ÀÌ Á¦Ç°Àº »ê¾÷¿ë µî±Þ Ĩ, °íÁ¤¹Ð ¼öÀÔ SHT20 ¿Âµµ ¹× ½Àµµ ¼¾¼¸¦ äÅÃÇÏ¿© Á¦Ç°ÀÇ ¿ì¼öÇÑ ½Å·Ú¼º, °íÁ¤¹Ð ¹× ȣȯ¼ºÀ» º¸ÀåÇÕ´Ï´Ù. RS485 Çϵå¿þ¾î ÀÎÅÍÆäÀ̽º (¹ø°³ º¸È£ ¼³°è Æ÷ÇÔ) ¸¦ »ç¿ëÇÏ´Â ÇÁ·ÎÅäÄÝ ·¹À̾î´Â Ç¥ÁØ »ê¾÷¿ë Modbus-Rtu ÇÁ·ÎÅäÄÝ°ú ȣȯµË´Ï´Ù. ÀÌ Á¦Ç°Àº MODBUS ÇÁ·ÎÅäÄÝ°ú °øÅë ÇÁ·ÎÅäÄÝÀ» ÅëÇÕÇÕ´Ï´Ù. »ç¿ëÀÚ´Â Åë½Å ÇÁ·ÎÅäÄÝÀ» ¼±ÅÃÇÒ ¼ö ÀÖ½À´Ï´Ù. °øÅë ÇÁ·ÎÅäÄÝ¿¡´Â ÀÚµ¿ ¾÷·Îµå ±â´ÉÀÌ ÀÖ½À´Ï´Ù (Á÷·Ä Æ÷Æ® Á¶Á¤ µµ±¸¸¦ ÅëÇØ RS485 ¸¦ ¿¬°áÇÏ¸é ¿Âµµ¿Í ½Àµµ°¡ ÀÚµ¿À¸·Î Ãâ·Â).
¸ð¼ö:
»óÇ°¸í: ¿Âµµ ¹× ½Àµµ Æ®·£½º¹ÌÅÍ
DC Àü¿ø °ø±Þ ÀåÄ¡: DC 5V-30V
Ãâ·Â ½ÅÈ£: RS485 ½ÅÈ£
¿Âµµ Á¤È®µµ: ¡¾ 0.5 ¡É (25 ¡É)
½Àµµ Á¤È®µµ: ¡¾ 3% RH
¿Âµµ ¹üÀ§: 0% RH-80 % RJ
¿Âµµ ÇØ»óµµ: 0.1 ¡É
½Àµµ ÇØ»óµµ: 0.1% RH
Àåºñ Àü·Â ¼Òºñ: ≤ 0.2W
Åë½Å ÁÖ¼Ò: 1-247 ¼³Á¤ °¡´É, ±âº»°ª 1
Åë½Å ÇÁ·ÎÅäÄÝ: Modbus-RTU ÇÁ·ÎÅäÄÝ ¹× ¸ÂÃãÇü ÀÏ¹Ý ÇÁ·ÎÅäÄÝ
Àü¼Û ¼Óµµ: ±¸¼º °¡´É, ±âº» 9600, 8 ºñÆ® µ¥ÀÌÅÍ, 1 ºñÆ® Á¤Áö, Æи®Æ¼ ¾øÀ½
¹è¼±:
Modbus ÇÁ·ÎÅäÄÝ:
0x03: Àбâ À¯Áö µî·Ï
0x04: Àбâ ÀÔ·Â ·¹Áö½ºÅÍ
0x06: ´ÜÀÏ À¯Áö ·¹Áö½ºÅÍ ¾²±â
0x10: ´õ ¸¹Àº ¾²±â µî·Ï À¯Áö
![](https://ae01.alicdn.com/kf/S714439a263ad4928b6d6e5286c39eeb3U.jpg?width=632&height=381&hash=1013)
Modbus ÇÁ·¹ÀÓ Çü½Ä:
¸¶½ºÅÍ º¸³»±â Çü½Ä:
![](https://ae01.alicdn.com/kf/S2e8b622be8714b39bc9b4399e923edc6r.jpg?width=639&height=88&hash=727)
½½·¹À̺êÀÇ ¹ÝÀÀ Çü½Ä:
![](https://ae01.alicdn.com/kf/Sc0966607d0e845fabab9840f60f028911.jpg?width=584&height=115&hash=699)
MODBUSCOMMAND
¸¶½ºÅÍ Àб⠿µµ ¸í·É ÇÁ·¹ÀÓ (0x04):
![](https://ae01.alicdn.com/kf/S64dd85081821454a8dcf0ba5912a2d18V.jpg?width=639&height=88&hash=727)
½½·¹À̺êÀÇ ¹ÝÀÀ µ¥ÀÌÅÍ:
![](https://ae01.alicdn.com/kf/S6295aa2973794646809ba8e1c3748f23Y.jpg?width=561&height=81&hash=642)
¿Âµµ °ª = 0x131, ¼Ò¼öÁ¡ 305 ·Î º¯È¯, ½ÇÁ¦ ¿Âµµ °ª = 305 / 10 = 30.5 °
Âü°í: ¿Âµµ´Â À°°¢¼ö, ¿Âµµ °ª = 0xFF33, ¼Ò¼öÁ¡-205 ·Î º¯È¯, ½ÇÁ¦ ¿Âµµ = -20.5 ° ·Î Ç¥½ÃµË´Ï´Ù.
