CALEX LCT-485 Network Interface bakeng sa ExTemp Infrared Temperature Sensor
LIEKETSENG
LCT-485 ke RS-485 network interface module bakeng sa ExTemp infrared sensor ea mocheso.
Yuniti ena, ha e hokahane ka lehlakoreng le sireletsehileng la Intrinsically Safe isolator kapa mokoallo, e lumella mocheso o lekantsoeng hore o baloe ho sensor ea ExTemp ka protocol e bulehileng ea Modbus RTU. Litekanyetso tsa tlhophiso ea sensor le tsona li ka hlahlojoa le ho fetoloa.
Sehlopha se seng le se seng sa LCT-485 se lumella puisano le sensor e le 'ngoe ea ExTemp. Motho ea ikhethileng kapa mokoallo o tlameha ho lumellana le phetiso ea data ea dijithale e phahamisitsoeng holim'a lets'oao la analogue 4-20 mA. Sena se lumella LCT-485 ho buisana ka dijithale le ExTemp.
LCT-485 ke sesebelisoa sa Makhoba; lisebelisoa tse fihlang ho 224 li ka hokela ho Modbus Master ea motho oa boraro.
TSEBISO EA BOHLOKOA HO SEBELISA:
LCT-485 ha e loketse ho sebelisoa sebakeng se kotsi. E TSHWANETSE ho hokelwa FEELA sebakeng se bolokehileng, mme e sireleditswe ke sehlahiswa se loketseng sa Intrinsically Safe kapa mokoallo.
U se ke ua leka ho lokisa yuniti e nang le phoso. Ikopanye le morekisi ho lokisetsa ho khutlisa.
LIPALO TSA MOHLALA LCT-485
RS-485 network interface module for ExTemp sensor
LIEKETSENG TS'OANELO
- Seporo sa DIN (35 mm)
- Communications Isolated RS-485 Modbus RTU Slave
- Litekanyo 114(d) x 18(w) x 107(h) ka limilimithara
- Connections Screw terminals bakeng sa RS-485, power, le sensor loop (e loketseng li-conductors 0.2 ho isa ho 2.5 mm²)
- Phepelo voltage 24 V DC (6 V DC min / 28 V DC max)
- Mokhoa o phahameng oa hona joale ke 50 mA
- Sekhahla sa Baud ke 1200 bps ho isa ho 57600 bps, se fumaneha ka bohona
- Sebopeho se senyenyane sa Parity: Odd / Even / Ha ho letho
- Stop bits: 1 kapa 2
- Mocheso oa tikoloho -20°C ho isa ho 70°C
- Loop resistor 270 Ω, e hahiloeng
- EMC Conformity BS EN 61326-1:2013, BS EN 61326-2-3:2013
- Max. No. ea Lisebelisoa Ho fihlela ho 224 x LCT-485 Lisebelisoa tsa Makhoba ka Modbus Master
- Araba Ho lieha (ho 9600 baud) Lingoliloeng tsa ExTemp: 1 s max LCT-485 lirejistara: 30 ms (rejisetara e le 'ngoe) 50 ms (sebaka sohle sa aterese)
LOKISETSA LITLHAKISO
Ambient Mocheso
Khokahano ena ea marang-rang e etselitsoe ho sebetsa maemong a mocheso ho tloha ho -20°C ho isa ho 70°C.
Tšitiso ea Motlakase
Ho fokotsa tšitiso ea motlakase kapa 'lerata', sehokelo sa marang-rang se lokela ho beoa hole le lienjineri, lijenereithara le tse ling tse joalo.
Wiring
Sheba libaka tse pakeng tsa Intrinsically Safe isolator kapa mokoallo, Modbus Master, le interface ea marang-rang ea LCT-485. LCT-485 e lumellana le litekanyetso tsa indasteri bakeng sa ho lumellana ha motlakase ka thapo e fihlang ho 30 m e khomaretsoeng ka lehlakoreng la RS-485, le thapo ea 30 m ka lehlakoreng la 4-20 mA.
