User's Manual

Table Of Contents
SmartLogger3000
User Manual
2 Product Overview
Issue 04 (2020-03-11)
Copyright © Huawei Technologies Co., Ltd.
17
DI ports: digital input ports, which are used to connect to DI power grid scheduling
commands or alarm signals.
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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
DO ports: digital output ports, supporting two relay outputs. A DO port supports a
maximum of 12 V signal voltage.
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DO Port
Description
DO1
NC
The NC/COM is a normally
closed contact.
The NO/COM is a normally
open contact.
COM
NO
DO2
NC
COM
NO