Circuit Connection - Vortex MTGB Series User Manual

MODBUS continuous command minimum interval l00mS;

5.3, Circuit connection

(1) Main power supply and output signal terminal (middle 4 large hanging frame
type terminal)
J IoutJ GNDJ FoutJ V+ J
"Iout" : 4~20mA Discharge current output from the "Iout" to the computer or
display meter 10-250 sampling resistor, after sampling resistance and other negative
c\ass load f\ow back to the power - "-".
"GND": 12~24V "-"
"Fout" : For the pulse signal output terminal output and flow related pulse signal,
the pulse output of the 2К7 on the pull resistance of the open collector output. High
level for the power supply voltage -lV, а low level of \ess than 0.7V
VL<0.7V
o
"v+": 12~24V "+"
(2) Left communication connection (2 bit \ow terminal)
І І І
В А +
-
"В-": RS485 ''В-"
"А+": RS485 "А+"
(З) Right temperature pressure wiring (6 bit low terminal)
І І І
І
TRH TRL JРІН JPVH PVL PIL І
TRH, TRL--Ptl00/Ptl000
( 4) Lower battery wiring (2 bit low terminal)
І
-ЗVб J зvб+І
"-ЗVб": 3.6V "-"
о
"зvб+": 3.6V "+"
о
Near the switch only controls whether the 3.6V lithium battery power supply
circuit to. "On" switch on the circuit, "off" cutting off the pathway between the battery
and the circuit.
In the "ON" allows the battery with the V+ external power supply automatic
conversion.
When the battery power supply automatically cut off the current and the pulse
output signal, there is an external power output automatically.
5.4 Flow meter working interface
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one is the auxiliary in terface:
represent different running states.
VH=Vi-1;
o
calculate the f\ow
does not calculate the flow
this time does not calculate the f\ow
this time does not calculate the flow
does not calculate the flow
calculate the flow
time does not calculate the flow
name on behalf of the different output status
frequency output
output detailed algorithm see the following chapters
outpu t of а certain frequency of the signal.
Flow meter working interface includes two interfaces, one is the main interface,
one is the auxiliary interface:
ln the auxiliary interface, the different names of the signal frequency lines
8 Fin-Normal signal frequency
8 FinCV-Signal amplitude is weak, the output is removed, at this time do not
8 FinCS-Signal belongs to the S0Hz noise, the output is removed, at this time
8 FinFL-Signal is lower than the frequency band, the output is removed, at
8 FinFH-Signal is higher than the frequency band, the output is removed, at
8 FinSL-Signal wave number is too low, the output is removed, at this time
8 FinSM-Signal wave over clutter, the output is removed, at this time do not
8 FinCS-Signal features belong to the noise, the output is removed, at this
8 In the auxiliary interface, the output frequency line is different from the
8 F _bas-basic signal output, that is, in accordance with the measured signal
8 F _adj-correction output, according to the multi point К value correction
8 F_out-frequency output, according to the measured signal, calculate the
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