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PDAS-III (rev H) - AMASS Data Technologies Inc

1. PSE or PSE D Note that these options refer to a PSE SDI D mounted into the same casing as the logger and set to address A2 and that any external SDI 12 sensor set to address A2 may also be configured as internal refer to the paragraphs on the Sensor Command in 5 3 Main Menu SENSOR LOG TABLE Conversely the built in shaft encoder must not be changed to an address other than A2 if it is to be configured as internal 5 6 Main Menu SYSTEM SETUP 5 39 Selection 3 Temperature Units is used for configuring the internal temperature input that is available to all PDAS III units due to the on board AIS see 5 3 2 INTERNAL ANALOG SENSORS Selections 4 and 5 reset the event counter counts to zero PDAS III only gt 2 Logger Setup displays the following menu LOGGER SETUP FUNCTIONS 0 BootSirap Loader 1 View Data Period 2 Change PASSWORD 3 Sw 12V ON Delay M Main Menu Selection 0 BootStrap Loader displays the BOOT LOADER menu as described in section 4 2 SOFTWARE UPGRADES Selection 1 View Data Period is to set the time period for the VIEW DATA facility For example if the user wishes to change the period from 5 to 10 seconds enter the following 1 lt CR gt Enter View Data Period 1 60 sec 5 10 lt CR gt Enter View Data Period 1 60 sec 10 lt CR gt Sensor data would now be sampled and displayed with the VIEW DATA facility at the rate of onc
2. The PSE D option comprises an 8 digit display and two double position switches that control the display and setup of parameters The setup parameters are only accessible however once the correct password has been entered The front of the unit appears as in Fig 1 123 456 Selection switch A Select 8 Digit Display EDIT switch Figure 1 Front panel of PSE D models The four switch positions allow the user to display the current fluid level as well as setup the following parameters the encoder offset and scale the node address for SDI 12 communications and the averaging parameters as per section Set Averaging Parameters in the PSE SDI user manual The right switch is used to select the parameter to be displayed and or altered It is also used as an enter key to set the new values of setup parameters and as an on switch for the display The left switch allows the user to EDIT the value displayed at the screen The lower position of this switch is labeled with a right arrow and is used to select the digit that is to be edited the active digit is the one flashing on the screen The upper position which is labelled with an up arrow edits the active digit by scrolling through the available options 0 1 2 3 4 5 6 7 8 9 Note that when entering values for the offset and scale the decimal point must be entered as these parameters are floating point variables The or sign must also be entered
3. NOTE The user has the option of disabling the ENTRY level password by setting it to a single spacebar character The passwords are set from the SYSTEM SETUP submenu see 5 6 The only options available to the user at this point are items 2 and 4 The other options are only accessible once the PROGRAM password is entered as such Enter PROGRAM Password MODIFY Note that the default password in this case is MODIFY The PROGRAM password gives the user unrestricted access with respect to configuring or modifying any parameters whereas the ENTRY password enables only viewing and downloading of the log file In order to terminate the higher level of access PROGRAM the user must select 7 exit from the main menu The ENTRY password may then be reentered in order to proceed with viewing or downloading data Note that to change the password the user must select item 6 as described in 5 6 Main Menu SYSTEM SETUP Each of the options of the Main Menu presents a sub menu to perform desired actions which are described in more detail in the following sections 5 MENU TREE REFERENCE 5 3 gt Item 1 SET DATE amp TIME allows the user to set the date and time of the logger for modem based units section 5 1 Main Menu SET DATE AND TIME For loggers with GOES option HDR this menu item appears as 1 CS HDR GOES SETUP for configuring the GOES system sections 5 1 1 gt With item
4. PASSWORD appears Push switch to Set On The default password appears 000 Enter the correct password then press Set On Push Select until NODE ADR appears Push Set On The current node address appears Make changes with the EDIT switch and accept the new value with Set on OR cancel your changes by pushing Select 3 BUS PROTOCOLS 2 3 3 BUS PROTOCOLS 3 1 DAS Communications Protocol All information that is relayed between the host PC automatic data collection system etc and PDAS loggers is accomplished by means of the DAS communications protocol This protocol results in messages being transferred in a RS232 data stream and uses relaxed timing and no break handling Each command or response is simply terminated with the carriage return character When operating the PDAS however the details of the protocol are far removed from the user as this product is menu driven which allows one to interact in a user friendly manner without having to be concerned with details such as command syntax In order to communicate directly with SDI 12 sensors from the host i e the SDI 12 transparent mode the SDI 12 commands are basically encapsulated into the DAS protocol 3 2 SDI 12 Protocol The PDAS III in most versions supports one standard SDI 12 port port A and a pseudo SDI 12 port for supporting the AMASS DATA PRF Radio modem Contact AMASS DATA with the software version number of your unit to confirm how many sta
