Vaisala HMW90 User manual

Vaisala HMW90 User manual
USER'S GUIDE
Vaisala HUMICAP® Humidity and
Temperature Transmitters
HMW90 Series
M211399EN-H
PUBLISHED BY
Vaisala Oyj
Street address:
Mailing address:
Phone:
Fax:
Vanha Nurmijärventie 21, FI-01670 Vantaa, Finland
P.O. Box 26, FI-00421 Helsinki, Finland
+358 9 8949 1
+358 9 8949 2227
Visit our Internet pages at www.vaisala.com.
© Vaisala 2016
No part of this manual may be reproduced, published or publicly displayed in any form
or by any means, electronic or mechanical (including photocopying), nor may its
contents be modified, translated, adapted, sold or disclosed to a third party without prior
written permission of the copyright holder. Translated manuals and translated portions
of multilingual documents are based on the original English versions. In ambiguous
cases, the English versions are applicable, not the translations.
The contents of this manual are subject to change without prior notice.
Local rules and regulations may vary and they shall take precedence over the
information contained in this manual. Vaisala makes no representations on this
manual’s compliance with the local rules and regulations applicable at any given time,
and hereby disclaims any and all responsibilities related thereto.
This manual does not create any legally binding obligations for Vaisala towards
customers or end users. All legally binding obligations and agreements are included
exclusively in the applicable supply contract or the General Conditions of Sale and
General Conditions of Service of Vaisala.
_________________________________________________________________________________
Table of Contents
CHAPTER 1
GENERAL INFORMATION ............................................................................ 7
About This Manual ................................................................... 7
Contents of This Manual ....................................................... 7
Version Information ............................................................... 8
Related Manuals ................................................................... 8
Documentation Conventions ................................................. 8
Safety ......................................................................................... 9
ESD Protection ...................................................................... 9
Recycling .................................................................................. 9
Regulatory Compliances ....................................................... 10
Trademarks ............................................................................. 10
Software License .................................................................... 10
Warranty .................................................................................. 10
CHAPTER 2
PRODUCT OVERVIEW ................................................................................ 11
Introduction to HMW90 Series .............................................. 11
HMW90 Series Transmitters .................................................. 12
Output Parameters Explained ............................................... 13
Transmitter Parts .................................................................... 14
Decorative Cover Option ....................................................... 18
CHAPTER 3
INSTALLATION ............................................................................................ 19
Configuration Before Installation ......................................... 19
Configuration of Analog Output Models .............................. 19
DIP Switches of Analog Output Models ......................... 20
Relay Configuration in DIP Mode ................................... 21
Changing Between DIP and Custom Configuration....... 23
Configuration of Digital Output Models ............................... 23
DIP Switches of Digital Output Models .......................... 24
Addressing with BACnet Protocol .................................. 25
Addressing with Modbus Protocol .................................. 25
Selecting Location ................................................................. 26
Installing the Mounting Base ................................................ 27
Wiring ...................................................................................... 27
Wiring HMW92 .................................................................... 29
Wiring HMW93 .................................................................... 30
Wiring TMW92..................................................................... 31
Wiring TMW93..................................................................... 31
Wiring HMW95 .................................................................... 32
Connecting Several Transmitters on Same
RS-485 Line (HMW95) ................................................... 32
VAISALA _________________________________________________________________________ 1
User's Guide _______________________________________________________________________
Connecting a Common AC Power Supply to Several
Transmitters ......................................................................... 33
CHAPTER 4
OPERATION ................................................................................................. 34
Display ..................................................................................... 34
Startup Screens ................................................................... 34
Measurement Screen .......................................................... 35
Indicators on the Display ..................................................... 36
Service Port ............................................................................. 36
Connecting With an MI70 Indicator ..................................... 36
Connecting With a Computer .............................................. 37
Installing the Driver for the USB Service Cable ............. 37
Terminal Application Settings ......................................... 38
List of Serial Commands ....................................................... 40
Transmitter Information ......................................................... 41
Show Transmitter Information ............................................. 41
Show Transmitter Firmware Version ................................... 41
Show Transmitter Serial Number ........................................ 41
Show Transmitter Status ..................................................... 42
Show Measured Parameters ............................................... 44
Show Command Help.......................................................... 44
Show Command List ........................................................... 45
Measurement Settings ........................................................... 45
Set Environmental Parameters ........................................... 45
Select Units ......................................................................... 46
Analog Output Settings ......................................................... 46
Set Analog Output Mode ..................................................... 46
Set Analog Output Scaling .................................................. 47
Set Output Clipping and Error Limit..................................... 48
Display Settings ...................................................................... 49
Select Parameters to Display .............................................. 49
Serial Line Output Commands .............................................. 50
Start Measurement Output .................................................. 50
Stop Measurement Output .................................................. 50
Output a Reading Once ....................................................... 51
Set Output Interval............................................................... 51
Set Output Format ............................................................... 52
Serial Line Settings ................................................................ 53
Set Remote Echo ................................................................ 53
Set Serial Line Turnaround Delay ....................................... 54
Relay Configuration in Custom Mode .................................. 54
Set Relay Mode ................................................................... 54
Set Relay Parameter and Limits .......................................... 55
Relay Configuration Examples ............................................ 56
Calibration and Adjustment Commands .............................. 57
Adjust Humidity Measurement ............................................ 57
Show Current RH Adjustment ........................................ 57
1-point Adjustment of RH Measurement ........................ 58
2-point Adjustment of RH Measurement ........................ 58
Clear User Adjustment of RH Measurement .................. 59
Adjust Temperature Measurement ...................................... 59
Show Current T Adjustment ........................................... 59
1-point Adjustment of T Measurement ........................... 59
2 ____________________________________________________________________ M211399EN-H
_________________________________________________________________________________
Clear User Adjustment of T Measurement .................... 60
Enter Calibration and Adjustment Information .................... 60
Testing Commands ................................................................ 61
Test Analog Outputs ........................................................... 61
Test Relay Operation .......................................................... 62
Other Commands ................................................................... 62
Enable Advanced Serial Commands .................................. 62
Reset Transmitter ................................................................ 62
Set BACnet Parameters ...................................................... 63
CHAPTER 5
MAINTENANCE ........................................................................................... 65
Periodic Maintenance ............................................................ 65
Cleaning .............................................................................. 65
Calibration and Adjustment ................................................. 65
Adjustment Using Display and Trimmers ....................... 66
Adjustment Using an HM70 ........................................... 67
Adjustment Using a Computer ....................................... 68
Repair Maintenance ............................................................... 69
Replacing the Measurement Module .................................. 69
CHAPTER 6
TROUBLESHOOTING ................................................................................. 71
Problem Situations ................................................................. 71
Error Messages ...................................................................... 72
Viewing Error Messages on Serial Line .............................. 73
View Currently Active Errors .......................................... 73
View Error Table ............................................................ 73
Error State ............................................................................... 74
Reverting to Factory Settings ............................................... 75
Reverting to Factory Settings Using DIP Switches ............. 75
Reverting to Factory Settings Using Service Port ............... 77
Technical Support .................................................................. 77
CHAPTER 7
TECHNICAL DATA ...................................................................................... 78
Specifications ......................................................................... 78
Spare Parts and Accessories ................................................ 80
Dimensions in mm ................................................................. 81
APPENDIX A
BACNET REFERENCE ................................................................................ 82
BACnet Protocol Implementation Conformance
Statement ................................................................................ 82
Device Object .......................................................................... 85
Relative Humidity Object ....................................................... 87
Calculated Humidity Objects ................................................ 88
Temperature Object ............................................................... 90
Operation Pressure Object.................................................. 91
Operation Altitude Object ...................................................... 92
VAISALA _________________________________________________________________________ 3
User's Guide _______________________________________________________________________
BIBBs Supported .................................................................... 93
Application Services Supported ........................................... 94
APPENDIX B
MODBUS REFERENCE ............................................................................... 95
4 ____________________________________________________________________ M211399EN-H
_________________________________________________________________________________
List of Figures
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
Figure 17
Figure 18
Figure 19
Figure 20
Figure 21
Figure 22
Figure 23
Figure 24
Figure 25
Figure 26
Figure 27
Figure 28
Figure 29
Figure 30
Figure 31
Figure 32
Figure 33
Figure 34
Figure 35
Figure 36
Figure 37
Figure 38
Figure 39
HMW90 Series Transmitters .................................................... 11
Transmitter Parts - Outside ...................................................... 14
Opening the Transmitter........................................................... 15
Transmitter Parts – Inside (Analog Output Models) ................. 16
Transmitter Parts – Inside (Digital Output Models) .................. 17
Decorative Cover ...................................................................... 18
DIP Switch Settings of Analog Output Models ......................... 20
Relay High in DIP Mode (HMW93) .......................................... 22
Relay Low in DIP Mode (HMW93) ........................................... 22
DIP Switch Settings of Digital Output Models .......................... 24
Example of Transmitter Addressing ......................................... 25
Selecting Transmitter Location ................................................. 26
Installing the Mounting Base .................................................... 27
Wiring from Behind (Recommended) ....................................... 28
Wiring from Above .................................................................... 28
Wiring HMW92 ......................................................................... 29
Three-Wire Wiring for HMW92 ................................................. 29
Wiring HMW93 ......................................................................... 30
Three-Wire Wiring for HMW93 ................................................. 30
Wiring TMW92.......................................................................... 31
Wiring TMW93.......................................................................... 31
Three-Wire Wiring for TMW93 ................................................. 31
Wiring HMW95 ......................................................................... 32
Several Transmitters on Same RS-485 Line............................ 32
Connecting a Common AC Power Supply ............................... 33
HMW93 Startup Screens.......................................................... 34
HMW93 Measurement Screen – Normal Operation ................ 35
HMW93 Measurement Screen – Problem With Measurement 35
PuTTY Terminal Application..................................................... 39
Relay Hi_Active in Custom Mode (HMW93) ............................ 56
Relay Lo_active in Custom Mode (HMW93) ............................ 56
Trimmer Centering Screen ....................................................... 66
Trimmer Centering Screen ....................................................... 67
HTM10 and TM10 Modules ...................................................... 69
Replacing the HTM10 Module (HMW93) ................................. 70
DIP Switches in Factory Reset Position ................................... 75
DIP Switches in Factory Reset Position (HMW95) .................. 76
HMW90 Series Dimensions ..................................................... 81
Dimensions of the Mounting Base ........................................... 81
VAISALA _________________________________________________________________________ 5
User's Guide _______________________________________________________________________
List of Tables
Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Table 8
Table 9
Table 10
Table 11
Table 12
Table 13
Table 14
Table 15
Table 16
Table 17
Table 18
Table 19
Table 20
Table 21
Table 22
Table 23
Table 24
Table 25
Table 26
Table 27
Table 28
Table 29
Table 30
Table 31
Table 32
Table 33
Table 34
Table 35
Table 36
Table 37
Table 38
Table 39
Table 40
Table 41
Table 42
Table 43
Table 44
Manual Revisions ....................................................................... 8
Related Manuals ......................................................................... 8
HMW90 Series Transmitters .................................................... 12
Parameters Supported by HMW90 Series ............................... 13
Rotary Switch and Relay Setpoint ............................................ 21
Serial Interface Settings ........................................................... 38
Basic Serial Commands ........................................................... 40
Advanced Serial Commands .................................................... 40
FORM Command Parameters .................................................. 53
FORM Command Modifiers ...................................................... 53
Troubleshooting Table .............................................................. 71
Error Messages ........................................................................ 72
Performance ............................................................................. 78
Operating Environment ............................................................. 78
Inputs and Outputs ................................................................... 79
Mechanics ................................................................................. 80
HMW90 Series Spare Parts and Accessories .......................... 80
Device Object Properties .......................................................... 85
Relative Humidity Object Properties ......................................... 87
Status Flags .............................................................................. 87
Reliability .................................................................................. 87
Event State ............................................................................... 87
Calculated Humidity Objects .................................................... 88
Calculated Humidity Object Properties ..................................... 88
Status Flags .............................................................................. 88
Reliability .................................................................................. 89
Event State ............................................................................... 89
Temperature Object Properties ................................................ 90
Status Flags .............................................................................. 90
Reliability .................................................................................. 90
Event State ............................................................................... 90
Operation Pressure Object Properties ..................................... 91
Status Flags .............................................................................. 91
Operation Altitude Object Parameters ...................................... 92
Status Flags .............................................................................. 92
BACnet Smart Sensor BIBBs Support...................................... 93
BACnet Standard Application Services Support ...................... 94
Modbus Functions Supported by HMW90................................ 95
HMW90 Modbus Measurement Data Registers ....................... 95
HMW90 Modbus Status Registers (Read-only) ....................... 96
HMW90 Modbus Error Code Bits ............................................. 96
HMW90 Modbus Configuration Parameter Registers .............. 96
HMW90 Modbus Device Identification...................................... 97
HMW90 Modbus Exception Responses ................................... 97
6 ____________________________________________________________________ M211399EN-H
Chapter 1 _________________________________________________________ General Information
CHAPTER 1
GENERAL INFORMATION
This chapter provides general notes for the manual and HMW90 series
transmitters.
About This Manual
This manual provides information for installing, operating, and
maintaining HMW90 series transmitters. All transmitter models in the
HMW90 series are covered, which means that some information in the
manual is model-specific.
Contents of This Manual
This manual consists of the following chapters:
- Chapter 1, General Information, provides general notes for the manual
and HMW90 series transmitters.
- Chapter 2, Product Overview, introduces the features, advantages, and
the product nomenclature.
- Chapter 3, Installation, provides you with information that is intended
to help you install the HMW90 series transmitters.
- Chapter 4, Operation, contains information that is needed to operate
the HMW90 series transmitters.
- Chapter 5, Maintenance, provides information that is needed in basic
maintenance of the HMW90 series.
- Chapter 6, Troubleshooting, describes common problems, their
probable causes and remedies, and provides contact information for
technical support.
- Chapter 7, Technical Data, provides the technical data of the HMW90
series transmitters.
- Appendix A, BACnet Reference,describes the BACnet protocol
implementation of the HMW90 series digital transmitters.
- Appendix B, Modbus Reference, describes the Modbus protocol
implementation of the HMW90 series digital transmitters.
VAISALA _________________________________________________________________________ 7
User's Guide _______________________________________________________________________
Version Information
Table 1
Manual Code
M211399EN-H
M211399EN-G
M211399EN-F
Manual Revisions
Description
April 2016. This manual. Updated sections:
- Transmitter Parts on page 14.
- Technical Data on page 78.
- Modbus Reference on page 95.
March 2015. Previous version. Added description of
the Decorative Cover accessory. Updated
description of BACnet and Modbus protocol
implementations. Various small updates.
February 2013. Updated description of DIP switch
settings for the digital output models. Updated
description of UNIT command.
Related Manuals
Table 2
Manual Code
M211511EN
M211398EN
M211476EN
M211606EN
Related Manuals
Manual Name
HMW90 and GMW90 Series Quick Guide for
Digital Output models
HMW90 and GMW90 Series Quick Guide for
Analog Output models
Decorative Cover Quick Guide
Decorative Cover Printable Insert
Documentation Conventions
Throughout the manual, important safety considerations are highlighted
as follows:
WARNING
Warning alerts you to a serious hazard. If you do not read and follow
instructions very carefully at this point, there is a risk of injury or even
death.
CAUTION
Caution warns you of a potential hazard. If you do not read and follow
instructions carefully at this point, the product could be damaged or
important data could be lost.