Phepelo ea motlakase
Etsa bonnete ba hore o sebelisa motlakase oa 24 V DC.
KEKETSO MOCHA
Ho phahamisa
LCT-485 e etselitsoe ho hokelloa ho seporo sa 35 mm DIN ka sekotwana se kenyellelitsoeng.
LITLHAKISO TSA MOTSI
LCT-485 ha e ea netefatsoa hore e sebelisoe libakeng tse kotsi. E tlameha ho hokelloa feela ka lehlakoreng le sireletsehileng la Intrinsically Safe isolator kapa mokoallo.
Lihokelo le Intrinsically Safe Isolator
Likamano le Zener Barrier
- Max. bolelele ba cable 30 m
- Max. bolelele ba cable 30 m (ts'ebeliso ea RS-485 Modbus repeater e lumella thapo e telele ka lehlakoreng la Master)
Screw Terminals
Intrinsically Safe Isolator kapa Barrier
LCT-485 ha ea lokela ho hokahanngoa ka kotloloho ho sensor ea ExTemp. E tlameha ho sebelisoa feela mmoho le Intrinsically Safe isolator kapa zener barrier.
Motho ea itšehlang thajana kapa mokoallo o tlameha ho khona ho fetisa analogue 4-20 mAsignal ka nako e le 'ngoe ka lets'oao le phahameng la dijithale joalo ka Frequency Shift Keying (FSK).
Mefuta e loketseng e kenyelletsa:
- Isolator ea mofuta oa MTL5541
- Mofuta oa thibelo MTL7706+
Tsena li entsoe ke Measurement Technology Ltd (www.mtl-inst.com).
Lihokelo – RS-485 Modbus Network
Lihokelo tsohle tse ka tlase li ka lehlakoreng le sireletsehileng la Intrinsically Safe isolator kapa mokoallo.
Netefatsa hore sebaka se pakeng tsa sesebelisoa ka seng le bese ea marang-rang se khuts'oane ka hohle kamoo ho ka khonehang.
Lintlha
LCT-485 e tsamaellana le litekanyetso tsa indasteri bakeng sa tšebelisano ea motlakase ka thapo e fihlang ho 30 m ea RS-485 e hoketsoeng. Haeba marang-rang a tlameha ho tsamaisoa sebaka se selelele, tšebeliso ea RS-
Ho khothaletsoa ho pheta-pheta 485.
Netefatsa hore likhokahano tsohle li nepahetse pele o sebelisa motlakase.
TS'EBETSO
Hang ha sensor e se e le maemong, ho tlameha ho hokahanngoa le ho hlophisoa ho tlameha ho hoketsoe sesebelisoa se ikhethileng sa Intrinsically Safe.
Ha likhokahano tse nepahetseng tsa motlakase le lithapo li bolokehile, sistimi e se e loketse ts'ebetso e tsoelang pele ka ho tlatsa mehato e bonolo e latelang:
- Bulela phepelo ea motlakase
- Bulela sesupo (haeba se kentsoe)
- Romela molaetsa oa teko ho netefatsa hore likhokahano le LCT-485 li ntle (re khothaletsa ho bala ho tsoa atereseng ea 0xD0, aterese ea Modbus Slave)
- Romela molaetsa oa teko ho netefatsa hore likhokahano ka sensor ea ExTemp li ntle (re khothaletsa ho bala ho tsoa atereseng ea 0x08, Filtered Object Temperature)
- Bala kapa hlokomela mocheso
