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MIW-FCVC8-R-EN-000 - 28 / 08 / 2019 10 - 12
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INPUT REGISTERS
Data type Description Data Values
16—20 Reserved, return 0
21 CO2eq level unsigned int Actual CO2eq level 400—
60.000 1.000 = 1.000 ppm
22 CO2eq output value unsigned int Output value according to CO2eq 0—1.000 0 = 0%
1.000 = 100,0 %
23 CO2eq alert ag unsigned int
Flag indicates that measured CO2eq level is
outside set alert values. Set to '1' when the
measured value is outside the CO2eq values
dened by holding registers 25 and 26
0—1 0 = CO2eq measurement OK
1 = CO2eq measurement too low/high
24 CO2eq range limit ag unsigned int
Flag indicates that measured CO2eq is outside
set range limit values. Set to '1' when the
measured CO2eq is outside limit range values set
dened by holding registers 23 and 24
0—1 0 = CO2eq range OK
1 = CO2eq range too low/high
25 CO2eq Sensor state unsigned int Flag that shows if the communication with the
CO2eq sensor is lost 0—1 0 = OK
1 = Fault
26 TVOC level unsigned int TVOC level 0—60.000 1000 = 1000 ppb
27 TVOC output value unsigned int Output value according to TVOC 0—1.000 0 = 0 %
1000 = 100 %
28 TVOC alert ag unsigned int
Flag indicates that measured TVOC level is
outside set alert values. Set to ‘1’ when the
measured value is outside the TVOC values
dened by holding registers 33 and 34
0—1 0 = TVOC measurement OK
1 = TVOC measurement too low/high
29 TVOC range limit ag unsigned int
Flag indicates that measured TVOC is outside
set range limit values. Set to ‘1’ when the
measured NO2is outside limit range values set
dened by holding registers 31 and 32
0—1 0 = TVOC measurement OK
1 = TVOCmeasurement too low/high
30 TVOC sensor state unsigned int Flag that shows if the communication with the
TVOC sensor is lost 0—1 0 = OK
1 = Fault
31—38 Reserved, return 0
39 Actual output value unsigned int The actual output value 0—1.000 0 = 0%
1.000 = 100,0 %
40 Output control mode unsigned int The source of the output value 0—4
0 = Overwrite
1 = Temperature
2 = rH
3 = TVOC
4 = all OFF
41 Ambient light intensity unsigned int Measured ambient light intensity 0—32.000 1.000 = 1.000 lux
42 Active / Standby unsigned int
Active or Standby indication according the
Active / Standby light level dened by holding
registers 35 and 36. If the measured light level
is between the two levels the indication is 0 (Low
light intensity)
0—2
0 = Low light intensity
1 = Active
2 = Standby
43 Ambient light sensor
state unsigned int Flag that shows if the communication with the
ambient light sensor is lost 0—1 0 = OK
1 = Fault
44—50 Reserved, return 0
HOLDING REGISTERS
Data type Description Data Values
1Device slave address unsigned int Modbus device address 1—247
default: 1
2Modbus baud rate unsigned int Modbus communication baud rate 0—6
default: 2
0 = 4.800
1 = 9.600
2 = 19.200
3 = 38.400
4 = 57.600
5 = 115.200
6 = 230.400
3Modbus parity unsigned int Parity check mode 0— 2
default: 1
0 = 8N1
1 = 8E1
2 = 8O1
4Device type unsigned int Device type. Read only 1661 = FCVC8-R
5HW version unsigned int Hardware version of the device. Read only XXXX 0x0100 = HW version 1.0
6FW version unsigned int Firmware version of the device. Read only XXXX 0x0100 = FW version 1.0
7 Reserved, returns 0
8Modbus safety timeout unsigned int Timeout setting for no Modbus communication.
After time runs out, output(s) is set to 0.
0—60
default: 0
0 = no timeout
60 = 60 minutes
9Modbus network resistor
termination (NBT) unsigned int Set device as end device of the line / or not by
connecting NBT
0—1
default: 0
0 = NBT disconnected
1 = NBT connected
10 Modbus registers reset unsigned int
Resets Modbus Holding registers to default values.
When nished this register is automatically reset
to '0'
0—1
default: 0
0 = Idle
1 = Reset Modbus Registers
11 Minimum temperature range unsigned int
Minimum value of temperature range, cannot
be set higher than maximum temperature range
minus 5°C
0—Max-50
default: 0 100 = 10,0°C
12 Maximum temperature range unsigned int
Maximum value of temperature range, cannot be
set less than minimum temperature range plus
5°C
Min+50—500
default: 500 500 = 50,0°C
13 Minimum temperature alert unsigned int Minimum temperature alarm value
Min. temperature range —
Max. temperature alarm
default: 0
500 = 50,0°C
FCVC8-R INTELLIGENT MULTIFUNCTIONAL
FLUSH MOUNTED SENSOR
