HMW90 Series User's Guide in English
USER'S GUIDE
Vaisala HUMICAP® Humidity and
Temperature Transmitters
HMW90 Series
M211399EN-G
PUBLISHED BY
Vaisala Oyj
P.O. Box 26
FI-00421 Helsinki
Finland
Phone (int.): +358 9 8949 1
Fax:
Visit our Internet pages at www.vaisala.com
.
+358 9 8949 2227
© Vaisala 2015
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.
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
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
PRODUCT OVERVIEW ................................................................................ 11
Introduction to HMW90 Series .............................................. 11
HMW90 Series Transmitters .................................................. 12
Output Parameters Explained ............................................... 13
Transmitter Parts .................................................................... 14
Decorative Cover Option ....................................................... 18
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
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Connecting a Common AC Power Supply to Several
Transmitters ......................................................................... 33
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
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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
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
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
Specifications ......................................................................... 78
Spare Parts and Accessories ................................................ 80
Dimensions in mm ................................................................. 81
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
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BIBBs Supported .................................................................... 93
Application Services Supported ........................................... 94
MODBUS REFERENCE ............................................................................... 95
4 ____________________________________________________________________ M211399EN-G
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List of Figures
Figure 1 HMW90 Series Transmitters .................................................... 11
Figure 2 Transmitter Parts - Outside ...................................................... 14
Figure 3 Opening the Transmitter........................................................... 15
Figure 4 Transmitter Parts – Inside (Analog Output Models) ................. 16
Figure 5 Transmitter Parts – Inside (Digital Output Models) .................. 17
Figure 6 Decorative Cover ...................................................................... 18
Figure 7 DIP Switch Settings of Analog Output Models ......................... 20
Figure 8 Relay High in DIP Mode (HMW93) .......................................... 22
Figure 9 Relay Low in DIP Mode (HMW93) ........................................... 22
Figure 10 DIP Switch Settings of Digital Output Models .......................... 24
Figure 11 Example of Transmitter Addressing ......................................... 25
Figure 12 Selecting Transmitter Location ................................................. 26
Figure 13 Installing the Mounting Base .................................................... 27
Figure 14 Wiring from Behind (Recommended) ....................................... 28
Figure 15 Wiring from Above .................................................................... 28
Figure 16 Wiring HMW92 ......................................................................... 29
Figure 17 Three-Wire Wiring for HMW92 ................................................. 29
Figure 18 Wiring HMW93 ......................................................................... 30
Figure 19 Three-Wire Wiring for HMW93 ................................................. 30
Figure 20 Wiring TMW92 .......................................................................... 31
Figure 21 Wiring TMW93 .......................................................................... 31
Figure 22 Three-Wire Wiring for TMW93 ................................................. 31
Figure 23 Wiring HMW95 ......................................................................... 32
Figure 24 Several Transmitters on Same RS-485 Line............................ 32
Figure 25 Connecting a Common AC Power Supply ............................... 33
Figure 26 HMW93 Startup Screens.......................................................... 34
Figure 27 HMW93 Measurement Screen – Normal Operation ................ 35
Figure 28 HMW93 Measurement Screen – Problem With Measurement 35
Figure 29 PuTTY Terminal Application..................................................... 39
Figure 30 Relay Hi_Active in Custom Mode (HMW93) ............................ 56
Figure 31 Relay Lo_active in Custom Mode (HMW93) ............................ 56
Figure 32 Trimmer Centering Screen ....................................................... 66
Figure 33 Trimmer Centering Screen ....................................................... 67
Figure 34 HTM10 and TM10 Modules ...................................................... 69
Figure 35 Replacing the HTM10 Module (HMW93) ................................. 70
Figure 36 DIP Switches in Factory Reset Position ................................... 75
Figure 37 DIP Switches in Factory Reset Position (HMW95) .................. 76
Figure 38 HMW90 Series Dimensions ..................................................... 81
Figure 39 Dimensions of the Mounting Base ........................................... 81
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List of Tables
Table 1 Manual Revisions ....................................................................... 8
Table 2 Related Manuals ......................................................................... 8
Table 3 HMW90 Series Transmitters .................................................... 12
Table 4 Parameters Supported by HMW90 Series ............................... 13
Table 5 Rotary Switch and Relay Setpoint ............................................ 21
Table 6 Serial Interface Settings ........................................................... 38
Table 7 Basic Serial Commands ........................................................... 40
Table 8 Advanced Serial Commands .................................................... 40
Table 9 FORM Command Parameters .................................................. 53
Table 10 FORM Command Modifiers ...................................................... 53
Table 11 Troubleshooting Table .............................................................. 71
Table 12 Error Messages ........................................................................ 72
Table 13 Performance ............................................................................. 78
Table 14 Operating Environment ............................................................. 78
Table 15 Inputs and Outputs ................................................................... 79
Table 16 Mechanics ................................................................................. 80
Table 17 HMW90 Series Spare Parts and Accessories .......................... 80
Table 18 Device Object Properties .......................................................... 85
Table 19 Relative Humidity Object Properties ......................................... 87
Table 20 Status Flags .............................................................................. 87
Table 21 Reliability .................................................................................. 87
Table 22 Event State ............................................................................... 87
Table 23 Calculated Humidity Objects .................................................... 88
Table 24 Calculated Humidity Object Properties ..................................... 88
Table 25 Status Flags .............................................................................. 88
Table 26 Reliability .................................................................................. 89
Table 27 Event State ............................................................................... 89
Table 28 Temperature Object Properties ................................................ 90
Table 29 Status Flags .............................................................................. 90
Table 30 Reliability .................................................................................. 90
Table 31 Event State ............................................................................... 90
Table 32 Operation Pressure Object Properties ..................................... 91
Table 33 Status Flags .............................................................................. 91
Table 34 Operation Altitude Object Parameters ...................................... 92
Table 35 Status Flags .............................................................................. 92
Table 36 BACnet Smart Sensor BIBBs Support...................................... 93
Table 37 BACnet Standard Application Services Support ...................... 94
Table 38 Modbus Functions Supported by HMW90 ................................ 95
Table 39 HMW90 Modbus Measurement Data Registers ....................... 95
Table 40 HMW90 Modbus Status Registers (Read-only) ....................... 96
Table 41 HMW90 Modbus Error Code Bits ............................................. 96
Table 42 HMW90 Modbus Configuration Parameter Registers .............. 96
Table 43 HMW90 Modbus Device Identification...................................... 97
Table 44 HMW90 Modbus Exception Responses ................................... 97
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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 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.