NOTE
Note highlights important information on using the product.
8 ____________________________________________________________________ M211399EN-H
Chapter 1 _________________________________________________________ General Information
Safety
The HMW90 series transmitter delivered to you has been tested and
approved as shipped from the factory. Note the following precautions:
WARNING
Connect only de-energized wires.
CAUTION
Do not modify the unit. Improper modification can damage the product
or lead to malfunction.
ESD Protection
Electrostatic Discharge (ESD) can cause immediate or latent damage to
electronic circuits. Vaisala products are adequately protected against
ESD for their intended use. It is possible to damage the product,
however, by delivering electrostatic discharges when touching,
removing, or inserting any objects inside the equipment housing.
To make sure you are not delivering high static voltages yourself:
- Handle ESD sensitive components on a properly grounded and
protected ESD workbench.
- Always hold component boards by the edges and avoid touching the
component contacts.
Recycling
Recycle all applicable material.
Dispose of the unit according to statutory regulations.
Do not dispose of with regular household refuse.
VAISALA _________________________________________________________________________ 9
User's Guide _______________________________________________________________________
Regulatory Compliances
The HMW90 series complies with the following performance and
environmental test standards:
- EMC-Directive
Conformity is shown by compliance with the following standards:
- EN 61326-1: Electrical equipment for measurement, control, and
laboratory use – EMC requirements – for use in industrial locations.
- EN 550022: Information technology equipment – Radio disturbance
characteristics – Limits and methods of measurement.
Trademarks
HUMICAP® is a registered trademark of Vaisala Oyj.
Windows® is a registered trademark of Microsoft Corporation in the
United States and/or other countries.
Software License
This product contains software developed by Vaisala. Use of the software
is governed by license terms and conditions included in the applicable
supply contract or, in the absence of separate license terms and
conditions, by the General License Conditions of Vaisala Group.
Warranty
Visit our Internet pages for standard warranty terms and conditions:
www.vaisala.com/warranty.
Please observe that any such warranty may not be valid in case of
damage due to normal wear and tear, exceptional operating conditions,
negligent handling or installation, or unauthorized modifications. Please
see the applicable supply contract or Conditions of Sale for details of the
warranty for each product.
10 ___________________________________________________________________ M211399EN-H
Chapter 2 ___________________________________________________________ Product Overview
CHAPTER 2
PRODUCT OVERVIEW
This chapter introduces the features, advantages, and the product
nomenclature.
Introduction to HMW90 Series
The HMW90 series transmitters are wall-mount transmitters for building
automation applications. Transmitter models in the series share the
following common features:
-
Detachable mounting base for easy installation and wiring.
Display (visible or hidden behind the cover).
Sliding cover for accessing maintenance functions.
Adjustment trimmers.
DIP switches for most common configuration tasks.
RS-485 line for temporary service use with hand-held MI70 indicator
or computer.
- User exchangeable measurement module available as a spare part.
1211-006
Figure 1
HMW90 Series Transmitters
VAISALA ________________________________________________________________________ 11
User's Guide _______________________________________________________________________
HMW90 Series Transmitters
Table 3 below lists the most important differences between the HMW90
series transmitter models. For technical specifications, see Chapter 7,
Technical Data, on page 78.
Table 3
Product Code
HMW92
HMW92D
HMW93
HMW93D
TMW92
TMW93
HMW95
HMW95D
HMW90
TMW90
HMW90 Series Transmitters
Short Description
Humidity and temperature transmitter with
- two current outputs (4 ... 20 mA)
- display hidden under sliding cover
Humidity and temperature transmitter with
- two current outputs (4 ... 20 mA)
- visible display
Humidity and temperature transmitter with
- two voltage outputs (0 ... 5 V or 0 ... 10 V)
- relay
- display hidden under sliding cover
Humidity and temperature transmitter with
- two voltage outputs (0 ... 5 V or 0 ... 10 V)
- relay
- visible display
Temperature transmitter with
- one current output (4 ... 20 mA)
- display hidden under sliding cover
Temperature transmitter with
- one voltage output (0 ... 5 V or 0 ... 10 V)
- relay
- display hidden under sliding cover
Humidity and temperature transmitter with
- digital output (isolated RS-485)
- BACnet MS/TP or Modbus protocol
(DIP switch setting)
- display hidden under sliding cover
Humidity and temperature transmitter with
- digital output (isolated RS-485)
- BACnet MS/TP or Modbus protocol
(DIP switch setting)
- visible display
HMW90 series wall-mount transmitter that has been
customized at Vaisala. Check type label on transmitter
body and terminal label on the mounting base.
Note for customized transmitters with analog outputs:
Keep the transmitter in custom mode (DIP switch 8 set to
custom) to retain the custom configuration.
12 ___________________________________________________________________ M211399EN-H
Chapter 2 ___________________________________________________________ Product Overview
Output Parameters Explained
Table 4
Parameters Supported by HMW90 Series
Parameter
Symbol
Temperature T
NOTE
Unit(s)
°C
°F
%
Relative
humidity
RH
Dewpoint
Td
°C
°F
Dewpoint
Tdf
°C
°F
Dewpoint
depression
Wet bulb
temperature
dTd
°C
°F
°C
°F
Absolute
humidity
Mixing ratio
a
Enthalpy
h
Tw
x
g/m3
gr/ft3
g/kg
gr/lb
kJ/kg
btu/lb
Description
Temperature in Celsius or
Fahrenheit scale.
Ratio of the partial pressure of
water vapor in the air to the
saturation vapor pressure of air
at the current temperature.
Temperature at which the water
vapor in the air will condense into
water at the current pressure.
Same as Td, except when the
dewpoint is below 0 °C, the
transmitter outputs frostpoint (Tf)
instead of dewpoint.
Difference between ambient
temperature and dewpoint (Tdf).
The minimum temperature that
can be reached by evaporative
cooling in the current conditions.
Quantity of water in a cubic meter
(or cubic foot) of air.
Ratio of water vapor mass per
kilogram (or pound) of dry air.
Sum of the internal energy of a
thermodynamic system.
Humidity parameters are not measured by TMW92, TMW93, and
TMW90 transmitters even though the parameters can be selected using
the service port (serial line and MI70 indicator use).
VAISALA ________________________________________________________________________ 13
User's Guide _______________________________________________________________________
Transmitter Parts
1
6
2
7
3
4
8
5
1201-004
Figure 2
Transmitter Parts - Outside
where
1
2
3
4
5
6
7
8
=
=
=
=
=
=
=
=
Locking screw for mounting base (M3×6).
Adjustment trimmers
Service port
Window for display (only in models where the display is visible)
Locking screw for slide (M3×6).
Display
Type label
Grip for slide
14 ___________________________________________________________________ M211399EN-H
Chapter 2 ___________________________________________________________ Product Overview
1
1201-005
Figure 3
Opening the Transmitter
where
1 = Push tab down with a screwdriver to open the transmitter.
To open, use a screwdriver to push down the tab that holds the
transmitter cover and mounting base together. Pull the mounting base
away from the cover, starting from the top.
To close, connect the bottom of the transmitter first, and tilt the top
forward to close the tab. Do not push on the display. Closing the
transmitter starts it up if power is supplied to the screw terminals.
CAUTION
When opening or closing the transmitter, avoid damaging the transmitter
electronics with the two plastic supports on the mounting base. See
Figure 4 on page 16 and Figure 5 on page 17.
VAISALA ________________________________________________________________________ 15
User's Guide _______________________________________________________________________
1
2
9
6
3
4
7
5
8
10
etric
-M
Non Td
ric
Met
h
On Hig
V
ay
0...5 Rel Relay
ff
RH 0V
O
w
Lo
0...1 ay
Rel elay
R
Cus
tom
DIP
Relay Set
Point
11
12
1201-006
Figure 4
Transmitter Parts – Inside (Analog Output Models)
where
1
2
3
4
5
6
=
=
=
=
=
=
7
8
9
10
=
=
=
=
11 =
12 =
Mounting base
Opening for cable (wiring from top)
Terminal label
Screw terminals
Opening for cable (wiring from behind)
Orientation arrow – should point up after the mounting base has
been installed.
Place for zip tie (for cable strain relief)
Supports
Transmitter body
DIP switches for common configuration options; see section DIP
Switches of Analog Output Models on page 20.
Rotary switch for relay setpoint (only for models with relay);
see section Relay Configuration in DIP Mode on page 21.
HTM10 module with HUMICAP® sensor (HMW models) or
TM10 module (TMW models, measures temperature only).
16 ___________________________________________________________________ M211399EN-H
Chapter 2 ___________________________________________________________ Product Overview
1
2
10
12
7
3
4
8
5
11
13
6
9
14 15
1209-013
Figure 5
Transmitter Parts – Inside (Digital Output Models)
where
1
2
3
4
5
6
7
=
=
=
=
=
=
=
8
9
10
11
=
=
=
=
12
13
14
15
=
=
=
=
Mounting base
Opening for cable (wiring from top)
Terminal label
Screw terminals.
Opening for cable (wiring from behind)
Label for RS-485 baud rate DIP switch settings
Orientation arrow – should point up after the mounting base has
been installed
Place for zip tie (for cable strain relief)
Supports
Transmitter body
DIP switches for common configuration options; see section DIP
Switches of Digital Output Models on page 24
RS-485 termination jumper (connects a 120 Ω resistor)
DIP switches for transmitter address selection
HTM10 module
HUMICAP® sensor
VAISALA ________________________________________________________________________ 17
User's Guide _______________________________________________________________________
Decorative Cover Option
The decorative cover is an installation accessory for HMW90 and
GMW90 series transmitters that can be used to hide the transmitter from
view. The cover material is transparent polycarbonate, but the idea is to
customize it to match the wall the transmitter is on. There are two easy
ways to change the cover’s appearance:
- Paint the cover to the same color as the wall.
- Insert a piece of wallpaper under the lid.
You can also use the cover as a holder for printed material, for example
an informational sign.
You must remove the sliding cover of the transmitter to install the
decorative cover. Installation instructions are included with the cover.
1
2
3
1310-042
Figure 6
Decorative Cover
1 = Decorative cover lid. If you intend to paint the cover, paint the
outer surface of this part, and leave the other part entirely
unpainted.
2 = Space for wallpaper or printed insert. The decorative cover is
delivered with a quick guide that can be used as a stencil for
cutting the required shape.
3 = Decorative cover base part.
18 ___________________________________________________________________ M211399EN-H
Chapter 3 ________________________________________________________________ Installation
CHAPTER 3
INSTALLATION
This chapter provides you with information that is intended to help you
install the HMW90 series transmitters.
Configuration Before Installation
If you need to change the settings of the transmitter, it is best to do this
before it has been installed. Available configuration options are different
for analog output models (such as HMW93) and digital output models
(for example, HMW95).
Configuration of Analog Output Models
You can configure analog output models of HMW90 series transmitters
in two ways:
- Using the DIP switches (and rotary switch on the HMW93 and
TMW93) on the component board. See the following sections for
instuctions:
- DIP Switches of Analog Output Models on page 20
- Relay Configuration in DIP Mode on page 21
- Configuring the settings in software through the service port. See
connection instructions and serial line commands in Chapter 4,
Operation, on page 34.
These two configuration methods are mutually exclusive. If the DIP
switch configuration is used, software settings have no effect on settings
that are controlled by the DIP switches. DIP switch number 8 is the
master switch that controls which configuration method is used.
VAISALA ________________________________________________________________________ 19
User's Guide _______________________________________________________________________
DIP Switches of Analog Output Models
ric
et
M
nNo Td
om
st
u
C
1 2 3 4 5 6 7 8
ric RH
et
M
P
DI
HMW92/TMW92
ric
n igh
et
H
O
M
y y
n- d ...5V ela ela
o
N T 0 R R
om
st
u
C
1 2 3 4 5 6 7 8
f
P
ric RH 10V Of ow
DI
et
.. lay y L
.
M
0 e la
R Re
HMW93/TMW93
1111-066
Figure 7
DIP
1
2
DIP Switch Settings of Analog Output Models
Position
Non-metric
Metric
Td
RH
3
4
5
6
7
8
0...5V
0...10V
Relay On
Relay Off
Relay High
Relay Low
Not used
Not used
Custom
DIP
Setting
Non-metric units (°F).
Metric units (°C).
Td (dewpoint) as humidity parameter on display and
analog output. Sets analog output scaling
to -20 ... +55 °C.
RH (relative humidity) as humidity parameter on display
and analog output. Sets analog output scaling to
0 ... 100 %RH.
0...5V analog output (both channels).
0...10V analog output (both channels).
Relay enabled.
Relay disabled.
Relay closed when measurement above setpoint.
Relay operation is linked to RH on HMW93, and T on
TMW93.
Relay closed when measurement below setpoint.
Configuration through service port only.
Configuration by DIP switches only.
NOTE
DIP switch 2 does nothing on TMW92 and TMW93.
NOTE
If DIP switch 8 is set to Custom, the transmitter ignores all other DIP
switch settings. In custom mode the transmitter uses settings that are
configured in software using the service port. Before changing the
position of this switch, see section Changing Between DIP and Custom
Configuration on page 23.
20 ___________________________________________________________________ M211399EN-H
Chapter 3 ________________________________________________________________ Installation
Relay Configuration in DIP Mode
NOTE
Relay is included on HMW93 and TMW93 transmitters only.
When the transmitter is configured using DIP switches, the functioning
of the relay is configured by DIP switch 5 and the rotary switch on the
component board:
- DIP switch 5 determines if the relay is closed above or below the
setpoint.
- The position of the rotary switch determines the setpoint according to
the table below.
Table 5
Rotary Switch and Relay Setpoint
Rotary Switch Position
0
1
2
3
4
5
6
7
8
9
NOTE
Setpoint on HMW93
5 %RH
10 %RH
20 %RH
30 %RH
40 %RH
50 %RH
60 %RH
70 %RH
80 %RH
90 %RH
Setpoint on TMW93
0 °C (32 °F)
5 °C (41 °F)
10 °C (50 °F)
15 °C (59 °F)
20 °C (68 °F)
25 °C (77 °F)
30 °C (86 °F)
35 °C (95 °F)
40 °C (104 °F)
45 °C (113 °F)
The rotary switch only has 10 positions. Do not turn the switch so that it
is between two positions.
For examples of relay behavior in DIP mode, see Figure 8 and Figure 9
on page 22. Note also the following:
- Relay operation in DIP mode is linked to RH measurement on
HMW93, and to T measurement on TMW93.
- Relay contacts are open if the transmitter is in error state (an active
error is present).
- Relay contacts are open when transmitter is powered off.
If you need to configure the relay for some other parameter or need
additional configuration options, see section Relay Configuration in
Custom Mode on page 54.
VAISALA ________________________________________________________________________ 21
User's Guide _______________________________________________________________________
Rotary switch set to 6 (60 %RH)
DIP 5 set to “Relay High”
Relay closed
Relay open
100
Relative Humidity (%)
90
80
70
60
50
40
30
20
10
0
Time
Figure 8
Rotary switch set to 6 (60 %RH)
DIP 5 set to “Relay Low”
100
1111-117
Relay High in DIP Mode (HMW93)
Relay closed
Relay open
Relative Humidity (%)
90
80
70
60
50
40
30
20
10
0
Time
Figure 9
NOTE
Relay Low in DIP Mode (HMW93)
1111-118
There is a hysteresis around the setpoint value to prevent rapid relay
switching when the measured value moves around the setpoint. This
means that the relay will not close or open exactly at the setpoint, but
slightly above and below.
