Nortec Modbus User Manual
Page 30
The following points may be mapped for control:
Variable
Name
Description
Addr
Type
Format Range Unit R/W
Additional Details
RHDem1
Write RH or
Demand signal
value to control
channel 1
40264 Holding
Register Analog
0-100
%
Write Requires network controls
(NetSensor = 1)
RhDem2
Write RH or
Demand signal
value to control
channel 2
40265 Holding
Register Analog
0-100
%
Write Requires network controls
(NetSensor = 1)
Set1
Writes the desired
space setpoint for
control channel 1
40024 Holding
Register Analog
30-95
%
Write Use only when sending RH
value to RHDem1
Set2
Writes the desired
space setpoint for
control channel 2
40025 Holding
Register Analog
30-95
%
Write Use only when sending RH
value to RHDem2
Disable
Remotely disables
the humidifier
40262 Holding
Register Analog 0, 255
-
Write 0 = Run
255 = Disable
InputType
Selects the control
type that the
humidifier
operates on
40007 Holding
Register Analog 0,1,2,3
-
Write
0 = Demand Signal
1 = On/Off Signal
2 = RH Sensor Value (Use
Proportional Control)
3 = RH Sensor Value (Use
Proportional-Integral
Control)
NetSensor
Switches between
hard wired or
network control
signal
40226 Holding
Register
Binary
0,1
-
Write
0 = Hard wired control
signal
1 = Use Modbus to write
control signal value
RHDem1
Read RH or
Demand signal
value from control
Channel 1
30348
Input
Register Analog
0-100
%
Read Displays signal value as a
percentage
RHDem2
Read RH or
Demand signal
value from control
Channel 2
30349
Input
Register Analog
0-100
%
Read Displays signal value as a
percentage
Set1
Read space
setpoint for control
channel 1
40024
Input
Register Analog
30-95
%
Read Only available for InputType
2 or 3
Set2
Read space
setpoint for control
channel 2
40025
Input
Register Analog
30-95
%
Read Only available for InputType
2 or 3
Disable
Confirms remote
disable status
30989
Input
Register Analog 0, 255
-
Read 0 = Run
255 = Disable
InputType
Confirms the
control type that
the humidifier
operates on
40007
Input
Register Analog 0,1,2,3
-
Read
0 = Demand Signal
1 = On/Off Signal
2 = RH Sensor Value (Use
Proportional Control)
3 = RH Sensor Value (Use
Proportional-Integral
Control)
Modbus Installation | 27