VAISALA _________________________________________________________________________ 7
User's Guide _______________________________________________________________________
Version Information
Table 1
Manual Code
M211399EN-G
M211399EN-F
M211399EN-E
M211399EN-D
Manual Revisions
Description
March 2015. This manual. Added description of the
Decorative Cover accessory. Updated description of BACnet and Modbus protocol implementations.
Various small updates.
February 2013. Previous version. Updated description of DIP switch settings for the digital output models. Updated description of UNIT command.
February 2013. Updated description of BACnet protocol implementation.
January 2013. Added HMW95 model. Added description of BACnet and Modbus protocol implementations. Updated configuration and wiring instructions.
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-G
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:
Recycling
- 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.
Recycle all applicable material.
Dispose of the unit according to statutory regulations.
Do not dispose of with regular household refuse.
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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-G
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.
Figure 1
1211-006
HMW90 Series Transmitters
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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,
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.
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Chapter 2 ___________________________________________________________ Product Overview
Output Parameters Explained
NOTE
Table 4 Parameters Supported by HMW90 Series
Parameter Symbol
Temperature T
Relative humidity
Dewpoint
Dewpoint
Dewpoint depression
Wet bulb temperature
RH
Td
Tdf dTd
Tw
Absolute humidity a
Mixing ratio x
Enthalpy h
°C
°F
°C
°F
°C
°F
°C
°F
Unit(s)
°C
°F
% 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).
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Transmitter Parts
1
6
7
2
3
4
8
5
Figure 2 Transmitter Parts - Outside
1201-004 where
1 = Locking screw for mounting base.
Not included, M3×6 recommended.
2 = Adjustment trimmers
3 = Service port
4 = Window for display (only in models where the display is visible)
5 = Locking screw for slide. Not included, M3×6 recommended.
6 = Display
7 = Type label
8 = Grip for slide
14 ___________________________________________________________________ M211399EN-G
Chapter 2 ___________________________________________________________ Product Overview
1
Figure 3 Opening the Transmitter
1201-005 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.
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1 9
2
3
4
5
6
7
10
No n-Me tric
Td 0...5
V
Rel ay O n
Re lay
Hig h
Cus tom
Me tric RH
0...
10V ff ay O ay Low
DIP
Relay Set Point
11
Figure 4
8 12
1201-006
Transmitter Parts – Inside (Analog Output Models)
where
1 = Mounting base
2 = Opening for cable (wiring from top)
3 = Terminal label
4 = Screw terminals
5 = Opening for cable (wiring from behind)
6 = Orientation arrow – should point up after the mounting base has been installed.
7 = Place for zip tie (for cable strain relief)
8 = Supports
9 = Transmitter body
10 = DIP switches for common configuration options; see section DIP
Switches of Analog Output Models on page 20.
11 = Rotary switch for relay setpoint (only for models with relay);
see section Relay Configuration in DIP Mode on page 21.
12 = HTM10 module with HUMICAP
®
sensor (HMW models) or
TM10 module (TMW models, measures temperature only).
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Chapter 2 ___________________________________________________________ Product Overview
1
10
2
7
12
3
4
5
8
11
13
6
Figure 5
9
14 15
1209-013
Transmitter Parts – Inside (Digital Output Models)
where
1 = Mounting base
2 = Opening for cable (wiring from top)
3 = Terminal label
4 = Screw terminals.
5 = Opening for cable (wiring from behind)
6 = Label for RS-485 baud rate DIP switch settings
7 = Orientation arrow – should point up after the mounting base has been installed
8 = Place for zip tie (for cable strain relief)
9 = Supports
10 = Transmitter body
11 = DIP switches for common configuration options; see section DIP
Switches of Digital Output Models on page 24
12 = RS-485 termination jumper (connects a 120 Ω resistor)
13 = DIP switches for transmitter address selection
14 = HTM10 module
15 = HUMICAP
®
sensor
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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.