5. S For example assume the AMASS Data PAIM Analog Input Module is configured to address AO and is powered by the switched 12V port 3 lt CR gt Enter SDI Command String A a Command parameters SAOI lt CR gt 013 AMASS Data PAIM137 lt CR gt When communicating with sensors the PDAS will display an error message in the event that a proper response was not received Refer to APPENDIX A for a listing of these error messages The SDI 12 transparent mode session is terminated by simply pressing lt CR gt gt Select 4 Communications to configure the communications as such 4 lt CR gt Select Communications Port 0 Programmer Port 1 Modem Port 2 SDI 12 Ports A 3 SDI 12 Ports B 0 lt CR gt Set Prog Port Baud Rate 0 300 Baud 1 1200 Baud 2 2400 Baud 3 9600 Baud 5 6 1 Modem Configuration 5 41 4 38400 Baud 3 lt CR gt By selecting 0 Programmer Port the user was able to change the baud rate of the programming port from the default value of 38400 to 19200 Note that such a change in the baud rate would require the user to modify the settings of the terminal emulator accordingly To do this using Hyperterminal simply click on File then Properties then Configure Change the baud rate and click OK Now click on Disconnect and Connect so that your changes take effect Note that 4 Communications also allows the user to change the baud rate of SDI 12 ports within the range of 300 to 19200
6. aS6 Response a lt data buffer gt lt cr gt lt lf gt Set Commands 1 Set encoder offset e command aSO lt offset gt Response a lt cr gt lt lf gt Set encoder scale units per revolution e command aS1l lt scale gt Response a lt cr gt lt lf gt Set Scale of the Event Counter e command aS3 lt scale gt Response a lt cr gt lt lf gt Set Mode of Event Counter e command aS2 lt mode gt See App D for modes e Response a lt cr gt lt lf gt Reset Event Counter e command aS5 Response a lt cr gt lt lf gt Set averaging parameters e command aS6 lt sampling period gt lt number of samples gt e response a lt cr gt lt lf gt App C APPENDIX C PDAS Data formats The PDAS supports three data formats in its log file Environment Canada Sequential Environment Canada Tabular comma delimited and our standard Tabular formats The standard Tabular format is configurable in that its column delimiters are user definable NOTE only the comma and lt TAB gt delimiters are recognized by the AMASSER Grapher graphing utility The data format in use is user selectable using 6 System Setup gt 0 Log File Functions All subsequent data retrievals from the menu system will conform to the chosen format Alternatively the user can employ the LOG RETRIEVAL BY NUMBER COMMAND p 7 4 or the LOG RETRIEVAL BY DATE COMMAND p 7 5 to override the current settings and to download dat
7. 23 39 do No actions 1 0 1A2M0 1 WV No Alarm Functions 2 0 1A1M0 1 HG gt 23 40 do Noactions lt 23 39 do E0 D2 D1 3 0 No Alarm Functions As shown in the Sensor Alarm Table above the following actions would take place e Slots 1 and 2 would be enabled when the stage attains the value of 23 40 e Slot 0 would be disabled simultaneously as slot 1 and 2 are enabled e When the stage drops below 23 39 slot 0 becomes enabled as slot 2 and 1 are disabled 5 36 5 5 Main Menu SENSOR ALARM TABLE In order for the new logging rate to be carried out when slot 2 is enabled the user must specify sampling and logging rates within the SENSOR LOG TABLE as explained in section 5 3 Main Menu SENSOR LOG TABLE For example the Sensor Log Table could look like this Slot Log Sensor Sampling Start B Logging Min Max MM No Enable Command Label Rate Time Av Cap Rate Rate Time Sn a ss et SE 0 0 1A1M0 1 HG 00 01 00 12 33 00 l 00 15 02 00 23 59 1 0 1A2M0 1 WV 00 01 00 12 35 00 l 00 15 00 00 hh mm 2 0 1A1M0 1 HG 00 01 00 00 00 00 l 00 05 01 00 00 00 15 0 00 00 00 hh mm ss 1 00 00 00 00 hh mm NOTE The Start Time for a slot that is to be triggered by an alarm must be specified as 00 00 00 as shown above for slot 2 5 6 Main Menu SYSTEM SETUP 5 6 Main Menu SYSTEM SETUP This selection requires PROGRAM password clearance see section 5 MENU TREE REFERENCE Item 6 SYSTEM SETUP of the Main Menu displays the following s
