Dragino LTC2 Скачать руководство пользователя страница 31

Страница: 31 / 32

www.dragino.com

LTC2 LoRaWAN Temperature Transmitter

31 / 32

For a 3 wire PT100, there are two wire are shortcut, for example, as per above photo Channel 1,

there are two red wire , which are shortcut in PT100, connect them as the photo. The 3

wire

(white wire ) connect to the left pin of Channel

6.3

What is the frequency range of LTC2 LoRa part?

Different LTC2 version supports different frequency range, below is the table for the working

frequency and recommend bands for each model:

Version

LoRa IC

Working Frequency

Best Tune

Frequency

Recommend Bands

433

SX1278

Band2(LF): 410 ~525 Mhz

433Mhz

CN470/EU433

868

SX1276

Band1(HF):862~1020 Mhz

868Mhz

EU868/IN865/RU864

915

SX1276

Band1(HF):862 ~1020 Mhz

915Mhz

AS923/AU915/

KR920/US915

6.4

How to change the LoRa Frequency Bands/Region?

User can follow the introduction for

how to upgrade image

. When download the images, choose

the required image file for download.

Trouble Shooting

Order Info

Part Number:

LTC2

YYY

XX:

Probe Version.

✓

: Standard IP68 probe x 1

✓

: Low Temperature probe x 1

✓

: High Temperature probe x 1

✓

: Food Safety probe x 1

✓

: Flat Type probe x 1

✓

: No probe

YYY

: The default frequency band

✓

AS923

: LoRaWAN AS923 band

Содержание LTC2

Страница 1: ...com LTC2 LoRaWAN Temperature Transmitter 1 32 LTC2 LoRaWAN Temperature Transmitter User Manual Document Version 1 1 Image Version v1 0 Version Description Date 1 0 Release 2021 May 17 1 1 Correct Inde...

Страница 2: ...ow it works 8 2 3 Quick guide to connect to LoRaWAN server OTAA 8 2 3 1 Step 1 Create a device in TTN with the OTAA keys from LTC2 8 2 3 2 Step 2 Power on LTC2 12 2 4 Uplink Payload 13 2 4 1 Payload A...

Страница 3: ...5 Print last few data entries 25 3 16 Clear Flash Record 25 4 Battery How to replace 26 4 1 Battery Type 26 4 2 Replace Battery 26 4 3 Power Consumption Analyze 26 5 Firmware Change Log and Upload Fir...

Страница 4: ...red by 8500mA Li SOCI2 battery for long time measurement The battery can run 2 10 years depends on the network environment and working mode Each LTC2 has two internal 24 bit ADC interfaces and are cal...

Страница 5: ...cy measure of resistance and upload Battery Monitoring and upload 1 3 Applications Logistics and Supply Chain Management Food management Cold chains solution Industrial Monitoring and Control 1 4 Hard...

Страница 6: ...100 probe Installation Insert Cable Length 2m PT100 Class Class A Probe Dimension 4 30mm Measure Range 50 200 C Suitable Environment General environment LTC2 LT Low Temperature Version LTC2 with 1 x L...

Страница 7: ...nge 50 200 C Suitable Environment Attached to the measure point LTC2 HT High Temperature Version LTC2 with 1 x high temperature PT100 probe Installation Insert Cable Length 3m PT100 Class Class A Prob...

Страница 8: ...s to input the OTAA or ABP keys in the LoRaWAN network server so to register LTC2 will join the LoRaWAN network and start to transmit data The default period for each uplink is 20 minutes On each upli...

Страница 9: ...w dragino com LTC2 LoRaWAN Temperature Transmitter 9 32 Below is TTN screen shot Create Application first Manually Add a LoRaWAN End Device device Choose OTAA and MAC v1 0 3 Input the OTAA keys for LT...

Страница 10: ...ragino com LTC2 LoRaWAN Temperature Transmitter 10 32 Each LTC2 is shipped with a sticker with the default device EUI as below Input these keys to device portal Choose the Frequency band for this end...

Страница 11: ...Transmitter 11 32 Input APP Key in this page as well Add payload formatter So TTNv3 knows how to parse the LTC2 upload value The payload for TTN can be found at below link https www dragino com downlo...

Страница 12: ...hen ship from factory Put a Jumper on JP2 to power on the device After power on LTC2 will auto join to TTN network via the LoRaWAN coverage by DLOS8 After join success LTC2 will start to update messag...

Страница 13: ...r time SYNC request is send device will set this bit to 0 until got the time stamp from application server Unix Time Request 1 Request server downlink Unix time 0 N A In this mode LTC2 will set this b...

Страница 14: ...x0203 10 51 5 Channel2 temp 0xFE05 10 50 7 System timestamp 0x6073E697 1618208407 UTC Uplink payload example 3 0CE9032EDE1F406073E967 Bat voltage 0x0CE9 3309mV Ext 0x03 Channel1 res 0x2EDE 100 119 98...

