1. SatLink 3 Logger/Transmitter SL3-1

2. Overview
Sutron’s SatLink 3 is data logger with a built-in satellite transmitter that is especially designed for hydrometry, meteorology and environment monitoring.

3. Typical Stations

4. Measurements Connect a wide range of sensors
Measure each sensor independently
Perform special calculations
Record data into non-volatile memory

5. Transmit data via Satellite
Transmit data via Geostationary satellites (GOES DCS in Western Hemisphere)

6. Transmit data via Satellite
Also, will operate with Eumetsat/Meteosat, Insat, …

7. Newest in a long line of Transmitters
Date
Model
Number
1980
8004
1988
9000
1990
8200
1996
8210
7000
2001
SL1
1000
2004
SL2
15000
2010
SL2V2
5000
2016
SL3

8. SatLink3 Improvements
SatLink3 does everything an SL2 did with the following enhancements:
Wi-Fi for operation with wireless devices
Expanded measurements from 16 to 32
Expanded SDI capacity with 2 independent SDI-12 inputs
Optional cell/Iridium modems for redundant 2- way communications
Expanded log from 120,000 to 1,000,000 readings
Improved analog accuracy & additional analog channels

9. SatLink3

10. SatLink3 Features Built-in
Removable Terminal Strips
Separate Power connector
2 Independent SDI-12 ports
2 Single Ended Analog
3 Differential Analog
High accuracy for strain gauges, thermocouples, RTDs etc.
1 4-20ma Analog
2 Frequency, Counter, Level Inputs (1 works with RMYoung wind monitor)
2 Digital Output
RS485
2 SW 12
Built-in Wi-Fi Access point
Optional Display
Satellite TX 1-10 watts
Optional Iridium
Optional Cell modem
USB Host for memory stick
USB OTG for PC
RS232 – for legacy systems or PC

11. SatLink 3 Block Diagram

12. Optional Communications
Iridium Satellite SBD – coming July 2016
Cellular communications: LTE (4G) – coming July 2016

13. How It Works
Automatically synchronizes internal clock to GPS to maintain time accurate to 100mS.
Measures sensors based on the user entered schedule.
Applies slope, offset, or special calculation as needed.
Stores the data in non-volatile flash memory.
Transmits data at the user entered scheduled time or based on alarms.
Maintains status and diagnostic information on measurements, transmissions.

14. SatLink Status LED Lights
Description
Left/Top LED
Right/Bottom LED
Button
Unit is operating properly
Green blink every 5 seconds
Unit has a Setup or operating error
Red blink every 4 seconds
WiFi turned on but no active connection
Blue blink every 4 sec or fast flashing blue
Active WiFi Connection
Solid Blue
Transmitting
Power Fail Imminent
Red flash 9Hz
Unit is in Test mode
Green blink every second
Red blink every second

15. LinkComm v3 – “Common Communicator”
LinkComm can connect to SatLink3 via WiFi, RS232, or USB
Setup the station
View live reading
View/download logged readings
View diagnostics/status
Calibrate sensors
Works with ipad, iphone, Android, Windows XP, 7, 8, 10

16. Getting Started: Install LinkComm
Android: Download/install from GooglePlay
IOS: Download/install from iTunes
Windows: Download/install from Sutron
software/ Or
If your PC is running windows 7, you will need to install the USB drivers after installing LinkComm. Note: this is not needed for Windows 8 and beyond.

17. Getting Started: Connect to Station
If you are using WiFi, use your device settings to select the Satlink3 WiFi.
The access point name will be Satlink3_stationname_xxxx otherwise, connect your USB cable to Satlink3
Note: RS232 will work but it is much slower than USB.
Run LinkComm
Select desired station on left or press + to create a new station.
If creating a new station, enter the station name, and station type
Select/Confirm Connect type and press Connect.

18. LinkComm v3 – Station Management
First screen you see
Remembers station definitions
Automatic saves
Station type
Satlink3, Xlink
Future: SL2, 9210, Xpert, 8310
Connection Settings
USB, RS232
Station WiFi
Enhanced setup data
Site notes
Site pictures
use device camera to capture pictures of the site

19. LinkComm v3 – Dashboard Tab
First screen after “Connect”
View station’s current state
Current status
Current measurement values
Graphs of recent values (1 week)
Sync button in header
Setup in sync and recording ON
Setup has changed
Recording is OFF
Connect button in header
Buttons to “Refresh Status”, “Clear Data”, and “Show Details”

20. LinkComm v3 – Measurements Tab
Define configuration and meta data for each measurement
Select measurement in left pane
Sensor templates
Default configuration
Sensor image
Wiring diagram
View last reading/force measurement
Custom sensor image
Custom wiring diagram

21. LinkComm v3 – Data Tab Zoom-in by click-and drag
Zoom-out by double-tap/click
Check to show/hide data sets
Right-click (or touch) graph for menu options to
Select/deselect all series
Show points
Shows recent data by default
Save/Share File…
Save/Share Image…