8. AIN4 on the detachable terminal trip The terminal labeled SP CH is channel 5 0 20V input for use with a solar panel or other device requiring such an input Note that these represent the default values which may be changed from System Setup gt Sensor Setup gt External A D Channels A D MEASUREMENT COMMAND command MA lt CR gt where analog input to measure response lt converted value gt The analog inputs are assigned as follows PDAS III only Table 4 Analog Inputs of the PDAS III rev E Input Analog Input 1 4 User configurable SEE ABOVE 5 0 20V Ext Voltage for solar panel or 9V bat PSE D option 6 Lithium Battery 0 5V input 7 Main Voltage 0 20V voltage input 8 Internal Temperature 0 2 5V input Example Determine the Main Voltage channel 7 Command MA7 lt CR gt Response 12 121 7 DIRECT COMMUNICATIONS COMMANDS 7 2 EVENT COUNTER MEASUREMENT COMMAND command ME lt CR gt where event counter input to measure 1 or 2 response lt event counter value gt Example Assume a tipping bucket is connected to event counter 1 Read the total rainfall using a Direct Command as follows Command ME1 lt CR gt Response 2 50 The remaining commands are most useful when accessing the logger using a computer with a dial up program which will automatically send and receive data in order to download the log file If such is the case the host computer need not enter the menu system but
9. Address A 0 9 or B 0 9 AO lt CR gt Enter SDI 12 Command M 0 9 or R 0 9 or C 0 9 Enter the required SDI 12 command MO lt CR w q Enter SDI 12 Command M 0 9 or R 0 9 or C 0 9 MO lt CR gt Enter Number of Data Values to be Logged 0 Enter 2 because two slots are required 2 lt CR gt f Enter Number of Data Values to be Logged 2 to log te msianianeous cee max min and the average lt CR gt Enter Value Position 1 9 0 1 lt CR gt t Enter 1 because we are logging the Enter Value Position 1 9 1 first data value returned by the lt CR gt command in this example Sensor label HG lt CR gt Sensor label HG Enter a label Here HG lt CR gt Sampling Interval hh mm ss 00 00 00 00 05 00 lt CR gt lt __________ _ __ A sampling interval of 5 minutes Sampling Interval hh mm ss 00 05 00 was entered lt CR gt Select Log Data Function 0 0 Instantaneous 1 Block Averaged wd 2 Block Capture Max 60 samples The number of samples to be logged is 12 3 Block Log Max 60 samples With a sampling rate of 5 minutes and 4 Block Total logging rate of once per hour the maximum 3 lt CR gt eee number of samples is 12 Enter Number of Samples 1 12 lt CR Logging Ee SS A logging interval of 1 hour was entered 01 00 lt CR gt Logging Interval hh mm 01 00 lt CR gt MinMax Log Interval hh mm 00 00 01 00 lt CR gt MinMax Log Interval hh mm 01 00 lt CR gt Sel
10. Oldest reading 0 Error Flag 0 gt Selection 1 Retrieve No of records is as follows 1 lt CR gt UPLOAD Number of Records xxxx 12 lt CR gt AMASS Data Technologies Inc PDAS Firmware c William P Thomas 1996 97 98 DATE 2001 08 11 TIME 14 52 32 UNIT ID NO T359478 SITE DESCRIPTION BILL S HOBBIT HOLE 2001 08 11 VB 0 000 12 30 00 HG 0 000 12 33 00 wv 0 000 12 35 00 QR 0 000 12 36 00 VB 0 000 13 30 00 HG 0 000 13 33 00 wv 0 000 13 35 00 QR 0 000 13 36 00 VB 0 000 14 30 00 HG 0 000 14 33 00 wv 0 000 14 35 00 QR 0 000 14 36 00 Note that this is the Environment Canada Sequential format In fact the PDAS logger supports three data formats which are user selectable from System Setup gt Log File Functions gt Log File Format refer to Log File Functions of 5 6 Main Menu SYSTEM SETUP The data formats are Tabular Environment Canada Tabular comma delimited and Environment Canada Sequential The data formats are shown in APPENDIX E PDAS DATA FORMATS Also refer to sections LOG RETRIEVAL BY NUMBER COMMAND and LOG RETRIEVAL BY DATE COMMAND Note that the log entries shown above correspond to the example Sensor Log Table displayed in section 5 3 data of 0 000 was used for simplicity e The SDI 12 parameter HG was logged at 1 hour intervals as requested 12 33 00 13 33 00 14 33 00 etc 5 4 Main Menu LOG FILE RETRIEVAL 5 32 e The SD
11. USER HAS THE OPTION OF INVOKING OR NOT INVOKING THE FILTER AT THE TIME OF DOWNLOAD SEE 5 4 Main Menu LOG FILE RETRIEVAL 5 Date Format mm dd yyyy specifies the current date format for data downloads Two formats are available yyyy mm dd and mm dd yyyy Selecting 5 toggles between these two date formats 6 Flash Data Overwrite Enable indicates that the flash memory is configured as a circular buffer for the log records that is once full the newest records overwrite the oldest ones a per section 5 4 Main Menu LOG FILE RETRIEVAL Select 6 Flash Data Overwrite to disable this feature that is stop logging when the memory is full Selecting 6 Flash Data Overwrite toggles between these two options Here again is the SYSTEM SETUP submenu SYSTEM SETUP FUNCTIONS 0 Log File Functions 1 Sensor Setup 2 Logger Setup 3 Transparent SDI Mode 4 Communications M Main Menu gt Select 1 Sensor Setup to configure the AIS and internal sensors as follows SELECT SENSOR TYPE 1 External A D Channels 2 PSE Encoder 3 Temperature Units 4 Reset Event 1 5 Reset Event 2 M Main Menu Selection 1 External A D Channels is for configuring the Analog Input System AIS This is explained in section 5 6 2 ANALOG SENSOR SETUP PDAS II only Selection 2 PSE Encoder may or may not appear depending on the software in use When present it is used for configuring the built in shaft encoder included with options