2
1
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.
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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,
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.
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DIP Switches of Analog Output Models
No n-M
Td etr ic
Cu sto m
No n-M etr ic
Td 0..
.5V
Re lay
On
Re lay
Hig h
Cu sto m
NOTE
NOTE
1 2 3 4 5 6 7 8
Me tric RH
Figure 7
1 2 3 4 5 6 7 8
DI
P
HMW92/TMW92
Me tric RH
0..
.10
V
Of f
Re lay
Re lay
Lo w
DI
P
HMW93/TMW93
DIP Switch Settings of Analog Output Models
1111-066
6
7
8
DIP Position Setting
1
2
3
Non-metric Non-metric units (°F).
Metric
Td
RH
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).
4
5
0...5V
0...10V 0...10V analog output (both channels).
Relay On Relay enabled.
Relay Off Relay disabled.
Relay High Relay closed when measurement above setpoint.
Relay operation is linked to RH on HMW93, and T on
TMW93.
Relay Low Relay closed when measurement below setpoint.
Not used
Not used
Custom
DIP
Configuration through service port only.
Configuration by DIP switches only.
DIP switch 2 does nothing on TMW92 and TMW93.
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
20 ___________________________________________________________________ M211399EN-G
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 Setpoint on HMW93
0
5
6
7
8
9
1
2
3
4
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)
NOTE
The rotary switch only has 10 positions. Do not turn the switch so that it is between two positions.
- 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
VAISALA ________________________________________________________________________ 21
User's Guide _______________________________________________________________________
Relay closed
Relay open
Figure 8 Relay High in DIP Mode (HMW93)
60
50
40
30
100
90
80
70
20
10
0
Rotary switch set to 6 (60 %RH)
DIP 5 set to “Relay Low”
Relay closed
Relay open
Time
1111-117
60
50
40
30
100
90
80
70
20
10
0
Rotary switch set to 6 (60 %RH)
DIP 5 set to “Relay High”
Figure 9 Relay Low in DIP Mode (HMW93)
Time
1111-118
NOTE
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.
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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.
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DIP Switches of Digital Output Models
NOTE
NOTE
Modbus
ON
A B C
Parity Even
Non-Metric
128 64 32 16 8 4 2 1
ON
BACnet
1 2 3 4 5 6 7 8
Baud
Rate Metric
Parity None
1 2 3 4 5 6 7 8
Address
(Binary Weighting)
HMW95
1209-016
Figure 10 DIP Switch Settings of Digital Output Models
7
8
DIP
1
2 ... 4
5
6
Off
Off
Off
Off
On
On
On
On
Position
Modbus
BACnet
A
Setting
Modbus protocol in use.
BACnet protocol in use.
C Serial line baud rate. B
Off Off Automatic (default).
Off On 4800 (not available with BACnet protocol)
On Off 9600
On On 19200
Off Off 38400
Off On 57600
On Off 76800
On On 115200
Parity Even Selects 8 data bits, parity even, one stop bit
(8E1) for Modbus protocol.
Parity None
Non-Metric
Metric
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.
Not used
Not used
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.
The parity setting is only relevant for Modbus protocol, in which it chooses between 8N2 (parity none) and 8E1 (parity even) formats.
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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
=
Binary: 10100001
Decimal: 161
(128 + 32 + 1)
1 2 3 4 5 6 7 8
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.
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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.
NOTE
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.
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.
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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.
Figure 13 Installing the Mounting Base
1310-043
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 mm
2
(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.
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1310-044
Figure 14 Wiring from Behind (Recommended)
Figure 15 Wiring from Above
1310-045
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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
R
L
= 0 ... 600 Ω mA
Power supply
10 ... 28 VDC
R
L
= 0 ... 600 Ω
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 mA
R
L
= 0 ... 600 Ω
Power supply
10 ... 28 VDC
Figure 17 Three-Wire Wiring for HMW92
1211-007
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Wiring HMW93
Recommended wiring for long cables:
Relay -RH +RH -T +T -Vs +Vs
Power supply
18 ... 35 VDC or 24 VAC ±20% max. 50 VDC
500 mA
V
V
R
L
= 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
Power supply
18 ... 35 VDC or 24 VAC ±20%
V
R
L
= 10 kΩ min.
Figure 19 Three-Wire Wiring for HMW93
1111-069
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Wiring TMW92
-T +T mA
Power supply
10 ... 28 VDC
R
L
= 0 ... 600 Ω
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% max. 50 VDC
500 mA
V
R
L
= 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%
R
L
= 10 kΩ min.
Figure 22 Three-Wire Wiring for TMW93
1202-119
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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 DD+ -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
+Vs
-Vs
Transmitter
+Vs
Transmitter
+Vs
Transmitter
+Vs
-Vs -Vs -Vs
RS-485:
BACnet or
MODBUS master
D+
D-
D+
D-
D+
D-
D+
D-
GND
GND GND GND
SHIELD
Shld
Connect shield on controller side
Shld Shld
Set RS-485 termination jumper
1209-015
Figure 24 Several Transmitters on Same RS-485 Line
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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.