MODBUS KA PHAPALA SERIAL LINE (RS-485)
| Sehokedi | |
| Sekhahla sa Baud | 1200 bps ho isa ho 57600 bps, e fumaneha ka bo eona |
| Sebopeho (Bits) | 8 data, e sa tloaelehang / esita le / ha e na parity, 1 kapa 2 stop bits |
| Ho lieha ho araba (ho 9600 baud) | Lingoliloeng tsa ExTemp: 1 s max LCT-485 lirejistara: |
| 30 ms (rejisetara e le 'ngoe) | |
| 50 ms (sebaka sohle sa aterese) |
| E tšehelitsoe Mesebetsi | |
| Buka ea ho bala (R) | 0x03, 0x04 |
| Ngola rejisetara e le 'ngoe (W) | 0x06 |
| Ngola rejisetara e ngata (W) | 0x10 |
LENANE LA LINGOLISI TSA MODBUS (LINGOLISO TSA EXTEMP)
| Aterese | R/W | Tlhaloso | Ea kamehla boleng | Min. boleng | Max. boleng |
| 0x00 (0) | – | [BEKIWE] | – | – | – |
| 0x01 (1) | R | Sensor ID (bolelele: mantsoe a 2): Bits 0..19 - Nomoro ea serial
Bits 20..23 - Sebaka sa kutlo sa view (0=2:1, 1=15:1, 2=30:1) Bits 24..27 – Sensor Type (A= ExTemp) Bits 28..31 – Re Reserved |
– | – | – |
| 0x03 (3) | R | Mocheso o sa hloekang oa ntho | – | – | – |
| 0x04 (4) | R | Sensor mocheso | – | – | – |
| 0x05 (5) | R | Boholo ba mocheso | – | – | – |
| 0x06 (6) | R | Mocheso o fokolang oa ho ts'oara | – | – | – |
| 0x07 (7) | R | Karolelano ea mocheso | – | – | – |
| 0x08 (8) | R | Mocheso oa ntho e tlhotliloeng | – | – | – |
| 0x09 (9) | – | [BEKIWE] | – | – | – |
| 0x0A (lintlha tse 10) | R/W | Litlhophiso tsa Emissivity (1 LSB = 0.0001) | 9500 | 2000 | 10000 |
| EA-0-TZ | R/W | Mocheso o bonahalang | 0 | – | – |
| EA-0-YD | R/W | Boemo ba kutlo:
Bits 0..1 - Behiloe Bit 2 - Tšoara ts'ebetso ho (1) / off (0) Bit 3 - Tšoara litlhōrō (1) / liphula (0) Bits 4..6 - Behiloe Bit 7 - Matšeliso a matla a bonts'itsoeng ho (1) / off (0) Bits 8..15 - Behiloe |
3 | – | – |
| EA-0x0D (13) | R/W | Nako e tloaelehileng (1 LSB = 250 ms) | 1 | 0 | 240 |
| 0x0E (14) | R/W | Nako ea ho ts'oara (1 LSB = 250 ms) | 1 | 0 | 4800 |
| EA-0x0F (15) | R/W | Mocheso ho 4mA | 0 | -200 | 9000 |
| 0x10 (16) | R/W | Mocheso ho 20mA | 5000 | 800 | 10000 |
| 0x11 (17)
ho 0xCF (207) |
– | [BEKIWE] | – | – | -0 |
LETHAMO LA LINGOISO TSA MODBUS (LCT-485 REGISTERS)
| Aterese | R/W | Tlhaloso | Ea kamehla boleng | Min. boleng | Max. boleng |
| 0xD0 (208) | R/W | Aterese ea lekhoba la Modbus* | 1 | 1 | 247 |
| 0xD1 (209) | R/W | Sekhahla sa Baud* | 9600 | 400 | 60000 |
| 0xD2 (210) | R/W | Tekano (0 = ha e eo, 1 = e sa tloaelehang, 2 = esita le)* | 0 | 0 | 2 |
| 0xD3 (211) | R/W | Emisa likotoana
(1 = 1 stop bits, 2 = 2 stop bits)* |
0 | 0 | 1 |
| 0xD4 (212) | R/W | Mokhoa oa ho iketsetsa libese (ABC).
