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Appearance
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.
Appearance
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
●
USB port: supports USB2.0 for connecting to a USB flash drive.
Appearance
USB Port
Description
USB
After a USB flash drive is
inserted into the USB port,
you can perform local
maintenance operations on
the SmartLogger, such as
firmware upgrade and data
export.
●
COM ports: RS485 communications port, supporting three independent RS485
channels and the access of devices that comply with the Modbus-RTU, IEC103,
or DL/T645 protocol.
SmartLogger3000
User Manual
2 Product Overview
Issue 10 (2022-08-20)
Copyright © Huawei Technologies Co., Ltd.
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