Campbell DataView II User manual

DataView II
(CD295)
Dual Line Display
Revision
: 12/2021
Copyright ©
2005 – 2021
Campbell Scientific, Inc.

i
Table of Contents
PDF viewers: These page numbers refer to the printed version of this document. Use the
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1. Introduction................................................................ 1
1.1 Changes from Version 1 to Version 2..................................................1
1.2 Normal Operation Overview................................................................2
2. Installation Procedure ............................................... 3
3. Software ..................................................................... 3
3.1 Computer System Requirements..........................................................3
3.1.1 Minimum Configuration ...............................................................3
3.1.2 Recommended Configuration .......................................................3
3.2 Software Installation ............................................................................3
4. Programming ............................................................. 5
4.1 PC295W ...............................................................................................5
4.1.1 Operation.......................................................................................6
4.1.2 Online Help.................................................................................11
4.2 Device Configuration Utility..............................................................11
4.2.1 Operation.....................................................................................12
4.2.1.1 Establishing a Connection ................................................12
4.2.1.2 Downloading a Program...................................................13
4.2.1.3 Modifying Settings ...........................................................15
4.2.1.4 Upgrading the Operating System (OS).............................15
5. Mounting in Enclosure Door................................... 17
6. Shipping Kit ............................................................. 19
7. Hardware .................................................................. 19
8. Problems .................................................................. 20
9. Temperature Extremes and LCD Adjustment........ 22
Appendices
A. CD295 Door Kit Assembly Diagram ..................... A-1
B. CD295 Mounting Template.................................... B-1
C. Using Time Stamps ............................................... C-1

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DataView II (CD295) Dual Line Display
1. Introduction
The DataView II is a two-line, 32-character LCD that displays real time values
from a CR2xx series data logger along with a predefined description string and
units string.
Two buttons allow the user to scroll through the programmed locations that are
updated as often as they are measured. When the user has not pressed a button
within a user-defined period (default 120 seconds), the DataView II switches to
low power mode, drawing a current of less than 1 mA.
The DataView II is easily configured using the Windows based PC295Wand
Device Configuration Utility packages.
Throughout this document the terms “DataView II”, “CD295” and
“DataView2” are used interchangeably.
FIGURE 1-1. DataView II (CD295)
1.1 Changes from Version 1 to Version 2
The original release of the CD295 operating system (V1.0) and PC295W
(V1.0) supported the CR200-series data loggers only. Version 2 of the CD295
operating system and PC295W added support for our CR1000, CR800, CR850,
and CR3000 data loggers, as well as support for their new data types (long
integers, Booleans, strings, and time stamps).
NOTE

DataView II (CD295) Dual Line Display
2
To use the new capabilities, both the CD295 operating system (OS) and
PC295W software needs to be upgraded to Version 2. Refer to Section 4.2.1.4,
Upgrading the Operating System (OS) (p. 15), to upgrade the CD295 OS. To
upgrade PC295W, uninstall previous software versions and then follow the
procedure provided in Section 3.2, Software Installation (p. 3).
1.2 Normal Operation Overview
Below is a general description of normal operation of the DataView II
(CD295).
When first powered up, the DataView II displays the following greeting,
Campbell
Scientific
and the backlight will be lit.
After a program has been successfully downloaded, the CD295 is configured
and connected to the data logger; it is ready for general use. Pressing one of the
buttons on the CD295 will cause the LCD to display something like the
example below.
Temperature
1.234 deg C
The top line contains a string referred to as the “Description”, and the second
line contains both the value retrieved from a Public Variable in the data logger
and a string referred to as “Units”. The value displayed on the second line can
be displayed with a user-selectable number of decimal places.
Together, the combination of “Description”, Public Variable, “Units” and
number of decimal places, is referred to as a “screen”. The CD295 is capable of
holding and displaying up to 30 “screens”. There are no limitations on the
order of screens, or which Public Variables are displayed. Pressing the buttons
on the front panel of the DataView II will cause the next (or previous) screen to
be displayed.
The CD295 will attempt to collect a new value from the data logger under the
following conditions:
•The user has changed “screen”
•The scan interval of the data logger has expired
After some time (default 10 secs), the backlight will turn off, however the text
will remain visible until the unit enters sleep mode (default 120 secs).
Whenever one of the buttons on the front panel is pressed, these two timers
(Backlight timer and Power Down timer) are both reset. As a result, the
DataView II can be woken from sleep mode by pressing either of the buttons.
Description
Value
Units

