NESA evolution User manual

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Environmental monitoring
system and remote control
User manual
Ver. R01.22

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Summary
1Introduction.......................................................................................................................................... 4
1.1 Contents of the package................................................................................................................... 5
1.2 First start-up.................................................................................................................................... 7
1.3 Connection to the datalogger ............................................................................................................ 8
2Web interface ..................................................................................................................................... 10
2.1 Authentication................................................................................................................................ 11
2.2 Access as MASTER User.................................................................................................................. 12
2.3 Log in as a NORMAL User ............................................................................................................... 15
2.3.1 Viewing data in Real Time............................................................................................................ 15
2.3.2 Configuration .............................................................................................................................. 20
2.3.2.1 MASTER DATE page ................................................................................................................. 20
2.3.2.2 MEASUREMENETS page ............................................................................................................ 22
2.3.2.3 Memory location and correction formula .................................................................................... 36
2.3.2.4 TRANSMISSION page ............................................................................................................... 39
2.3.2.5 CFG-SERVICE page of the configuration check ........................................................................... 43
3Communication processes.................................................................................................................... 46
3.1 Modbus ......................................................................................................................................... 46
3.1.1 "Listener" mode - Slave ............................................................................................................... 47
3.1.1.1 TCP Slave ................................................................................................................................ 47
3.1.1.2 RTU Slave ................................................................................................................................ 49
3.1.2 "Caller" mode - Master................................................................................................................. 50
3.2 SDI-12 .......................................................................................................................................... 51
3.3 Socket ........................................................................................................................................... 53
3.3.1 List of available commands .......................................................................................................... 54
3.4 FTP (File Transfer protocol) ............................................................................................................ 56
3.4.1 Server FTP.................................................................................................................................. 56
3.4.2 Client FTP ................................................................................................................................... 57
3.5 SSH (Secure Shell) ......................................................................................................................... 57
3.6 SFTP (Secure File Transfer Protocol) ............................................................................................... 59
4Connecting the sensors of .................................................................................................... 61
4.1 PS2 Connectors –Pin out ............................................................................................................... 62
4.2 I/O connection on PS2 connectors................................................................................................... 65
4.3 Connection of serial sensors............................................................................................................ 68
4.4 I/O Connection trough M2Ch interface............................................................................................. 68
4.4.1 Electrical connection of the sensors .............................................................................................. 70
4.4.2 Technical specifications ............................................................................................................... 70
4.4.3 Examples of connection ............................................................................................................... 71

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5. Data encryption and protection ............................................................................................................ 73
6. Using the keyboard ............................................................................................................................. 74
7. ADVANCED Page: Data Record Output ................................................................................................. 76
8. CONFIGURATION EXAMPLE ................................................................................................................. 77
8.1 Step one: Registry.......................................................................................................................... 78
8.2 Step two: Measure ......................................................................................................................... 79
8.2.1 Temperature ............................................................................................................................... 79
8.2.2 Pressure ..................................................................................................................................... 80
8.2.3 Thermopile or Solar Radiation ..................................................................................................... 81
8.2.4 Discharge ................................................................................................................................... 82
8.2.5 Humidity..................................................................................................................................... 83
8.2.6 Wind Speed ................................................................................................................................ 84
8.2.7 Rain ........................................................................................................................................... 85
8.2.8 State .......................................................................................................................................... 86
8.2.9 Water Level ModBus.................................................................................................................... 87
8.2.10 Water Level SDI12..................................................................................................................... 88
8.2.11 Calculated Measure –Dew point................................................................................................. 89
8.2.12 Generate analog output ............................................................................................................. 90
8.2.13 Alarm management ................................................................................................................... 91
8.3 Step three: Transmission ................................................................................................................ 92
8.4 Step four: Check configuration and connections ............................................................................... 93
8.5 Step five: Functional check ............................................................................................................. 94
9. Abbreviated Procedures and Tricks....................................................................................................... 95
9.1 Set the TIME ZONE ........................................................................................................................ 95
9.2 Change SMTP of email sending (use of personalized email) .............................................................. 96
9.3 COM ports using ............................................................................................................................ 97
9.4 TEST serial Modem with AT commands ........................................................................................... 98
9.5 Restore datalogger after an error on configuration ........................................................................... 98
10.Diagnostic Function ........................................................................................................................... 99
10.1 Table of possible drawbacks........................................................................................................ 100
11. Technical specifications.................................................................................................................... 102
Appendix A: Data record track extract....................................................................................................... 104
Appendix B Tables of measurements and processing ................................................................................. 106
Appendix C: Warranty Terms.................................................................................................................... 108
NESA S.R.L. WARRANTY CONDITIONS ............................................................................................... 108
SEND BACK UNDER WARRANTY......................................................................................................... 109