CONTROLLER
24 VAC
Supply voltage
+Vs
-Vs
HMW90
OUT
GND
Signal output
Shared common line
Supply voltage
+Vs
-Vs
HMW90
OUT
GND
Signal output
1112-026
Figure 25 Connecting a Common AC Power Supply
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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
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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
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Indicators on the Display
Indicator Position on Screen Meaning
Top right Communication arrows. Shown only on models with digital output. Down arrow is
Top right 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).
Top right
Top left
Is shown when relay contacts are closed
(HMW93 and TMW93 only).
Is shown when an MI70 Indicator is connected to the service port.
Bottom left 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).
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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
.
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.
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NOTE
Terminal Application Settings
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
) and a USB serial interface cable:
1. Connect the USB serial interface cable between your computer and the service port of the transmitter.
2. Start the PuTTY application.
3. 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.
4. 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.
5. 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.
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Figure 29 PuTTY Terminal Application
0807-004
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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
Command
AMODE
AOVER
Basic Serial Commands
Command
?
CALCS
ECHO
ENV
ERRT
ERRS
FORM [modifier string]
HELP Show list of currently available serial commands.
INTV [0 ... 9999 s/min/h] Set continuous output interval for R command.
PASS [9000]
R
RESET
S
SDELAY [0 ... 255]
SEND
SNUM
STATUS
UNIT [m/n]
VERS
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.
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.
Table 8 Advanced Serial Commands
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.
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Transmitter Information
Show Transmitter Information
The ? command outputs a listing of device information.
?<cr>
Example:
>?
Device : HMW93
SW version : 1.00.0.0000
SNUM : 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
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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
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Example (display full status):
>status
Device Name : HMW92
Copyright : Copyright Vaisala Oyj 2012
SW Name : XM90
SW Model : XM9x
SW version : 1.0.3.3728
Serial number : H1840005
Address : 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
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NOTE
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 - 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/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
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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
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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
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.
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 = Analog output channel, 1 or 2. lo_value = Low limit of the channel. hi_value = High limit of the channel. error_value = Error value of the channel.
Example (show current configuration):
>pass 9000
>amode
Aout 1 range ( V) : 0.00 ... 5.00 (error: 5.50)
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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:
RH relative humidity
T
temperature
Tdf dew/frost point temperature
Td dew point temperature
Tw
wetbulb temperature
h
x
enthalpy
mixing ratio
a absolute humidity
dTd
dew/frost point depression lo_value = Low limit of the scaling, in the units of the selected parameter. hi_value = 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)
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NOTE
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.
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 : RH (0.00 ... 100.00 %)
Aout 2 quantity : T (-5.00 ... 55.00 'C)
>amode
Aout 1 range ( V) : 1.00 ... 5.00 (error: 6.00)
Aout 2 range ( V) : 1.00 ... 5.00 (error: 6.00)
>aover
Aout 1 clipping : 0.00 %
Aout 1 error limit : 5.00 %
Aout 2 clipping : 0.00 %
Aout 2 error limit : 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 : 10.00 %
Aout 2 error limit : 20.00 %
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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 = 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
x
enthalpy
mixing ratio
a absolute humidity
dTd dew/frost point depression
Q2 = Second parameter to show on the screen. Available parameters are the same as for Q1.
Q3 = Third parameter to show on the screen. Available parameters are the same as for Q1.
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Example (show currently displayed parameters):
>pass 9000
>dsel
Quant 1 : T
Quant 2 : RH
Quant 3 : 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 = 21.71 %RH T = 23.13 'C
RH = 21.72 %RH T = 23.12 'C
RH = 21.77 %RH T = 23.12 'C
RH = 21.77 %RH T = 23.12 '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>
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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 = time interval, range 0 ... 9999. xxx = 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
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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 = 5.17 %RH T = 24.33 'C
RH = 5.17 %RH T = 24.33 'C
RH = 5.18 %RH T = 24.33 'C
RH = 5.18 %RH T = 24.33 '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 = -15.72 'C T = 24.38 'C C9
Tdf = -15.71 'C T = 24.38 'C C8
Tdf = -15.71 'C T = 24.38 'C C8
Tdf = -15.69 'C T = 24.38 'C 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 ...
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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
Abbreviation in FORM Command
RH
T
Tdf
Td
Tw h x a dTd
NOTE
Table 10
Modifier
x.y
#t
#r
#n
""
#xxx
Ux
CS2
CS4
CSX
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
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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
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
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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
T
Tdf
Td
Tw
h
x
a
dTd
relative humidity
temperature
dew/frost point temperature
dew point temperature
wetbulb temperature
enthalpy
mixing ratio
absolute humidity
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)
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Relay Configuration Examples
RSEL RH 60 70
RMODE Hi_Active
Relay closed
Relay open
60
50
40
30
20
10
100
90
80
70
0
Time
1111-119
Figure 30 Relay Hi_Active in Custom Mode (HMW93)
RSEL RH 60 70
RMODE Lo_Active
Relay closed
Relay open
60
50
40
30
20
100
90
80
70
10
0
Time
1111-120
Figure 31 Relay Lo_active in Custom Mode (HMW93)
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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
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
NOTE
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.