DataView II (CD295) Dual Line Display
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While in sleep mode the DataView II will continue to respond to PakBus
communications, however the LCD is turned off and no requests are sent to the
data logger.
2. Installation Procedure
Below is a general guide to the steps involved in configuring and programming
a DataView II (CD295).
1. Download the latest version of the CD295 OS, PC295W, and the Device
Configuration Utility from www.campbellsci.com/downloads.
2. Connect the 9-pin D-connector of the programming cable into the CD295
data cable and the other end into your computer serial COM port.
3. Using PC295Wand the data logger program, configure your screens of
your DataView II (DV2 file).
4. Using Device Configuration Utility, send the DataView II program (DV2
file), and change any settings (e.g., PakBus Address).
5. Remove the programming cable.
6. Mount the CD295 into your data logger enclosure.
7. Connect the CD295 data cable to the data logger RS-232 port.
8. Power up the data logger and CD295 and verify correct operation.
3. Software
3.1 Computer System Requirements
3.1.1 Minimum Configuration
PENTIUM-class machine with 64 MB RAM running Windows 98.
3.1.2 Recommended Configuration
PENTIUM-class machine with 128 MB RAM running Windows 2000/XP.
3.2 Software Installation
1. To begin the installation of the PC295W software, download the latest
version of the software from www.campbellsci.com/downloads and open
the setup.exe file, which contains the software to be used.

DataView II (CD295) Dual Line Display
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2. After starting Setup.exe you will be presented with a welcome screen
giving a brief introduction to the software. Click OK.
3. The next screen asks where you would like PC295W installed on your hard
disk. If you wish to install into a path other than the default, click Change
Directory and use the windows dialog to choose a suitable location. Once
the path is correct, click the Install icon in the top left corner of the
window.
4. The next dialog to appear asks which program group on the start menu,
you would like to add PC295W. The default is usually acceptable;
however, if not, you are free to choose your preferred program group in
this step. Click Continue.

DataView II (CD295) Dual Line Display
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5. File copying will now begin.
6. Once the Setup is complete, the following window is displayed. You are
now ready to start using PC295W. Click OK.
4. Programming
4.1 PC295W
PC295W software is a freeware utility provided by Campbell Scientific to
write programs for the DataView II.
PC295W first reads the data logger program, to generate the list of Public
Variables and to determine the scan rate of the data logger. Once this
information has been determined, the user is able to choose a public variable to
display, and can associate “Description” and “Units” strings with it to form a
“screen”. A group of screens forms a user program, and PC295W saves this
program to disk in a DV2 file.
The CD295 is a PakBus device, using PakBus communications to
retrieve data from the data logger. However, the CD295 does not
support PakBus encryption. When the CD295 is connected to a
data logger using PakBus encryption, the data logger program
must include an EncryptExempt() statement with the PakBus
address of the CD295. Note that doing so will introduce an
exemption rule to the data logger security rules.
By default, the first part of the filename is the same as the data logger program
from which it was generated. So, for example, if you opened station1.cr2 to
create the DataView II program, PC295W would save the program as
station1.dv2. This naming convention is strongly recommended, but not
mandatory.
NOTE

DataView II (CD295) Dual Line Display
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4.1.1 Operation
1. To start PC295W, click Start > Programs > PC295W DataView2
Programming Software > PC295W DataView2 Programming
Software.
2. Once the PC295W program starts you will see the main screen.
3. The first step in creating a DataView II program is to select Create new
DataView2 Program from the File menu. This will open a file browser
window which will allow you to locate the data logger program (with
CR1, CR2, CR3, or CR8 extension). When the correct data logger program
is selected, click Open.
If you already have created a DataView II program that you wish to edit,
select Open Existing DataView2 Program in the File menu. A file
browse window will appear. Locate your DataView II program (.295
extension) and click Open.

DataView II (CD295) Dual Line Display
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4. If you have chosen to Create a new DataView2 program, a file browse
window will appear.
To operate correctly, your DataView II needs some information about the
program running in the data logger to which it will be connected.
PC295W reads the data logger program file you select at this step, and
extracts information such as the Scan Interval and the list of Public
variable names.
Locate the data logger program and select Open.
5. PC295W will now return to the main screen, however the CRX FileName
and DataView 2 Refresh Rate will no longer be blank. PC295W has read
your data logger program and is now ready for you to create a DataView II
program.
Select the Add Screen button.
Variable to Display has a dropdown list from which you are able to
choose a Public Variable used in the data logger program.