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1Introduction
represents the natural development of the already known and reliable TMF series of NESA
dataloggers, with a product equipped with the most modern data acquisition technologies that combines the
highest level of performance with improved and complete ease of use. A modular open datalogger with very
high precision, equipped with a Linux, web server Apache and PhP interpreter operating system, , usable and
configurable via the web without the need for any external or proprietary software.
contains all the computing power of an ARM®32 bit processor, managed across the knowledge of
over twenty years of experience in Linux Embedded operating systems, and with a high technical ability in
processing, calculation and data processing methodologies and algorithms.
has a superior ability to acquire signals in a practically unlimited number of I/O and has different
types of memory for the protection of data or copies of them, managed at different levels of security.
offers transmission and data transmission functions that allow the use of all modern broadcast
channels (modem, radio, mobile phone network, satellites, copper or fibre cable, etc.), also in redundancy
between them (transmission redundancy); it makes available most of the widespread protocols between
information sharing systems, for example RS232, RS485, Modbus, TCP-IP, SMTP, FTP, Socket TCP, SDI12, SNP
and many others. The structure of the stored and / or transmitted record or data track offers a wide range of
customisation, starting from the simple structure of the Nesa, being able to change in the sequences and
contents, as well as in the separation characters.
Finally, has an innovative user management system, dividing them between master user and
normal user, allowing the sharing of machine resources, while creating different configurations for the user as
if they were different dataloggers. In this manual a specific section is dedicated to the topic.
On-board software is multilingual with possibility of choice.

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1.1 Contents of the package
Before the installation check that the contents of the package correspond to the following:
•no.1 terminal complete with extractable Phoenix-type screw connectors
•no.1 USB dongle key minimum size 8GB or higher.
•no. 1 crossed RJ45 Ethernet cable (LAN cross cable).
•Calibration report with annual validity from the first active configuration.
The datalogger is supplied calibrated, tested, and equipped with an example configuration for the acquisition of
a set of measurements.
Front
Rear panel
Status LED
Power switch
Serial ports
DB9-M
Keypad
Communication ports:
1x LAN 100Mbit
2x USB type A
1x USB type B
Display
6-pole power
connector
4-pole power
connector for
external devices
Reset button and Watch-Dog
hardware enable switch

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NOTE: do not use external charger with internal charger, this can damage the datalogger. In case ask to NESA
how to proceed
Front panel
6-pole power connector
Name
Function
+12 Bat
Battery-powered (+10.8Vdc÷ 15Vdc)
Gnd
Grounding clamp (3 terminals)
In.S.P.
Power input from solar panel or AC/DC power
supply (220Vac/13.8Vdc)
+12 Out
Auxiliary power supply output (max 3A)
4-pole connector
Name
Function
+12 Tel
Telephonic terminal power supply ONLY
(status is managed by datalogger automatically)
Gnd
Grounding clamp (2 terminals)
+12 Ext
Auxiliary power supply output (max 3A)
4-pole I/O double connector
Name
Lower position
Upper position
+12 Vdc
Powered output (1A)
Powered output (1A)
GND/A
Mass line SDI12
RS485 A
SDI12/B
Line SDI12
RS485 B
Gnd
Ground clamp
Ground clamp
6-pin DIN 6-pin
interface connectors for
analog and digital I/O
channels
Fuse 5x20mm
Capacity 5 A
RS485 and SDI12
input