Страница 15: ...eq and server will reply with DeviceTimeAns to send the current time to LTC2 If LTC2 fails to get the time from server LTC2 will use the internal time and wait for next time request AT SYNCTDC to set...

Страница 16: ...Timestamp start Timestamp end Uplink Interval Timestamp start and Timestamp end use Unix TimeStamp format as mentioned above Devices will reply with all data log during this time period use the uplin...

Страница 17: ...ata If devise doesn t have any data in the polling time Device will uplink 11 bytes of 0 Example If LTC2 has below data inside Flash Flash Addr Unix Time Ext BAT voltage Value 8021630 systime 2021 5 1...

Страница 18: ...t 11 bytes is for the first entry 0E64410B49800160A072B8 Bat voltage 0x0E64 3684mV poll message flag Ext 0x41 means reply data Ext 1 Channel1 temp 0x0B49 100 28 89 Channel2 temp 0x8001 100 327 67 Syst...

Страница 19: ...on the wiki http wiki dragino com index php title End_Device_Downlink_Command Commands special design for LTC2 These commands only valid for LTC2 as below 3 1 Set Transmit Interval Time Feature Chang...

Страница 20: ...T ENPTCHNUM 2 Enable channel 1 and 2 Downlink Command 0xA1 Total bytes 2 bytes Example 0xA101 same as AT ENPTCHNUM 1 0xA102 same as AT ENPTCHNUM 2 3 3 Set External Sensor Mode Feature Change External...

Страница 21: ...mand Command Example Function AT TIMESTAMP 1611104352 OK Set System time to 2021 01 20 00 59 12 Downlink Command 0x306007806000 Set timestamp to 0x 6007806000 Same as AT TIMESTAMP 1611104352 3 6 Set T...

Страница 22: ...e sync time is 10 days Downlink Command 0x29 0A Same as AT SYNCTDC 0x0A 3 8 Retrieve data Feature Retrieval data for specify time slot AT Command No AT Command only valid for downlink command Downlink...

Страница 23: ...320FF380320 AT ARTEMP 200 800 200 800 A7000A0064000A0065 AT ARTEMP 10 100 10 101 Channel 1 operating temp 10 100 Channel 2 operating temp 10 101 Downlink Command See Poll Sensor Value 3 12 Set Calibra...

Страница 24: ...0 37 44 1 3685 Temp1 28 78 Temp2 327 67 8021620 systime 2021 5 16 00 57 44 1 3684 Temp1 28 83 Temp2 327 67 8021630 systime 2021 5 16 01 17 44 1 3684 Temp1 28 89 Temp2 327 67 8021640 systime 2021 5 16...

Страница 25: ...when read sensor data 1 systime 2021 5 17 03 12 37 1 3681 Temp1 26 01 Temp2 327 67 2 systime 2021 5 17 03 17 37 1 3682 Temp1 26 02 Temp2 327 67 3 systime 2021 5 17 03 22 37 1 3687 Temp1 25 94 Temp2 3...

Страница 26: ...ntage to show the battery level Below is the battery performance Minimum Working Voltage for the LTC2 LTC2 3 0v 3 6v 4 2 Replace Battery Any battery with 3 6v can be a replacement We recommend to use...

Страница 27: ...Life expectation in difference case will be shown on the right 5 Firmware Change Log and Upload Firmware User can use ST Link v2 to upgrade firmware into LTC2 for bug fix or new features The hardware...

Страница 28: ...GND USB to TTL RXD LTC2 TXD USB to TTL TXD LTC2 RXD In PC User needs to set serial tool such as putty SecureCRT baud rate to 9600 to access to access serial console for LTC2 The AT commands are disabl...

Страница 29: ...user do a calibration to eliminate the effect from the cables so to get the best accuracy Below is the step for calibrate on a three wire PT100 probes There is no step for 2 wire probe calibration at...

Страница 30: ...know that each wire of PT100 has 0 594 0 002 2 0 296R Where 0 002 is the value we got from step 1 Step 3 Run Calibrate Command Run this command to both channels to use 0 296R calibrate resistance AT...

Страница 31: ...oRa IC Working Frequency Best Tune Frequency Recommend Bands 433 SX1278 Band2 LF 410 525 Mhz 433Mhz CN470 EU433 868 SX1276 Band1 HF 862 1020 Mhz 868Mhz EU868 IN865 RU864 915 SX1276 Band1 HF 862 1020 M...

Страница 32: ...ransmitter x 1 Dimension and weight Device Size Device Weight Package Size Packege Weight 10 Support Support is provided Monday to Friday from 09 00 to 18 00 GMT 8 Due to different timezones we cannot...

Результаты поиска

Содержание LTC2

Отзывы:

Похожие инструкции для LTC2

Бренды по названию

Популярные бренды

Dragino LTC2, Руководство пользователя

Результаты поиска

Содержание LTC2

Отзывы:

Похожие инструкции для LTC2

Бренды по названию

Популярные бренды