-
On HMW93 the hysteresis is 2 %RH in both directions.
-
On TMW93 the hysteresis is 1 °C (1.8 °F) in both directions.
22 ___________________________________________________________________ M211399EN-H
Chapter 3 ________________________________________________________________ Installation
Changing Between DIP and Custom Configuration
If you change the position of DIP switch 8, note the following:
When changing from DIP to Custom: The DIP settings that were used
when the power was last on are carried over to the custom settings at next
power up.
When changing from Custom to DIP: Current custom settings are
overwritten by the settings from the DIP switches at next power up.
Display layout and analog outputs are set to default settings:
- Channel 1 output parameter T, scaling -5 ... +55 °C.
- Channel 2 output parameter RH, scaling 0 ... 100 %RH
(if humidity measurement is present on the transmitter).
If you have a factory customized transmitter, this may lead to a situation
where the wiring label on the mounting base does not reflect the outputs
of the transmitter. To return the transmitter to its factory customized
settings, follow the instructions in section Reverting to Factory Settings
on page 75.
Configuration of Digital Output Models
Digital output models of the HMW90 series have the following
configuration interfaces:
- DIP switches on the component board control operating protocol,
serial line settings, and transmitter MAC address. For instructions, see
DIP Switches of Digital Output Models on page 24.
- You can set a jumper for RS-485 line termination on the component
board (120 Ω resistor). For location of the jumper, see Figure 5 on
page 17.
- Other settings are configured in software. You can change most
configuration settings through the service port. For connection
instructions and serial line commands, see Chapter 4, Operation, on
page 34.
- Some configuration actions can be done using the BACnet and
Modbus protocols. See the following appendices for protocol
implementation details:
- Appendix A, BACnet Reference, on page 82.
- Appendix B, Modbus Reference, on page 95.
VAISALA ________________________________________________________________________ 23
User's Guide _______________________________________________________________________
DIP Switches of Digital Output Models
Modbus
A
B
Parity Even
Non-Metric
C
128 64 32 16 8
4
2
1
ON
ON
1 2 3 4 5 6 7 8
Baud
Rate
Metric
Parity None
BACnet
1 2 3 4 5 6 7 8
Address
(Binary Weighting)
HMW95
1209-016
Figure 10
DIP
1
2 ... 4
5
DIP Switch Settings of Digital Output Models
Position
Modbus
BACnet
A
B
Off
Off
Off
Off
Off
On
Off
On
On
Off
On
Off
On
On
On
On
Parity Even
Parity None
6
Non-Metric
Metric
7
8
Not used
Not used
C
Off
On
Off
On
Off
On
Off
On
Setting
Modbus protocol in use.
BACnet protocol in use.
Serial line baud rate.
Automatic (default).
4800 (not available with BACnet protocol)
9600
19200
38400
57600
76800
115200
Selects 8 data bits, parity even, one stop bit
(8E1) for Modbus protocol.
Selects 8 data bits, parity none, and two stop
bits (8N2) for Modbus protocol.
Uses non-metric units on display and service
port. No effect on Modbus and BACnet.
Uses metric units on display and service port.
No effect on Modbus and BACnet.
NOTE
If the serial line baud rate is set to Automatic, the transmitter attempts to
determine the baud rate of the traffic in the RS-485 network. The
transmitter cycles through all baud rate choices, listening for 10 seconds
at each rate. When it detects valid RS-485 traffic, it remains at the
detected baud rate until it is reset or power cycled.
NOTE
The parity setting is only relevant for Modbus protocol, in which it
chooses between 8N2 (parity none) and 8E1 (parity even) formats.
24 ___________________________________________________________________ M211399EN-H
Chapter 3 ________________________________________________________________ Installation
Dip switches marked Address (Binary Weighting) set the MAC address
of the HMW90 series digital transmitter. The address is encoded in eight
bit binary form, with each numbered switch representing a single bit. For
example:
128 64 32 16 8
4
2
1
ON
1 2 3 4 5 6 7 8
Binary: 10100001
= Decimal: 161
(128 + 32 + 1)
1209-009
Figure 11
Example of Transmitter Addressing
Addressing with BACnet Protocol
BACnet MS/TP MAC address range is 0 … 255. The transmitter is a
BACnet MS/TP master if address is below 128. Otherwise the transmitter
is a slave.
Addressing with Modbus Protocol
Transmitter is always a Modbus slave. MAC Address range for Modbus
slaves is 1 … 247.
VAISALA ________________________________________________________________________ 25
User's Guide _______________________________________________________________________
Selecting Location
The conditions at the location should represent well the area of interest.
Do not install the transmitter on the ceiling. Avoid placing the transmitter
near heat and moisture sources, close to the discharge of the supply air
ducts, and in direct sunlight.
1111-070
Figure 12
Selecting Transmitter Location
Use the mounting holes to attach the mounting base securely. Use at least
two screws (not included, max screw diameter 4 mm). Remember to
leave sufficient clearance below the transmitter to operate the slide. For
mounting dimensions, see section Dimensions in mm on page 81.
NOTE
When bringing a cable through the wall, note that the hole may also
supply air from outside the room into the transmitter. This may affect the
measurement readings. Seal the cable opening if necessary.
26 ___________________________________________________________________ M211399EN-H
Chapter 3 ________________________________________________________________ Installation
Installing the Mounting Base
Use the mounting holes to attach the mounting base securely. Use at least
two screws (not included). The arrow on the mounting base must point
straight up after installation. Proper orientation is important: air must
flow through the vents on the bottom and top.
1310-043
Figure 13
Installing the Mounting Base
Wiring
Connect the wiring to the screw terminals on the mounting base. The
supply voltage and terminal assignments are model-specific. Max wire
size 2 mm2 (AWG14). You can bring the cable to the housing from
above or from behind (recommended).
After completing the wiring, connect the transmitter body over the
mounting base. Note that mounting bases are model-specific.
WARNING
Connect only de-energized wires.
VAISALA ________________________________________________________________________ 27
User's Guide _______________________________________________________________________
1310-044
Figure 14
Wiring from Behind (Recommended)
1310-045
Figure 15
Wiring from Above
28 ___________________________________________________________________ M211399EN-H
Chapter 3 ________________________________________________________________ Installation
Wiring HMW92
You must connect the RH channel of the HMW92, even if you only want
to measure temperature. Connecting the T channel is optional.
-T +T -RH +RH
mA
Power supply
10 ... 28 VDC
RL = 0 ... 600 Ω
Power supply
10 ... 28 VDC
RL = 0 ... 600 Ω
mA
1111-067
Figure 16
Wiring HMW92
If you want to use a single power supply for the HMW92, you must
connect the positive terminals (+T and +RH) together.
-T +T -RH +RH
mA
Power supply
10 ... 28 VDC
mA
RL = 0 ... 600 Ω
1211-007
Figure 17
Three-Wire Wiring for HMW92
VAISALA ________________________________________________________________________ 29
User's Guide _______________________________________________________________________
Wiring HMW93
Recommended wiring for long cables:
Relay -RH +RH -T +T -Vs +Vs
max. 50 VDC
500 mA
Power supply
18 ... 35 VDC
or 24 VAC ±20%
V
V
RL = 10 kΩ min.
1111-068
Figure 18
Wiring HMW93
3-wire connection with -Vs as common ground. Maximum cable
resistance is 2.5 Ω (24V supply, 0 ... 10 V output, relay not used).
Relay -RH +RH -T +T -Vs +Vs
V
V
Power supply
18 ... 35 VDC
or 24 VAC ±20%
RL = 10 kΩ min.
1111-069
Figure 19
Three-Wire Wiring for HMW93
30 ___________________________________________________________________ M211399EN-H
Chapter 3 ________________________________________________________________ Installation
Wiring TMW92
-T +T
Power supply
10 ... 28 VDC
RL = 0 ... 600 Ω
mA
1202-117
Figure 20
Wiring TMW92
Wiring TMW93
Recommended wiring for long cables:
Relay
-T +T -Vs +Vs
Power supply
18 ... 35 VDC
or 24 VAC ±20%
V
max. 50 VDC
500 mA
RL = 10 kΩ min.
1202-118
Figure 21
Wiring TMW93
3-wire connection with -Vs as common ground. Maximum cable
resistance is 2.5 Ω (24V supply, 0 ... 10 V output, relay not used).
Relay
-T +T -Vs +Vs
V
Power supply
18 ... 35 VDC
or 24 VAC ±20%
RL = 10 kΩ min.
1202-119
Figure 22
Three-Wire Wiring for TMW93
VAISALA ________________________________________________________________________ 31
User's Guide _______________________________________________________________________
Wiring HMW95
The RS-485 line of the transmitter is isolated from the power supply. A
separate ground reference terminal (GND) is provided for the RS-485
connection.
If you are using a shielded cable, you can use the Shld terminal to hold
the exposed part of the shield. Note that the Shld terminal is floating
(not electrically connected).
Shld GND D- D+ -Vs +Vs
Power supply
+ 18 ... 35 VDC
- or 24 VAC ±20%
RS-485
1209-014
Figure 23
Wiring HMW95
Connecting Several Transmitters on Same RS-485
Line (HMW95)
Set the RS-485 termination jumper to “ON” on the transmitter that is at
the end of the line. This terminates the line with a 120 Ω resistor. For
location of the jumper, see section Transmitter Parts - Inside on page 6.
Connect the cable shield to ground on the building controller side.
Building controller
Power
supply
Transmitter
+Vs
-Vs
RS-485:
D+
BACnet or
MODBUS
master
DGND
SHIELD
Transmitter
Transmitter
+Vs
+Vs
+Vs
-Vs
-Vs
-Vs
D+
D+
D+
D-
D-
D-
GND
GND
GND
Shld
Shld
Shld
Connect shield on controller side
Set RS-485
termination jumper
1209-015
Figure 24
Several Transmitters on Same RS-485 Line
32 ___________________________________________________________________ M211399EN-H
Chapter 3 ________________________________________________________________ Installation
Connecting a Common AC Power Supply
to Several Transmitters
If you are connecting a common 24 VAC power supply to several
transmitters, make sure to connect the same terminal to +Vs and –Vs on
all transmitters. This will avoid a short-circuit through the shared
common line at the controller; see Figure 25 below.
HMW90
24 VAC
Supply
voltage
+Vs
OUT
-Vs
GND
CONTROLLER
Signal
output
HMW90
Supply
voltage
+Vs
OUT
-Vs
GND
Shared
common
line
Signal
output
1112-026
Figure 25
Connecting a Common AC Power Supply
VAISALA ________________________________________________________________________ 33
User's Guide _______________________________________________________________________
CHAPTER 4
OPERATION
This chapter contains information that is needed to operate the HMW90
series transmitters.
Display
Startup Screens
When the transmitter is powered on, it displays a sequence of
information screens. The screens are shown for a few seconds each.
1111-073, 1111-074
Figure 26
HMW93 Startup Screens
34 ___________________________________________________________________ M211399EN-H
Chapter 4 _________________________________________________________________ Operation
Measurement Screen
Measurement screen shows the measured parameters and currently active
indicators.
1111-071
Figure 27
HMW93 Measurement Screen – Normal Operation
If there is a problem with measurement, affected readings are replaced
with stars. The alarm indicator and an error message will also appear on
the screen.
1111-072
Figure 28
HMW93 Measurement Screen – Problem With
Measurement
VAISALA ________________________________________________________________________ 35
User's Guide _______________________________________________________________________
Indicators on the Display
Indicator
Position on Screen
Top right
Top right
Top right
Top left
Bottom left
Meaning
Communication arrows. Shown only on
models with digital output. Down arrow is
shown when transmitter detects valid traffic
on the RS-458 line. Up arrow is shown when
transmitter is transmitting to the RS-485 line.
Is shown when relay contacts are open
(HMW93 and TMW93 only).
Is shown when relay contacts are closed
(HMW93 and TMW93 only).
Is shown when an MI70 Indicator is
connected to the service port.
Is shown if an error is active. The error
message is written after the indicator. See
section Error Messages on page 72.
Service Port
You can connect to the service port on the HMW90 series transmitters
using a computer or an MI70 indicator. The MI70 indicator is the handheld display device that is included with, for example, the Vaisala
HUMICAP® Hand-Held Humidity and Temperature Meter HM70.
CAUTION
The service port is not galvanically isolated from the rest of the
transmitter electronics. Connect only equipment with a floating power
supply (not grounded) to the service port. If you connect a device that is
grounded to a different potential than the transmitter’s power supply, you
will affect the accuracy of the transmitter’s analog outputs. You may
even affect the transmitter’s functionality or cause damage to the
transmitter.
Connecting With an MI70 Indicator
When connecting using an MI70 indicator, use the connection cable for
HM70 hand-held meter (Vaisala order code 219980). The following
functionality is available when using the MI70:
- Standard MI70 functions such as viewing, logging, and graphs of
measurement results.
- Calibration and adjustment fuctions for the transmitter. For more
information, see section Adjustment Using an HM70 on page 67.
- Setting of the pressure compensation value for humidity measurement
(Environment menu in the MI70).
36 ___________________________________________________________________ M211399EN-H
Chapter 4 _________________________________________________________________ Operation
Connecting With a Computer
Connecting with a computer allows you to configure and troubleshoot
your transmitter using serial line commands. For a list of commands, see
section List of Serial Commands on page 40.
When connecting using a computer, use the Vaisala USB cable (Vaisala
order code 219690) and a suitable terminal application:
- If you have not used the Vaisala USB cable before, install the driver
before attempting to use the cable. Refer to section Installing the
Driver for the USB Service Cable on page 37 for detailed instructions.
- For more information on using a terminal application, see section
Terminal Application Settings on page 38.
Installing the Driver for the USB Service Cable
Before taking the USB service cable into use, you must install the
provided USB driver on your computer. When installing the driver, you
must acknowledge any security prompts that may appear.
1.
Check that the USB service cable is not connected. Disconnect the
cable if you have already connected it.
2.
Insert the media that came with the cable, or download the latest
driver from www.vaisala.com/software.
3.
Execute the USB driver installation program (setup.exe), and
accept the installation defaults. The installation of the driver may
take several minutes.
4.
After the driver has been installed, connect the USB service cable
to a USB port on your computer. Windows will detect the new
device, and use the driver automatically.
5.
The installation has reserved a COM port for the cable. Verify the
port number, and the status of the cable, using the Vaisala USB
Instrument Finder program that has been installed in the
Windows Start menu.
Windows will recognize each individual cable as a different device, and
reserve a new COM port. Remember to use the correct port in the
settings of your terminal program.
VAISALA ________________________________________________________________________ 37
User's Guide _______________________________________________________________________
Terminal Application Settings
The serial interface settings of the service port are presented in Table 6
below. The settings are fixed, and cannot be changed by the user.
Table 6
Property
Baud rate
Parity
Data bits
Stop bits
Flow control
Serial Interface Settings
Description / Value
19200
None
8
1
None
The steps below describe how to connect to the transmitter using the
PuTTY terminal application for Windows (available for download at
www.vaisala.com/software) and a USB serial interface cable:
1.
2.
3.
4.
5.
NOTE
Connect the USB serial interface cable between your computer and
the service port of the transmitter.
Start the PuTTY application.
Select the Serial settings category, and check that the correct COM
port is selected in the Serial line to connect to field.
Note: You can check which port the USB cable is using with the
Vaisala USB Instrument Finder program that has been installed
in the Windows Start menu.
Check that the other serial settings are correct for your connection,
and change if necessary. Flow control should be set to None unless
you have a reason to change it.
