cov khoom

4 mus rau 20 mA qhov chaw. Txhua qhov tso zis channel tsav ib qho kev thauj khoom sab nraud thiab tsim tawm 0 txog 20 mA. Transmitter hwj chim los ntawm txhua lub module yog diode LOSSIS ua ke nyob rau hauv lub redundant adapter los xyuas kom meej redundant zog. Lub microprocessor ntawm txhua qhov module ua tiav qhov analog I / O daim ntawv thov kev pab cuam, ntxiv rau cov txheej txheem kev ruaj ntseg uas ua rau muaj kev noj qab haus huv ntawm FBM. Input channel xaiv muaj xws li kev xaiv configurable ntawm kev koom ua ke lub sij hawm nyob rau hauv ib lub hauv paus module. Input channel kev ruaj ntseg yog txhim kho los ntawm redundantly powering lub input tam sim no voj los ntawm ib tug channel fais fab mov nyob rau hauv txhua lub module ntawm khub. Configurable options in the modules for output security include Fail-Safe Action (Tuav/Fallback), Analog Output Fail-Safe Fallback Data (raws li ib lub hauv paus channel), Fieldbus Fail-Safe Enable, thiab Fieldbus Fail-Safe Delay Time. Analog Output Fail-Safe Fallback Data xaiv yuav tsum tau teem rau 0 mA tso zis. Qhov no tshem tawm ib qho ntawm ob khub ntawm cov khoom tso tawm tsis tu ncua los ntawm kev pabcuam rau cov teeb meem tshawb pom xws li module tsis tau txais cov ntaub ntawv sau tau zoo lossis tsis dhau qhov kev ntsuam xyuas kev nyab xeeb ntawm FBM microprocessor sau rau cov ntawv tso tawm. Kev teeb tsa ntawm Analog Output Fail-Safe Fallback Cov Ntaub Ntawv xaiv rau 0 mA cov zis kuj txo qis qhov ua tau ntawm qhov tshwm sim "tsis ua haujlwm siab". HIGH ACCURACY Rau qhov raug siab, lub module suav nrog sigmadelta converters rau txhua qhov channel, uas muab cov lus qhia tshiab analog tawm txhua txhua 25 ms, thiab lub sijhawm sib koom ua ke kom tshem tawm cov txheej txheem suab nrov thiab lub zog kab ntau zaus. Txhua lub sijhawm, FBM hloov pauv txhua qhov kev tawm tswv yim analog rau tus nqi digital, nruab nrab cov nqi no nyob rau lub sijhawm thiab muab tus nqi nruab nrab rau tus maub los. HIGH RELIABILITY Lub redundancy ntawm module khub, ua ke nrog cov kev pab them nqi siab ntawm faults, muab ib tug heev subsystem muaj sij hawm. Lub Redundant Adapter muab cov ntsiab lus xeem uas tuaj yeem siv rau kev sim ua ntu zus thiab ntsuas cov zis hluav taws xob ntawm txhua lub xa hluav taws xob xa hluav taws xob. Xws li kev soj ntsuam raws sij hawm tuaj yeem ua rau kom muaj cov ntaub ntawv muaj nyob ntawm qhov module. STANDARD DESIGN FBM205 muaj rugged extruded aluminium sab nrauv rau kev tiv thaiv lub cev ntawm cov circuits. Enclosures tshwj xeeb uas tsim los rau mounting FBMs muab ntau theem ntawm kev tiv thaiv ib puag ncig, mus txog rau ib puag ncig hnyav, raws li ISA Standard S71.04. VISUAL INDICATORS Lub teeb-emitting diodes (LEDs) muab tso rau hauv pem hauv ntej ntawm lub module muab kev pom zoo qhia txog kev ua haujlwm ntawm Fieldbus Module. YOOJ YIM ROV QAB / ROV QAB Ib qho module tuaj yeem hloov pauv yam tsis muaj kev ntxhov siab hauv teb cov lus tawm lossis cov teeb liab tawm mus rau qhov zoo module. Lub module tuaj yeem raug tshem tawm / hloov pauv yam tsis tau tshem tawm cov khoom siv hluav taws xob tshem tawm, lub zog, lossis kev sib txuas lus cable. FIELDBUS Kev Sib Txuas Lus A Fieldbus Communications Module lossis Tus Txheej Txheem Tswjhwm cuam tshuam rau qhov rov ua dua 2 Mbps module Fieldbus siv los ntawm FBMs. FBM205 lees txais kev sib txuas lus los ntawm ob txoj hauv kev (A lossis B) ntawm 2 Mbps Fieldbus - yog tias ib txoj hauv kev tsis ua haujlwm lossis hloov mus rau theem system, lub module txuas ntxiv kev sib txuas lus ntawm txoj kev nquag.