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.
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 : 1.000
RH Offset : 0.000
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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
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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
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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
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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 = Number of analog output channel to be tested (1 or 2). value = 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) : 0.00 ... 5.00 (error: 5.50)
Aout 2 range ( V) : 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.
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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
>
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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 : 6 (00000006h)
Name : HMW95_H2330001
Location : Location
Description : Description
Password : 1234
MAX_MASTER : 127 (007Fh)
COV_Interval : 0
Autobaud_Interval : 10
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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.
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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.
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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
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.
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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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 Trimmer Centering Screen
3. 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. Connect the HMW90 series transmitter to the HM70 hand-held meter using the connection cable (Vaisala order code 219980).
2. 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.
3. In the Functions menu of the HM70, select Calibrate XMW9x and press Start.
4. Confirm Yes. Confirm the automatic power off notification with
Ok.
5. Select parameter for adjustment, T or RH.
6. Screen shows the measured values and their difference. Press
Adjust to select the Adjustment mode.
7. 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
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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).
8. 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
For a description of the serial commands, see section Calibration and
Adjustment Commands on page 57.
1. Connect the HMW90 series transmitter to your computer using the
Vaisala USB cable (order code 219690).
2. 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.
3. Before changing the adjustment, issue the following commands to see the transmitter’s current adjustment information:
pass 9000 crh ct ctext cdate
4. 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.
5. 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.
6. After performing the adjustment, verify from the serial line or the display that the measurement has been corrected.
7. 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.
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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.
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To replace the module:
1. Disconnect the transmitter body from the mounting base.
2. 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 Replacing the HTM10 Module (HMW93)
3. Take the new module and align the pins to the connector on the transmitter’s component board.
4. 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.
5. Reconnect the transmitter to the mounting base.
6. 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.
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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
Relay Configuration in DIP Mode on
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.
Transmitter does not recognize a valid serial command, responds with message
FAIL 1: Unknown command
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.
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.
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Error Messages
Table 12 Error Messages
Error Text on Display
HTM10 01
HTM10 02
HTM10 04
HTM10 03
HTM10 05
4
22
HTM10 06 42
Error ID on
Serial Line
23
41
21
Possible Cause Remedy
Communication problem with
HTM10 module.
Problem with humidity measurement.
Internal problem with HTM10 module.
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 1 1
Internal 2 2
Internal 3 3
Internal 4 43
Internal problem with the transmitter.
- Restart the transmitter.
- Restore the factory settings using service port or DIP switches if reset does not help.
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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: N: Level:State: Error text
1: 0: CRITICAL:OFF: FLASH memory corrupted
2: 0: CRITICAL:OFF: Parameter read (using defaults)
3: 0: CRITICAL:OFF: Parameter write
4: 0: CRITICAL:OFF: HTM10 03 FLASH Corrupted
21: 0: ERROR:OFF: HTM10 04 RH measurement
22: 0: ERROR:OFF: HTM10 05 T measurement
23: 0: ERROR:OFF: HTM10 01 Continuous communication failure
41: 0: WARNING:OFF: HTM10 02 Single Communication failure
42: 0: WARNING:OFF: HTM10 06 Device Descriptor match
43: 0: WARNING:OFF: Factory parameter memory not consistent
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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.
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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. Disconnect the transmitter cover from the mounting base.
2. Make a note of the DIP switch positions before changing anything, so you can restore the positions later.
3.
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.
No n-M
Td etr ic
Cu sto m
No n-M etr ic
Td 0..
.5V
Re lay
Re
On lay
Hig h
Cu sto m
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
Me tric RH
DI
P
HMW92/TMW92
Me tric RH
0..
.10
V
Of f
Re lay
Re lay
Lo w
DI
P
HMW93/TMW93
1203-018
Figure 36 DIP Switches in Factory Reset Position
VAISALA ________________________________________________________________________ 75
User's Guide _______________________________________________________________________
Modbus
ON
A B C
Parity Even
Non-Metric
1 2 3 4 5 6 7 8
BACnet
Baud
Rate Metric
Parity None
HMW95
1209-028
Figure 37 DIP Switches in Factory Reset Position (HMW95)
4. 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.
5. Disconnect the transmitter cover again.
6. Set the DIP switches to the positions they were before.
7. Reconnect the transmitter cover to the mounting base. Check the startup screens to verify the configuration.
76 ___________________________________________________________________ M211399EN-G
Chapter 6 ____________________________________________________________ Troubleshooting
Reverting to Factory Settings Using
Service Port
Use the FRESTORE command to restore the transmitter to factory settings.
FRESTORE<cr>
NOTE
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 overwritted by the default settings at transmitter reset. For more information about this, see
section Changing Between DIP and Custom Configuration on page 23.