Click the Open button to open the connection window and start
using the serial line.
If PuTTY is unable to open the serial port you selected, it will show you
an error message instead. If this happens, restart PuTTY and check the
settings.
6.
You may need to adjust the Local echo setting in the Terminal
category to see what you are typing on the serial line. You must
enable either local echo (on the terminal side) or remote echo (on
the transmitter side, adjustable using the ECHO command).
To access the configuration screen while a session is running, click
the right mouse button over the session window, and select Change
Settings... from the pop-up menu.
38 ___________________________________________________________________ M211399EN-H
Chapter 4 _________________________________________________________________ Operation
0807-004
Figure 29
PuTTY Terminal Application
VAISALA ________________________________________________________________________ 39
User's Guide _______________________________________________________________________
List of Serial Commands
Some commands, such as RSEL, are not available if the required feature
is not present on the transmitter, or the command is not relevant.
All commands can be issued either in uppercase or lowercase. In the
command examples, the keyboard input by the user is in bold type.
The notation <cr> refers to pressing the carriage return (Enter) key on
your computer keyboard. Enter a <cr> to clear the command buffer
before starting to enter commands.
Table 7
Basic Serial Commands
Command
?
CALCS
ECHO
ENV
ERRT
ERRS
FORM [modifier string]
HELP
INTV [0 ... 9999 s/min/h]
PASS [9000]
R
RESET
S
SDELAY [0 ... 255]
SEND
SNUM
STATUS
UNIT [m/n]
VERS
Table 8
Description
Show transmitter information.
Show all measured and calculated parameters.
Show or set remote echo mode.
Show or set environmental parameters.
Show error table.
Show currently active errors.
Show or set output format.
Show list of currently available serial commands.
Set continuous output interval for R command.
Access advanced serial commands.
Start the continuous outputting.
Reset the transmitter.
Stop the continuous outputting.
Show or set serial line turnaround delay in
milliseconds.
Output measurement message once.
Show transmitter serial number.
Show transmitter status.
Select metric or non-metric units.
Show transmitter firmware version.
Advanced Serial Commands
Command
AMODE
AOVER
ASEL
ATEST
BACNET
CDATE
CRH
CT
CTEXT
DSEL
FRESTORE
RMODE
RSEL
RTEST [open/closed]
Description
Show or set analog output mode.
Show or set analog output overrange and clipping
behavior.
Show or set analog output parameter.
Test analog putput.
Show or set BACnet parameters.
Show or set calibration date.
Calibrate and adjust RH measurement.
Calibrate and adjust T measurement.
Show or set calibration information.
Select parameters to display on screen.
Restore transmitter to factory settings.
Show or set relay operation mode.
Show or set relay parameter and limits.
Test relay operation.
40 ___________________________________________________________________ M211399EN-H
Chapter 4 _________________________________________________________________ Operation
Transmitter Information
Show Transmitter Information
The ? command outputs a listing of device information.
?<cr>
Example:
>?
Device
SW version
SNUM
: HMW93
: 1.00.0.0000
: G5130008
HTM10 module information
Software version
: 1.00.0
SNUM
: G5130007
Show Transmitter Firmware Version
Use the VERS command to show the transmitter model and firmware
version.
VERS<cr>
Example:
>vers
HMW93 / 1.00.0
Show Transmitter Serial Number
Use the SNUM command to show the transmitter serial number.
SNUM<cr>
Example:
>snum
Serial number
: G5130008
VAISALA ________________________________________________________________________ 41
User's Guide _______________________________________________________________________
Show Transmitter Status
Use the STATUS command to view detailed information on transmitter
model and configuration.
STATUS [function]<cr>
where
Function = Optional switch to display a more detailed status for
BACnet or Modbus protocol (available on transmitter
models with digital output). Available switches
are -bacnet and –modbus.
Example (display detailed BACnet status):
>status –bacnet
* BACnet module (BACNET) *
BACnet protocol
: active
MAC
: 0 (00h)
Device Instance
: 6 (00000006h)
Name
: NOT_SET
Location
: Location
Description
: Description
MAX_MASTER
: 127 (7Fh)
Node type
: Master
Baud setting
: Auto
Current baudrate
: 19200 8N1
Baudrate locked
: No
Baud detection interval: 10 s
DCC
: Communication enabled
Valid frames
: 0
Invalid frames
: 0
Unwanted frames
: 0
Lost tokens
: 0
Failed TX
: 0
42 ___________________________________________________________________ M211399EN-H
Chapter 4 _________________________________________________________________ Operation
Example (display full status):
>status
Device Name
Copyright
SW Name
SW Model
SW version
Serial number
Address
:
:
:
:
:
:
:
HMW92
Copyright Vaisala Oyj 2012
XM90
XM9x
1.0.3.3728
H1840005
0
SUB FUNCTIONS
* Serial Port (COM1) *
Mode
: STOP
* Error Manager (ERR) *
Status
: NORMAL
Active errors
: 0
* MCI communication (MCI) *
Status
: NORMAL
* Analog output 1 (AOUT1) *
Quantity
: x
Input range
: 0.000 ... 700.000 gr/lb
Output range
: 4.000 ... 20.000 mA
Output clipping
: 0.00 % (4.00 ... 20.00 mA)
Valid output range : 5.00 % (3.20 ... 20.80 mA)
Error value
: 3.600 mA
Input now
: 17.301 gr/lb
Output now
: 4.395 mA
State
: Normal
* Analog output 2 (AOUT2) *
Quantity
: a
Input range
: 0.000 ... 10000.210 gr/ft3
Output range
: 4.000 ... 20.000 mA
Output clipping
: 0.00 % (4.00 ... 20.00 mA)
Valid output range : 5.00 % (3.20 ... 20.80 mA)
Error value
: 3.600 mA
Input now
: 1280.323 gr/ft3
Output now
: 6.048 mA
State
: Normal
* Measurement module (HTM10) *
Status
: NORMAL
Factory date
: 20120425
VAISALA ________________________________________________________________________ 43
User's Guide _______________________________________________________________________
Show Measured Parameters
Use the CALCS command to list the measurement parameters that are
supported by the HMW90 series transmitters. RH and T are measured
directly by the transmitter, the rest are calculated based on the measured
values.
CALCS<cr>
Example:
>calcs
RH
T
Tdf
Td
Tw
h
x
a
dTd
NOTE
-
Relative Humidity
Temperature
Dew/Frost point temperature
Dew point temperature
Wetbulb temperature
Enthalpy
Mixing ratio
Absolute humidity
Dew/frostpoint depression
Using this command on TMW92 and TMW93 transmitters will list all
parameters, even though these transmitters only provide the temperature
parameters.
Show Command Help
To see a short description of an individual command, issue the command
with a question mark as a parameter.
Example:
>calcs ?
Display measured quantities
44 ___________________________________________________________________ M211399EN-H
Chapter 4 _________________________________________________________________ Operation
Show Command List
Use the HELP command to list the currently available serial commands.
If the PASS command has not been used, only the basic serial commands
are available.
HELP<cr>
Example (shows basic serial commands, advanced commands are not
enabled here):
>help
?
CALCS
ECHO
ENV
ERRT
ERRS
FORM
HELP
INTV
PASS
R
RESET
SDELAY
SEND
SNUM
STATUS
UNIT
VERS
Measurement Settings
Set Environmental Parameters
Use the ENV command to set environmental parameters that affect the
measurement. For HMW90 series transmitters you can set the ambient
pressure value that is used for pressure compensation of calculated
parameters.
ENV [pressure]<cr>
where
pressure = Ambient pressure in hPa.
Example:
>env 1013.3
Pressure (hPa)
: 1013.3
VAISALA ________________________________________________________________________ 45
User's Guide _______________________________________________________________________
Select Units
Use the UNIT command to select metric or non-metric output units.
Only affects data shown on the display and service port, has no effect on
the analog and digital outputs. This command is not available on the
digital output models (for example, HMW95).
UNIT [x]<cr>
where
x
=
Selects the unit type to output:
m = metric units, for example, Celsius
n = non-metric units, for example, Fahrenheit
Example:
>unit m
Unit
: Metric
Analog Output Settings
NOTE
If you want to change analog output settings, you must set the
transmitter’s configuration DIP switch 8 to position Custom. If the
switch is set to DIP, the settings are view-only.
NOTE
Commands for configuring analog outputs are not available on digital
output models (for example, HMW95).
Set Analog Output Mode
Use the AMODE command to set the analog output mode and error
level. Note that you cannot change between analog output types, for
example, from voltage to current output.
AMODE [channel lo_value hi_value error_value]<cr>
where
channel
lo_value
hi_value
error_value
=
=
=
=
Analog output channel, 1 or 2.
Low limit of the channel.
High limit of the channel.
Error value of the channel.
Example (show current configuration):
>pass 9000
>amode
Aout 1 range ( V)
: 0.00 ... 5.00 (error: 5.50)
46 ___________________________________________________________________ M211399EN-H
Chapter 4 _________________________________________________________________ Operation
Aout 2 range ( V)
: 0.00 ... 5.00 (error: 5.50)
Example (set channel 1 to 0 ... 1 V output, with error level at 2 V):
>amode 1 0 1 2
Aout 1 range ( V)
: 0.00 ... 1.00 (error: 2.00)
Set Analog Output Scaling
Use the ASEL command to select the output parameter and scaling for
analog output channels.
ASEL [channel parameter lo_value hi_value]<cr>
where
channel = Analog output channel, 1 or 2.
parameter = Parameter that is output on the channel.
Available parameters are:
lo_value
hi_value
RH
relative humidity
T
temperature
Tdf
dew/frost point temperature
Td
dew point temperature
Tw
wetbulb temperature
h
enthalpy
x
mixing ratio
a
absolute humidity
dTd
dew/frost point depression
= Low limit of the scaling, in the units of the selected
parameter.
= High limit of the scaling in the units of the selected
parameter.
Example (set channel 1 to output dewpoint, in the range -10 ... 20 °C):
>pass 9000
>asel 1 TD -10 20
Aout 1 quantity
: Td (-10.00 ... 20.00 'C)
VAISALA ________________________________________________________________________ 47
User's Guide _______________________________________________________________________
Set Output Clipping and Error Limit
Use the AOVER command to define the behavior of the analog outputs
when the measured value is outside the scaled output range.
AOVER [channel clip% valid%]<cr>
where
channel = Analog output channel, 1 or 2.
clip%
= Output margin (%) at which the output is clipped.
Range 0 ... 20, default is 0.
valid% = Output margin (%) at which the output of the channel
goes into the error state. Range 0 ... 20, default is 5.
The error state is defined using the AMODE command,
see section Set Analog Output Mode on page 46.
NOTE
These settings have no effect on the measurements shown on the display.
The display will always show the currently measured values, even
outside the scaled output range, as long as the measurement is still
functioning.
For example, first check the analog output settings using ASEL,
AMODE, and AOVER commands:
>pass 9000
>asel
Aout 1 quantity
Aout 2 quantity
: RH (0.00 ... 100.00 %)
: T (-5.00 ... 55.00 'C)
>amode
Aout 1 range ( V)
Aout 2 range ( V)
: 1.00 ... 5.00 (error: 6.00)
: 1.00 ... 5.00 (error: 6.00)
>aover
Aout 1
Aout 1
Aout 2
Aout 2
clipping
error limit
clipping
error limit
:
:
:
:
0.00
5.00
0.00
5.00
%
%
%
%
The parameter for channel 2 is T, with standard output range 1 ... 5 V and
scaling -5 ... 55 °C. Error state is 6 V, which is set when the measured
value is 5% outside the scaled output range.
Now give the following AOVER command:
>aover 2 10.0 20.0
Aout 2 clipping
Aout 2 error limit
: 10.00 %
: 20.00 %
48 ___________________________________________________________________ M211399EN-H
Chapter 4 _________________________________________________________________ Operation
Channel 2 now behaves like this:
- Clipping is now set to 10%, meaning the output is allowed to vary
between 0.6 ... 5.4 V. The channel will output the measurement for
-11 ... 61 °C, but range 1 ... 5 V remains scaled to show -5 ... 55 °C.
- Error limit is 20%, which means channel 2 will show the error state
(6 V) when the measured value is 20% outside the scaled output
range. With the settings above, this will happen if the measured
temperature is outside range -17 ... 67 °C.
- The output will never actually be between 5.4 and 6.0 V because of
clipping.
Display Settings
Select Parameters to Display
Use the DSEL command to select the parameters that are displayed on
the transmitter screen. You can select parameters by abbreviation, or
select same parameters as are assigned to the analog outputs. If only one
parameter is selected, it is shown vertically centered on the transmitter
screen.
DSEL [Q1 Q2 Q3]<cr>
where
Q1
Q2
Q3
= First parameter to show on the screen. Available parameters
are:
out1
Same parameter as analog output channel 1
out2
Same parameter as analog output channel 2
RH
relative humidity
T
temperature
Tdf
dew/frost point temperature
Td
dew point temperature
Tw
wetbulb temperature
h
enthalpy
x
mixing ratio
a
absolute humidity
dTd
dew/frost point depression
= Second parameter to show on the screen. Available
parameters are the same as for Q1.
= Third parameter to show on the screen. Available parameters
are the same as for Q1.
VAISALA ________________________________________________________________________ 49
User's Guide _______________________________________________________________________
Example (show currently displayed parameters):
9000
>pass
>dsel
Quant
Quant
Quant
1
2
3
: T
: RH
: Disabled
Example (change display to only show RH):
>dsel RH
OK
Example (change display to show same parameters as are assigned to
analog output channels):
>dsel out1 out2
OK
Serial Line Output Commands
Start Measurement Output
Use the R command to start the continuous outputting of measurement
values as an ASCII text string to the serial line. The format of the
measurement message is set with the FORM command.
R<cr>
Example (measurement message in default format):
>r
RH =
RH =
RH =
RH =
...
21.71
21.72
21.77
21.77
%RH
%RH
%RH
%RH
T
T
T
T
=
=
=
=
23.13
23.12
23.12
23.12
'C
'C
'C
'C
Outputting the results continues in intervals issued with the command
INTV. You can stop the output with the S command. Since the interface
is half-duplex, you must enter the commands when the transmitter is not
outputting.
Stop Measurement Output
You can stop the measurement output with the S command:
S<cr>
50 ___________________________________________________________________ M211399EN-H
Chapter 4 _________________________________________________________________ Operation
Output a Reading Once
Use the SEND command to output a single measurement message.
SEND<cr>
Example:
>send
RH = 21.72 %RH
T = 23.12 'C
Set Output Interval
Use the INTV command to change the output interval of the
automatically repeating measurement messages. The measurement
messages are repeated in the RUN mode, or after the R command has
been given.
INTV [n xxx]<cr>
where
n
xxx
= time interval, range 0 ... 9999.
= time unit = "S", "MIN", or "H"
The shortest output interval (with n = 0) outputs the measurement
messages as quickly as the transmitter produces them, without additional
delay.
Example:
>intv 1 min
Output interval
: 1 min
VAISALA ________________________________________________________________________ 51
User's Guide _______________________________________________________________________
Set Output Format
Use the serial line command FORM to change the measurement message
sent by the transmitter on the service port. You can freely define the
output message to include the desired parameters, formatting options,
text strings, and additional fields.
FORM [modifier string]<cr>
where
modifier string =
String of parameters and modifiers that defines the
output format, length 1 ... 150 characters.
Maximum length may be shorter when text strings
are used. See Table 9 and Table 10 on page 53,
and examples below.