12. a software reset This clears the data space of the RAM ONLY DO THIS AFTER LOADING NEW FIRMWARE or as instructed by AMASS Data when firmware upgrades are delivered NOTE Selecting 3 FIRST TIME INITIALIZE will erase the entire configuration of the logger eg logging rates sensor set up Logged data is unaffected gt Selection 4 START LOGGER is used to resume normal operation of the logger Selecting launches the current program that is displayed in the BOOT LOADER menu that is either A or B The BOOT LOADER MENU is also accessible from the SYSTEM SETUP menu see sect 5 6 4 3 HOW TO 4 5 43 HOWTO 4 3 1 SETUP AN SDI 12 SENSOR The PDAS II provides SDI 12 communications capability for connection to standard SDI 12 sensors SDI 12 sensors have three wires to be connected to the logger 12V ground and SDI 12 data The connections are made to the detachable terminal strip as shown in section 8 3 Once connected the user can verify that communications between the sensor and logger are sound Simply enter the correct password AMASSER to the menu see section 5 on page5 2 and select 6 System Setup gt 3 Transparent SDI 12 mode The user must refer to the command set that is listed for that sensor in its user reference manual Then type a command such as Enter SDI Command String A a Command parameters Assuming the sensor is connected to A I lt CR gt channel A the SDI 12 command m
13. labeled A and B Therefore two programs may be stored in these loggers at any given time You may for example have been running program A at the time the new software is to be loaded into the logger You may then opt to load the new software into B so that if a problem occurs you may revert to program A Memory space selection is accomplished from the BOOT LOADER menu 1 Begin by selecting the memory space that you want to load into Do this by pressing 0 for 0 SELECT PROGRAM from the BOOT LOADER menu The active program or memory space is displayed and toggles between A and B 2 When the desired program is displayed A and B select 1 LOAD PROGRAM FILE 3 You are then prompted to erase the software in the current memory space before proceeding Type Y for Yes case sensitive 4 You are prompted to press Enter to proceed 5 You are then prompted Upload program now At this point the PDAS III is in receive mode DO NOT TYPE ANY CHARACTERS OR PRESS Enter If using Hyperterminal click on Transfer at the top of the window then click on Send Text File In the box labeled Files of Type select all files 4 3 HOW TO 4 3 Browse for the new software to be loaded into the logger These files always have the extension HEX Select the file then click on the OPEN button The file is now being transferred to
14. 0 15 3 lt CR gt SELECT SENSOR TYPE 0 Internal Sensor 1 SDI 12 Sensor S 12V Switched SDI 12 Sensor 1 lt CR gt Enter SDI 12 Port amp Address A 0 9 or B 0 9 A1l lt CR gt Enter SDI 12 Command M 0 9 or R 0 9 or C 0 9 MO lt CRs amp gt Sample parameter HG Enter Value Position 1 9 1 lt CR gt Sensor label QR lt CR gt Sampling Interval hh mm ss 00 15 00 lt CR gt Select Log Data Function 0 0 Instantaneous 1 Block Averaged 2 Block Capture Max 60 samples User accepts the current selection tt gan se ce Instantaneous by pressing Enter lt CR gt Select Sensor Equation Type 0 0 None 1 value Scale Offset 2 value Offset Scale xP Polynomial xU User Defined Select 1P to make the substitution x HG 5 xB Block Functions where x 0 10r2 A Scale of unity should be entered as 1 not 1 0 IP lt CR gt if the max calculate speed is to be accomplished Enter the value tor Seale 1 lt CR gt Enter the value for Offset The number of dec places of the Offset is best entered 5 000 lt CR gt ra as equal or greater than that of the incoming data See Enter the number of Coefficients note below 3 lt CR gt i 5 3 3 CONVERSION EQUATIONS 5 29 X XXX CONS tant or xx xx IlsF equation Enter Coefficient 1 C is the constant 8 71 8 71 lt CR gt x xxx constant or xx xx IsF equation Enter Coefficient 2 154
15. 0 7800 0 7800 which indicates that four readings have been loaded into the PDAS III GOES buffer 0 When this buffer is full 96 bytes maximum it is automatically loaded into the GOES transmitter buffer for transmission Note as well that the current contents of the GOES buffers are automatically loaded when the user disables the transmitter Note that the transmitter should be disabled prior to changing the Logging Rate of a sensor in the Sensor Log Table then re enable the transmitter once the changes have been made If this is not done the Logging Rate that appears in the header at the beginning of any given line may not correspond to all the entries in that line This is because the header displays information that was current when the Most Recent Entry took place For instance in the example above the Logging Rate was set to 15 minutes If this had been changed to 10 minutes when eight readings had already been loaded into the corresponding GOES buffer the header would display 10 not 15 minutes as such HG 2 10 0 6280 0 7293 0 7800 0 7800 0 7800 0 7800 0 7800 0 7800 0 7800 0 7800 0 7800 0 7800 sa YA 00 35 GMT The readings on the left occurred at 10 minute intervals but the remaining readings were logged at 15 minute intervals 00 25 GMT 25 GMT To avoid this confusion disable the transmitter when making changes to the Logging Rate then re enable it 7 DIRECT COMMUNICATIONS COMMANDS 6 3 7 DIRECT COMMUNICATIONS COM
