GHM Delta OHM HVAC40 Series, Руководство по эксплуатации

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HVAC40…
- 11 -
V1.1
Dip switch
number
Measurement
4
OFF R.H.
ON D.P.
3.3 C
ONFIGURATION DIP SWITCHES IN THE MODELS WITH
RS485
DIGITAL OUTPUT
In the HVAC40S17… models, the transmitter Modbus address is equal to the sum of
the value set with the dip switches (value settable from 0 to 31) and the value set with
the serial command MA (value settable from 1 to 216, default = 1). By setting a dip
switch to ON (upwards), the following values are added to the address:
Dip switch number
1 2 3 4
ON 8 4 2 1
OFF 0 0 0 0
Example: if the dip switches 2 and 4 are set to ON, and the dip switches 3,5 and 6 are
set to OFF, the value set with the dip switches is 8+2=10. If the value set with the se-
rial command MA is 1 (default value), the transmitter Modbus address is 10+1=11.
The dip switches can be set even if the transmitter is powered, and the change is ef-
fective immediately.
Note: in the models with RS485 digital output, the selection of the relative humidity
or dew point measurement does not take place via a dip switch but via P0/P1 serial
commands.
3.4 C
ONFIGURATION DIP SWITCHES IN THE MODELS WITH RELAY OUTPUT
In the HVAC40S17… models, the dip switch 2 is used to select the relative humidity
(R.H.) or the dew point (D.P.) measurement.
Dip switch
number
Measurement
2
OFF R.H.
ON D.P.
The dip switch 1 is not used.