Nortec Industries None - Manual (Page 10)

Software requirements for Modbus RTU
Modbus addresses:
4XXXX – R/W
3XXXX - R
Command Description MODBUS
address Details
Output Control OFF
Disables the
humidifier and
places the
humidifier in
standby mode
ON
Enables the
humidifier
(humidifier will
operate based
on the SET
OUTPUT
command
input)
After a microprocessor reset, the
default setting for Output Control
shall be OFF.
40262
255: inhibit actions of
humidifier
0: allow normal operation
Set Output Sets the desired steam output from
0-100%
This value shall be zero after a
microprocessor reset
40264
Remotely set humidity
reading over network.
Value of 0 to 100 (per
cent). If no network signal
for N minutes, reverts to 0.
Force Drain When written to (FF), will interrupt
the humidification process and
activate the humidifier drain valve.
After 20 minutes the controller will
reset this value (00).
After a microprocessor reset, the
default setting shall be (00)
40276
255 will start the process,
0 will be accepted, to clear
if the request has not been
cleared itself
Set MODBUS
address * Change the humidifier controller’s
MODBUS address.
Range is 1-247.
This setting shall be non-volatile
with a default setting of 1.
40550
The value changes will
only take effect following a
hardware reset of the
control board.
Set MODBUS
Baud rate * Changes the humidifier’s baud rate.
Range is 4800, 9600, and 19200
B/sec.
This setting shall be non-volatile
with a default value of 9600 B/sec.
40552
The value changes will
only take effect following a
hardware reset of the
control board
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