a. Cov yam ntxwv ua haujlwm: Siv kev sib txuas lus tiag tiag ntawm ob lub tsev thiab ib tus qhev, txhawb ntau hom kev sib txuas lus serial; Txhawb nqa cov txheej txheem xa xov pob tshab dawb.
b. Cov yam ntxwv ntawm qhov chaw nres nkoj Serial: Txhawb nqa cov nqi baud ntawm 1200, 2400, 4800, 9600, 19200, 38400, thiab 57600bps; Txhawb nqa kev kuaj xyuas parity; 1 lossis 2 qhov nres, thiab lwm yam.
c. Lub sijhawm tos rau cov lus teb ntawm tus qhev yog xaiv tau.
d. Tus parameter ncua sijhawm rau kev xa cov lus txib ntawm tus tswv tsev yog xaiv tau.
e. Hloov kho cov chaw nres nkoj serial los ntawm kev siv software pab cuam debugging port serial.
f. Kho vajtse chaw nres nkoj Master/slave: RS485 lossis RS232 (xaiv ib qho)
g. Daim Ntawv Thov: Kev lag luam fieldbus siv ob lub tswv tsev los nyeem 485 cov ntaub ntawv network qhev tib lub sijhawm, tsim nyog rau cov xwm txheej sib txuas lus tiag tiag.
2. Ob lub ntsiab thiab ib tug qhev 485 server gateway isolator (ATM)
a. Cov yam ntxwv ua haujlwm: Siv ib qho kev ua haujlwm teb tau 485 server ntawm ob lub hosts thiab ib tug qhev, txhawb nqa MODBUS RTU protocol.
b. Cov yam ntxwv ntawm qhov chaw nres nkoj Serial: Txhawb nqa baud tus nqi ntawm 1200, 2400, 4800, 9600, 19200, 38400, thiab 57600bps; Txhawb nqa parity check; 1 lossis 2 stop bits, thiab lwm yam.
c.Lub sijhawm tos parameter rau tus qhev yog xaiv tau.
d.Lub sijhawm xa khoom qeeb ntawm tus tswv tsev yog xaiv tau.
thiab.Chaw nres nkoj Master thiab Slave: RS485.
f.Hloov kho cov kev teeb tsa los ntawm kev pab cuam debugging serial.
g. Daim Ntawv Thov: Lub tsheb npav ua lag luam siv ob lub 485 tus tswv tsev los nyeem 485 cov khoom siv network qhev tib lub sijhawm, tsim nyog rau kev sib txuas lus ntawm MODBUS RTU cov khoom siv. Txhawb nqa ntau yam khoom siv hauv series thiab cascading daim ntawv thov, nws tuaj yeem ua haujlwm ua lub cuab yeej relay rau kev xa mus ntev ntawm 485 kev sib txuas lus.
3.485 rau analog gateway isolator
a. Cov yam ntxwv ua haujlwm: Cov ntaub ntawv yog muab los ntawm 485 qhov chaw nres nkoj, thiab lub rooj vag hloov cov ntaub ntawv mus rau hauv ib qho linear 4-20mA analog tso zis. Txhawb nqa MODBUS RTU protocol.
b. Cov yam ntxwv ntawm qhov chaw nres nkoj Serial: Txhawb nqa baud tus nqi ntawm 1200, 2400, 4800, 9600, 19200, 38400, thiab 57600bps.
c.Qhov tseeb ntawm cov zis tam sim no analog yog 0.1%.
d.Txhawb cov hom ntaub ntawv: 2-byte integer los yog 4-byte floating-point number, nrog rau kev hloov kho qhov loj ntawm cov ntaub ntawv.
thiab.Muaj ib qho software configuration tool tshwj xeeb los hloov kho cov parameters.
f.Cov khoom siv chaw nres nkoj ntawm tus tswv tsev: RS485. Cov khoom siv qhev tso tawm cov teeb liab analog ntawm 4-20mA.
g. Daim Ntawv Thov: Lub cuab yeej rooj vag tau txais 485 cov ntaub ntawv hauv MODBUS RTU protocol hom ntawv, txheeb xyuas cov ntaub ntawv, thiab hloov nws mus rau hauv cov zis analog 4-20mA tam sim no, uas xa mus rau DCS ntaus ntawv.