ÀÌ Á¦Ç°Àº »ê¾÷¿ë 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 (³«·Ú º¸È£ ¼³°è Æ÷ÇÔ) ¸¦ »ç¿ëÇÏ¿© ÇÁ·ÎÅäÄÝ °èÃþÀº 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·ÂµË´Ï´Ù).
¸Å°³ º¯¼ö:
Á¦Ç° À̸§: ¿Âµµ ¹× ½Àµµ ¼Û½Å±â
DC Àü¿ø °ø±Þ ÀåÄ¡: DC 5V-30V
Ãâ·Â ½ÅÈ£: RS485 ½ÅÈ£
¿Âµµ Á¤È®µµ: ± 0.5 ¡É (25 ¡É)
½Àµµ Á¤È®µµ: ± 3% RH
¿Âµµ ¹üÀ§: 0% RH-80 % RJ
¿Âµµ ÇØ»óµµ: 0.1 ¡É
½Àµµ ÇØ»óµµ: 0.1% RH
Àåºñ Àü·Â ¼Òºñ: ¡Â 0.2W
Åë½Å ÁÖ¼Ò: 1-247 ¼³Á¤ÇÒ ¼ö ÀÖ½À´Ï´Ù, ±âº» 1
Åë½Å ÇÁ·ÎÅäÄÝ: Modbus-RTU ÇÁ·ÎÅäÄÝ ¹× »ç¿ëÀÚ Á¤ÀÇ °øÅë ÇÁ·ÎÅäÄÝ
Àü¼Û ¼Óµµ: ±¸¼º °¡´É, ±âº» 9600, 8 ºñÆ® µ¥ÀÌÅÍ, 1 ºñÆ® ÁßÁö, Æи®Æ¼ ¾øÀ½
¹è¼±:
Modbus ÇÁ·ÎÅäÄÝ:
0x03: Àб⠵î·Ï À¯Áö
0x04: ÀÔ·Â ·¹Áö½ºÅÍ Àбâ
0x06: ´ÜÀÏ À¯Áö ·¹Áö½ºÅÍ ÀÛ¼º
0x10: ´õ ¸¹Àº ·¹Áö½ºÅÍ ¾²±â
![](https://ae01.alicdn.com/kf/S9b5bc46cf53845ada3392b83c86c297do.jpg?width=632&height=381&hash=1013)
Modbus ÇÁ·¹ÀÓ Çü½Ä:
¸¶½ºÅÍ Àü¼Û Çü½Ä:
![](https://ae01.alicdn.com/kf/Sf3d8107ef03e40829285f5d165ad1276F.jpg?width=639&height=88&hash=727)
³ë¿¹ÀÇ ÀÀ´ä Çü½Ä:
![](https://ae01.alicdn.com/kf/Sf46fb39b4cba422ea46e093694f10063z.jpg?width=584&height=115&hash=699)
¸ð´õ½º¸í·É
¸¶½ºÅÍ Àб⠿µµ ¸í·É ÇÁ·¹ÀÓ (0x04):
![](https://ae01.alicdn.com/kf/Sbcc8fab349194a10bafa903496da5895e.jpg?width=639&height=88&hash=727)
½½·¹À̺êÀÇ ÀÀ´ä µ¥ÀÌÅÍ:
![](https://ae01.alicdn.com/kf/Sd208b586425a4a2398c687106cf7b45aE.jpg?width=561&height=81&hash=642)
¿Âµµ °ª = 0x131, 10 Áø¼ö 305 º¯È¯, ½ÇÁ¦ ¿Âµµ °ª = 305 / 10 = 30.5 °
Âü°í: ¿Âµµ´Â 16 Áø¼ö, ¿Âµµ °ª = 0xFF33, 10 Áø¼ö-205, ½ÇÁ¦ ¿Âµµ = -20.5 ° ·Î º¯È¯µË´Ï´Ù.
