Condair Modbus RTU - Page 32

29 | Modbus Installation
The following points may be mapped for control:
Table 5: GSTC Humidifier Modbus Parameters
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)
NetSensor
Confirms the
system control type
40226
Input
Register
Binary
0,1
-
Read
0 = Hard wired
control signal
1 = Use Modbus to
write control signal
value