Command to set default format:
>form /
Example of default output:
RH =
RH =
RH =
RH =
...
5.17
5.17
5.18
5.18
%RH
%RH
%RH
%RH
T
T
T
T
=
=
=
=
24.33
24.33
24.33
24.33
'C
'C
'C
'C
Command to set output format as Tdf and T with Modulus-256
checksum:
>form "Tdf =" U3 4.2 tdf "
T =" U3 3.2 t CS2 \r \n
Output example:
Tdf
Tdf
Tdf
Tdf
...
=
=
=
=
-15.72
-15.71
-15.71
-15.69
'C
'C
'C
'C
T
T
T
T
=
=
=
=
24.38
24.38
24.38
24.38
'C
'C
'C
'C
C9
C8
C8
CF
Command to set output format as Tdf and T, with start of text (ASCII
character 002) and end of text (003) ASCII codes, and without line feed
and carriage return at the end:
>form #002 "Tdf =" U3 3.2 tdf "
T =" U3 3.2 t #003
Output example (ASCII codes not visible here):
Tdf =-15.14 'C T = 24.40 'CTdf =-15.14 'C T = 24.40 'CTdf
=-15.14 'C T = 24.40 'CTdf =-15.14 'C T = 24.40 'CTdf =15.13 'C T = 24.40 'CTdf =-15.13 'C T = 24.40 'C ...
52 ___________________________________________________________________ M211399EN-H
Chapter 4 _________________________________________________________________ Operation
Table 9
FORM Command Parameters
Measured Parameter
Relative humidity
Temperature
Dew/frost point temperature
Dewpoint temperature
Wetbulb temperature
Enthalpy
Mixing ratio
Absolute humidity
Dew/frost point depression
Table 10
Modifier
x.y
#t
#r
#n
""
#xxx
Ux
CS2
CS4
CSX
NOTE
Abbreviation in FORM Command
RH
T
Tdf
Td
Tw
h
x
a
dTd
FORM Command Modifiers
Description
Length modifier (number of digits and decimal places)
Tabulator
Carriage-return
Line feed
String constant, length 1 ... 15 characters
ASCII code value (decimal) of a special character;
for example, #027 for ESC
Shows the name of the measurement unit using “x” number
of characters. For example, U3 shows the name of the
measurement unit with three characters
Modulus-256 checksum of message sent so far, ASCII
encoded hexadecimal notation
Modulus-65536 checksum of message sent so far, ASCII
encoded hexadecimal notation
NMEA xor-checksum of message sent so far, ASCII encoded
hexadecimal notation
When entering modifiers, you can also use the backslash character “\”
instead of the hash “#”.
Serial Line Settings
Set Remote Echo
Use the ECHO command to enable or disable remote echo by the
transmitter.
ECHO [on/off]<cr>
Example:
>echo on
Echo
: ON
VAISALA ________________________________________________________________________ 53
User's Guide _______________________________________________________________________
Set Serial Line Turnaround Delay
With the SDELAY command you can set the turnaround delay of the
transmitter (time waited before replying to an incoming message) or view
the currently set delay value.
SDELAY [delay]<cr>
where
delay =
Turnaround delay in milliseconds, range 1 … 1000.
Default is 1.
Example:
>sdelay 5
COM1 transmit delay : 5
Relay Configuration in Custom Mode
NOTE
Relay is included on HMW93 transmitters only.
Additional configuration options are available when relay functionality is
configured via software. The configuration is done using the RMODE
and RSEL commands. For examples, see section Relay Configuration
Examples on page 56.
Set Relay Mode
Use the RMODE command to show or set the relay activation mode.
RMODE [mode]<cr>
where
mode =
Activation mode of the relay. Options are:
None (relay is disabled, always open)
Lo_active (relay closed when below setpoint)
Hi_active (relay closed when above setpoint)
Fault (relay closed when transmitter in error state)
Not_fault (relay closed when transmitter not in error state)
Example (set relay to Lo_active mode):
>pass 9000
>rmode lo_active
Relay mode
: Lo_Active
54 ___________________________________________________________________ M211399EN-H
Chapter 4 _________________________________________________________________ Operation
Set Relay Parameter and Limits
Use the RSEL command to show or set the parameter that controls the
relay, and the limits that are applied.
RSEL [parameter lo_value hi_value]<cr>
where
parameter = Parameter that controls the relay. Available parameters
are:
RH
relative humidity
T
temperature
Tdf
dew/frost point temperature
Td
dew point temperature
Tw
wetbulb temperature
h
enthalpy
x
mixing ratio
a
absolute humidity
dTd
dew/frost point depression
Disabled no parameter, relay disabled
lo_value = Low limit of relay activation.
hi_value = High limit of relay activation.
Example (show current settings):
>pass 9000
>rsel
Relay configuration
: RH (88.00 ... 92.00 %)
Example (set temperature as relay parameter, low limit 25, high limit 30):
>rsel t 25 30
Relay configuration
: T (25.00 ... 30.00 'C)
VAISALA ________________________________________________________________________ 55
User's Guide _______________________________________________________________________
Relay Configuration Examples
RSEL RH 60 70
RMODE Hi_Active
100
Relay closed
Relay open
Relative Humidity (%)
90
80
70
60
50
40
30
20
10
0
Time
Figure 30
1111-119
Relay Hi_Active in Custom Mode (HMW93)
RSEL RH 60 70
RMODE Lo_Active
100
Relay closed
Relay open
Relative Humidity (%)
90
80
70
60
50
40
30
20
10
0
Time
Figure 31
1111-120
Relay Lo_active in Custom Mode (HMW93)
56 ___________________________________________________________________ M211399EN-H
Chapter 4 _________________________________________________________________ Operation
Calibration and Adjustment Commands
The following sections describe the calibration and adjustment
commands of the HMW90 series. For general information on performing
calibration and adjustment on the serial line, see section Adjustment
Using a Computer on page 68.
The 1-point humidity adjustment of the HMW90 series adjusts both
offset and gain, depending on the adjustment condition. In a dry
condition (for example, 11 %RH), offset is adjusted more than gain.
NOTE
The 1-point humidity adjustment requires that the target condition is at
least 50% of the currently measured value. This prevents the user from
making excessive corrections that are very unlikely to be needed.
However, if you feel that you may have done an incorrect adjustment,
you can easily remove the adjustment using the CRH RESET command.
NOTE
You must enable advanced serial commands using the PASS 9000
command before using the calibration and adjustment commands.
Adjust Humidity Measurement
Use the CRH command to perform a humidity adjustment of the relative
humidity (RH) measurement. You can do a 1-point or a 2-point
adjustment, or clear the adjustment information from the HTM10
module. Note that the factory adjustment will remain intact when user
adjustment is cleared.
NOTE
The CRH command does nothing on the TMW92 and TMW93
transmitters.
Show Current RH Adjustment
CRH<cr>
Example (showing default offset and gain):
>pass 9000
>crh
RH Gain
RH Offset
: 1.000
: 0.000
VAISALA ________________________________________________________________________ 57
User's Guide _______________________________________________________________________
1-point Adjustment of RH Measurement
The 1-point adjustment adjusts both offset and gain depending on the
adjustment condition. The same type of adjustment is done when turning
the RH trimmer.
Place the transmitter in the reference condition and allow it to stabilize
before entering the adjustment.
CRH [ONE] [x]<cr>
where
x =
The reference humidity condition (%RH) that the transmitter
should be showing.
Example:
>pass 9000
>crh one 11
OK
2-point Adjustment of RH Measurement
CRH [LO | HI] [x]<cr>
where
LO = Adjustment point at the dry end (low RH).
HI = Adjustment point at the wet end (high RH). The difference
between the two points should be at least 30 %RH.
x = The reference humidity condition (%RH) that the transmitter
should be showing.
The 2-point correction is not applied immediately – you must use the
CRH SAVE command to store your adjustment to the HTM10 module.
If you have entered user adjustments using the CRH command but do not
wish to commit them, use the CRH CANCEL command.
CRH [SAVE | CANCEL]<cr>
Example (two point adjustment, low point 11 %RH and high point 75
%RH):
>pass 9000
>crh lo 11
OK
>crh hi 75
OK
>crh save
OK
58 ___________________________________________________________________ M211399EN-H
Chapter 4 _________________________________________________________________ Operation
Clear User Adjustment of RH Measurement
CRH [RESET]<cr>
Example:
>pass 9000
>crh reset
OK
Adjust Temperature Measurement
Use the CT command to perform an adjustment of the temperature
measurement. You can do a 1-point adjustment or clear the adjustment
information from the HTM10 module. Note that the factory adjustment
will remain intact when user adjustment is cleared.
Show Current T Adjustment
CT<cr>
Example (showing default temperature offset):
>pass 9000
>ct
Temperature offset
: 0.000
1-point Adjustment of T Measurement
Place the transmitter in the reference condition and allow it to stabilize
before entering the adjustment.
CT [x]<cr>
where
x =
The reference temperature (in degrees Celsius) that the
transmitter should be showing.
Example:
>pass 9000
>ct 23
OK
VAISALA ________________________________________________________________________ 59
User's Guide _______________________________________________________________________
Clear User Adjustment of T Measurement
CT [RESET]<cr>
Example:
>pass 9000
>ct reset
OK
Enter Calibration and Adjustment
Information
Use the CTEXT command to store a text string that describes the
calibration and/or adjustment. To enter a text string with spaces, enclose
the string in quotation marks. Use the CDATE to store the date.
CTEXT [text]<cr>
CDATE [YYYY-MM-DD]<cr>
Examples:
>pass 9000
>ctext “adjusted rhlab/Tech021”
“adjusted rhlab/Tech021”
>cdate 2011-12-08
Calibration date
: 2011-12-08
60 ___________________________________________________________________ M211399EN-H
Chapter 4 _________________________________________________________________ Operation
Testing Commands
Test Analog Outputs
Use the ATEST command to force the analog outputs to the given value.
Before using the ATEST command it is useful to give the AMODE
command to verify the output mode of the channels.
ATEST [channel value]<cr>
where
channel =
value
=
Number of analog output channel to be tested (1 or 2).
Voltage or current value to set the channel to. Unit is
determined according to output type (V or mA).
The value you set may not be achievable by the transmitter. Voltage
output can go as high as 12 V, and current output can go up to 25 mA.
Also, current output cannot go down to zero.
After testing the output, give the ATEST command with the channel
number to exit the test mode.
Example (verify output mode of the channels):
>pass 9000
>amode
Aout 1 range ( V)
Aout 2 range ( V)
: 0.00 ... 5.00 (error: 5.50)
: 0.00 ... 5.00 (error: 5.50)
Example (set channel 1 to 6 V):
>atest 1 6
Aout1 ( V)
: 6.000
Example (end test mode for channel 1, resume normal output):
>atest 1
Aout1 test mode disabled.
VAISALA ________________________________________________________________________ 61
User's Guide _______________________________________________________________________
Test Relay Operation
Use the command RTEST to test the operation of the relay. Issue the
command without parameters to end the relay test.
RTEST [state]<cr>
where
state
=
State of the relay contacts. Options are:
open (open the relay contacts)
closed (close the relay contacts)
Example (close relay contacts):
>pass 9000
>rtest closed
Relay test mode
: Closed
Example (exit relay test mode, resume normal operation):
>rtest
Relay test mode
: Canceled
Other Commands
Enable Advanced Serial Commands
Use the PASS command to enable the advanced serial commands.
PASS [passcode]<cr>
where
passcode = Passcode to enable advanced commands is 9000.
Example:
>pass 9000
Reset Transmitter
Use the RESET command to reset the transmitter.
RESET<cr>
Example:
>reset
Resetting
HMW93 / 1.00.00.0000 / XM90
>
62 ___________________________________________________________________ M211399EN-H
Chapter 4 _________________________________________________________________ Operation
Set BACnet Parameters
Use the BACNET command to show or set some of the transmitter’s
BACnet parameters. You can also use the BACNET command to
reinitialize the BACnet stack of the transmitter without having to reset or
power cycle the transmitter.
BACNET [parameter_name [parameter_value]] [reinit]<cr>
where
parameter_name = Name of the BACnet parameter to change.
Available parameters are:
Instance: BACnet instance number. Unsigned value
in range 0 ... 4194302.
Name: BACnet Object_Name shown in the Device
object. String value, no spaces.
Description: BACnet Description shown in the
Device object. String value, no spaces.
Location: BACnet Location shown in the Device
object. String value, no spaces.
Password: Password used in ReinitializeDevice
service. String value, no spaces.
MAX_MASTER: Max_Master parameter in Device
object. Unsigned value, range 1 ... 127.
parameter_value = New value of the parameter. See descriptions above
for allowed values.
reinit
= Reinitializes the BACnet stack. Must be given as the
only argument for the BACNET command.
Example (show BACnet parameters):
>bacnet
Instance
Name
Location
Description
Password
MAX_MASTER
COV_Interval
Autobaud_Interval
:
:
:
:
:
:
:
:
6 (00000006h)
HMW95_H2330001
Location
Description
1234
127 (007Fh)
0
10
VAISALA ________________________________________________________________________ 63
User's Guide _______________________________________________________________________
Example (change description to main_hall, and reinitialize the BACnet
stack):
>bacnet description main_hall
Description
: main_hall
>bacnet reinit
Reinitialize signaled to BACnet stack.
64 ___________________________________________________________________ M211399EN-H
Chapter 5 _______________________________________________________________ Maintenance
CHAPTER 5
MAINTENANCE
This chapter provides information that is needed in basic maintenance of
the HMW90 series.
Periodic Maintenance
Cleaning
The body of the transmitter can be cleaned by wiping with a moistened
lint-free cloth. Do not use cleaning agents or solvents, or blow
pressurized air into the transmitter housing.
Do not attempt to clean contaminated HTM10 modules and HUMICAP®
sensors. Dirty modules should always be replaced with new calibrated
modules.
Calibration and Adjustment
HMW90 series transmitters are fully calibrated as shipped from factory.
HMW90 series transmitters have a display that makes it easy to compare
the measured readings against any portable calibration reference. Note
that depending on the ordered configuration, the display may be hidden
under the sliding cover.
For adjustment of the measurement, you have the following options:
- 1-point adjustment using the trimmers under the sliding cover. See
section Adjustment Using Display and Trimmers on page 66.
- 1-point or 2-point adjustment using the service port. See the following
sections:
- Adjustment Using an HM70 on page 67.
- Adjustment Using a Computer on page 68.
If adjustment is not enough to restore the measurement accuracy of the
transmitter, you can also replace the measurement module. See section
Replacing the Measurement Module on page 69.
VAISALA ________________________________________________________________________ 65
User's Guide _______________________________________________________________________
The adjustment of temperature measurement is always a simple 1-point
offset correction.
The 1-point humidity adjustment of the HMW90 series adjusts both
offset and gain, depending on the adjustment condition. In a dry
condition (for example, 11 %RH), offset is adjusted more than gain.
NOTE
The 1-point humidity adjustment requires that the target condition is at
least 50% of the currently measured value. This prevents the user from
making excessive corrections that are very unlikely to be needed.
However, if you feel that you may have done an incorrect adjustment,
you can easily remove the adjustment using the HM70 or the
CRH RESET command on the serial line.
NOTE
Only T adjustment is available on the TMW92 and TMW93 transmitters.
Adjustment Using Display and Trimmers
CAUTION
The trimmers only turn 135 degrees each way, less than half a rotation.
