Nortec Modbus User Manual

Page 44

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The following points may be mapped for control:

Variable

Name

Description

Addr

Type

Format Range

Unit R/W

Details

CapLimit

Set a manual

capacity restriction

for the humidifier

40006 Holding

Register Integer 50-100 %

Write

Limits output to

percentage of total

capacity

RHDem

Write RH or Demand

signal value to

humidifier

40038 Holding

Register Integer 0-100

%

Write Requires network

controls (NetSensor = 1)

Set

Writes the desired

space setpoint

when using sensor

controls

40024 Holding

Register Integer 30-95

%

Write Use only when sending

RH value to RHDem

NetSensor

Switches between

hard wired or

network control

signal

40039 Holding

Register Integer 0,1

-

Write

1 = Use Modbus to write

sensor or demand value

0 = Hard wired sensor or

wired demand signal

RHDem

Read RH or Demand

signal value from

humidifier

40008 Input

Register Integer 0-100

%

Read Used with hardwired or

network control signal

Set

Read space setpoint

(sensor type

controls only)

40024 Input

Register Integer 30-95

%

Read Sensor controls only, not

for demand type controls

CapLimit

Reads the manual

capacity restriction

for humidifier

40006 Input

Register Integer 50-100 %

Read Adjust using writeable

CapLimit variable

NetSensor Confirms humidifier

control mode

40039 Input

Register Integer 0,1

-

Read

1 = Use Modbus to write

sensor or demand value

0 = Hard wired sensor or

wired demand signal

SysDeman

d

Read system ouput

/ demand

40007 Input

Register Integer 0-100

%

Read Displays output as

percentage of capacity

HourOpt

Read operation

hours of unit

40009 Input

Register Integer

0-

infinity hrs

Read Displays cumulative

hours since startup

SmallHrs

Read minor

maintenance hours

remaining

40013 Input

Register Integer 0-6000 hrs

Read Displays hours until next

minor maintenance

LargeHrs

Read major

maintenance hours

remaining

40015 Input

Register Integer 0-6000 hrs

Read Displays hours until next

major maintenance

Status

Read humidification

status

40036 Input

Register Integer 0,1

-

Read 0 = Idle / Standby

1 = Active / Humidifying

Service

Read service

warning status

40037 Input

Register Integer 0,1

-

Read 0 = No Service Warning

1 = Service Required

Fault

Read fault status

40035 Input

Register Integer 0,1

-

Read 0 = No Fault

1 = Fault Detected

InputType

Read control signal

mode

40025 Input

Register Integer 0,1

-

Read

0 = Demand Signal

1 = RH Sensor Signal

("Transducer Control")

Connection

Read

communication

status

40015 Input

Register Integer 0,1

-

Read

0 = Communication Error

1 = Normal

Communications

Modbus Installation | 41

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