DataView II (CD295) Dual Line Display
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6. The Description and Units fields are free-form text strings that are
displayed on the CD295 along with the value collected from the data
logger. These fields can be used to provide a user-friendly description and
engineering units of the value displayed. It is also possible to choose the
number of decimal places to be used when displaying the value.
Complete the Description, Units and Decimal Places.
You can now continue adding screens by repeating steps 5 and 6, as many
times as necessary.
If the variable you have chosen is not floating point, the Display Options
panes on the right side of the screen will provide multiple options for
displaying the variable. The example below shows the Display Options for
a Boolean variable.
Long integer data types are used to store both integer whole numbers and
time stamps. Choose Numeric Value for the Display Option if your long
integer variable is a whole number. Several display options are offered for
time stamps (see below).

DataView II (CD295) Dual Line Display
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The date stamp will only show meaningful values if the long
integers are created correctly. For more information, refer to
Appendix C, Using Time Stamps (p. C-1).
7. If at any time you would like to return to an earlier screen, you can do so
by using the Screen Number dropdown list. Also, if you would like to
delete a screen you can select the screen you would like to delete from the
Screen Number dropdown list and click the Delete Screen button.
NOTE

DataView II (CD295) Dual Line Display
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8. After entering all of the screens in your DataView II program, you will
probably want to save your work. Click File > Save As and this will open
a dialog in which you can specify a filename and save your DataView II
program.
If you are modifying an existing program or have already saved your
work, you can select the Save option which will not prompt for a new
filename.

DataView II (CD295) Dual Line Display
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9. Once you have completed and saved the DataView II program, you are
ready to download the program into the DataView II itself.
To do this, you must have the Device Configuration Utility
installed on your computer. Please ensure that it is installed before
proceeding.
To continue with programming the DataView II (CD295), please refer to
Section 4.2, Device Configuration Utility (p. 11).
From within PC295W, Device Configuration Utility can be started through
the file menu. Click File > Program a DataView2 with a DV2 file.
4.1.2 Online Help
PC295W has two items on the Help menu — PC295 and About. About lists
the version number of the PC295W software, and PC295 contains online help
to guide you through operation of the software. It is a simple step-by-step guide
to writing your DataView II program.
4.2 Device Configuration Utility
Device Configuration Utility is a freeware utility provided by Campbell
Scientific for the configuration of PakBus devices. This tool allows the user to
send programs, upgrade firmware in the device, and modify device settings.
In the case of the CD295, Device Configuration Utility allows you to download
your program, and read/modify the following settings:
Version
the operating system version number
CD295 Address
the PakBus address of the DataView II
Logger address
the PakBus address of the data logger from which the CD295 should
collect values
NOTE

DataView II (CD295) Dual Line Display
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Logger Security Code
the security of the data logger – this should always be 0 for the CR200
Power Down Timer
the period of time after which the CD295 should return to sleep mode
Serial Number
the serial number of the DataView
Backlight Timer
the period of time to keep the backlight on
Before using Device Configuration Utility, it is important to provide power to
your DataView II (CD295) and connect the serial port of your computer to the
CD295, using the programming cable provided (see figure below).
4.2.1 Operation
4.2.1.1 Establishing a Connection
1. Start the Device Configuration Utility.
2. Select CD295 from the Device Type on the left-hand side of the window.
Verify the Serial Port in the bottom left of the window is correct and click
the Connect button.

DataView II (CD295) Dual Line Display
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3. Device Configuration Utility will automatically detect the connection
speed and PakBus address of the DataView II. Once detection is complete,
three tabs should appear in the window on the right-hand side. These are
Program Control, Send OS and Settings Editor.
The Program Control tab is used to send a program to the DataView II,
and is the most commonly used of the three tabs.
As the name suggests, the Send OS tab is used to send an Operating
System (OS) to the DataView II. This is used to upgrade the firmware of
the CD295.
The Settings Editor tab is used to read/modify the addresses and timers
mentioned above.
4.2.1.2 Downloading a Program
1. To download a program, ensure that you are already connected to the
CD295 and the Program Control tab is selected. Click the Send
Program button.

