User's Manual

Table Of Contents
SmartLogger3000
User Manual
2 Product Overview
Issue 04 (2020-03-11)
Copyright © Huawei Technologies Co., Ltd.
25
DI ports: digital input ports, which are used to connect to DI power grid scheduling
commands or alarm signals.
Appearance
DI Port
Description
DI1
1
Can connect to four passive dry
contact signals.
12V
DI2
2
12V
DI3
3
12V
DI4
4
12V
AI ports: analog input ports, which are used to connect to AI power grid scheduling
commands or environment monitoring sensors.
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AI Port
Description
AI1
1
Supports one channel of
voltage-type (0–10 V) AI signals.
GND
AI2
2
Support three channels of
current-type (0–20 mA or 4–20
mA) AI signals.
GND
AI3
3
GND
AI4
4
GND
PT ports: can connect to two PT100/PT1000 temperature sensors.
Appearance
PT Port
Description
PT1
+
Can connect to a three-wire or
two-wire PT100/PT1000
temperature sensor.
Three-wire: cable length < 2 m
for PT100; cable length < 20 m
for PT1000
Two-wire: cable length < 2 m
for a PT temperature sensor
GND
PT2
+
GND