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Adcon A725 addSDI User Manual

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A725 addSDI
User Manual
SMART WIRELESS SOLUTIONS

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Summary of Contents for Adcon A725 addSDI

  • Page 1 A725 addSDI User Manual SMART WIRELESS SOLUTIONS...
  • Page 2 Adcon Telemetry. This publication is intended only to assist the reader in the use of the product. Adcon Telemetry shall not be liable for any loss or damage arising from the use of any information in this publica- tion, or any error or omission in such information, or any incorrect use of the product.

  • Page 3: Table Of Contents

    CHAPTER About the A725 addSDI___________________________________________________3 Conventions _____________________________________________________________4 Opening the packages ____________________________________________________5 Installing the RTU ________________________________________________________6 Field Installation_______________________________________________________7 More about the LED tool _______________________________________________8 Configuring an addSDI RTU in the addVANTAGE software__________________9 Maintaining and servicing the RTU__________________________________________9 The RTU battery _______________________________________________________9 Changing the battery ________________________________________________ 10 Understanding connectors_______________________________________________ 14 The POWER Connector ______________________________________________ 14...
  • Page 4 CHAPTER...

  • Page 5: About The A725 Addsdi

    CHAPTER 1 About the A725 addSDI Chapter 1. Introduction This manual explains the hardware aspects of Adcon’s A725 addSDI Remote Telemetry Units, including installation issues and certain parameter configurations. The manual is divided as follows: • "Introduction," which contains some general information and document conventions.

  • Page 6: Conventions

    The A725 is a ruggedized unit, complying with the IP65 environ- mental protection class (NEMA 4). It can easily be installed and it integrates perfectly into an Adcon A733 network. Depending on the terrain, it assures a reliable wireless connection to an A733 series device to distances up to 1000 meters, under favorable con- ditions even more.

  • Page 7: Opening The Packages

    Chapter 2. Using the addSDI The A725 addSDI Remote Telemetry Unit (RTU) is part of the A7xx series. For testing purposes, you should have an A840 Telemetry Gateway installed before you install the A725 RTU. For informa- tion about installing the A840, refer to the Base Station, Telemetry Gateway A840 and Wireless Modem A440 User Guide .

  • Page 8: Installing The Rtu

    CHAPTER 2 Using the addSDI Figure 1 shows the front view of an addSDI RTU. Gore Prevent SDI-12 Solar Connector Panel Figure 1. addSDI RTU WARNING Do not turn or manipulate the Gore Prevent element! The unit’s IP65 environmental protection may be affected. Installing the RTU The following restrictions apply: •...

  • Page 9: Field Installation

    CHAPTER 2 Installing the RTU • As with all wireless communication devices, the higher the transmitter is installed, the better the communication will be. Field Installation Installing addSDI RTUs in the field is a fairly simple process. You can perform a connectivity check with a LED tool. The LED tool is shown in Figure 2.

  • Page 10: More About The Led Tool

    RTU, but be sure that the RTU does not shadow the panel. Fasten the addSDI RTU to the top of the mast using another pipe clamp. Adcon recommends that you perform another connectivity test, if you can, to check the positioning of the device.

  • Page 11: Configuring An Addsdi Rtu In The Addvantage Software

    CHAPTER 2 Maintaining and servicing the RTU 5.6 volts but over 5.2 volts)—this is called the misery state. In this state, an addSDI RTU reduces its activities to a minimum. The radio unit is switched off, the sensor sampling ceases, and no data is stored in the internal memory.
  • Page 12 Adcon highly recommends you to take good care of your solar panels! Clean them frequently with a damp cloth. Rain droplets might splash thin layers of soil onto the panels, wind and spraying covers them with dust, birds tend to drop “things”...

  • Page 13: Changing The Battery

    CHAPTER 2 Maintaining and servicing the RTU Changing the battery If you have verified that the battery needs to be replaced, follow these steps to do so: Open the lid by unscrewing the four screws in the corners of the addSDI RTU, then remove the lid as shown in Figure 3. Figure 3.
  • Page 14 A725 battery pack inside the RTU. Figure 5. A725 Battery Pack Remove the battery pack and replace it with a new one (obtainable from your Adcon dealer). Put the metal cover back in place and secure it with the two screws.
  • Page 15 To configure the RTU you need a special serial adapter cable (item 200.720.540; not included with the RTU; available from your Adcon distributor). CAUTION Do not try to configure your addSDI devices if you are not well familiar with the SDI-12 commands and bus architecture —the unit may not communicate properly with the SDI-12 sensors...