¸¶½ºÅÍ Àб⠽Àµµ ¸í·É ÇÁ·¹ÀÓ (0x04)
![](https://ae01.alicdn.com/kf/S05e3e7050a204abd819001a145549a671.jpg?width=639&height=88&hash=727)
½½·¹À̺êÀÇ ¹ÝÀÀ µ¥ÀÌÅÍ:
![](https://ae01.alicdn.com/kf/Sde474f2fedcd404396dbea44bfe122a2c.jpg?width=615&height=81&hash=696)
½Àµµ °ª = 0x222 º¯È¯ ½ÊÁø¼ö 546 ½ÇÁ¦ ½Àµµ °ª = 546/10 = 54.6%;
¿¬¼Ó Àб⠿µµ ¹× ½Àµµ ¸í·É ÇÁ·¹ÀÓ (0x04):
![](https://ae01.alicdn.com/kf/Se49e5329ca8941c48cdd584be15491323.jpg?width=639&height=88&hash=727)
½½·¹À̺êÀÇ ¹ÝÀÀ µ¥ÀÌÅÍ:
![](https://ae01.alicdn.com/kf/Se0dd56995d414a14aeb22176fa9f2770p.jpg?width=571&height=59&hash=630)
Àбâ À¯Áö µî·Ï (0x03):
½½·¹À̺êÀÇ Æǵ¶ ÀåÄ¡ ÁÖ¼Ò:
![](https://ae01.alicdn.com/kf/S9437d465f4394e65879b2ba085d39f16W.jpg?width=639&height=88&hash=727)
½½·¹À̺êÀÇ ¹ÝÀÀ µ¥ÀÌÅÍ:
![](https://ae01.alicdn.com/kf/Sde9efd4325a5403e8ca831147cbe3598x.jpg?width=615&height=81&hash=696)
·¹Áö½ºÅÍÀÇ ³»¿ë ¼öÁ¤ (0x06):
½½·¹À̺ê ÁÖ¼Ò µî·Ï ¼öÁ¤:
![](https://ae01.alicdn.com/kf/Safa0678ad2184734b97481202b96fa24U.jpg?width=639&height=88&hash=727)
½½·¹À̺ê ÁÖ¼Ò ¼öÁ¤: 0x08 = 8
½½·¹À̺êÀÇ ¹ÝÀÀ µ¥ÀÌÅÍ (µ¿ÀÏÇÑ Àü¼Û):
![](https://ae01.alicdn.com/kf/Safa0678ad2184734b97481202b96fa24U.jpg?width=639&height=88&hash=727)
Áö¼ÓÀûÀ¸·Î º¯°æ À¯Áö µî·Ï (0x10):
![](https://ae01.alicdn.com/kf/S8d1ec38c1390447e95ec83c8940a917dE.jpg?width=619&height=90&hash=709)
½½·¹À̺ê ÁÖ¼Ò: 0x20 = 32
Àü¼Û ¼Óµµ: 0x2580 = 9600
½½·¹À̺êÀÇ ¹ÝÀÀ µ¥ÀÌÅÍ:
![](https://ae01.alicdn.com/kf/S97832ed832ba4a54968732d6e727626ao.jpg?width=602&height=81&hash=683)
ÀÏ¹Ý Protocal
±âº» Àü¼Û ¼Óµµ 9600 (»ç¿ëÀÚ ¼³Á¤ °¡´É), 8 ºñÆ® µ¥ÀÌÅÍ, ¿ø ½ºÅé, È®ÀÎ ¾øÀ½
RS485
![](https://ae01.alicdn.com/kf/Sc3fd948d457d4b689160b7683224b174A.jpg?width=414&height=296&hash=710)
PARAM CMD:
TC:0.0,HC:0.0,BR:9600,HZ:1 -> ¿Âµµ ±³Á¤ 0.0, Humi calibration0.0, Àü¼Û ¼Óµµ 9600, º¸°íÀ² 1Hz
SLAVE_ADD:1 ->MODBU ½½·¹À̺ê ÁÖ¼Ò 1
![](https://ae01.alicdn.com/kf/S37beea65559342fc84fd402e07f189e70.jpg?width=845&height=739&hash=1584)