16. 1 However the PDAS III does provide a means of setting the time manually see section 5 above prior to getting a GPS fix This is done prior to entering the Main Menu as follows NOTE that although the time may be set manually the SAT HDR must obtain a GPS fix prior to transmitting for the first time after power up The PDAS clock will synchronize to the SAT HDR clock one minute after each transmission The preferred method of setting the time is to wait for a GPS fix and synchronize the PDAS clock to the SAT HDR clock as described in section 5 1 1 1 5 1 1 Main Menu GOES CSHDR SETUP 5 5 5 1 1 Main Menu GOES CSHDR SETUP For models with GOES support for the CS SAT HDR transmitter the GOES CSHDR SETUP submenu allows the user to initialize as well as diagnose the GOES system All configurations of the GOES system are performed as described below NOTE When initially powering up the SAT HDR the status LED will display various colors in turn During this time the SAT HDR is either initializing or establishing a GPS fix Please see section 8 2 2 HDR Models or the SAT HDR manual for details By selecting item 1 GOES CSHDR SETUP from the Main Menu the user is presented with options with respect to configuring or viewing the current set up of the GOES system connected to the GOES Modem Port 1 lt CR gt GOES Transmitter CS HDR 0 Initialization 1 Diagnostics 2 Enable Transmitter 3 GOES Data Collection Disabled 4 Edit GOES Lo
17. 2 VIEW DATA the user can view the instantaneous value of sensor data in real time For example the instantaneous shaft position of an encoder or the current internal temperature may be displayed section 5 2 gt Item 3 SENSOR LOG TABLE is used to setup the logging schedules assigning sensors to log slots setting sampling rates and time intervals for both log entries and min max entries section 5 3 gt Item 4 LOG FILE RETRIEVAL allows the user to retrieve records from the log file based either on the number to be retrieved or the date of the oldest record section 5 4 gt Item 5 SENSOR ALARM TABLE is used to configure alarms section 5 5 gt Item 6 SYSTEM SETUP is for configuration of the Analog Input Subsystem and miscellaneous functions such as setting the passwords section 5 6 The menu system also features a communications watchdog The watchdog provides added security in the event that a user forgets to properly exit the menu system It uses a delay of about 7 minutes so that the user is automatically exited from the menu if he she has not made an entry in that period of time 5 1 Main Menu SET DATE AND TIME 5 4 5 1 Main Menu SET DATE AND TIME This selection requires PROGRAM password clearance see section 5 MENU TREE REFERENCE When the menu is initiated the introduction displays the product name and author as well as the current date and time unit ID number site description as well as GMT time and GOES
18. 2001 08 12 03 33 03 0 973 2001 08 12 04 33 03 0 973 A single character precedes the data for ea a i PE ae tM parameter HG because it is allocated to 2001 08 12 07 33 03 0 973 SANOT AIHA Ee Dh 2001 08 12 08 33 03 0 973 2001 08 12 09 33 03 0 973 Example 3 below shows a convenient alternative to the Environment Canada Tabular comma delimited format Note that the t flag always incorporates labels into EVERY record whereas the e flag does not in headings only This is an important distinction when considering that the labels that appear in the headings are only valid AT THE TIME OF DOWNLOAD Therefore these labels may not properly correspond with all downloaded data if the logger configuration was changed at some time since the last log file erasure However the labels that appear for every record ARE ALWAYS VALID Therefore the flag t is a logical alternative to the flag e Ex LD AMASSER t 2001 08 12 User specified that the character be AMASS Data Technologies Inc PDAS M 682 used as the column delimiter Firmware c William P Thomas 1996 97 98 99 2000 2001 DATE 2001 08 12 TIME 10 25 36 UNIT ID NO 01 SITE DESCRIPTION Utopia 05 DATE TIME LABEL HG VB 2001 08 12 00 30 05 VB 12 012 2001 08 12 00 33 03 HG 0 973 2001 08 12 01 30 05 VB 12 010 Two characters precede the data for 2001 08 12 01 33 03 HG 0 973 parameter VB because it is allocated to 20
