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E821-DTU(2I2-400SL)

[Collection type]:Analog

[Collection range]:0mA~20mA

[Interface Type]:RS485

[Number of acquisition channels]:4-channels

[Weight]:245g±5g

[Introduction]:E821-DTU (2I2-400SL) is a remote control device that supports analog follow and control acquisition functions. It supports wireless Modbus RTU protocol in control acquisition mode. The device is simple to use, and users can easily and quickly integrate into their own systems to achieve remote control based on the 433MHz frequency.

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Name The main parametersData
RFStandard frequency band433MHz
Transmit power 1W
Hardware Product size (H*W*D) 109*175*35mm±1mm
product weight  245g±5g
Operating temperature  -20℃~+70℃
storage temperature  -40℃~+85℃
Working humidity  5%~95%
Storage humidity  1%~95%
Operating Voltage  8V~28V
Current acquisition range  0mA~20mA
Current output range 0mA~20mA
Precision0.2%
Data interface  RS485:9600bps
SoftwareOperating modeFollowing transmit/receive mode, dataacquisition mode, configuration mode
Configuration command Modbus RTU

CH-E821-DTU(2I2-400SL)_Size

No. PortsFunction Description
1 Ai1+Analog signal input channel 1 positive The input pin of analog signal, which forms input with AI1-
2Ai1- Analog signal input channel 1 negativeUse in pair withAI1+
3Ai2+ Analog signal input channel 2 positiveThe input pin of analog signal, which forms input with AI1-
4Ai2-  Analog signal input channel 2 negative Used in pairs withAI2-
5 RESETReset button Long press for 5s to reset the device address
6485_ARS_485 interfaceA RS_485 interface Ais connected to device Ainterface
7 485_B RS_485 interface B RS_485 interface B is connected to device B interface
8 PE GroundedGrounded
9 GNDPress-line power input negativePower reference ground
10 VCC Press-line power input positive Power input terminal, DC 8V~28V, 12V/24V is recommended
11 PEGroundedGrounded
12PWR/RSTPower/reset success indicationTwo-color light, blue light is power indicator, green light is resetsuccess indicator
13A1Wireless transmit/receive data indicationTwo-color light, blue light is transmitting data indicator, green lightis receiving data indicator (channel 1)
14A0 Wireless transmit/receive data indicationTwo-color light, blue light is transmitting data indication, green lightis receiving data indication (channel 2)
15 ANTAntenna interface  433MHz antenna
16M1 and M0Mode selection M1M0(00, 01, 10, 11)
17 AO2-  Analog signal output channel 2 negative  Used in pairs withAO-
18 AO2+  Analog signal output channel 2 positiveThe output pin of the analog signal forms an output with AO2-
19 AO1- Analog signal output channel 1 negative Used in pairs withAO+
20 AO1+  Analog signal output channel 1 positive  The output pin of the analog signal forms an output with AO1-
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产品
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Interface Acquisition
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TCP/IP Ebyte
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E821-DTU(2I2-400SL) RS485 Analog - 4 working modes - - - 109*175*35mm±1 4-channel analog high-precision acquisition
E821-RTU(0400-ETH) RS485 /Ethernet Digital signal Support Support - - - 108*75*37 Modbus TCP/RTU
  • E821-DTU(2I2-400SL)

    产品型号:E821-DTU(2I2-400SL)

    Interface :RS485

    Acquisition Type :Analog

    TCP/IP :-

    Ebyte Cloud :4 working modes

    - :-

    - :-

    - :-

    Size :109*175*35mm±1

    Feature:4-channel analog high-precision acquisition

    PDF :

    购买:

  • E821-RTU(0400-ETH)

    产品型号:E821-RTU(0400-ETH)

    Interface :RS485 /Ethernet

    Acquisition Type :Digital signal

    TCP/IP :Support

    Ebyte Cloud :Support

    - :-

    - :-

    - :-

    Size :108*75*37

    Feature:Modbus TCP/RTU

    PDF :

    购买:

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