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Copyright©2012–2023, Chengdu Ebyte Electronic Technology Co., Ltd.

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02 – Failed to send data
03 – Data sent successfully
04 – JOIN succeeded (appears only in the first JOIN process)
05 – JOIN failed (appears only during the first JOIN process)
06 – The network may be abnormal (Link Check result)
07 – Send data successfully, no downlink
08 – Send data successfully, there is downlink

description

example

AT+CSTATUS?
+CSTATUS=03
OK

Precautions

Query the current status of the device

command
character

command
type

command format

response

CJOIN

(

Set Join

)

test
command

AT+CJOIN=?

+CJOIN:<ParaTag1>,[ParaTag2],

[ParaTag4
]
OK

query
command

AT+CJOIN?

+CJOIN:<ParaValue1>,[ParaValue2],

[

ParaValue4]
OK

set
command

AT+CJOIN=<ParaValue1>,

[ParaValue2],...
[ParaValue4]

If the input is valid, it first returns OK, then
starts automatic authentication , and returns
the authentication result.

+CJOIN:OK Authentication succeeded
+CJOIN:FAIL Authentication failed

Parameter
Description

<ParaTag1>, [ParaTag2], ... [ParaTag4]: the names of authentication parameters 1,
2, ... 4;
[ParaValue1], [ParaValue2], ... [ParaValue4]: the parameter values of authentication
parameters 1, 2, ... 4;
<ParaTag1>, means to execute the JOIN operation, the value range of ParaTag1:
0 – stop JOIN
1 – Start JOIN and start the JOIN process again. For a module with hot restart
enabled, executing this operation will clear the saved JOIN context parameters.

[ParaTag2] indicates whether to enable the automatic JOIN function. The factory
value is 1, and the value range of ParaTag2:
0 – disable automatic JOIN
1 – Automatic JOIN. After the module enters the transparent transmission mode, it
will automatically start the JOIN.

[ParaTag3] indicates the JOIN period, the value range: 7~255, the unit is s.
Factory default: 8.

Return
value
description

Summary of Contents for E78-DTU

Page 1: ...E78 DTU 900LN22...

Page 2: ...on 10 Chapter Five Technical Specifications 11 5 1 Model specifications 11 5 2 General specification parameters 11 Chapter Six Working mode 11 6 1 Transparent transmission mode 12 6 2 Configuration mo...

Page 3: ...ansparent transmission and active polling supports serial port upgrade and remote configuration It is an excellent choice for current IoT applications 1 2 Features Support transparent transmission Sup...

Page 4: ...ess parameters through the AT command or the configuration tool note different types of devices have different region files the default factory region file of the device is EU868 if customers need to...

Page 5: ...te network access parameters through the configuration tool On ChirpStack Application Server the gateway data records are as follows The node data records of ChirpStack Application Server are as follo...

Page 6: ...An example of access under transparent transmission mode is as follows Under transparent transmission mode APP server receives data below...

Page 7: ...Note Please refer to LORAWAN Node Gateway TTN Server Configuration Tutorial for TTN device creation and corresponding configuration process...

Page 8: ...dicator Red always on when the power is on 4 LINK LED Status Link Indicator Yellow always on when connected to the gateway 5 DATA LED Data sending and receiving indicator Yellow flashing when sending...

Page 9: ...Copyright 2012 2023 Chengdu Ebyte Electronic Technology Co Ltd 9 impedance 50 Unit mm...

Page 10: ...DC power supply is recommended 4 2 RS485 interface definition E78 DTU 900 LN22 can use the 485_A terminal and 485_B terminal in to connect to the A terminal and B terminal of the RS 485 of the device...

Page 11: ...duct Size 100 84 25mm See installation dimensions for details 2 product weight 120g Weight tolerance 5 g 3 Operating temperature 40 85 Meet the needs of industrial use 4 Antenna Impedance 50 Standard...

Page 12: ...ransmission mode Types Send Users can input data through the serial port and the module will start wireless transmission Receive The wireless receiving function of the module is turned on and the wire...

Page 13: ...e configured through the configuration software or AT command This mode supports HEX mode supports automatic modbus CRC check and can be configured with 64 polling commands 7 3 Remote configuration Af...

Page 14: ...Copyright 2012 2023 Chengdu Ebyte Electronic Technology Co Ltd 14 At this time power on the device to be upgraded to upgrade itself...

Page 15: ...enter the configuration state Arrow 3 After entering the configuration click to read the device parameters Arrow 4 After modifying the parameters click to save the modified configuration Arrow 5 Clic...