22. LinkComm v3 – Telemetry Tab
Telemetry Setup
Schedule – time, interval
Setup – type, ID, Channel, Format
Antenna – yagi, dome, omni
Append options
Telemetry status

23. LinkComm v3 – Telemetry Tab Controls

24. LinkComm v3 – GPS tab GPS Status and Signal Strength Graph
Start Sync Control
Local time offset

25. LinkComm v3 – Other Setup
Logs at 23:59:59 battery voltage and communications statistics
--not yet implemented

26. LinkComm v3 – Diagnostics Tab
Firmware Versions
Firmware Diagnostics
Recent asserts and exceptions
LinkComm data usage
LinkComm version
Options to
Save file to share with customer service
Terminal dialog (send commands)
Data Flow dialog (view data in hex)
SDI-12 dialog to send SDI-12 commands to sensors attached to station
Set Clock, Factory Defaults, Reboot

27. Working Disconnected vs. Connected
Working disconnected from SatLink allows you to create or modify a complete setup in your office and then transfer the new setup to the SatLink on the next site visit
This also works as a training tool to help you understand SatLink setups
Working connected allows you to change setup, take measurements, troubleshoot and see data.

28. Accessories: NEMA with 2 line display

29. Sutron Knows GOES! ISO 9001 Certified Designed by Sutron
Manufactured by Sutron
Supported by Sutron
3-year warranty

30. Benefits of SL3 with Iridium Communications
Ability to Increase Frequency of Transmissions for Event-Monitoring
- Use GOES most of the time then switch to IRIDIUM under alarm conditions
- If alarms are triggered, SL3 collects & transmits more data more often
Adds 2-Way Communication to Remote Stations Anywhere in the World
- Remote User Access - Users have the ability to change the setup or configuration remotely
- Improves Data Availability - Provides the ability to “ask” SL3 for data that may be missing to complete data records without gaps
- Reduces Maintenance Costs - Reduction of a single field visit alone can cover the annual Iridium service cost for most stations
Data Back-Up Using Redundant Transmissions & Communications
- Transmit via GOES and Iridium
IRIDIUM Port on SL3

31. Overview of Telemetry via Iridium
The Iridium® Global Satellite Constellation provides 2-way communications for remote stations anywhere in the world & delivers data how and when you want it. Since typical SBD messages range from 10 to 200 bytes, Iridium® is ideal for sending small amounts of data to and from extremely remote hydromet stations.
Periodic transmissions at user set times with data in user selectable format (pseudobinary B, C, SHEF & ASCII)
Transmission of alarm messages at the time they are triggered by an event
Diagnostics to track amount of data being sent & performance of telemetry
IRIDIUM® stations are Alert compatible via SutronWIN
Supports remote data collection, maintenance or control of 2 on/off devices
Optional authentication of incoming messages to ensure trusted source
Sutron is an authorized IRIDIUM® Valued Added Reseller.
IRIDIUM Card

32. Python Programming What is Python? What are the benefits of Python?
Python is a high level high-level programming language allowing users to write general purpose scripts to fulfill custom functionality. MicroPython is a light version of Python tailored for embedded microcontrollers systems such as the Sutron SatLink3, logging transmitter. For simplicity, this tech note refers to MicroPython simply as Python.
What are the benefits of Python?
Improved connectivity: Extends SatLink3 connectivity beyond standard sensor configurations and data formats.
Customized behavior: Enables application specific behaviors such as event triggered sampling and adaptable transmissions.
Community support: Leverages a powerful and popular scripting language, easy to learn with extensive support.
Fast solutions: Customized solutions may now be crafted quickly and completely by the customer without waiting for added product functionality to be released.

33. Python Programming Use Cases:
User defined custom measurement processing (ex: custom rating tables)
Event triggered stand-alone scripts (on boot, on connect, scheduled time, alarm, etc..)
Allows total of 8 individually configured script tasks, (ex: update an RS232 display on set schedule, change setup to measure and transmit more frequently)
Custom transmit format – define and implement format to fit server requirements
Custom support for RS485 or RS232 devices – easily overcome missing built-in support by creating interface plug-in for standard measurement or a script task
Make quick changes or write short scripts directly in Linkcomm
Integrated PyCharm editor for longer scripts or for support with built in SL3 functions
Script storage space up to 1MByte
RAM storage space of .5MByte available to hold a compiled script and variables
LinkComm Python interface 

34. Python Programming What is PyCharm?
LinkComm allows a user to connect to a SatLink3 device and to write and execute short scripts. For longer scripts, an Integrated Development Environment such as PyCharm may be used to edit, simulate, and debug scripts offline on a PC or it can run a script on the device. An advanced IDE such as PyCharm provides numerous productivity tools such as syntax checking, command completion, and context sensitive help. 
 PyCharm Editor