Digital I/O Function (Digital Port) - ITech IT8000 Series User Manual

5.11 Digital I/O Function (Digital Port)

The IT8000 series load supports digital I/O function. The user can realize logic
control over high and low level input or output by related configurations in the
system menu, namely general digital signal I/O function. In addition to general
digital I/O functions, this series can be customized to meet different special
needs through different pin wirings. For example, you can connect a pin to an
external instrument, and set a fixed pulse or level signal for the external instru-
ment. Once the external instrument fails, output this pulse or level signal. After
the instrument identifies this signal, it controls whether the load input is reduced
to 0 or whether the [On/Off] is switched off based on related settings.
The rear panel of the instrument has a green 8-pin terminal (For position, see
1.5 Rear Panel
function. These pins are bi-directional I/O interfaces. For hardware index infor-
mation, see
port the input or output of pulse and high and low level. Different pins can
achieve different functions.
Table 5–2 Hardware parameters of the I/O interface
Voltage range
Maximum low level output
voltage
Maximum low level input
voltage
Typical high level output
voltage
Typical low level current
Minimum high level input
voltage
Level rise slope
Level fall slope
Introduction). The terminal is a wiring terminal with digital I/O
Table 5–2 Hardware parameters of the I/O
-5V to +15V
Low Level (V)
0.65
0.9
1
0.8V
5V
0V
1.6V
10us
2us
Copyright © Itech Electronic Co., Ltd.
Basic Operation
interface. The pins sup-
Maximum current
(mA)
10
50
100
0.5mA
78