(0 = tima, 1 = butle, 2 = ka ho sebelisa sekhahla se haufi se tsebahalang**) |
1 | 0 | 2 |
| 0xD5 (213) | – | [BEKIWE] | – | – | – |
| 0xD6 (214) | R/W | Rejisetara ea mosebetsi
(1=roala bocha, 0x5555=seta fektheri bocha) E hlakotsoe ka bo eona |
0 | 0 | 65535 |
Haeba e fetotsoe, boleng bo bocha bo tla sebetsa feela ka mor'a hore matla a tsamaee ka baesekele, kapa ka mor'a hore "1" e ngoloe ho Function Register 0xD6 Mode "2": ka mor'a ho lemoha sekhahla sa baud, LCT-485 ebe e khetha sekhahla sa "baud" se haufi le "tse tsejoang". ho tsoa ho litekanyetso tse tloaelehileng tse latelang: 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400,57600 (sheba "Mokhoa oa Tlhophiso ea Libese oa Automatic" ka tlase)
Lintlha
- Lithempereichara tsohle li ho karolo ea leshome ea likhato C
- Ts'ebetso eohle ea ho ngola e bolokoa mohopolong o sa fetoheng
- Bakeng sa lintlha tse ling ka kopo sheba ho http://www.modbus.org/specs.php
- Sebelisa aterese ea 255 ho buisana le sensor efe kapa efe e hokahantsoeng ea yuniti ea LCT-485 (etsa bonnete ba hore ho hoketsoe yuniti e le 'ngoe feela ea LCT-485)
- Sebelisa aterese 0 ho hasanya ho likarolo tsohle tse hokahantsoeng tsa LCT-485 (ha ho karabelo e lebelletsoeng)
MOKHOA OA HO SEBELISA LIBOSE (ABC).
LCT-485 e khona ho bona ka bo eona sekhahla se nepahetseng sa baud, ho lekana le ho emisa li-setting tse sebelisoang ke Modbus Master. Mokhoa ona o lumelletsoe ke kamehla. Ho sebelisa mokhoa oa ABC:
- Lokisa Modbus Master hore a romele khafetsa Bala melaetsa ho LCT-485. Netefatsa hore nako ea ho tsoa ha Modbus Master ha e khuts'oane ho feta tieho ea karabo ea yuniti ea LCT-485 (motsotsoana o le mong). Netefatsa hore Modbus Master o tla tsoela pele ho leka ho romella melaetsa ka mor'a nako e ngata.
- LCT-485 e tla mamela melaetsa e tsoang ho Modbus Master. Qalong e tla sebelisa litlhophiso tse khethiloeng bakeng sa sekhahla sa baud, li-stop bits le parity. Haeba ho se le e 'ngoe ea litlhophiso tsena e hlophisitsoeng, litekanyetso tsa kamehla li tla sebelisoa.
- Ka mor'a melaetsa e 'maloa e hlōlehileng, haeba litlhophiso tse khethiloeng li sa sebetse, LCT-485 e tla lekanya le ho beha sekhahla sa baud. E tla leka mekhoa eohle e ka khonehang ea ho emisa bit le litlhophiso tsa parity ho fihlela e fumana litekanyetso tse nepahetseng.
- LCT-485 e tla lemoha ha lipuisano tse ntle le Modbus Master li thehiloe, 'me mokhoa oa ABC o tla phethoa. Maemo a iphumaneng a tla bolokoa ka har'a lirejistara tsa Modbus tsa LCT-485. Mokhoa oa ABC o ke ke oa qala hape ho fihlela motlakase o baesekele.
- Hoa khoneha ho fetola sekhahla sa baud, parity le ho emisa li-setting tsa bit ka ho ngolla li-registering tsa Modbus. LCT-485 e tla sebelisa litlhophiso tse ncha ka mor'a hore motlakase o tsamaee ka baesekele, kapa ka mor'a hore "1" e ngoloe ho Function Register 0xD6.
PUSELETSO MOHAPI
Haeba ho ka etsahala hore litlhophiso tsa parity, li-stop bits le sekhahla sa baud li lahlehe kapa li sa tsejoe, 'me mokhoa oa ABC ke "0" (Off), likhokahano li ka khutlisoa ka tsela e latelang:
Lokisa Modbus Master hore a romele khafetsa Bala melaetsa o sebelisa 9600 baud, no parity, 1 stop bit. Ka mor'a melaetsa e mengata, LCT-485 e tla khutlela ho litlhophiso tsena ka nakoana ho fihlela motlakase o potoloha. Sena se tla lumella litlhophiso tse nepahetseng tsa mantlha hore li baloe ho tsoa ho LCT-485. Litlhophiso tsena tsa ho hlaphoheloa ha li bolokoe, 'me ha li fetole litlhophiso tse teng.