Do not force the trimmer past the stopping point. If you wish to apply a
greater correction than allowed by the trimmer in a single adjustment,
simply adjust the transmitter again. Corrections applied using the
trimmers are cumulative.
NOTE
User calibration settings (adjustment by trimmers or service port) are
stored in the HTM10 module. If you replace the module, there is no need
to undo previous adjustments.
1.
To enter the adjustment screen, open the slide and rotate the
RH or T trimmer slightly during normal measurement. If the
trimmer is not centered, you see the trimmer centering screen first.
Simply turn the trimmer to the center and wait for the progress bar
to complete.
1111-075
Figure 32
Trimmer Centering Screen
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Chapter 5 _______________________________________________________________ Maintenance
2.
In the adjustment screen, turn the trimmer to set the desired
correction. To commit the change, stop turning the trimmer and
wait.
1111-076
Figure 33
3.
Trimmer Centering Screen
If you wish to apply a greater correction than allowed by the
trimmer in a single adjustment, re-enter the adjustment screen and
apply a new correction. Corrections applied using the trimmers are
cumulative.
Adjustment Using an HM70
1.
2.
3.
4.
5.
6.
7.
Connect the HMW90 series transmitter to the HM70 hand-held
meter using the connection cable (Vaisala order code 219980).
Depending on the connected devices, you may be prompted by the
HM70 meter to check the currently applied environment settings.
Check the settings when prompted.
In the Functions menu of the HM70, select Calibrate XMW9x
and press Start.
Confirm Yes. Confirm the automatic power off notification with
Ok.
Select parameter for adjustment, T or RH.
Screen shows the measured values and their difference. Press
Adjust to select the Adjustment mode.
Select the desired adjustment type using arrow buttons and press
Select:
- To same as reference: Adjusts the measurement of the HMW90
transmitter to the same reading as the reference that is connected
to the other port. When the parameter being adjusted is RH, both
offset and gain are adjusted, depending on the adjustment
condition (same as when turning the RH trimmer). This option is
not available if no reference is connected to the HM70.
- 1-point adjustment: Adjusts the measurement of the HMW90
to a reference value that you specify. When the parameter being
adjusted is RH, both offset and gain are adjusted, depending on
the adjustment condition (same as when turning the
VAISALA ________________________________________________________________________ 67
User's Guide _______________________________________________________________________
8.
RH trimmer). Follow the instructions from the HM70 when
using this option.
- 2-point adjustment: Adjusts the measurement of the HMW90
at two points to reference values that you specify. This option is
not available when adjusting temperature (T).
- Revert factory calib.: This option removes the currently
applied user adjustment from the HTM10 module. Only the
adjustment for the selected parameter is removed (RH or T).
Complete the selected adjustment by following the instructions
from the HM70.
Adjustment Using a Computer
For more detailed instructions on using the Vaisala USB cable and a
terminal application, see section Connecting With a Computer on page
37.
For a description of the serial commands, see section Calibration and
Adjustment Commands on page 57.
1.
2.
3.
Connect the HMW90 series transmitter to your computer using the
Vaisala USB cable (order code 219690).
Start a terminal application and open a new session to the service
port of the transmitter. The serial line settings are 19200, N, 8, 1.
Before changing the adjustment, issue the following commands to
see the transmitter’s current adjustment information:
pass 9000
crh
ct
ctext
cdate
4.
5.
6.
7.
Place the entire transmitter in the desired reference condition and
allow the measurement to stabilize. Follow the stabilization from
the serial line (output from the R command) or the display.
You can now use the CRH and CT commands to adjust the
transmitter’s RH and T measurement. Refer to the command
descriptions for the available options.
After performing the adjustment, verify from the serial line or the
display that the measurement has been corrected.
After completing the adjustments, you can enter a descriptive text
string in the transmitter’s memory using the CTEXT command,
and note the adjustment date using the CDATE command.
68 ___________________________________________________________________ M211399EN-H
Chapter 5 _______________________________________________________________ Maintenance
Repair Maintenance
Replacing the Measurement Module
If you cannot restore the measurement accuracy of the transmitter by
calibration and adjustment, you can replace the measurement module
inside the transmitter. The measurement module is the small separate
component board that is connected to the bottom of the component
board; see Figure 4 on page 16.
1
2
1203-034
Figure 34
HTM10 and TM10 Modules
where
1 = HTM10 module that includes a HUMICAP® sensor for humidity
measurement and a digital temperature sensor.
2 = TM10 module with a digital temperature sensor.
Replace the module in your transmitter with the same type as used
originally. Replacing a TM10 module with a HTM10 module does not
turn a TMW transmitter (temperature only) into a HMW type (humidity
and temperature) transmitter.
NOTE
User calibration settings (adjustment by trimmers or service port) are
stored in the module. If you replace the module, you do not need to undo
the previously applied correction.
CAUTION
Handle the HTM10 module carefully. When reinstalling the transmitter
body to the mounting base, avoid touching the module or the
HUMICAP® sensor.
VAISALA ________________________________________________________________________ 69
User's Guide _______________________________________________________________________
To replace the module:
1.
2.
Disconnect the transmitter body from the mounting base.
With your fingers, push apart the two plastic holders that hold the
module. Pull out the module. Keep the module straight while
pulling it out, otherwise the pins may twist in the connector and
damage it.
1112-028
Figure 35
3.
4.
5.
6.
Replacing the HTM10 Module (HMW93)
Take the new module and align the pins to the connector on the
transmitter’s component board.
Push down on the module so that the plastic holders clip into place.
Try not to tilt the module, so that the pins will meet the connector
straight on.
Reconnect the transmitter to the mounting base.
Verify that there are no errors when the transmitter starts up. If you
see the errors HTM10 01 or HTM10 02 on the screen, it is likely
that the module is not seated properly in the connector. In that case,
disconnect the transmitter body and try again.
70 ___________________________________________________________________ M211399EN-H
Chapter 6 ____________________________________________________________ Troubleshooting
CHAPTER 6
TROUBLESHOOTING
This chapter describes common problems, their probable causes and
remedies, and provides contact information for technical support.
Problem Situations
Table 11
Troubleshooting Table
Problem
Temperature reading shown by
the transmitter is too high.
Possible Causes and Solutions
1. The transmitter may be installed in an
unsuitable location, for example, near a
heat source or in sunlight. See section
Selecting Location on page 26.
2. Check that the transmitter is installed in
proper orientation, with the arrow on the
mounting base pointing up.
Relay does not seem to be
working as configured.
1. Check DIP switch settings. Is the relay
configured using DIP switches and
rotary switch, or software? Check that
the rotary switch is not between two
positions.
2. Note the effect of hysteresis in DIP
mode; see section Relay Configuration
in DIP Mode on page 21.
3. Connect to the service port using a
computer and use the STATUS
command to view the current relay
settings.
4. Use the RTEST command to test that
the relay is working properly.
Transmitter does not recognize
a valid serial command,
responds with message
1. The command may be one of the
advanced commands, and you have not
enabled them using the PASS 9000
command.
2. If you are using remote echo on the
transmitter, disable it with the
ECHO OFF command to avoid
collisions.
3. There may be an intermittent connection
problem between the transmitter and
your terminal. Issue the command again.
FAIL 1: Unknown command
VAISALA ________________________________________________________________________ 71
User's Guide _______________________________________________________________________
Error Messages
Table 12
Error Messages
Error Text
on Display
HTM10 01
HTM10 02
Error ID on
Serial Line
23
41
HTM10 04
21
HTM10 03
4
HTM10 05
22
HTM10 06
42
Internal 1
1
Internal 2
Internal 3
Internal 4
2
3
43
Possible Cause
Remedy
Communication
problem with
HTM10 module.
Problem with
humidity
measurement.
Check that the HTM10
module sits firmly in place.
Remove and reconnect.
- Check for missing or
®
damaged HUMICAP
sensor on the HTM10
module.
- Check for condensation
®
on the HUMICAP
sensor. Wait for the
sensor to dry out.
- Restart the transmitter.
- Replace the module if
unable to remove the
problem.
Internal problem
with HTM10
module.
Internal problem
with the
transmitter.
-
Restart the transmitter.
Restore the factory
settings using service
port or DIP switches if
reset does not help.
72 ___________________________________________________________________ M211399EN-H
Chapter 6 ____________________________________________________________ Troubleshooting
Viewing Error Messages on Serial Line
View Currently Active Errors
Use the ERRS command to view currently active errors on the serial
line:
ERRS<cr>
Example:
>errs
NO ERRORS
View Error Table
Use the ERRT command to view the table of possible transmitter errors.
The table includes error ID, error count since last reset, level, current
state, and error text.
Critical errors require a transmitter reset to recover. Other errors may be
recoverable if their cause is removed.
ERRT<cr>
Example:
>errt
Id:
1:
2:
3:
4:
21:
22:
23:
41:
42:
43:
N:
0:
0:
0:
0:
0:
0:
0:
0:
0:
0:
Level:State: Error text
CRITICAL:OFF: FLASH memory corrupted
CRITICAL:OFF: Parameter read (using defaults)
CRITICAL:OFF: Parameter write
CRITICAL:OFF: HTM10 03 FLASH Corrupted
ERROR:OFF: HTM10 04 RH measurement
ERROR:OFF: HTM10 05 T measurement
ERROR:OFF: HTM10 01 Continuous communication failure
WARNING:OFF: HTM10 02 Single Communication failure
WARNING:OFF: HTM10 06 Device Descriptor match
WARNING:OFF: Factory parameter memory not consistent
VAISALA ________________________________________________________________________ 73
User's Guide _______________________________________________________________________
Error State
If there are any active “critical” or “error” level errors active in the
transmitter, both analog outputs are set into a defined error level instead
of the measured result. The error level depends on the output type:
- For 0 ... 5 V output, the default error level is 5.5 V
- For 0 ... 10 V output, the default error level is 11 V
- For 4 ... 20 mA output, the default error level is 3.6 mA
If all “critical” and “error” level errors are turned off (by removing their
cause), transmitter resumes normal operation of analog outputs.
You can configure the error level using the AMODE command. See
section Set Analog Output Mode on page 46.
NOTE
You can also use the AOVER command to configure a channel to go to
the error level if the measured parameter is sufficiently far out of the
measured range. See section Set Output Clipping and Error Limit on
page 48.
74 ___________________________________________________________________ M211399EN-H
Chapter 6 ____________________________________________________________ Troubleshooting
Reverting to Factory Settings
HMW90 series transmitters, including factory-customized transmitters,
can be reverted to their original shipping configuration using the DIP
switches or the service port.
Reverting the transmitter to factory settings clears all user configuration
that has been done using the service port. User-made humidity and
temperature adjustments are also cleared from the HTM10 module. The
factory calibration will remain.
Reverting to Factory Settings Using DIP
Switches
NOTE
Factory reset functionality using DIP switches is present in transmitters
with firmware version 1.0.3 or newer. The firmware version is visible on
the transmitter startup screen.
1.
2.
3.
Disconnect the transmitter cover from the mounting base.
Make a note of the DIP switch positions before changing anything,
so you can restore the positions later.
Analog output models: Set the DIP switches as shown in Figure 36
below: move all switches up.
Digital output models: Set the DIP switches in the leftmost DIP
switch bank as shown in Figure 37 on page 76. Do not move the
switches in the other bank.
ric
et
M
nNo Td
om
st
u
C
1 2 3 4 5 6 7 8
ric RH
et
M
P
DI
HMW92/TMW92
ric
n gh
et
O Hi
M
y
y
n- d ...5V ela ela
o
N T 0 R R
om
st
u
C
1 2 3 4 5 6 7 8
f
P
ric RH 10V Of ow
DI
L
et
.
y
.
.
y
a
M
l
0 e la
R Re
HMW93/TMW93
1203-018
Figure 36
DIP Switches in Factory Reset Position
VAISALA ________________________________________________________________________ 75
User's Guide _______________________________________________________________________
Modbus
A
B
C
Parity Even
Non-Metric
ON
1 2 3 4 5 6 7 8
Baud
Rate
BACnet
Metric
Parity None
HMW95
Figure 37
4.
5.
6.
7.
1209-028
DIP Switches in Factory Reset Position (HMW95)
Reconnect the transmitter cover to the mounting base so it powers
up. Check the screen after power-up: when the DIP switches are in
factory reset position, you will see a notification text.
Disconnect the transmitter cover again.
Set the DIP switches to the positions they were before.
Reconnect the transmitter cover to the mounting base. Check the
startup screens to verify the configuration.
76 ___________________________________________________________________ M211399EN-H
Chapter 6 ____________________________________________________________ Troubleshooting
Reverting to Factory Settings Using
Service Port
Use the FRESTORE command to restore the transmitter to factory
settings.
FRESTORE<cr>
NOTE
If you are restoring the factory configuration on a factory customized
analog output model (HMW90), leave DIP number 8 to the Custom
position to avoid the custom configuration from being overwritten by the
default settings at transmitter reset. For more information about this, see
section Changing Between DIP and Custom Configuration on page 23.
NOTE
After using the FRESTORE command, reset the transmitter using the
RESET command.
Example:
>pass 9000
>frestore
Restoring HTM10 factory parameters
HTM10 factory parameters restored
Restoring HMW93 factory settings
72/72 parameters restored
OK
>reset
Resetting
HMW93 / 1.00.00.0000 / XM90
>
Technical Support
For technical questions, contact the Vaisala technical support by e-mail at
[email protected] Provide at least the following supporting
information:
-
Name and model of the product in question.
Serial number of the product.
Name and location of the installation site.
Name and contact information of a technically competent person who
can provide further information on the problem.
For Vaisala Service Center contact information, see
www.vaisala.com/servicecenters.
VAISALA ________________________________________________________________________ 77
User's Guide _______________________________________________________________________
CHAPTER 7
TECHNICAL DATA
This chapter provides the technical data of the HMW90 series
transmitters.
Specifications
Table 13
Performance
Property
Relative humidity
Measurement range
Accuracy
Temperature range +10 ... +40 °C
(+50 ... +104 °F)
0 ... 90 %RH
90 ... 100 %RH
Temperature range -5 ... +10 °C,
+40 ... + 55 °C (+23 ... +50 °F,
+104 ... +131°F)
0 ... 90 %RH
90 ... 100 %RH
Stability in typical HVAC applications
Humidity sensor
Temperature
Measurement range
Accuracy
+20 ... +30 °C (+68 ... +86 °F)
+10 ... +20 °C, +30 ... +40°C
(+50 ... +68 °F, +86 ... +104 °F)
-5 ... +10 °C, +40...+55°C
(+23 ... +50 °F, +104 ... +131 °F)
Temperature sensor
Table 14
Description / Value
0 ... 100 %RH, non-condensing
±1.7 %RH
±2.5 %RH
±3 %RH
±4 %RH
±0.5 %RH/year
®
Vaisala HUMICAP 180R
-5 ... +55 °C (+23 ... +131 ºF)
±0.2 °C (± 0.36 °F)
±0.3 °C (± 0.54 °F)
±0.5 °C (± 0.90 °F)
Digital temperature sensor
Operating Environment
Property
Operating temperature range
Storage temperature range
Electromagnetic compliance
Description / Value
-5 ... +55 °C (+23 ... +131 °F)
-30 ... +60 °C (-22 ... +140 °F)
EN61326-1, Industrial Environment
78 ___________________________________________________________________ M211399EN-H
Chapter 7 _____________________________________________________________ Technical Data
Table 15
Inputs and Outputs
Property
HMW92 and TMW92
Outputs
HMW92
TMW92
Loop resistance
Supply voltage
Isolation between output channels
HMW93 and TMW93
Outputs
HMW93
TMW93
Load resistance
Supply voltage
Max. current consumption
Relay
3-wire installation max cable
resistance
HMW95
Supply voltage
Current consumption (with
termination)
Average
Maximum
Power consumption
Output type
RS-485 end of line termination
Supported protocols
BACnet MS/TP
Operating mode
Address range, master mode
Address range, slave mode
Modbus RTU
Address range
Service port
Description / Value
2 x 4 ... 20 mA, loop powered
1 x 4 ... 20 mA, loop powered
0 ... 600 Ω
20 ... 28 VDC at 500 Ω load
10 .... 28 VDC at 0 Ω load
500 VDC
2 x 0 ... 5V, 0 ... 10 V
1 x 0 ... 5V, 0 ... 10 V
10 kΩ min.