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
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
Table 14 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-G
Chapter 7 _____________________________________________________________ Technical Data
Table 15 Inputs and Outputs
Property
HMW92 and TMW92
Outputs
HMW92
TMW92
Loop resistance
Supply voltage
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
Isolation between output channels 500 VDC
HMW93 and TMW93
Outputs
HMW93
TMW93
Load resistance
Supply voltage
Max. current consumption
Relay
3-wire installation max cable resistance
HMW95
Supply voltage
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
Current consumption (with termination)
Average
Maximum
Power consumption
Output type
RS-485 end of line termination
Supported protocols
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
BACnet MS/TP
Operating mode
Address range, master mode 0 ... 127
Address range, slave mode 128 ... 255
Modbus RTU
Address range
Service port
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*)
Grey (RAL7035*)
Light Ivory (RAL1015*)
ABS/PC, UL-V0 approved
Screw terminals max. wire size 2 mm
4-pin M8
155 g
133 × 81 × 30
2
(AWG14)
*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-G
Chapter 7 _____________________________________________________________ Technical Data
Dimensions in mm
30
81
1111-061
Figure 38 HMW90 Series Dimensions
59.5
29.8
Ø 4
.4
30.5
1111-142
Figure 39 Dimensions of the Mounting Base
VAISALA ________________________________________________________________________ 81
User's Guide _______________________________________________________________________
APPENDIX A
BACNET REFERENCE
NOTE
NOTE
This appendix describes the BACnet protocol implementation of the
HMW90 series digital transmitters.
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.
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:
Product Name:
Product Model Numbers:
Applications Software Version:
Firmware Version:
BACnet Protocol Revision:
BACnet Standardized Device Profile
(Annex L):
List of all BACnet Interoperability
Building Blocks Supported
(Annex K):
Vaisala Oyj
XMW90
HMW95
1.0.28
1.0.0.0
Version 1, Revision 4
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)
DS-RP-B, DS-RPM-B, DS-WP-B, DS-COVU-B,
DM-DDB-B, DM-DOB-B, DM-DCC-B, DM-RD-B
82 ___________________________________________________________________ M211399EN-G
Appendix A _________________________________________________________ BACnet Reference
Segmentation Capability
Standard Object Types Supported
Data Link Layer Options
Segmentation Requests Supported
Segmentation Responses 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
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
(Clause 8)
®
network
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
Types of non-BACnet equipment
/network(s) supported:
Yes
No
Does the BBMD support registrations by
Foreign Devices?
Character Sets Supported
Router, Clause 6:
Annex H, BACnet Tunneling Router over IP
BACnet/IP Broadcast Management Device (BBMD)
Yes
No
UTF-8 / ANSI X3.4
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
None
84 ___________________________________________________________________ M211399EN-G
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.
Property
Object_Identifier
Object_Name
Object_Type
System_Status
Vendor_Name
Vendor_Identifier
Model_Name
Firmware_Revision
Application_Software_R evision
Location
Description
Protocol_Version
Protocol_Revision
Protocol_Services
Table 18 Device Object Properties
Data type
(Application Type)
BACnetObjectIdentifier
Writable
(Conforma nce Code)
Y (R)
Value or Initial Value
Y (R)
N (R)
02 00 00 00 (hex)
Object Type = 8,
Instance = xxxxxxx UV
"xMW9x_xxxxxxxx" UV
8 (Device Object)
CharacterString[50]
BACnetObjectType
(ENUMERATED)
BACnetDeviceStatus
(ENUMERATED)
Character String
Unsigned16
CharacterString
CharacterString
CharacterString
N (R)
N (R)
N (R)
N (R)
N (R)
N (R)
0 (Operational)
Persistence
Nonvolatile
Nonvolatile
Fixed
Volatile
"Vaisala Oyj"
339
Fixed
Fixed
"HMW95" Nonvolatile
X.X.X.X (BACnet interface) Fixed
X.X.X.X Fixed
Character String[50]
Character String[50]
Unsigned
Unsigned
BACnetProtocolServices
Supported (BIT STRING)
Y (O)
Y (O)
N (R)
N (R)
N (R)
Nonvolatile
Nonvolatile
Fixed
Fixed
Fixed
Protocol_Object_Types
_Supported
Object_List
BACnetObjectTypesSupp orted (BIT STRING)
BACnetARRAY[N]of
BACnetObjectIdentifier
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)
Fixed
Fixed
VAISALA ________________________________________________________________________ 85
User's Guide _______________________________________________________________________
Property
Max_APDU_Length_Ac cepted
Max_Master
Max_Info_Frames
Segmentation_Supporte d
APDU_Timeout
APDU_Retries
Device_Address_Bindin g
Database_Revision
Data type
(Application Type)
Unsigned16
Unsigned16 (0..127)
Unsigned
BACnetSegmentation
(ENUMERATED)
Unsigned
Unsigned
List of
BACnetAddressBinding
Unsigned
Writable
(Conforma nce Code)
N (R)
Y (R/O)
N (R/O)
N (R)
N (R)
N (R)
N (R)
N (R)
Value or Initial Value
244
127
1
3 (No segmentation)
3000 (ms)
0
NULL
0
Persistence
Fixed
Nonvolatile
Fixed
Fixed
Fixed
Fixed
Fixed
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-G
Appendix A _________________________________________________________ BACnet Reference
Relative Humidity Object
This Analog Input Object exists only in the HMW95 model.
