level status in the form of an interrupt. If an interrupt is
generated and the level is low, the comparator function is turned on. If it is high,
the comparator function is turned off.
7.2
Output terminal function
⚫
𝑬𝑶𝑴
The measurement end signal is divided into HOLD mode and PULSE mode. In the
external trigger mode, after the measurement is completed, the HOLD mode
keeps the EOM at a low level and continues until the next measurement begins
(when the external trigger is generated) to recover to a high level. The PULSE
mode outputs a configurable width of low-level pulses and then returns to a high
level state; In the internal triggering mode, after the measurement is completed,
the HOLD mode outputs a fixed width of low-level pulses according to the