18 ... 35 VDC
24 VAC ±20 % 50/60 Hz
12 mA
max. with relay 25 mA
1 pc (SPST, max. 50 VDC/50 VAC,
500 mA)
2.5 Ω at 24V supply
(with 10 V output, relay not used)
18 ... 35 VDC
24 VAC ±20 % 50/60 Hz
10 mA at 24 VDC
30 mA at 24 VDC
< 0.3 W
RS-485 (galvanic isolation, 1.5 kV)
Enable with jumper, 120 Ω
Selectable by DIP switch
Selectable Master/Slave
0 ... 127
128 ... 255
0 ... 247
RS-485 line
for temporary service use
VAISALA ________________________________________________________________________ 79
User's Guide _______________________________________________________________________
Table 16
Mechanics
Property
IP class
Standard housing color
Optional housing colors
(configurable models only)
Housing material
Output connector
Service port connector
Weight
Dimensions (h × w × d)
Description / Value
IP30
White (RAL9003*)
Black (RAL9005*)
ABS/PC, UL-V0 approved
Screw terminals
2
max. wire size 2 mm (AWG14)
4-pin M8
155 g
133 × 81 × 30
*RAL code is only indicative with potential small variations in color shade.
Spare Parts and Accessories
Information on spare parts, accessories, and calibration products
is available online at www.vaisala.com and store.vaisala.com.
Table 17
HMW90 Series Spare Parts and Accessories
Description
Humidity and Temperature Module
for HMW92, HMW93, HMW95,
and HMW90
Temperature Module
for TMW92, TMW93, and TMW90
Decorative cover set (10 pcs.)
Connection cable for HM70 hand-held
meter
USB cable for computer connection
Standard white sliding cover, blank
Standard white sliding cover with hole
for display
Order Code
HTM10SP
TM10SP
236285
219980
219690
DRW237354SP
DRW237339SP
80 ___________________________________________________________________ M211399EN-H
Chapter 7 _____________________________________________________________ Technical Data
Dimensions in mm
132.7
30
81
1111-061
Figure 38
HMW90 Series Dimensions
59.5
29.8
4 .4
34
33.5
9
27
47.5
5
Ø
30.5
1111-142
Figure 39
Dimensions of the Mounting Base
VAISALA ________________________________________________________________________ 81
User's Guide _______________________________________________________________________
APPENDIX A
BACNET REFERENCE
This appendix describes the BACnet protocol implementation of the
HMW90 series digital transmitters.
NOTE
For more information on BACnet, refer to addendum D of the
ANSI/ASHRAE standard 135-2001: BACnet®—A Data Communication
Protocol for Building Automation and Control Networks.
NOTE
Serial line settings such as baud rate are configured using DIP switches.
See section Configuration of Digital Output Models on page 23.
BACnet Protocol Implementation Conformance
Statement
This statement is a part of the BACnet standard and is required for its
use.
Vendor Name:
Vaisala Oyj
Product Name:
XMW90
Product Model Numbers:
HMW95
Applications Software Version:
1.0.28
Firmware Version:
1.0.0.0
BACnet Protocol Revision:
Version 1, Revision 4
BACnet Standardized Device Profile
(Annex L):
 BACnet Operator Workstation (B-OWS)
 BACnet Building Controller (B-BC)
 BACnet Advanced Application Controller (B-AAC)
 BACnet Application Specific Controller (B-ASC)
 BACnet Smart Sensor (B-SS)
 BACnet Smart Actuator (B-SA)
List of all BACnet Interoperability
Building Blocks Supported
(Annex K):
DS-RP-B, DS-RPM-B, DS-WP-B, DS-COVU-B,
DM-DDB-B, DM-DOB-B, DM-DCC-B, DM-RD-B
See also section BIBBs Supported on
page 93.
82 ___________________________________________________________________ M211399EN-H
Appendix A _________________________________________________________ BACnet Reference
Segmentation Capability
 Segmentation Requests Supported
 Segmentation Responses Supported
Standard Object Types Supported
 Analog Input
 Analog Output
 Analog Value
 Averaging
 Binary Input
 Binary Output
 Binary Value
 Calendar
 Command
 Device
 Event Enrollment
 File
 Group
 Life Safety Point
 Life Safety Zone
 Loop
 Multistate Input
 Multistate Output
 Multistate Value
 Notification Class
 Program
 Schedule
 Trend Log
Data Link Layer Options
 BACnet Internet Protocol (IP) (Annex J)
 BACnet IP (Annex J), Foreign Device
 ISO 88023, Ethernet (Clause 7)
®
 ANSI/ATA 878.1, 2.5 MB ARCNET network
(Clause 8)
 ANSI/ATA 878.1, RS485 ARCNET network (Clause 8),
baud rates: ________
 Master-Slave/Token-Passing (MS/TP) master
(Clause 9), baud rates:
9600, 19200, 38400, 57600, 76800, 115200
 MS/TP slave (Clause 9), baud rates:
9600, 19200, 38400, 57600, 76800, 115200
 Point-To-Point, EIA 232 (Clause 10),
baud rates: ________
 Point-To-Point, modem (Clause 10),
baud rates: ________
®
 LonTalk protocol (Clause 11), medium: ________
 Other:
VAISALA ________________________________________________________________________ 83
User's Guide _______________________________________________________________________
Device Address Binding
Is static device binding supported?
(required for two-way communication
between MS/TP slaves and other
devices)
Networking Options
 Yes
 No
 Router, Clause 6:
 Annex H, BACnet Tunneling Router over IP
 BACnet/IP Broadcast Management Device (BBMD)
Does the BBMD support registrations by
Foreign Devices?
 Yes
Character Sets Supported
 UTF-8 / ANSI X3.4
 No
®
®
 IBM /Microsoft DoubleByte Character Set (DBCS)
 ISO 8859-1
 ISO 10646 Universal Character Set-2 (UCS2)
 ISO 10646 (UCS-4)
 Japanese Industrial Standard (JIS) C 6226
Types of non-BACnet equipment
/network(s) supported:
None
84 ___________________________________________________________________ M211399EN-H
Appendix A _________________________________________________________ BACnet Reference
Device Object
Note the following:
- Writable means writable via BACnet.
- Max_Master and Max_Info_Frames are required in a Master device.
- UV = Configured at Vaisala factory to a unique value. See additional
information after the table.
Table 18
Device Object Properties
Property
Data type
(Application Type)
Object_Identifier
BACnetObjectIdentifier
Object_Name
Object_Type
CharacterString[50]
BACnetObjectType
(ENUMERATED)
System_Status
BACnetDeviceStatus
(ENUMERATED)
Vendor_Name
Character String
Vendor_Identifier
Unsigned16
Model_Name
CharacterString
Firmware_Revision
CharacterString
Application_Software_R CharacterString
evision
Location
Character String[50]
Description
Character String[50]
Protocol_Version
Unsigned
Protocol_Revision
Unsigned
Protocol_Services
BACnetProtocolServices
Supported (BIT STRING)
Writable
(Conforma
nce Code)
Y (R)
Value or Initial Value
Persistence
Nonvolatile
Y (R)
N (R)
02 00 00 00 (hex)
Object Type = 8,
Instance = xxxxxxx UV
"xMW9x_xxxxxxxx" UV
8 (Device Object)
N (R)
0 (Operational)
Volatile
N (R)
N (R)
N (R)
N (R)
N (R)
"Vaisala Oyj"
339
"HMW95"
X.X.X.X (BACnet interface)
X.X.X.X
Fixed
Fixed
Nonvolatile
Fixed
Fixed
Y (O)
Y (O)
N (R)
N (R)
N (R)
“Location”
“Description”
1
4
Read Property
Read Property Multiple
Write Property
Device Communication
Control
Reinitialize Device
Who-Is
Who-Has
Analog Input
Analog Value
Device
Device Object
AI2 (Relative Humidity)
AI3 (Temperature)
AI4 (Dewpoint)
AI5 (Dewpoint (Tdf))
AI6 (Dewpoint depression)
AI7 (Wet bulb temperature)
AI8 (Absolute humidity)
AI9 (Mixing ratio)
AI10 (Enthalpy)
AV1 (Pressure)
AV2 (Altitude)
Nonvolatile
Nonvolatile
Fixed
Fixed
Fixed
Protocol_Object_Types
_Supported
BACnetObjectTypesSupp N (R)
orted (BIT STRING)
Object_List
BACnetARRAY[N]of
BACnetObjectIdentifier
N (R)
Nonvolatile
Fixed
Fixed
Fixed
VAISALA ________________________________________________________________________ 85
User's Guide _______________________________________________________________________
Property
Data type
(Application Type)
Max_APDU_Length_Ac
cepted
Max_Master
Max_Info_Frames
Segmentation_Supporte
d
APDU_Timeout
APDU_Retries
Device_Address_Bindin
g
Database_Revision
Unsigned16
Unsigned16 (0..127)
Unsigned
BACnetSegmentation
(ENUMERATED)
Unsigned
Unsigned
List of
BACnetAddressBinding
Unsigned
Writable
(Conforma
nce Code)
N (R)
Value or Initial Value
Persistence
244
Fixed
Y (R/O)
N (R/O)
N (R)
127
1
3 (No segmentation)
Nonvolatile
Fixed
Fixed
N (R)
N (R)
N (R)
3000 (ms)
0
NULL
Fixed
Fixed
Fixed
N (R)
0
Volatile
Object_Identifier: Must be unique in BACnet network. As Object
Identifier is 22 bits long its value range is 0 ... 4194303. Each device is
assigned a random value in this range at Vaisala factory.
Object_Name: Must be unique in BACnet network. Default object
name contains the name and serial number of the device. For example:
- Device model is HMW95, with serial number G1234567.
- Object_Name is "HMW95_G1234567".
System_Status: System status can be OPERATIONAL (0) or
NON-OPERATIONAL (4). Device goes to NON-OPERATIONAL state
in case of fatal error.
Protocol_Services: Who-Is, I-Am, Who-Has, I-Have and
UnconfirmedCOVNotification services are available only when XMW90
is MS/TP master. Reinitialize Device service must be password
protected. According to BACnet protocol, password is character string
having max 20 characters. Default password is "1234". Password can be
changed through the service port by using the BACNET command. See
section Set BACnet Parameters on page 63.
Database_revision: This is changed during operation according to
section 12.11.35 of ANSI/ASHRAE standard 135-2008.
86 ___________________________________________________________________ M211399EN-H
Appendix A _________________________________________________________ BACnet Reference
Relative Humidity Object
This Analog Input Object exists only in the HMW95 model.
Table 19
Relative Humidity Object Properties
Property
Data type
(Application Type)
Object_Identifier
BACnetObjectIdentifier
Object_Name
Object_Type
CharacterString
BACnetObjectType
(ENUMERATED)
Real
Present_Value
Description
Units
Writable
(Conformance
Code)
No (R)
No (R)
No (R)
Yes
(When Oos) (R)
No (O)
No (R)
Out_of_Service
COV_Increment
CharacterString
BACnetEngineeringUnits
(ENUMERATED)
BACnet Status Flags (BIT
STRING)
BACnet Reliability
(ENUMERATED)
BACnetEventState
(ENUMERATED)
BOOLEAN
Real
Min_Pres_Value
Real
No (O)
Max_Pres_Value
Real
No (O)
Status_Flags
Reliability
Event State
Table 20
FAULT
OVERRIDDEN
OUT_OF_SERVICE
State
FALSE
TRUE
FALSE
TRUE
FALSE
FALSE
TRUE
State
0 NORMAL
1 FAULT
00 00 00 02 (hex)
Object Type = 0,
Instance = 2
"RH"
0 (Analog Input)
Nonvolatile
0.0
Volatile
"Relative Humidity"
29 (percent-relativehumidity)
0 (FAULT == FALSE)
Nonvolatile
Nonvolatile
0 (NO FAULT
DETECTED)
0 (NORMAL)
Volatile
0 (FALSE)
NaN (COV reporting
disabled)
0.0 (same as limit for
UNDER_RANGE)
100 (same as limit for
OVER_RANGE)
Volatile
Nonvolatile
Nonvolatile
Fixed
Volatile
Volatile
Nonvolatile
Nonvolatile
Cause
Event State equals 0 (NORMAL)
Event State not 0
Reliability equals 0 (NO FAULT DETECTED)
Reliability not 0
Always FALSE
Present Value may NOT be written via BACnet
Present Value may be written via BACnet
Reliability
State
0 NO_FAULT_DETECTED
1 NO_SENSOR
2 OVER_RANGE
3 UNDER_RANGE
7 UNRELIABLE_OTHER
Table 22
Yes (R)
Yes (O)
Persistence
Status Flags
Flag
IN_ALARM
Table 21
Yes (when OoS)
(R)
Yes (when OoS)
(O)
No (R)
Value or Initial Value
Cause
No contact to measurement module
RH over 100%
RH under 0%
Other measurement error
Event State
Cause
Reliability equals 0 (NO FAULT DETECTED)
Reliability not 0
VAISALA ________________________________________________________________________ 87
User's Guide _______________________________________________________________________
Calculated Humidity Objects
These Analog Input Objects exist only in the HMW95 model.
Table 23
Calculated Humidity Objects
Instance
4
5
6
7
8
Name
"Td"
"Tdf"
"dTd"
"Tw"
"a"
Description
"Dewpoint"
"Dewpoint"
"Dewpoint depression"
"Wet bulb temperature"
"Absolute humidity"
9
"x"
"Mixing ratio"
10
"h"
"Enthalpy"
Table 24
Calculated Humidity Object Properties
Property
Data type
(Application Type)
Object_Identifier
BACnetObjectIdentifier
Object_Name
Object_Type
CharacterString
BACnetObjectType
(ENUMERATED)
Real
Present_Value
Description
Units
Status_Flags
Reliability
Event State
Out_of_Service
COV_Increment
Table 25
Unit
62/64 (ºC/ ºF)
62/64 (ºC/ ºF)
121/120 (ΔºK/ ΔºF)
62/64 (ºC/ ºF)
217/2000 grams-per-cubic-meter / grains-per-cubic-foot
(Vaisala defined unit)
28/2001 grams-of-water-per-kilogram-dry-air / grains-ofwater-per-pound (Vaisala defined unit)
149/24 kilojoules-per-kilogram-dry-air / btus-per-pound-ofdry-air
Writable
(Conformance
Code)
No (R)
Persistence
00 00 00 xx (hex)
Object Type = 0,
Instance = x
See Table 23 above.
See Table 23 above.
