Condair Modbus RTU - Page 45

Modbus Installation | 42
Variable
Name
Description
Addr
Type
Format
Range
Unit
R/W
Details
HumEnable
Configures
how
humidifier
responds to
modbus
controls
40003
Holding
Register
Integer
0,255
-
Write
0 = Disable operation of
humidifier (Default Value)
255 = Allow operation of
humidifier within limits
specified by CapLimit
Notes:
- If a valid Modbus message is
not received within the timeout
windows, this parameter reverts
to 0.
- This value cannot be set when
the FORCE DRAIN is activated
as. FORCE DRAIN temporarily
sets this to value 0.
- Jumper J26 must be installed
to write any parameter over the
Modbus. J26 sets it into the
control mode.
- Opening of the hardwired
security loop (terminals 1 and 2)
will override operation even if
255 is written.
CapLimit
Imposes a
maximum
output limit
as
percentage
of unit
capacity.
40004
Holding
Register
Integer
25 -
100
%
Write
Values outside of 25 - 100%
return an error.
Default on startup = 25.
ForceDrain
Manually
initiates a
drain period.
40005
Holding
Register
Integer
0, 255
-
Write
0 = Normal operation
(Default)
255 = Initiate a 20 minute
timer during which the drain
is active.
Notes:
- During a force drain,
humidification ceases.
- Writing 0 during 20 minute
period will cancel the drain.
- After 20 minutes this value will
revert to 0 and the humidifier
will resume normal operation.
ModAddress
Writes a new
Modbus
address for
the
humidifier.
40201
Holding
Register
Integer
1-255
-
Write
Default = 1. Values of 1 -
255 are acceptable.
Changes to this variable do
not take effect until the
humidifier has been power
cycled.
Baud
Sets the
Modbus
baud rate
40202
Holding
Register
Integer
0,1,2
-
Write
Changes to this variable do
not take effect until the
humidifier has been power
cycled.
0 = 4800 bps
1 = 9600 bps (Default)
2 = 19200 bps
Parity
Set Modbus
Parity
40203
Holding
Register
Integer
0,1,2
-
Write
Changes to this variable do
not take effect until the
humidifier has been power
cycled.
0 = No parity
1 = Even parity (Default)
2 = Odd parity