19. BLOCK 5 21 xU User Defined xB Block Functions where x 0 10r2 lt CR gt al No conversion equation desired Current Time 12 32 00 Enter SAMPLING Start Time hh mm 00 00 00 12 33 00 lt CR gt Log slot 0 of the Sensor Log Table would be thus Slot Log Sensor Sampling Start IB Logging Min Max MM No Enable Command Label Rate Time Av Cap Rate Rate Time Log 1 0 07 VB 00 10 00 12 30 00 I 01 00 00 00 hh mm 2 0 1A2M0 1 WV 00 01 00 12 35 00 I 01 00 00 00 00 00 3 1 1A1M0 1 QR 00 15 00 12 36 00 I 01 00 00 00 hh mm Note that the column B20A indicates the type of logging taking place that is Block Average of 20 samples of data EXAMPLE 2 The user wishes to log blocks of data every 10 minutes Each block is to consist of 30 samples of data 1 second between samples gt gt 2 lt CR gt Add Edit Sensor Select Log Slot 0 15 0 lt CR gt refer t tion 5 3 Sample rate set to 1 seconds refer to section 3 Sampling Interval hh mm ss 00 00 00 00 00 01 lt CR gt Sampling Interval hh mm ss 00 00 01 lt CR gt Select Log Data Function 0 0 Instantaneous 1 Block Averaged wd 2 Block Capture Max 60 samples 3 Block Log Max 60 samples 4 Block Total e 3 lt CR gt Select Log Data Function 3 0 Instantaneous 1 Block Averaged wd 2 Block Capture Max 60 samples 3 Block Log Max 60 samples 4 Block Total lt CR gt Enter Number of Samples 00 30 lt CR gt lt lt Specify 30 sam
20. For example GOES INITIALIZATION 0 Set Date amp GMT Offset 1 Set GOES Platform Address Qe 2 Self timed Mode 3 Random Mode M Main Menu lt ESC gt lt CR gt GOES Transmitter CS HDR GOES Main Menu 0 Initialization 1 Diagnostics 2 Enable Transmitter 3 Goes Data Collection Disabled Current status of GOES transmissions Disabled See section 4 Edit GOES Log Functions 5 1 1 1 5 Display GOES Log Table 6 Xmit Random Message M Main Menu 5 1 1 Main Menu GOES CSHDR SETUP 5 6 The GOES Main Menu also allows the user to enable disable certain acquisitions from being transmitted by parameter and by occurrence For instance say parameters WV WV4 and WYVS are being logged at 15 minute intervals You may opt to 1 transmit all data from WV 2 not transmit ANY data from WV4 and 3 only transmit every other data for WV5 30 minute interval This is accomplished from the GOES Log Table selection 5 Display GOES Log Table from the GOES Main Menu and a parameter called LOG GOES RATIO It allows for better management of the outgoing data particularly in instances when the amount of data would otherwise surpass the constraints of the transmission window The user can also individually enable disable min max acquisitions Note that all data whether selected for GOES telemetry or not is logged to the on board log file The GOES LOG TABLE also serves to select to which of the two transmitter buffers the data
21. Link Interleaver 2 0 None 1 Long 2 Short lt CR gt GOES INITIALIZATION 0 Set Date amp GMT Offset 1 Set GOES Platform Address 2 Self timed Mode 3 Random Mode M Main Menu The user must ensure that the GOES platform address and that the date and time are correct NOTE that the transmitter must now be rearmed in order for transmissions to take place This is done with 2 Enable Transmitter In addition the user would normally select 1 Diagnostics from the GOES Main Menu in order to establish the status of the transmitter set up Please refer 5 1 1 2 DIAGNOSTICS 5 1 1 Main Menu GOES CSHDR SETUP 5 11 5 1 1 2 DIAGNOSTICS The diagnostics capability of the PDAS is described here and represents the full extent of information that is accessible via the Aux Port of the SAT HDR Direct communication with the SAT HDR is accomplished with the DCPCOMM software that is provided with the unit This not only allows for full diagnostics of the transmitter but also to load new Operating Systems and configuration files via the SAT HDR Config Port seeFigure 5 PDAS III with PSE D and HDR options From the GOES main menu the user selects 1 Diagnostics in order to establish if the transmitter is set up as desired and that transmissions will take place as intended As explained previously the GOES main menu is obtained from the Main Menu by selecting 1 GOES CS HDR Setup as follows 1 lt CR gt GOES Transmitter CS
22. Log Slot Alarms M Main Menu UPPER gt 23 40 Actions LOWER Trip Value do E1 lt 23 39 No Alarm Functions No Alarm Functions No Alarm Functions Actions do D1 Note that the first four columns are identical as that in the Sensor Log Table In fact the Sensor Alarm Table is simply an extension of the Sensor Log Table The former displays the alarm functions if any that are configured for all sensors as defined in the rightmost four columns The columns entitled UPPER and LOWER Trip Value are used to define the values at which the alarms are to be activated see Figure 1 below whereas those entitled Actions are used to define what is to take place when either trip value is surpassed gt The user configures alarms with item 1 ADD EDIT Alarm Function To add an alarm to slot 0 as shown in the Sensor Alarm Table above proceed as follows 1 lt CR gt SENSOR SLOT ALLOCATION HG 0 WV 1 Select Log Slot 0 15 0 lt CR gt Enter UPPER Trip gt value 0 23 40 lt CR gt Enter UPPER Trip gt value 23 40 lt CR gt Enter Upper Trip Actions 4 max No Actions 0 No Action Proceed D Disable Log Slot E Enable Log Slot C Activate Control Response G Enable Random Goes Buffer E lt CR gt SENSOR SLOT ALLOCATION HG 0 WV 1 5 5 Main Menu SENSOR ALARM TABLE Select Log Slot 0 15 1 lt CR gt Enter Upper Trip Actions 4 max E1 0 No Action Proceed D Disable Log Slot E Enable Log S