Page 16: ...o select the number of times a single packet of data is sent 1 8 Arrow 12 Select the CLASS level of the device CLASSA CLASSC Arrow 13 Select the network access method of the device OTAA ABP Arrow 14 E...

Page 17: ...r the specific command to be polled in the input box Arrow 23 Click to add instructions to the buffer Arrow 24 Select the instruction in the buffer area and click to modify the instruction to synchron...

Page 18: ...AA ABP CDEVEUI Set to read DevEUI when OTAA is connected to the network CJOIN MODE Set the read Join mode OTAA ABP CDEVEUI Set to read DevEUI when OTAA is connected to the network CAPPEUI Set to read...

Page 19: ...Enable or disable ADR AT CADR 1 enable AT CADR 0 disable default is enable CRXP Set the parameters for reading the receiving window CRX1DELAY Set the delay for reading TX and RX1 CSAVE save configurat...

Page 20: ...Command character command type Command format Response CGSN read product serial number identification query command AT CGSN CGSN sn OK Parameter Description sn product serial number identification Re...

Page 21: ...nd type command format response CJOIN MODE Set the Join method Test command AT CJOINMODE CJOINMODE mode OK query command AT C JOIN MODE CJOINMODE mode OK Set command AT CJOINMODE mode OK Parameter Des...

Page 22: ...BCCDD00112233 OK Precautions Used when OTAA set or read AppEUI return Y1Y2 Y8 hexadecimal format value 8 bytes command character command type command format response CAPPKEY Set AppKey test command AT...

Page 23: ...and AT CAPPSKEY CAPPSKEY AppSKey length is 32 query command AT CAPPSKEY value CAPPSKEY value OK set command AT CDEVADDR value OK Parameter Description value Node AppSKey Return value description examp...

Page 24: ...ask of 8 15 channels is 0002 the corresponding mask of 16 23 channels is 0004 and so on the frequency corresponding to the specific channel you need to check the region protocol For example channels 0...

Page 25: ...de command character command type command format response CCLASS set Class test command AT CCLASS CCLASS class branch para1 para2 para3 para4 OK query command AT CCLASS CCLASS class OK set command AT...

Page 26: ...ns OK then starts automatic authentication and returns the authentication result CJOIN OK Authentication succeeded CJOIN FAIL Authentication failed Parameter Description ParaTag1 ParaTag2 ParaTag4 the...

Page 27: ...ximum value the length of bytes allowed to be transmitted at different rates is different see the LoRaWan protocol for details and 0 means sending an empty data packet Payload Hexadecimal 2 characters...

Page 28: ...on type Bit0 0 unconfirm 1 confirm Bit1 0 not ACK 1 ACK Bit2 0 not carried 1 carried indicating whether the LINK command response is carried in the downlink data Bit3 0 not carried 1 carried indicatin...

Page 29: ...h are only valid for this transmission and need to be reset after re entering after exiting Return value description OK means to enter the transparent transmission mode Return value description in tra...

Page 30: ...nd type command format response CCONFIRM Set Uplink Transmission Type test command AT CCONFIRM CCONFIRM value OK query command AT CCONFIRM DRX Length Payload OK set command AT CCONFIRM value OK Parame...

Page 31: ...description example AT CDATARATE 1 OK Precautions It needs to be set before sending data and it will be invalid after ADR is enabled command character command type command format response CRSSI query...

Page 32: ...sending data command character command type command format response CRM Set reporting mode test command AT CRM CRM reportMode reportInterval OK query command AT CRM CTXP reportMode reportInterval OK...

Page 33: ...cter command type command format response CLINKCHECK verify network connection test command AT CLINKCHECK CLINKCHECK value OK set command AT CLINKCHECK value OK Parameter Description value enable cont...

Page 34: ...as follows ADR enable control the factory value is 1 0 ADR disabled 1 ADR enabled Return value description example AT CADR 1 OK Precautions Needs to be setup before sending data ADR is enabled by def...

Page 35: ...alue when not set command character command type command format response CSAVE Save MAC parameter settings test command AT CSAVE CSAVE OK set command AT CSAVE OK Parameter Description MType 0 unconfir...

Page 36: ...e communication module Before the restart is complete no subsequent AT commands will be received important statement 1 Ebyte reserves the right of final interpretation and modification of all contents...

Page 37: ...About Us Technical support support cdebyte com Documents and RF Setting download link https www cdebyte com Thank you for using Ebyte products Please contact us with any questions or suggestions info...

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