DataView II (CD295) Dual Line Display
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2. A file browser window will appear. Locate the DV2 file you wish to
download and click Open.
When a DataView II program is created, PC295W creates two
files — the DV2 file for download to your DataView II, and a .295
file which contains internal configuration information for the
PC295W program. You should only send the DV2 file to your
CD295.
3. Device Configuration Utility will download your program to the DataView
II and return to Program Control.
NOTE

DataView II (CD295) Dual Line Display
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4.2.1.3 Modifying Settings
1. The Settings Editor tab allows you to read/modify any device-specific
settings in the CD295. To change a setting, double-click the settings you
wish to change, and type the new value. Repeat for as many settings as
necessary.
Some settings are read-only, and others have limits on the range
of acceptable values. A description along with the maximum and
minimum values appears in the comments box at the bottom of the
window.
2. After all changes are complete, click Apply to send the new settings to the
DataView II. After the settings are applied, Device Configuration Utility
will show the new values of the Settings from the CD295.
3. If after editing a setting, you wish to discard the changes, click Cancel.
Device Configuration Utility will show the current values of the settings in
order for you to verify that the changes were discarded.
4. It is possible to return the DataView II to its factory default settings. To do
this, click Factory Defaults.
4.2.1.4 Upgrading the Operating System (OS)
From time to time, new operating system(s) for the DataView II may be
released to correct errors in the operating system or to add new functionality.
To take advantage of this, it is necessary to send the new operating system
(OS) to the DataView II.
NOTE

DataView II (CD295) Dual Line Display
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1. If you need to send an Operating System to your DataView2, open the
Send OS tab in Device Configuration Utility and select the Send OS
button at the bottom of the window.
It is not necessary to “Connect” using Device Configuration
Utility to send an operating system.
2. A file browser window will appear. Locate the operating system file (A43
extension), provided by your supplier, and click Open.
3. After selecting the operating system file, it will be necessary to power
cycle the DataView II. Disconnect the power from the CD295 and
reconnect it.
NOTE

DataView II (CD295) Dual Line Display
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4. The download will begin, and progress bar should begin to fill.
It is VERY important that the power cable and programming
cable remain connected while the download is underway.
Failure to do so may cause permanent damage to the
CD295.
5. When the download is complete, Device Configuration Utility will display
a pop-up window to confirm the success or to notify if there was an error.
6. Once the download is complete, disconnect power from the CD295 for at
least 30 seconds to ensure that it has been completely reset. After this, the
new operating system will run.
5. Mounting in Enclosure Door
If the DataView II will be exposed to the elements, it is important to fit the
CD295 door kit, as explained below.
1. Use the template provided to mark out the four mounting holes and cut-out
for the CD295.
2. Drill the four corner holes using a 4.5 mm drill and cut out the mounting
hole using a jigsaw or nibbler.
CAUTION

DataView II (CD295) Dual Line Display
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3. Apply a thin coating of neutral-cure silicon sealant between the flange of
the CD295 and enclosure door.
4. Use the screws and nuts provided to attach the CD295. Insert the head of
the screw followed by a flat washer through the front of the CD295. On
the inside of the enclosure, fit the rubber O-ring washer then the second
flat washer followed by the dome nut.
5. If fitted, remove the nut, bolt and washers from the top-left mounting hole
of the CD295 front panel.
6. Remove the “nylock” nut, stainless steel and rubber washers from the bolt
assembly fixed to the CD295 door. At this point, the bolt assembly holding
tag should be exposed.
7. Insert the bolt assembly through the top-left mounting hole of the CD295
front panel
8. From the inside of the enclosure, fit the rubber washer, stainless steel
washer and “nylock” nut onto the stainless steel bolt assembly.
9. After confirming that all hardware has been fitted in the correct order, tear
off the “Bolt Assembly Holding Tag”.
10. Tighten the “nylock” nut until the black rubber washer is tightly
compressed.
If you are fitting the CD295 door kit, only three bolts are required
to be fitted at this step. The bolt in the top-left corner of the CD295
front panel is not required. In this case, only fit the remaining
three bolts, and use the longer (25 mm) bolt supplied in the door
kit in the top-left hole. Do not over tighten as this will cause
damage to rubber washer.
See Appendix A, CD295 Door Kit Assembly Diagram (p. A-1), for the assembly
diagram for the CD295 door kit.
NOTE