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1.2 First start-up
Before connecting the datalogger, make sure that the power button is in the 0 (Off) position.
Connect the power supply to the datalogger through the special 6-pole connector, using a battery (12Vdc
minimum 1A / h), or a 220Vac/12Vdc wall power supply according to the following procedure:
a) If you have battery-only, connect its terminals to the +12Batt and Gnd inputs.
b) If you only have a wall power supply unit , connect the terminals to the +12Batt and Gnd inputs.
c) If you have a wall-mounted power supply unit + battery, connect the battery terminals to the +12Batt
and Gnd inputs, and the power supply unit to the InPS and Gnd inputs. In this configuration the battery
is automatically recharged (max. charging current 5A) from the datalogger.
NOTE: As the datalogger has an internal battery charger, the supply voltage from external power supply should
be at least 13.5-13.8Vdc.
Turn the power button to the 1 (ON) position.
In this phase it is possible, through the sequence of the status LEDs, to verify the correct ignition of the machine.
In particular:
1. When the power button is set to ON the LED A is on.
2. Depending on the type of power supply (battery, or battery plus panel or battery + power supply) the
LEDs Aand Bwill light up, which remain lit to signal the presence of the power source. In particular LED
B will only be on if there is battery connected and charging.
3. The Cand Dstatus LEDs are normally off, only flashing if there is an anomaly in the system start-up
phase, signalling an operating system kernel anomaly.
Status Led
Name
Colour
Function
A
Green
Power on of Led (always on)
B
Red
Battery charge Led (only during charge time)
C
Yellow
Boot anomaly signalling Led
D
Yellow
Boot anomaly signalling Led

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The ignition sequence is also shown in the display, where the machine starts and diagnostics messages appear
(see paragraph 9); of these the first one represents the serial number of the datalogger.
The entire start-up sequence of the datalogger takes approximately 90 seconds.
Once the start-up is complete, the datalogger starts the standard acquisition cycle and the display of the
instantaneous data in the display has the following form:
* For decoding see appendix A and B
The measurements are displayed cyclically at intervals of approximately 2 seconds, passing from one
measurement to another depending on the configuration of the machine.
1.3 Connection to the datalogger
The datalogger can be immediately connected to a computer, laptop or PDA, through the Lan network interface.
It leaves the factory with a pre-set IP address, and subsequently modifiable, to which reference must be made
for connection.
LAN interface:
IP:
192.168.1.115
Subnet mask:
255.255.255.0
To connect to the machine it is necessary to use the supplied Ethernet cable or any
cross (cross) type cable following the procedure below:
1. Leave the datalogger on or switch it on.
2. Connect the cable to the LAN port of your computer.
ID001 15:32 10-03-2010
108 01 13.5 Volts
ID assigned
to the
terminal
Date and time
Value and unit of
measurement
Measuremen
t ID*
Type of
measurement*

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3. Connect the other end of the cable to the datalogger Ethernet port.
4. Turn on the computer and set an IP address of your network card congruent with that of the datalogger,
for example 192.168.1.10 and subnet mask 255.255.255.0.
At this point the connection between computer and is established and it is possible to access
configuration pages or data visualization pages as explained in the next paragraphs.
NOTE: The data logger gets off the connection from browser after 30 minutes if there aren't any input from user.
This time interval depends on the Browser used.

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2Web interface
To access the configuration and/or display data page of the machine, it is sufficient, after establishing the
connection as in the previous paragraph, to open one of the following Internet browsers for which the
datalogger is compatible:
✓Chrome (of Version 63.0.3239.132)
✓Firefox (of 57.0.4)
✓Edge (of 41.16)
The configuration procedure of an terminal only takes place through the use of web pages, while
the display of data is also possible on the display.
For correct display of the pages, enable javascript scripts and the option to search the most recent versions of
the stored pages in the tools or options menu of each browser
With the browser active, type in the address bar the IP of the datalogger: http://192.168.1.115 (factory address)
and wait for opening of the main page that allows the general user to choose between viewing the instantaneous
data and configuring the datalogger.
Address bar
Software revision and
language selection
Access to the
configuration pages
Direct access to the
data pages of the
acquired
measurements