0 (Analog Input)
Nonvolatile
Yes
(When Oos) (R)
No (O)
No (R)
0.0
Volatile
See table above
See table above
Nonvolatile
Nonvolatile
Yes (when OoS)
(R)
Yes (when OoS)
(O)
No (R)
0 (FAULT == FALSE)
Volatile
0 (NORMAL)
Volatile
Yes (R)
Yes (O)
0 (FALSE)
NaN (COV reporting
disabled)
Volatile
Nonvolatile
No (R)
No (R)
CharacterString
BACnetEngineeringUnits
(ENUMERATED)
BACnet Status Flags (BIT
STRING)
BACnet Reliability
(ENUMERATED)
BACnetEventState
(ENUMERATED)
BOOLEAN
Real
Value or Initial Value
Nonvolatile
Fixed
0 (NO FAULT DETECTED) Volatile
Status Flags
Flag
IN_ALARM
FAULT
OVERRIDDEN
OUT_OF_SERVICE
State
FALSE
TRUE
FALSE
TRUE
FALSE
FALSE
TRUE
Cause
Event State equals 0 (NORMAL)
Event State not 0
Reliability equals 0 (NO FAULT DETECTED)
Reliability not 0
Always FALSE
Present Value may NOT be written via BACnet
Present Value may be written via BACnet
88 ___________________________________________________________________ M211399EN-H
Appendix A _________________________________________________________ BACnet Reference
Table 26
Reliability
State
0 NO_FAULT_DETECTED
1 NO_SENSOR
2 OVER_RANGE
3 UNDER_RANGE
7 UNRELIABLE_OTHER
Table 27
State
0 NORMAL
1 FAULT
Cause
No contact to measurement module
RH over 100%
RH under 0%
Other measurement error
Event State
Cause
Reliability equals 0 (NO FAULT DETECTED)
Reliability not 0
VAISALA ________________________________________________________________________ 89
User's Guide _______________________________________________________________________
Temperature Object
Table 28
Temperature Object Properties
Property
Data type
(Application Type)
Object_Identifier
BACnetObjectIdentifier
Object_Name
Object_Type
CharacterString
BACnetObjectType
(ENUMERATED)
Real
Present_Value
Writable
(Conformance
Code)
No (R)
No (R)
No (R)
Yes
(When Oos) (R)
No (O)
Yes (R)
Description
Units
CharacterString
BACnetEngineeringUnits
(ENUMERATED)
Status_Flags
Yes (when OoS)
(R)
Yes (when OoS)
(O)
No (R)
Out_of_Service
COV_Increment
BACnet Status Flags (BIT
STRING)
BACnet Reliability
(ENUMERATED)
BACnetEventState
(ENUMERATED)
BOOLEAN
Real
Min_Pres_Value
Real
No (O)
Max_Pres_Value
Real
No (O)
Reliability
Event State
Table 29
FAULT
OVERRIDDEN
OUT_OF_SERVICE
State
FALSE
TRUE
FALSE
TRUE
FALSE
FALSE
TRUE
State
0 NORMAL
1 FAULT
00 00 00 03 (hex)
Object Type = 0,
Instance = 3
"T"
0 (Analog Input)
Nonvolatile
0.0
Volatile
"Temperature"
62 (degrees-Celsius)
Possible units are
C (62) or F (64).
0 (FAULT == FALSE)
Nonvolatile
Nonvolatile
0 (NO FAULT
DETECTED)
0 (NORMAL)
Volatile
0 (FALSE)
NaN (COV reporting
disabled)
-40.0 (same as limit for
UNDER_RANGE)
+80.0 (same as limit for
OVER_RANGE)
Volatile
Nonvolatile
Nonvolatile
Fixed
Volatile
Volatile
Nonvolatile
Nonvolatile
Cause
Event State equals 0 (NORMAL)
Event State not 0
Reliability equals 0 (NO FAULT DETECTED)
Reliability not 0
Always FALSE
Present Value may NOT be written via BACnet
Present Value may be written via BACnet
Reliability
State
0 NO_FAULT_DETECTED
1 NO_SENSOR
2 OVER_RANGE
3 UNDER_RANGE
7 UNRELIABLE_OTHER
Table 31
Persistence
Status Flags
Flag
IN_ALARM
Table 30
Yes (R)
Yes (O)
Value or Initial Value
Cause
No contact to measurement module
T over +80 °C
T under -40 °C
Other measurement error
Event State
Cause
Reliability equals 0 (NO FAULT DETECTED)
Reliability not 0
90 ___________________________________________________________________ M211399EN-H
Appendix A _________________________________________________________ BACnet Reference
Operation Pressure Object
Set current atmospheric pressure to improve the calculation accuracy of
pressure dependent humidity parameters.
NOTE
Table 32
Pressure and Altitude objects are linked together. If Present Value in one
object is changed, Present Value in another object is changed
accordingly.
Operation Pressure Object Properties
Property
Object Identifier
Data type
BACnet Object Identifier
Writable
No
Object Name
Object Type
Present Value
Description
Units
Status Flags
Event State
Character String
BACnet Object Type
Real
Character String
BACnet Engineering Units
BACnet Status Flags
BACnet Event State
No
No
Yes
No
No
No
No
Out of Service
BOOLEAN
No
Table 33
Value or Initial Value
00 80 00 01 (hex)
Object Type = 2,
Instance = 1
"OPER P"
2 (Analog Value)
1013.25
"Operation Pressure"
133 (hectopascals)
0 (FAULT == FALSE)
0 (NORMAL,
does not change)
0 (FALSE)
Status Flags
Flag
IN_ALARM
FAULT
OVERRIDDEN
OUT_OF_SERVICE
State
FALSE
FALSE
FALSE
FALSE
Cause
Always FALSE
Always FALSE
Always FALSE
Always FALSE
VAISALA ________________________________________________________________________ 91
User's Guide _______________________________________________________________________
Operation Altitude Object
Set current atmospheric pressure to improve the calculation accuracy of
pressure dependent humidity parameters.
NOTE
Table 34
Pressure and Altitude objects are linked together. If Present Value in one
object is changed, Present Value in another object is changed
accordingly.
Operation Altitude Object Parameters
Property
Object Identifier
Data type
BACnet Object Identifier
Writable
No
Object Name
Object Type
Present Value
Description
Units
Status Flags
Event State
Character String
BACnet Object Type
Real
Character String
BACnet Engineering Units
BACnet Status Flags
BACnet Event State
No
No
Yes
No
Yes
No
No
Out of Service
BOOLEAN
No
Table 35
Value or Initial Value
00 80 00 02 (hex)
Object Type = 2,
Instance = 2
"OPER Altitude"
2 (Analog Value)
0.0
"Operating Altitude"
31 (meters) or 33 (feet)
0 (FAULT == FALSE)
0 (NORMAL, does not
change)
0 (FALSE)
Status Flags
Flag
IN_ALARM
FAULT
OVERRIDDEN
OUT_OF_SERVICE
State
FALSE
FALSE
FALSE
FALSE
Cause
Always FALSE
Always FALSE
Always FALSE
Always FALSE
92 ___________________________________________________________________ M211399EN-H
Appendix A _________________________________________________________ BACnet Reference
BIBBs Supported
Table 36 below lists all the BIBBs which, per ANSI/ASHRAE Standard 135-2008,
could be supported by a BACnet Smart Sensor (B-ASC). The checked BIBBs are
supported by the device.
Table 36
BACnet Smart Sensor BIBBs Support
Application Service (B-SS)
Data Sharing - Read Property - A
Data Sharing - Read Property - B
Data Sharing - Read Property Multiple - A
Data Sharing - Read Property Multiple - B
Data Sharing - Write Property - A
Data Sharing - Write Property - B
Data Sharing - Write Property Multiple - B
Data Sharing - COV - Unsolicited - A
Data Sharing - COV - Unsolicited - B
Alarm and Event - Notification Internal - B
Alarm and Event - ACK - B
Alarm and Event - Information - B
Alarm and Event - Enrollment Summary - B
Scheduling - External - B
Trending - Viewing and Modifying Trends Internal - B
Trending - Automated Trend Retrieval - B
Device Management - Dynamic Device Binding - A
Device Management - Dynamic Device Binding - B
Device Management - Dynamic Object Binding - A
Device Management - Dynamic Object Binding - B
Device Management - Device Communication Control - B
Device Management - Time Synchronization - B
Device Management - UTC Time Synchronization - B
Device Management - Reinitialize Device - B
Device Management - Backup and Restore - B
Network Management - Connection Establishment - A
Designation
DS-RP-A
DS-RP-B
DS-RPM-A
DS-RPM-B
DS-WP-A
DS-WP-B
DS-WPM-B
DS-COVU-A
DS-COVU-B
AE-N-I-B
AE-ACK-B
AE-INFO-B
AE-ESUM-B
SCHED-E-B
T-VMT-I-B
T-ATR-B
DM-DDB-A
DM-DDB-B
DM-DOB-A
DM-DOB-B
DM-DCC-B
DM-TS-B
DM-UTC-B
DM-RD-B
DM-BR-B
NM-CE-A
Supported


























VAISALA ________________________________________________________________________ 93
User's Guide _______________________________________________________________________
Application Services Supported
Table 37 below lists all the BACnet standard application services. The checked
services are supported by the device.
Table 37
BACnet Standard Application Services Support
Application Service
AcknowledgeAlarm
AddListElement
AtomicReadFile
AtomicWriteFile
ConfirmedCOVNotification
ConfirmedEventNotification
ConfirmedPrivateTransfer
ConfirmedTextMessage
CreateObject
DeleteObject
DeviceCommunicationControl
Disconnect-Connection-To-Network
Establish-Connection-To-Network
GetAlarmSummary
GetEnrollmentSummary
GetEventInformation
I-Am
I-Am-Router-To-Network
I-Could-Be-Router-To-Network
I-Have
Initialize-Routing-Table
Initialize-Routing-Table-Ack
LifeSafetyOperation
ReadProperty
ReadPropertyConditional
ReadPropertyMultiple
ReadRange
ReinitializeDevice
RemoveListElement
SubscribeCOV
SubscribeCOVProperty
TimeSynchronization
UnconfirmedCOVNotification
UnconfirmedEventNotification
UnconfirmedPrivateTransfer
UnconfirmedTextMessage
UTCTimeSynchronization
VT-Close
VT-Data
VT-Open
Who-Has
Who-Is
Who-Is-Router-To-Network
WriteProperty
WritePropertyMultiple
Initiates Requests













































Executes Requests













































94 ___________________________________________________________________ M211399EN-H
Appendix B _________________________________________________________ Modbus Reference
APPENDIX B
MODBUS REFERENCE
This appendix describes the Modbus protocol implementation of the
HMW90 series digital transmitters.
NOTE
For more information on Modbus protocol, refer to the Specification and
Implementation Guide for Modbus Over Serial Line.
NOTE
Serial line settings such as baud rate are configured using DIP switches.
See section Configuration of Digital Output Models on page 23.
Table 38
Modbus Functions Supported by HMW90
Function Code
03 (0x03)
04 (0x04)
06 (0x06)
16 (0x10)
43 / 14 (0x2B / 0x0E)
Table 39
Name
Read Holding Registers
Read Input Register
Write Single Register
Write Multiple Registers
Read Device Identification
HMW90 Modbus Measurement Data Registers
Name Metric float Metric
integer
RH
0003…0004 0258 (×0.01)
T
0005…0006 0259 (×0.01)
Td
0007…0008 0260 (×0.01)
Tdf
0009…0010 0261 (×0.01)
dTd
0011…0012 0262 (×0.01)
Tw
0013…0014 0263 (×0.01)
a
0015…0016 0264 (×0.01)
x
0017…0018 0265 (×0.01)
h
0019…0020 0266 (×0.01)
Metric
unit
%RH
°C
°C
°C
°C
°C
g/m3
g/kg
kJ/kg
Non-metric
float
6403…0004
6405…0006
6407…0008
6409…0010
6411…0012
6413…0014
6415…0016
6417…0018
6419…0020
Non-metric
integer
6658 (×0.01)
6659 (×0.01)
6660 (×0.01)
6661 (×0.01)
6662 (×0.01)
6663 (×0.01)
6664 (×0.01)
6665 (×0.01)
6666 (×0.01)
Non-metric
unit
%RH
°F
°F
°F
°F
°F
gr/ft3
gr/lb
btu/lb
Values read from the integer registers must be multiplied with the
provided multiplier to get the actual value. All integer values are signed.
VAISALA ________________________________________________________________________ 95
User's Guide _______________________________________________________________________
Available measurements depend on the transmitter model. Values may be
unavailable also in case of device failure. Read status registers or
exception status outputs to check for failures. Accessing unavailable
(unsupported or temporarily missing) measurement data does not
generate an exception. “Unavailable” value (a quiet NaN for floating
point data or 0x8000 for integer data) is returned instead. An exception is
generated only for any access outside the HMW90 registers.
A “quiet NaN” value is returned for unavailable values. Writing any NaN
or infinite value is silently ignored.
NOTE
A complete 32-bit floating point value should be read and written in a
single Modbus transaction.
Table 40
HMW90 Modbus Status Registers (Read-only)
Name
Error code (bits 15…0)
Table 41
Bit
0
1
2
3
4
5
6
7
8
9
Metric float
Pressure
Elevation
0777…0779
0779…0780
NOTE
Description
0 = no errors
HMW90 Modbus Error Code Bits
Description
Any critical error is active. Requires transmitter restart or maintenance.
Any error is active. May be recoverable.
Internal error (Flash).
Module communication or compatibility error.
HTM10 module error.
Temperature measurement error.
Humidity measurement error.
Reserved.
Reserved.
Miscellaneous error.
Table 42
Name
Address
0513,6913
Metric
integer
1029 (×1)
1030 (×1)
HMW90 Modbus Configuration Parameter Registers
Metric unit &
valid range
700…1100 hPa
-700...2300 m
Non-metric
float
7177…7179
7179…7180
Non-metric
integer
7429 (×1)
7430 (×1)
Non-metric unit &
valid range
700 … 1100 hPa
-2300 … 10000 ft
Elevation is linked to pressure according to the following equation:
p = 101325 (1 - 2.25577 10-5 h)5.25588
where p is pressure in Pa and h is altitude above sea level in m. This
means that changing altitude will also change pressure and vice versa.
96 ___________________________________________________________________ M211399EN-H
Appendix B _________________________________________________________ Modbus Reference
Table 43
HMW90 Modbus Device Identification
Object Id
0x00
0x01
0x02
0x03
0x04
0x80
0x81
Object Name
VendorName
ProductCode
MajorMinorVersion
VendorUrl
ProductName
SerialNumber
CalibrationDate
0x82
CalibrationText
Table 44
Code
01
02
03
Description
“Vaisala”
Transmitter model (for example, “HMW95”)
Software version (for example, “1.0.0”)
“http://www.vaisala.com/”
HMW90
Serial number (e.g. “H0810040”)
Date of the last calibration (for example,
“2014-09-11”, empty if not available)
Information text of the last calibration
(empty if not available)
HMW90 Modbus Exception Responses
Name
ILLEGAL FUNCTION
ILLEGAL DATA ADDRESS
ILLEGAL DATA VALUE
Reason
Unsupported function code
Address out of valid ranges
Otherwise invalid request
VAISALA ________________________________________________________________________ 97
www.vaisala.com
*M211399EN*
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