23. Note that the latter is defaulted to the current SDI 12 standard of 1200 baud at time of printing and that such ability is incorporated simply to accommodate revisions to the protocol and is thus not meant to be changed until such a revision occurs Naturally in order to be compatible with SDI 12 sensors the baud rate must be consistent with the latest standard Please refer to the SDI 12 Support Group web site for the latest specification on the SDI 12 protocol at http www sdi 12 org 5 6 1 Modem Configuration PDAS loggers with MDM in the product name are equipped with a built in PMDM modem Configuration of the baud rate of the modem port and PMDM modem is accomplished via System Setup gt Communications gt Modem Port gt Baud Rate as shown below When the user selects to change the baud rate the PDAS attempts to reconfigure both the PMDM and the modem port of the logger Successful configuration of the PMDM is confirmed with a response from the PMDM which is typically as follows Amass Data PVMDM C182 03 If the configuration of the PMDM was NOT successful the PDAS logger will display this message Modem no response A communications breakdown between the PMDM and PDAS may be due to a mismatch of baud rates To resume communications perform a First Time Initialization of the PMDM to reset the baud rate to the default of 1200 NOTE A FIRST TIME INITIALIZATION OF THE PMDM RESETS ITS BAUD RATE TO THE DEFAULT OF 12
24. Processing allows the halt all sampling and logging By selecting this item the data processing is either Enabled or Disabled as displayed next to this menu item When data processing is disabled the Log Enable column is cleared i e all zero and sampling and logging will not resume until this menu item is selected to enable data processing When data processing is enabled from a disabled state new Start Times are calculated and sampling and logging resumes when these start times have been achieved 5 3 1 BLOCK 5 20 5 3 1 BLOCK FUNCTIONS As mentioned in the previous section the user has the option of logging instantaneous or blocks of data These blocks are defined by a number of samples as well as the sampling rate There are three options with respect to block logging Block Log Block Average Block Capture and Block Total Block Average logs the average value of the block of data to the log file See Example 1 below Also Block Average can provide vector averaging in applications where a sensor is measuring WIND DIRECTION see the example p 4 15 Block Log logs the block of data to the log file In order to achieve logging rates greater than once a minute the user must use the Block Log feature See Example 2 in this section Block Capture saves the block of data to the capture memory buffer This buffer only contains the most recent block The contents of the buffer may be viewed from VIEW DATA see sect
25. S1 for SDI 12 Sensors CR lt a SELECT SENSOR _ 1 2 3 or 4 Single Ended Ch 5 Aux 0 20 V 6 Lithium V 7 Main Pwr V 8 Internal Temp 9 Differential 1 2 10 Differential 3 4 11 Event 1 D 12 Event 2 D 13 PSE Encoder 14 PSE Event Cnt1 15 PSE Event Cnt2 Select the channel to which the sensor is connected 1 1 lt CR gt Refer to section 5 3 for these details Sampling Interval hh mm ss 00 00 00 00 00 05 lt CR gt Sampling Interval hh mm ss 00 00 05 lt CR gt Select Log Data Function 0 0 Instantaneous 1 Block Averaged wd 2 Block Capture Max 60 samples 3 Block Log Max 60 samples Select Block Average wind 4 Block Total ee direction 1 wd lt CR gt Select Log Data Function 1 wd 0 Instantaneous 1 Block Averaged wd 2 Block Capture Max 60 samples 3 Block Log Max 60 samples 4 Block Total lt CR gt Enter Number of Samples 00 Specify 24 samples 24 lt CR gt Enter Number of Samples 24 lt CR gt Logging Interval hh mm 01 00 lt CR gt MinMax Log Interval hh mm 00 00 lt CR gt Specify to log once an hour The log will occur at the top of every hour because sampling begins at the 58 minute mark and lasts for two minutes 0 None 1 value Scale Offset 2 value Offset Scale xP Polynomial xU User Defined 0 lt CR gt Current Time 12 32 00 Enter SAMPLING Start Time hh mm ss 00 00 00 12 58 00 lt CR gt The Start Time determines when the first sa
