STULZ Ultra-Series Humidifier Controller
32
(August,
2013)
Humidifier
1
of XX
Commanded Duty 31%
High Water Sw Full
Low Water Sw OK
Voltage 49.6V
Nebul temp 95.0
°
F
State NORMAL
Modbus Status Online
5.5.1.5 Humidifier Input Status
From this screen a Humidifier may be selected to view the
displayed controller operating input parameters. If the
system consists of multiple Humidifiers, advance the
flashing cursor to the Humidifier number in the top line by
pressing Enter (
←
). The cursor will move the humidifier
number. Select which Humidifier to view by using the Up
(
↑
) and Down (
↓
) arrow keys then press Enter to view that
humidifier’s data.
The "Commanded Duty" field is the proportional control
output signal the Humidifier reports it received from the
controller.
The high water switch indicates “Full” or “Low”. When it is
“Low” the fill solenoid should open to bring the tank level
back to “Full”.
The low water switch indicates “OK” or “Empty”. “OK”
indicates enough water is over the transducers to operate
them.
The Voltage is the voltage at the humidifier after line
losses from the power supply. This should be drop below
46 volts when the humidifier is running at full output.
The Nebul temp is the nebulizer temperature.
The State is either “NORMAL”, or “DRAIN”
The Modbus Status indicates the state of the communication interface:
Display
Meaning
Sub list
Sub list number = 0 for the required Modbus command. Code managed with BIOS >= 5.07.
INV Data
Invalid data for the requested Modbus command. Summarizes one or more data errors from Modbus sub
lists.
Offline
Timeout (no response after query for all repeated attempts)
Comm Err
Invalid response (incomplete with CRC error)
Online
Command successfully completed. All commands requested by sub lists were successfully completed
Ill Func
ILLEGAL FUNCTION. The command code does not correspond to any foreseen action.
Ill Adr
ILLEGAL DATA ADDRESS. The received address is not permitted.
Ill Data
ILLEGAL DATA VALUE. The value to be assigned is not permitted.
Dev Fail
SLAVE DEVICE FAILURE. Error during requested action.
Ack
ACKNOWLEDGE. The Slave accepted the request and is processing it, but this requires a certain amount
of time. This result is returned to prevent Master timeout errors.
Busy
SLAVE DEVICE BUSY. The Slave is busy running a command that requires a certain amount of time.