  • Page 16: Understanding Connectors

    The serial line is 3-volt CMOS compatible; therefore, the above mentioned adapter cable must be used to reach the RS- 232 levels (Adcon item number 200.720.540). You might want to use the POWER connector with something other than the standard configuration. For example, if you want to connect an external battery to the RTU, disconnect the internal battery and use the configuration shown in Figure 7.

  • Page 17: The Sdi Connector

    And if you want to use an external battery, charged by its own solar panel, you need to disconnect the internal the internal bat- tery and the Adcon solar panel and use the wiring as shown in Figure 9. Short...
  • Page 18 This will occurr when the total power draw on the SDI-12 bus goes beyond 500mA. In case of doubt or questions please consult your sensor supplier or your Adcon dealer. Note: Please see also SDI-12 spec for additional wiring and setup information.

  • Page 19: Sdi-12 Sensor Connections

    CHAPTER 3 SDI-12 Sensor Connections SDI-12 Sensor Connections Sensor powered by RTU To connect a single SDI-12 sensor, that does not have it’s own power supply, follow the wiring scheme as shown in Figure 11. SDI GND Detection Jumper SDI Sense SDI DATA SDI POWER gray...

  • Page 20: Multiple Sensors Connected To The Sdi-12 Bus

    CHAPTER 3 Performing Advanced Functions SDI GND Detection Jumper SDI Sense SDI DATA SDI POWER green gray SDI GND yellow SDI DATA SDI−12 SENSOR self powered Figure 12. Single Sensor Connection, for sensor with internal battery pack Multiple Sensors connected to the SDI-12 bus Multiple sensors can be connected to the SDI-12 bus as long as the following conditions are met: the maximum total (!) current consumption (500mA) is not...

  • Page 21: Communicating With The Rtu

    Please disconnect the SDI connector, when attempting to configure the A725 RTU via the A720SC serial cable. You will not be able to communicate with your A725 addSDI RTU as long as the SDI connector is plugged in. You can use a Windows Hyperterminal window to connect to the addSDI RTU.

  • Page 22: Serial Communication Protocol

    CHAPTER 3 Performing Advanced Functions Select OK to open the terminal window. Press Enter to generate a response in the window. Serial communication protocol This protocol is based on a master sending commands and a node answering. The whole communication is conducted in plain ASCII strings.

