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Ebyte 230SL22, User Manual

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Chengdu Ebyte Electronic Technology Co., Ltd.

E90-DTU（900SL30）User Manual

Copyright©2012–2019,Chengdu Ebyte Electronic Technology Co., Ltd.

E90-DTU(900SL30)

Summary of Contents for 230SL22

Page 1: ...Chengdu Ebyte Electronic Technology Co Ltd E90 DTU 900SL30 User Manual Copyright 2012 2019 Chengdu Ebyte Electronic Technology Co Ltd E90 DTU 900SL30 ...

Page 2: ...r data rate 9 6 6 Current 9 6 7 TX and RX FIFO and sub packing method 9 7 Function Description 10 7 1 Fixed Transmission 10 6 2 Broadcast Transmission 10 6 3 Broadcast Address 11 6 4 Monitor Address 11 8 Operating mode 11 8 1 Normal mode Mode 0 12 8 2 WOR mode Mode 1 12 8 3 Configuration mode Mode 2 12 8 4 Sleep mode Mode 3 12 9 Register read and write control 13 9 1 Command format 13 9 2 Register...

Page 3: ...Chengdu Ebyte Electronic Technology Co Ltd E90 DTU 900SL30 User Manual Copyright 2012 2021 Chengdu Ebyte Electronic Technology Co Ltd 2 14 Application field 21 15 Operation notes 22 16 About us 22 ...

Page 4: ... length setting is available to support different real time and data packets It works in the ISM 868 915MHz band with a communication distance of up to 10km As a communication medium wireless data transceiver has the same scope as optical fiber microwave and bright line it provides real time and reliable data transmission of monitoring signals in private networks under certain special conditions w...

Page 5: ...ng command packets wirelessly Multi level relay networking can be realized which effectively extends communication distance for ultra long distance communication With temperature compensation circuit the frequency stability is better than 1 5PPM Operating temperature range 40 C 85 C to adapt to a variety of harsh working environment All aluminum alloy casing compact size easy installation and good...

Page 6: ...tart You need to prepare items below 1 First install the antenna for device then install the power supply and ensure that the dial switch is in the correct state The user can select the crimping method or the power adapter to supply power according to the requirements 2 Connect the DTU to computer via USB to RS 232 or USB to RS 485 converter etc ...

Page 7: ...bps check mode as 8N1 to realize transparent transmission 4 If customer needs to modify the parameters please dial the switch in the configuration mode and connect to the computer Open the E90 DTU SL configuration software you can modify the relevant parameters After completing the configuration you must restore the DIP switch status for communication Mode 0 Factory default Mode 2 Parameter config...

Page 8: ...lock RS 485 power interface Standard RS 485 interface and pressure line power interface 3 PWR LED Power LED Red lit when the power is on 4 TXD LED Transmit LED Yellow blinks when sending data 5 RXD LED Receive LED Yellow blinks when receiving data 6 DC power interface Power interface In line round hole outer diameter 5 5mm diameter 2 5mm 7 DIP switch DIP switch Controlled by working mode 8 Antenna...

Page 9: ...Chengdu Ebyte Electronic Technology Co Ltd E90 DTU 900SL30 User Manual Copyright 2012 2021 Chengdu Ebyte Electronic Technology Co Ltd 8 3 2 Dimensions 单位 mm ...

Page 10: ... E90 DTU can be connected to the 485_A terminal and 485_B terminal from with the RS 485 A terminal and B terminal of other device respectively Pin No Definition Function Description 1 VCC Crimping power interface positive 8 28V DC recommended 12V or 24V 2 GND Crimping power interface negative The power supply negative pole is connected to the system ground and the housing 3 485_B RS 485 interface ...

Page 11: ...fication parameter No Item Value Note 1 Size 82 62 25 mm See more in 3 2 Dimensions 2 Weight 130g 4 5 g 3 Temperature 40 85 Meet industrial request 4 Antenna impedance 50 Ω Standard 50 Ω characteristic impedance 5 Supply voltage 8 28V DC It is recommended to use 12V or 24V 6 Communication interface RS232 RS485 Standard DB9 hole 3 81 terminal block 7 Baud rate Default 9600 From 1200 115200 8 Addres...

Page 12: ...ransmission distance is also closer when the rate meets the requirements the lower air data rate the better quality 5 6 Current Model TX current mA Standby current mA 12V 24V 12V 24V E90 DTU 900SL30 386 196 21 13 Note It is recommended to retain more than 50 of the current margin when selecting the power supply which will help the data transceiver to work steadily for a long time 5 7 TX and RX FIF...