BOHLOKOA
- LCT-485 ha e loketse ho sebelisoa sebakeng se kotsi. E TSHWANETSE ho hokelwa FEELA sebakeng se bolokehileng, mme e sireleditswe ke sehlahiswa se loketseng sa Intrinsically Safe kapa mokoallo.
- Se ke oa sebelisa yuniti ena haufi le libaka tse matla tsa makenete ea motlakase (mohlala, haufi le lijenereithara kapa lihitara tsa induction). Tšitiso ea motlakase e ka baka liphoso tsa ho lekanya.
- Lithapo li tlameha ho hokeloa ho li-terminals tse loketseng feela.
- Se ke oa bula matlo a LCT-485. Sena se tla senya yuniti le ho etsa hore waranti e se ke ea sebetsa.
TLHOKOMELO
Baemeli ba rona ba litšebeletso tsa bareki ba teng bakeng sa thuso ea likopo, ho lekanya, ho lokisa le ho rarolla mathata a itseng. Ikopanye le Lefapha la rōna la Tšebeletso pele u khutlisetsa thepa leha e le efe. Maemong a mangata, mathata a ka rarolloa ka thelefono. Haeba sesebelisoa se sa sebetse kamoo se lokelang, leka ho bapisa letšoao le ka tlase ho bothata. Haeba tafole e sa thuse, ikopanye le rona bakeng sa keletso e eketsehileng.
HO BATLE PHOSO
| Letšoao | Mohlomong Lebaka | Tharollo |
| Ha ho lipuisano | Ha ho matla ho sesebelisoa | Lekola phepelo ea motlakase le lithapo |
| Aterese ea Lekhoba la Modbus e fosahetseng | Sheba aterese ea Modbus Slave holim'a leibole e lehlakoreng la yuniti. Sheba hore na aterese ea Modbus Slave e fetotsoe.
Ho bala Aterese ea Makhoba ka Modbus: Ka yuniti e le 'ngoe feela ea LCT-485 e hokahaneng le Monghali oa Modbus, e baloang ho tsoa ho rejisetara 0xD0 o sebelisa aterese ea Lekhoba 255 (sena se tla hlahisa karabo ho tsoa atereseng efe kapa efe ea Lekhoba) |
|
| Ha ho (kapa nako le nako) lipuisano | Modbus Slave aterese khohlano | Etsa bonnete ba hore karolo e 'ngoe le e' ngoe ea marang-rang e na le aterese e ikhethang ea Modbus Slave |
| Sebopeho sa marang-rang sa RS-485 se fosahetse | Netefatsa hore sesebelisoa se seng le se seng sa RS-485 se hoketsoe ka thapo e khutšoane kamoo ho ka khonehang beseng e kholo ea marang-rang | |
| Ha ho li-resistors tsa ho emisa | Netefatsa hore ho na le mohanyetsi oa ho emisa oa 120 Ω o hokahaneng lipakeng tsa RS-485 + le - mela ho Modbus Master, le e 'ngoe qetellong ea bese sesebelisoa se hole haholo. |
TIISETSO
Calex e tiisa hore sesebelisoa se seng le se seng seo e se etsang ha se na sekoli linthong tse bonahalang le ka tlas'a ts'ebeliso e tloaelehileng le ts'ebeletso nako ea lilemo tse peli ho tloha ka letsatsi la theko. Tiisetso ena e fetela feela ho moreki oa mantlha ho latela Melao le Maemo a Thekiso a Calex.
Litokomane / Lisebelisoa
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CALEX LCT-485 Network Interface bakeng sa ExTemp Infrared Temperature Sensor [pdf] Bukana ea Mosebelisi LCT-485 Network Interface bakeng sa ExTemp Infrared Temperature Sensor, LCT-485, Network Interface bakeng sa ExTemp Infrared Temperature Sensor. |