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2.1 Authentication
Access to any datalogger resource always requires initial authentication.
Authentication can take place as a primary user (MASTER user) or as a secondary user (NORMAL User),
depending on whether you have full access to all functions or only a more limited part.
A MASTER user has access to all the resources of the datalogger and to the management of the credentials of
secondary users, in particular they can:
•Change the IP and the Subnet Mask of the datalogger
•Change Master user password
•Create, edit or delete up to a maximum of 5 NORMAL users
•Access the advanced functions of the datalogger
A NORMAL user can use all the functions of the datalogger except for those of the MASTER user, that is, they
can generate, modify, delete configurations associated with that NORMAL user, view and download data, and
program the datalogger.
This advanced mode of allows generating virtual dataloggers on the same machine, as if they were
completely independent acquisition systems that use the same hardware resources. It is possible, for example,
to create two or more different configurations that acquire data from different sensors, processing them,
treating them and storing them (with or without remote sending), in a manner different from each other. For
each configuration, the datalogger associates a different memory area for the configuration, for the data and
for the management of the transmission buffer.
Every NORMAL user can only see and manage their own configuration and data, without knowing the existence
of other users on the same machine; only the MASTER can see it all indifferently.
From the factory the datalogger always exits with a pre-enabled MASTER user to which up to 5 secondary users
can be associated. The factory credentials of the MASTER user are:
username: root password: root
At the touch of one of the two keys, the authentication page
opens, where, by entering the credentials of the selected user, you have access to the pages relating to the
acquired data, or to the configuration ones, according to the authorisation associated to the logged user.

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2.2 Access as MASTER User
The MASTER user has all the access privileges to all the functions of the machine.
The web pages of have in common a simple and efficient menu divided into three coloured areas:
•The Blue zone pages are used to configure the datalogger and can be differentiated according to
whether the connected user is MASTER or NORMAL.
•The pages of the Green area allow the visualisation of data in numerical and graphic format
•The Red zone identifies the user connected with an ID.
Configuration pages
Data
Page
Connected
user

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The pages accessible only to the Master user will be highlighted below, while in the next section the pages
shared by all NORMAL users will be explained with standard access privileges, pages also common to the
MASTER user.
The MASTER user on the MASTER DATA page has the Options button not visible to NORMAL users enabled.
Page Master data -> Options
The Options menu contains information on the IP address of the datalogger, of the Subnet Mask and allows
entering of a possible Gateway (if any) for exit of the network communication packets.
These are clearly unique features for the hardware and can be uniquely set by the MASTER user.
All modifications become operative by pressing the SAVE PAGE key button. On the ADVANCED page the master
user has available the Users section not visible to NORMAL users.

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Page Advanced -> Users
It allows the MASTER user to manage NORMAL users, here it is possible to add, delete users or modify their
credentials from 1 to 5; user 0 identifies the MASTER.
The password of the same MASTER user (ID = 0) is editable on this page, a pop-up appears after saving to prompt
keeping track of the credentials.
Each user can also be disabled through the special switch called "Enable / Disable cfg". In case it is not enabled,
all the actions associated to the user (memorization, sending data ...) will be suspended.
NOTE: MASTER password recovery occurs only by contacting NESA, which will send the recovery procedure.
Changing the password is done simply by changing the field relative to the chosen user. If this field is left blank,
the password will remain the one previously assigned.
At the end of the changes, it is necessary to confirm them by pressing the button at the
bottom of the page, while they will become effective after the restart of the datalogger through the
corresponding button in the Create CFG page.
At the end of any modification to the configuration, is necessary to confirm them by pressing to
make them effective.

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2.3 Log in as a NORMAL User
Every ’s user, from the operational point of view, has:
a. a dedicated space in the file-system of the datalogger, with folders and configuration files only
associated with that user.
b. completely separate management of the data records created.
c. independent management of the process of sending the created files.
d. The possibility to create specific customised configurations.
Access to the datalogger takes place either via the configuration button or through the data display button:
It is always possible to move from one page to another.
2.3.1 Viewing data in Real Time
If the authentication has been carried out by pressing the key you are
redirected directly to the page of instantaneous data acquired by the datalogger according to the set
configuration. Otherwise, you can always reach this page from any other point by clicking on the green button
at the top of the menu as shown in the paragraph.2.2.
The page opens on measurements in tabular format, whose fields and values are shown and updated in a few
seconds. On the left there are 3 sections (MEASUREMENTS, GRAPHS and MAP) which correspond to similar
manners of displaying information.
At the top of the page, common to each section, is some information of the datalogger for its identification: the
name, the ID, the date of the client computer connected to the datalogger (User Data) and the date and time of
the measurement (to recognise any time zone). Also through the indicated link, it is possible to download the
data in Excel format (.csv) of the current month or previous month with respect to the datalogger date.
The file that is downloaded is a CSV (Comma-Separated Values) file type, which can be opened with a
spreadsheet, and whose name shows the following format:

