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MIW-RSTHM-2-EN-000 - 15 / 01 / 2019
10 - 10
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HOLDING REGISTERS
16
Minimum relative
humidity range
unsigned int.
Minimum value of the rH range; cannot be
set higher than max. rH range minus 5
%
50 — (Max. range — 50)
50
200 =
20,0 % rH
17
Maximum relative
humidity range
unsigned int.
Maximum value of rH range; cannot be set
lower than min. rH range plus 5%
(Min. range + 50) – 850
850
850=
85,0 % rH
18—19
Reserved, return “0”.
20
Minimum temperature
alert
unsigned int. Minimum temperature alarm value
Min. temperature range — Max.
temperature alarm
0
100 =
10,0
º
C
21
Maximum
temperature alert
unsigned int. Maximum temperature alarm value
Min. temperature alarm — Max.
temperature range
500
500 =
50,0
º
C
22
Minimum relative
humidity alert
unsigned int. Minimum relative humidity alarm value
Min. relative humidity range —
Max. relative humidity alarm
50
200 =
20,0 % rH
23
Maximum relative
humidity alert
unsigned int. Maximum relative humidity alarm value.
Min. relative humidity alarm —
Max. relative humidity range
850
850 =
85,0 % rH
24—25
Reserved, return “0”.
26
LED indication
unsigned int. LED indication related to one of the
parameters
1—2
1
1 =
2 =
Temperature
rH
27—29
Reserved, return “0”.
30
Modbus network
resistor termination
(NBT)
unsigned int. Sets device as ending the line or not by
connecting NBT
0—1
0
0 =
1 =
NBT disconnected
NBT connected
31—33
Reserved, return “0”.
34
Active light level
unsigned int. The ambient light level above which
‘Active’ is indicated in input register 6
0—32.000
100
100=
100 lx
35
Standby light level
unsigned int. The ambient light level below which
‘Standby’ is indicated in input register 6
0—32.000
10
10 =
10 lx
36
Modbus registers
reset
unsigned int.
Resets Modbus Holding registers to
default values. When finished this register
is automatically reset to ‘0’
0—1
0
0 =
1 =
Idle
Reset Modbus registers
37—40
Reserved, return “0”
If you want to find out more about Modbus over serial line, please visit:
http://www.modbus.org/docs/Modbus_over_serial_line_V1_02.pdf
TRANSPORT AND STORAGE
Avoid shocks and extreme conditions; stock in original packing.
WARRANTY AND RESTRICTIONS
Two years from the delivery date against defects in manufacturing. Any modifications
or alterations to the product after the date of publication relieve the manufacturer
of any responsibilities. The manufacturer bears no responsibility for any misprints or
mistakes in this data.
MAINTENANCE
In normal conditions this product is maintenance-free. If soiled, clean with a dry or
damp cloth. In case of heavy pollution, clean with a non-aggressive product. In these
circumstances the unit should be disconnected from the supply. Pay attention that
no fluids enter the unit. Only reconnect it to the supply when it is completely dry.
RSTHM-2
COMBINED T AND RH
ROOM TRANSMITTER