Table 19 Relative Humidity Object Properties
Property
Object_Identifier
Data type
(Application Type)
BACnetObjectIdentifier
Writable
(Conformance
Code)
No (R)
Object_Name
Object_Type
Present_Value
Description
Units
Status_Flags
Reliability
Event State
Out_of_Service
COV_Increment
CharacterString
BACnetObjectType
(ENUMERATED)
Real
CharacterString
BACnetEngineeringUnits
(ENUMERATED)
BACnet Status Flags (BIT
STRING)
BACnet Reliability
(ENUMERATED)
BACnetEventState
(ENUMERATED)
BOOLEAN
Real
Min_Pres_Value Real
Max_Pres_Value Real
Table 20 Status Flags
Flag
IN_ALARM
FAULT
OVERRIDDEN
OUT_OF_SERVICE
Table 21 Reliability
State
FALSE
TRUE
FALSE
TRUE
FALSE
FALSE
TRUE
State
0 NO_FAULT_DETECTED
1 NO_SENSOR
2 OVER_RANGE
3 UNDER_RANGE
7 UNRELIABLE_OTHER
Value or Initial Value
No (R)
No (R)
00 00 00 02 (hex)
Object Type = 0,
Instance = 2
"RH"
0 (Analog Input)
Yes
(When Oos) (R)
No (O)
No (R)
Yes (when OoS)
(R)
Yes (when OoS)
(O)
No (R)
0.0
"Relative Humidity"
29 (percent-relativehumidity)
0 (FAULT == FALSE)
0 (NO FAULT
DETECTED)
0 (NORMAL)
Yes (R)
Yes (O)
No (O)
No (O)
0 (FALSE)
NaN (COV reporting disabled)
0.0 (same as limit for
UNDER_RANGE)
100 (same as limit for
OVER_RANGE)
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
Cause
No contact to measurement module
RH over 100%
RH under 0%
Other measurement error
Persistence
Nonvolatile
Nonvolatile
Fixed
Volatile
Nonvolatile
Nonvolatile
Volatile
Volatile
Volatile
Volatile
Nonvolatile
Nonvolatile
Nonvolatile
Table 22 Event State
State
0 NORMAL
1 FAULT
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
5
6
7
8
Instance Name
4 "Td"
"Tdf"
"dTd"
"Tw"
"a"
Description
"Dewpoint"
"Dewpoint"
"Dewpoint depression"
"Wet bulb temperature"
"Absolute humidity"
9
10
"x"
"h"
"Mixing ratio"
"Enthalpy"
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
Table 24 Calculated Humidity Object Properties
Property Data type
(Application Type)
Object_Identifier BACnetObjectIdentifier
Writable
(Conformance
Code)
No (R)
Object_Name
Object_Type
Present_Value
CharacterString
BACnetObjectType
(ENUMERATED)
Real
No (R)
No (R)
Value or Initial Value
00 00 00 xx (hex)
Object Type = 0,
Instance = x
0 (Analog Input)
0.0 Yes
(When Oos) (R)
No (O)
No (R)
See table above
See table above
Description
Units
Status_Flags
Reliability
CharacterString
BACnetEngineeringUnits
(ENUMERATED)
BACnet Status Flags (BIT
STRING)
BACnet Reliability
(ENUMERATED)
BACnetEventState Event State
Out_of_Service
(ENUMERATED)
BOOLEAN
COV_Increment Real
Yes (when OoS)
(R)
Yes (when OoS)
(O)
No (R)
Yes (R)
Yes (O)
0 (FAULT == FALSE)
0 (NORMAL)
0 (FALSE)
NaN (COV reporting disabled)
Persistence
Nonvolatile
Nonvolatile
Fixed
Volatile
Nonvolatile
Nonvolatile
Volatile
0 (NO FAULT DETECTED) Volatile
Volatile
Volatile
Nonvolatile
Table 25 Status Flags
Flag State
IN_ALARM
FAULT
FALSE
TRUE
FALSE
TRUE
OVERRIDDEN FALSE
OUT_OF_SERVICE 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-G
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 Event State
State
0 NORMAL
1 FAULT
Cause
No contact to measurement module
RH over 100%
RH under 0%
Other measurement error
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
Writable
(Conformance
Code)
No (R)
Object_Name
Object_Type
Present_Value
Description
Units
CharacterString
BACnetObjectType
(ENUMERATED)
Real
CharacterString
BACnetEngineeringUnits
(ENUMERATED)
Status_Flags
Reliability
BACnet Status Flags (BIT
STRING)
BACnet Reliability
(ENUMERATED)
Event State BACnetEventState
(ENUMERATED)
Out_of_Service BOOLEAN
COV_Increment Real
Min_Pres_Value Real
Max_Pres_Value Real
Table 29 Status Flags
Flag
IN_ALARM
FAULT
OVERRIDDEN
OUT_OF_SERVICE
State
FALSE
TRUE
FALSE
TRUE
FALSE
FALSE
TRUE
Table 30 Reliability
State
0 NO_FAULT_DETECTED
1 NO_SENSOR
2 OVER_RANGE
3 UNDER_RANGE
7 UNRELIABLE_OTHER
Table 31 Event State
State
0 NORMAL
1 FAULT
Value or Initial Value
No (R)
No (R)
Yes
(When Oos) (R)
No (O)
Yes (R)
00 00 00 03 (hex)
Object Type = 0,
Instance = 3
"T"
0 (Analog Input)
0.0
Yes (when OoS)
(R)
Yes (when OoS)
(O)
No (R)
Yes (R)
Yes (O)
No (O)
No (O)
"Temperature"
62 (degrees-Celsius)
Possible units are
C (62) or F (64).