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user_id –terminal_id-current_month.csv
user_id –t erminal_id -previous_month.csv
where user_id is the numerical identifier of the user who has logged in, terminal_id represents the numerical
identifier associated with the machine in configuration and current and previous are respectively the file of the
current month and that of the previous month.
For example, the file 4-101-current_month.csv is the file containing the data of the current month of the
datalogger with ID 401 created by the user 4.
Open in a spreadsheet, the file contains column labels to ascertain the date and time of storage (every row) and
the measurement with relative processing associated with the data in the column.
An example:

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MEASUREMENTS section
This section summarises in a user-friendly format all the information concerning the measurements acquired
and available to the user who has logged in.
In the central part of the page is the information associated with the acquired measurements:
✓Measure represents the sequence of measurements according to the saved configuration
✓Measure’s name Name of the measurements according to the saved configuration with possible ID
✓Unit engineering unit associated with the measurement according to the saved configuration
✓Last value represents the last value acquired by the datalogger
✓Tendency.Change in the last measurement compared to the previous value
✓Previous value represents the value of the previous acquisition cycle of the datalogger

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The page values are updated automatically every 10 seconds or can be forced by pressing the button
or chosen on the upper right menu.
NOTE: the Nesa dataloggers, calculate the instantaneous value of a measurement (in real time) through a
Gaussian average on a very high number of samples, in other words the data per second is not the result of an
analogical digital conversion of the electronics, albeit of the highest level, but the result of a weighted average
over a Gaussian bell, of an average number of over 100 samples.
GRAPHICS Section
The graphs section allows representation with a powerful graphical engine of the values acquired according to
one or more Cartesian diagrams based on time, auto-adaptive on the scale of the acquired values, and
independent for each measurement.
Each diagram is automatically populated in real time and cyclically over periods of 10 seconds, displaying the
value acquired at the time instant with a dot. All measurements in the configuration are displayed in different
colours.
On the right the identification label of the measurement is always present.

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NOTE: Even if not present in the configuration, are always shown both in the Measurements section and in the
Graphics section, two measurements called "Voltage" (in Volt) and "Power" (in Volt), which represent the two
additional analogue channels of the datalogger, used in a native way for measurement of the primary power
value, typically the battery, and the secondary one, typically the photovoltaic panel or a direct voltage power
supply or other source.
MAP Section
The Map section allows geo locating of the datalogger. It uses the GPS Latitude and Longitude coordinates
entered during configuration, or acquired from a GPS antenna connected to the same datalogger.
The map representation passes through a connection to the Google Mapssite and through a library of tools
made available for this purpose. Obviously, the map only appears when the datalogger is connected to the
network.
On the right are the coordinates in WGS84 GD decimal format.

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2.3.2 Configuration
If the authentication has been carried out by pressing the key, you will be
redirected to the first page (ANGLE) to start the configuration sequence of the datalogger.
All configuration pages are similar and characterised by a pair of buttons in the bottom right:
The "Save Page" key allows the saving of any changes made to the individual page, automatically generating the
new configuration without restarting the datalogger.
The “Reset” key allows resetting of the valuesof each field of the page.
2.3.2.1 MASTER DATE page
This page contains all the information that characterises the datalogger (it can be different for each user).
In the upper part we have:
✓DL name name of the alphanumeric terminal
✓ID No. numeric identification of the terminal (max 6 digits)
✓Save/Submit Data saving and/or sending of the file (data, images, etc.), from 1 to 1440 minutes
✓Data file format formatting applied to the data file: NESA ASCII with comma as separator, or
dot/semicolon, NESA ASCII with comma, dot/semicolon Encrypted, custom
format