Page 13: ...gdu Ebyte Electronic Technology Co Ltd E90 DTU 900SL30 User Manual Copyright 2012 2021 Chengdu Ebyte Electronic Technology Co Ltd 12 6 Function Description 6 1 Fixed Transmission 6 2 Broadcast Transmission ...

Page 14: ...04 The purpose of monitor is realized 7 Operating mode There are four operating modes if low power consumption is not required for normal communication it is recommended to configure the data transceiver to the normal mode mode 0 The factory default is normal mode mode 0 Categories M1 M0 Notes Mode 0 Normal Mode ON ON Open UART Comm port and RF transparent transmission is on configuration over air...

Page 15: ...ransmission Receiving Wireless receiving is enabled its function is same as Mode 0 7 3 Configuration mode Mode 2 M0 ON M1 OFF device works in Mode 2 Transmitting Wireless transmission is off Receiving Wireless receiving is off Configuration Users can visit register to configure the working status 7 4 Sleep mode Mode 3 M0 OFF M1 OFF device works in Mode 3 Transmitting Wireless transmission is unava...

Page 16: ...d channel command start address length parameter Transmit C1 05 01 Return C1 05 01 09 Example 2 read module address network address UART and air data rate Transmit C1 00 04 Return C1 00 04 12 34 00 61 3 Configure temporary register Command C2 start address length parameter Reply C1 start address length parameter Example 1 Set channel as 0x09 command start address length parameter Transmit C2 05 01...

Page 17: ... air data rate is 38 4k 111 air data rate is 62 5k For the two modules that communicate with each other the serial port baud rate can be different and the verification method can also be different When transmitting large packets continuously users need to consider the data blocking caused by the same baud rate and data may even be lost It is generally recommended that both parties have the same ba...

Page 18: ... and takes it as the wireless transmitting target After the reply function is enabled if the target address is not the module itself the module will forward it once In order to prevent data return back it is recommended to use it in conjunction with the fixed point mode That is the target address is different from the source address When enabled wireless data will be monitored before it is transmi...

Page 19: ...r mode from mode 3 sleep mode or during the reset process the module resets the user parameters during which the AUX outputs low level Repeater networking rules 1 Forwarding rules the repeater can forward data in both directions between two NETIDs 2 In repeater mode ADDH ADDL is no longer used as the module address and it is used as a NETID forwarding pairing flag Figure 1 Primary repeater Node 1 ...

Page 20: ... values of each parameter is Network address 0 65535 Frequency channel 0 83 Network ID 0 255 Key 0 65535 When the user configures the repeater mode using the host computer special attention must be paid Since the parameters are in decimal mode in the host computer the module address and network ID need to be converted into hexadecimal For example if the network ID input by the transmitting end A i...

Page 21: ... 11 Programming the modem 11 1 Connection diagram Operating mode M1 M0 Note Configuration mode OFF ON Programming via the configuration software is available only in this mode 1 When programming please check whether the device is in correct operating mode as shown above 2 Users can modify parameters via E90 DTU SL configuration software ...

Page 22: ...Chengdu Ebyte Electronic Technology Co Ltd E90 DTU 900SL30 User Manual Copyright 2012 2021 Chengdu Ebyte Electronic Technology Co Ltd 21 11 2 Connection diagram in test and practical application ...

Page 23: ...ation networking transmission long distance anti inference E90 DTU 900SL30 RS232 RS485 868 915M 30 10 LoRa wireless configuration networking transmission long distance anti inference E90 DTU 170L30 RS232 RS485 170M 30 8 LoRa strong diffraction ability E90 DTU 433L30 RS232 RS485 433M 30 8 LoRa long distance anti inference E90 DTU 433L37 RS232 RS485 433M 37 20 LoRa 20km ultra long distance anti infe...

Page 24: ... home Internet of things transformation power load monitoring distribution network automation hydrological and hydrological forecasting water pipe network monitoring urban street lamps Monitoring air defense alarm control railway signal monitoring centralized control of railway water supply oil supply pipe network monitoring GPS system remote meter reading electronic crane automatic reporting seis...

Page 25: ...l port when electrified 6 When testing the data transceiver it must be connected with a matching antenna or a 50Ω dummy load otherwise it will easily damage the transmitter if the antenna is connected the distance of the human body from the antenna should preferably exceed 2 meters to avoid injury and cut Do not touch the antenna while launching 7 Wireless modem often have different communication ...

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