  • Page 23: Using Terminal Commands

    (#) no other characters are allowed. Using terminal commands The A725 addSDI firmware is basically the same as used with the A723 addIT, except for the following items: • new device type: A725 •...
  • Page 24 CHAPTER 3 Performing Advanced Functions REMOTE XAMPLE CMDS 15535 CMDS CMDS ID PMP RSSI TIME FREQ SLOT DATA INFO RX TX FDEV 0 TIME Sets/returns the real time clock. ESCRIPTION The actual time, or none in the GET version. ARAMETERS The actual time as dd/mm/yyyy hh:mm:ss.
  • Page 25 CHAPTER 3 Using terminal commands FREQ 15535 FREQ 433925000 25000 0 RSSI Sets/returns the Relative Signal Strength Indicator threshold at ESCRIPTION which the RF receiver must wake up. The threshold value. For the A725, it can take values from 0 to ARAMETERS 255;...
  • Page 26 CHAPTER 3 Performing Advanced Functions 4557 ID 4557 0 SLOT CAUTION Changing these parameters may adversely affect the ability of the device to operate for extended periods under low sun shine conditions. Sets/returns the node’s sampling interval and rate. ESCRIPTION The interval (60 - 65535) and rate (0 - 255).
  • Page 27 CHAPTER 3 Using terminal commands GET/SET. REMARKS Yes, SET only. REMOTE XAMPLE PMP 65 72 15535 PMP 0 15535 PMP 65 72 0 DATA Returns data stored for a certain device. ESCRIPTION Note: This command cannot be used to retrieve data from the SDI-12 subsystem.
  • Page 28 CHAPTER 3 Performing Advanced Functions • si is the size of the frame • ft is the frame type (39 for the A725) • d1 d2 ... dn are the data values (the frame content) • cs is a 16-bit checksum obtained by summing the bytes and discarding the carries over 0xFFFF The A725 devices always responds with a type 39 data frame.
  • Page 29 CHAPTER 3 Using terminal commands Notice that if you need to get data that is not the last (newest) slot remotely from a device, the ID must be supplied twice. If you need to get the last slot stored, you can ignore the ID and the date/time parameters: 9999 DATA 9999 DATA...
  • Page 30 CHAPTER 3 Performing Advanced Functions • 0 – 16 Kbytes (e.g. model 25128) • 1 – 32 Kbytes (e.g. model 25256) Nothing. ETURNS SET only. EMARKS Yes, SET only. EMOTE XAMPLE FDEV 1 15535 FDEV 0 INFO Returns various status information. ESCRIPTION None.
  • Page 31 CHAPTER 3 Using terminal commands (charge/discharge). To compute the actual value (in °C), the following equation must be used: internalTemp 400 ⋅ ------------------------------------------------ - 68 – Temp °C • days_uptime in days; together with hr:min_uptime, it represents the amount of time the device is up without a reset or watchdog •...
  • Page 32 CHAPTER 3 Performing Advanced Functions XAMPLE INFO 15535 INFO 0 84 13/12/2006 20:02:29 2.10 2 0 0 85 59 0 3:52 42 65 72 12 60 1 0 Switches the unit to permanent receive mode (for tuning pur- ESCRIPTION poses). None.
  • Page 33 CHAPTER 3 Using terminal commands TX 5 15535 TX 0 Sends a broadcast frame. ESCRIPTION None. ARAMETERS A data block. ETURNS After the device has sent the broadcast frame, it will listen for EMARKS answers. All valid answers will be listed with their IDs. Yes.
  • Page 34 CHAPTER 3 Performing Advanced Functions Requests the firmware version of the device. ESCRIPTION None. ARAMETERS The current version. ETURNS GET only. EMARKS EMOTE XAMPLE 15535 VER 2.14.0 0 A complex command that can be used to check the status of the ESCRIPTION SDI-12 subsystem, as well as configure it.
  • Page 35 CHAPTER 3 Using terminal commands the SDI-12 allowable characters 0..31, 127..255) are substituted with an underscore (_). The arguments are the same as in sdi - command. • sdi ! resets the SDI-12 configuration. All previous entries are deleted from the configuration table. •...
  • Page 36 CHAPTER 3 Performing Advanced Functions SET/GET. EMARKS Yes. EMOTE Initiate a “discovery“command XAMPLE #sdi * #sdi 35385 sdi awmvD 0 0 Discovery is pending (D). Detach A720SC Serial Cable and attach SDI-12 bus and wait for at least 1 minute; the bus will be scanned. Detach the SDI-12 bus, wait 2s and attach A720SC again.
  • Page 37 CHAPTER 3 Using terminal commands The date/time specifies the first slot to be retrieved that is strictly “younger” than the specified time stamp. The data block returned will typically contain a number of data ETURNS frames. The structure of a block is as follows: dd mm yyyy hh mm ss si ft rfin rfout db batt sdih sdib1 sdib2 ...
  • Page 38 CHAPTER 3 Performing Advanced Functions SDI count SDI offset SDI available SDI address SDI method SDI value #1 SDI index SDI value (floating point) SDI address SDI method SDI value #2... SDI index SDI value (floating point) SDI address SDI method SDI value #n SDI index SDI value (floating point)

  • Page 39: Returned Errors List

    CHAPTER 3 Returned errors list Yes. EMOTE XAMPLE #12800 datasdi 12800 datasdi 16 5 2003 20 14 49 44 60 255 255 127 87 9 0 9 3 0 0 74.379401 3 0 1 68.117003 3 0 2 58.832397 3 0 3 51.611795 3 0 4 38.346400 3 0 5 19.800799 3 0 6 14.895999 3 0 7 3.553500 3 0 8 0.037200 2953 0 Sets/returns the maximum delay for waiting awake (i.e.

  • Page 40: Command Line Interpreter

    CHAPTER 3 Performing Advanced Functions Command line interpreter • 1 — command not recognized (=it doesn’t exist or isn’t supported) • 2 — command line buffer overflow (input line too long) • 3 — internal error • 4 — reserved •...
  • Page 41 CHAPTER 3 Returned errors list • 36 — receiver busy (for example, just executing a polling series) • 37 — time stamp of a frame is too far in the future • 38 — general modem error...

  • Page 42: Specifications

    Appendix. Specifications The A725 addSWITCH was built to match the specification of the ETSI 300 220, Class I, Subclasses a and b, but other national norms are similar to this (for example, the CFR 47, Part 90, Subpart J). Table 2 shows the main operational parameters of the A725. Table 2.
  • Page 43 Table 2. Operational Parameters (Continued) Parameter Unit Sensitivity (10 db S/N) -105 Image Frequency Attenuation (1st IF = 45 MHz) Local Oscillator Leakage Adjacent Channel Attenuation RSSI Dynamic Operating Current (incl. onboard microcontroller) Transmitter (all measurements made on a 50 Ohm resistive load) Output Power Spurious Radiation (0 to 862 MHz)

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