Huawei SmartLogger3000 User Manual page 32

SmartLogger3000
User Manual
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Issue 03 (2020-01-10)
DI Port
DI2
DI3
DI4
AI ports: analog input ports, which are used to connect to AI power grid scheduling
commands or environment monitoring sensors.
AI Port
AI1
AI2
AI3
AI4
PT ports: can connect to two PT100/PT1000 temperature sensors.
PT Port
PT1
PT2
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.
Copyright © Huawei Technologies Co., Ltd.
Description
2
12V
3
12V
4
12V
Description
Supports one channel of
1
voltage-type (0–10 V) AI signals.
GND
2 Support three channels of
current-type (0–20 mA or 4–20
GND
mA) AI signals.
3
GND
4
GND
Description
+ Can connect to a three-wire or
two-wire PT100/PT1000
–
temperature sensor.
 Three-wire: cable length < 2 m
GND
for PT100; cable length < 20 m
+
for PT1000

Two-wire: cable length < 2 m
–
for a PT temperature sensor
GND
2 Product Overview
24