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MIW-FCVC8-R-EN-000 - 28 / 08 / 2019
9 - 12
Fig. 7 LED indications
3
2
1
NOTE
By default, the LED indication refers to temperature measurements. This can be
changed to relative humidity or TVOC / CO
2
eq values via Modbus Holding Register
79 (see
Table
Holding registers
below
).
Ambient light sensor
The measured light intensity in lux is available in Input Register 41. Additionally,
an active and standby level can be defined in Holding registers 35 and 36. Input
Register 42 indicates if the measured value is below standby level, above active
level or in between both levels:
■
Ambient light level < standby level: Input Register 42 indicates “Standby”.
■
Ambient light level > active level: Input Register 42 indicates “Active”.
■
Standby level < Ambient light level < Active level: Input Register 42 indicates “Low
intensity”.
VERIFICATION OF INSTALLATION INSTRUCTIONS
After switching on the power supply one of the LEDs lights up according to the
status of the measured variable. If this is not the case, check the connections.
MODBUS REGISTER MAPS
INPUT REGISTERS
Data type
Description
Data
Values
1
Temperature reading
signed int
Actual temperature level
-300—700 500 = 50,0°C
2
Temperature output
value
unsigned int
Output value according to temperature
0—1.000 0 = 0 %
1.000 = 100 %
3
Temperature alert flag
unsigned int
Flag indicates that measured Temperature is
outside set alert values. Set to '1' when the
measured value is outside the Temperature alert
values defined by holding registers 13 and 14
0—1 0 = Temperature measurement OK
1 = Temperature measurement too low/high
4
Temperature range
limit flag
unsigned int
Flag indicates that measured temperature is
outside set range limit values. Set to '1' when
the measured temperature is outside limit range
values defined by holding registers 11 and 12
0—1 0 = Temperature range OK
1 = Temperature range too low/high
5
Temperature sensor
state
unsigned int
Flag that shows if the communication with
temperature sensor is lost
0—1 0 = OK
1 = Fault
6—9
Reserved, return 0
10
Relative humidity level
unsigned int
Actual relative humidity level
0—1.000 1.000 = 100,0 % rH
11
Relative humidity
output value
unsigned int
Output value according to relative humidity
0—1.000 0 = 0%
1.000 = 100,0 %
12
Relative humidity alert
flag
unsigned int
Flag indicates that measured Relative humidity
is outside set alert values. Set to '1' when the
measured value is outside the Relative humidity
alert values defined by holding registers 21 and
22
0—1 0 = Relative humidity measurement OK
1 = Relative humidity measurement too low/high
13
Relative humidity range
limit flag
unsigned int
Flag indicates that measured Relative humidity
is outside set range limit values. Set to '1' when
the measured Relative humidity is outside limit
range values defined by holding registers 19 and
20
0—1 0 = Relative humidity range OK
1 = Relative humidity range too low/high
14
Humidity sensor state
unsigned int
Flag that shows if the communication with
humidity sensor is lost
0—1 0 = OK
1 = Fault
15
Dew point level
signed int
Calculated dew point
-700—700 200 = 20,0°C
FCVC8-R
INTELLIGENT MULTIFUNCTIONAL
FLUSH MOUNTED SENSOR