¸¶½ºÅÍ Àб⠽Àµµ ¸í·É ÇÁ·¹ÀÓ (0x04)
![](https://ae01.alicdn.com/kf/S5638cdafce8f475392d80da719824ae0n.jpg?width=639&height=88&hash=727)
½½·¹À̺êÀÇ ÀÀ´ä µ¥ÀÌÅÍ:
![](https://ae01.alicdn.com/kf/Scd38df2bcbb7415dbcc42c21d1ca198fR.jpg?width=615&height=81&hash=696)
½Àµµ °ª = 0x222, 10 Áø¼ö 546 º¯È¯, ½ÇÁ¦ ½Àµµ °ª = 546/10 = 54.6%;
¿¬¼Ó Àб⠿µµ ¹× ½Àµµ ¸í·É ÇÁ·¹ÀÓ (0x04):
![](https://ae01.alicdn.com/kf/Scc991b3b616141cfbfe0cc0ba51376dc9.jpg?width=639&height=88&hash=727)
½½·¹À̺êÀÇ ÀÀ´ä µ¥ÀÌÅÍ:
![](https://ae01.alicdn.com/kf/S18dad88576a74265835172e29239f39b0.jpg?width=571&height=59&hash=630)
Àб⠵î·Ï À¯Áö (0x03):
½½·¹À̺êÀÇ Readdevice ÁÖ¼Ò:
![](https://ae01.alicdn.com/kf/S2062fd9f3c1e4486a136b72c3bd4690dX.jpg?width=639&height=88&hash=727)
½½·¹À̺êÀÇ ÀÀ´ä µ¥ÀÌÅÍ:
![](https://ae01.alicdn.com/kf/S154e7cf3d08947a7a6ea0ea796dd1587p.jpg?width=615&height=81&hash=696)
·¹Áö½ºÅÍÀÇ ³»¿ëÀ» ¼öÁ¤ÇÕ´Ï´Ù (0x06).
½½·¹À̺ê ÁÖ¼Ò ·¹Áö½ºÅ͸¦ ¼öÁ¤ÇÕ´Ï´Ù.
![](https://ae01.alicdn.com/kf/S326640701ad54a5fbe54b8456af9bef8u.jpg?width=639&height=88&hash=727)
½½·¹À̺ê ÁÖ¼Ò ¼öÁ¤: 0x08 = 8
½½·¹À̺êÀÇ ÀÀ´ä µ¥ÀÌÅÍ (±×¸®°í °°Àº º¸³»±â):
![](https://ae01.alicdn.com/kf/S326640701ad54a5fbe54b8456af9bef8u.jpg?width=639&height=88&hash=727)
°è¼Ó º¯°æ ·¹Áö½ºÅÍ À¯Áö (0x10):
![](https://ae01.alicdn.com/kf/Sd004be522e0c4d958adb78b8201f92ed3.jpg?width=619&height=90&hash=709)
³ë¿¹ ÁÖ¼Ò: 0x20 = 32
Àü¼Û ¼Óµµ: 0x2580 = 9600
½½·¹À̺êÀÇ ÀÀ´ä µ¥ÀÌÅÍ:
![](https://ae01.alicdn.com/kf/S1810c97ec632433c8843b66fcbe0b30bw.jpg?width=602&height=81&hash=683)
ÀÏ¹Ý ÇÁ·ÎÅäÄÝ
±âº» Àü¼Û ¼Óµµ 9600 (»ç¿ëÀÚ°¡ ¼³Á¤ÇÒ ¼ö ÀÖÀ½), 8 ºñÆ® µ¥ÀÌÅÍ, ¿ø ½ºÅé, °Ë»ç ¾øÀ½
RS485
![](https://ae01.alicdn.com/kf/Sdebf610c2ab4446b9687935808eec61by.jpg?width=414&height=296&hash=710)
PARAM CMD:
TC:0.0,HC:0.0,BR:9600,HZ:1 -> ¿Âµµ ±³Á¤ 0.0, Humi ±³Á¤ 0.0, Àü¼Û ¼Óµµ 9600, º¸°í ¼Óµµ 1Hz
SLAVE_ADD:1 ->MODBU ½½·¹À̺ê ÁÖ¼Ò 1
![](https://ae01.alicdn.com/kf/S7d114f6005d04615be7130f982ca9d3ar.jpg?width=845&height=739&hash=1584)
![](https://ae01.alicdn.com/kf/S149cb5ed71f74c95aba0b37a9148aac57.jpg?width=800&height=800&hash=1600)
![](https://ae01.alicdn.com/kf/Saa1eb52a45c4429cb794c84fd0955ead1.jpg?width=800&height=800&hash=1600)