0 (FAULT == FALSE)
0 (NO FAULT
DETECTED)
0 (NORMAL)
0 (FALSE)
NaN (COV reporting disabled)
-40.0 (same as limit for
UNDER_RANGE)
+80.0 (same as limit for
OVER_RANGE)
Cause
No contact to measurement module
T over +80 °C
T under -40 °C
Other measurement error
Persistence
Nonvolatile
Nonvolatile
Fixed
Volatile
Nonvolatile
Nonvolatile
Volatile
Volatile
Volatile
Volatile
Nonvolatile
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
Cause
Reliability equals 0 (NO FAULT DETECTED)
Reliability not 0
90 ___________________________________________________________________ M211399EN-G
Appendix A _________________________________________________________ BACnet Reference
Operation Pressure Object
Set current atmospheric pressure to improve the calculation accuracy of pressure dependent humidity parameters.
NOTE
Table 32 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
Pressure and Altitude objects are linked together. If Present Value in one object is changed, Present Value in another object is changed accordingly.
Character String
BACnet Object Type
Real
Character String
BACnet Engineering Units
BACnet Status Flags
BACnet Event State
Out of Service BOOLEAN
Table 33 Status Flags
Flag
IN_ALARM
FAULT
OVERRIDDEN
OUT_OF_SERVICE
State
FALSE
FALSE
FALSE
FALSE
No
No
Yes
No
No
No
No
No
Cause
Always FALSE
Always FALSE
Always FALSE
Always FALSE
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)
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 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
Pressure and Altitude objects are linked together. If Present Value in one object is changed, Present Value in another object is changed accordingly.
Character String
BACnet Object Type
Real
Character String
BACnet Engineering Units
BACnet Status Flags
BACnet Event State
Out of Service BOOLEAN
Table 35 Status Flags
Flag
IN_ALARM
FAULT
OVERRIDDEN
OUT_OF_SERVICE
State
FALSE
FALSE
FALSE
FALSE
No
No
Yes
No
Yes
No
No
No
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)
Cause
Always FALSE
Always FALSE
Always FALSE
Always FALSE
92 ___________________________________________________________________ M211399EN-G
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
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User's Guide _______________________________________________________________________
Application Services Supported
Table 37 below lists all the BACnet standard application services. The checked
services are supported by the device.
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
Table 37 BACnet Standard Application Services Support
Initiates Requests
Executes Requests
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Appendix B _________________________________________________________ Modbus Reference
APPENDIX B
MODBUS REFERENCE
NOTE
NOTE
This appendix describes the Modbus protocol implementation of the
HMW90 series digital transmitters.
For more information on Modbus protocol, refer to the Specification and
Implementation Guide for Modbus Over Serial Line.
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
Td
Tdf dTd 0011…0012 0262 (×0.01) °C
Tw a x h
Name Metric float Metric
RH
T
integer
Metric unit
Non-metric float
Non-metric integer
Non-metric unit
0003…0004 0258 (×0.01) %RH 6403…0004 6458 (×0.01) %RH
0005…0006 0259 (×0.01) °C
0007…0008 0260 (×0.01) °C
0009…0010 0261 (×0.01) °C
0013…0014 0263 (×0.01) °C
6405…0006 6459 (×0.01) °F
6407…0008 6460 (×0.01) °F
6409…0010 6461 (×0.01) °F
6411…0012 6462 (×0.01) °F
6413…0014 6463 (×0.01) °F
0015…0016 0264 (×0.01) g/m3 6415…0016 6464 (×0.01) gr/ft3
0017…0018 0265 (×0.01) g/kg 6417…0018 6465 (×0.01) gr/lb
0019…0020 0266 (×0.01) kJ/kg 6419…0020 6466 (×0.01) 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)
Address
0513,6913
Description
0 = no errors
Table 41 HMW90 Modbus Error Code Bits
7
8
9
3
4
5
6
Bit
0
1
2
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 HMW90 Modbus Configuration Parameter Registers
Name Metric float Metric integer
Metric unit & valid range
Non-metric float
Non-metric integer
Pressure 0777…0779 1029 (×1) 700…1100 hPa 7177…7179 7429 (×1)
Elevation 0779…0780 1030 (×1) -700...2300 m 7179…7180 7430 (×1)
Non-metric unit & valid range
700 … 1100 hPa
-2300 … 10000 ft
NOTE
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.
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Appendix B _________________________________________________________ Modbus Reference
Table 43
Object Id
0x00
0x01
0x02
0x03
0x04
0x80
0x81
0x82
HMW90 Modbus Device Identification
Object Name
VendorName
ProductCode
MajorMinorVersion
VendorUrl
ProductName
SerialNumber
CalibrationDate
CalibrationText
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)
Table 44
Code
01
02
03
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
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