26. VB HG 0 973 08 33 00 1998 12 16 08 33 00 HG 0 973 VB 12 009 09 30 00 1998 12 16 09 30 00 VB HG 0 973 09 33 00 1998 12 16 09 33 00 HG APP E Data Formats APPENDIX D PDAS CIRCUIT BOARD 2A FUSE Lithium Battery APPENDIX F PDAS CIRCUIT BOARD GOES TRANSM CS HDR 0 Initialization 1 Diagnostics 2 Enable Transmitter 3 Display GOES Log Table 4 Edit GOES Log Function M Main Menu VIEW SENSOR DATA 0 Current Time 1 Instantaneous Data 2 Captured Block Data 5 Log File GOES INITIALIZATION 0 Set Date amp GMT Offset 1 Set GOES Platform Address 2 Self timed Mode 3 Random Mode M Main Menu SELECT OUTPUT FORMAT 1 0 1 0000 2 0 2 500 3 0 5 000 4 5 000 5 Binary Count 6 4ma Offset Correction 7 Temperature AD34 GOES DIAGNOSTICS 0 Current Configuration 1 Current GOES Time hh mm ss 2 Current Status 3 Last Message Status 4 Insert String to GOES Buffer 5 Error Status 6 Reset Error Counter M Main Menu TYPICAL MENU SYSTEM IS DEPICTED APPENDIX E Menu Map Main Menu GOES CSHDR SETUP View Data Sensor Log Table Log Retrieval Sensor Alarm Setup Svstem Setup SENSOR LOG TABLE 0 Display Log Table 1 Display Equation Setup 2 Add Edit Sensor 3 CLEAR Log Slot A All 4 Data Processing Enabled Capacity M Main Menu Log File Functions 0 Status 1 Retrieve No of records 2 Retrieve from date f append to invoke filter M Ma
27. columns in the Sensor Log Table NOTE The number of decimal places of the converted data is controlled by the value specified for OFFSET Therefore if you wish to display the results of the pressure to one decimal place enter 375 0 for the OFFSET No decimal point in the logged data would require an OFFSET of 375 5 3 3 CONVERSION EQUATIONS 5 28 EXAMPLE 3 Assume that the parameters HG water level and WV water velocity are set up for logging as shown in the example Sensor Log Table of section 5 3 page 5 16 The user wishes to define an equation to compute the discharge QR based on the incoming data from the SDI 12 sensor data at A1MO and A2MO Assume the following equation is required for this computation Discharge QR 8 71 HG 5 2 154 307 HG 5 208 1 WV Note that this equation is a polynomial of the form Discharge QR Cix Cx C Where x HG 5 HG X scale offset CHG X 1 5 000 Cy 8 71 Co 154 31 and C3 208 1 WV To perform this computation the user must configure a Sensor Slot which samples the parameter HG The substitution x HG 5 shall be done by specifying that a linear conversion where scale 1 and offset 5 000 be performed on the data prior to computing the polynomial selection 1P as shown below The coefficient C shall be defined by making a reference to log slot 2 This is done as follows gt 2 lt CR gt Select Log Slot
28. hours and minutes The min max values for any given time interval are updated internally every time the sensor is sampled as determined by the sampling rate These values are then entered into the log file at a rate indicated for Min Max Rate MM Time This is the Start Time for logging Min Max values See Start Time above NOTE Always specify a MM Time of 00 00 for slots that are to be triggered automatically by an alarm see section 5 5 Main Menu SENSOR ALARM TABLE gt Sensors are added to the sensor table with menu item 2 Add Edit sensor For example if the user wishes to enter the AMASSER PSE SDI Shaft Encoder into log slot 0 as shown in the table above he she would typically do as follows 2 lt CR gt Select Log Slot 0 15 0 lt CR gt SELECT SENSOR TYPE 0 Internal Sensor 1 SDI 12 Sensor For Switched 12V Enter S0 for Internal Sensors S1 for SDI 12 Sensors 1 lt CR gt Enter SDI 12 Port amp Address A 0 9 or B 0 9 A1l lt CR gt Enter SDI 12 Port amp Address A 0 9 or B 0 9 Al lt CR gt Enter SDI 12 Command M 0 9 or R 0 9 or C 0 9 MO0 lt CR gt Enter SDI 12 Command M 0 9 or R 0 9 or C 0 9 Mo lt CR gt Enter Number of Data Values to be Logged 1 lt CR gt Enter Value Position 1 9 0 Enter Value Position 1 9 1 lt CR gt Sensor label HG lt CR gt Sample every 5 min Sensor label HG lt CR gt Sampling Interval hh mm ss 00 00 00 00 05 00 lt CR gt Sampling Interva
29. is to be loaded Self Timed or Random Data that is loaded into the Self Timed and Random buffers will be transmitted as per the current configuration of these two transmission modes see 5 1 1 2 DIAGNOSTICS gt Item 5 Display GOES Log Table displays the current set up for the GOES telemetry of logged data For example 3 lt CR gt Slot Log Sensor Log GOES MIN MAX BUFFER Redundant No Enable Command Label Ratio Data Selection Mode 0 1 1A1M0 1 HG 01 Enabled Self timed Disabled 1 0 07 VB 04 Enabled Self timed Disabled 15 0 Disable Enabled Self timed Disabled Each column is defined as follows Slot No Each row of the table is known as a slot They are numbered from 1 to 15 Refer to 5 3 Log Enable Value is either 0 or 1 to indicate whether the parameter configured in that slot row is currently being sampled and logged Refer to Start Time in section 5 3 Sensor Command and Label This is the user specified command string for polling the sensor as well as its corresponding label This configuration of the logger is accomplished from the Sensor Log Table menu Refer to section 5 3 LOG GOES RATIO The LOG GOES RATIO determines whether GOES telemetry is enabled for the parameter in that slot as well as the frequency as a function of the Logging Rate see section 5 3 For instance a LOG GOES RATIO of 01 indicates that every acquisition that is logged is also transmitted via GOES A LOG GOES RATIO of 04 ind
30. measured For more information on the physical characteristics of the PDAS product line refer to Specifications The sensor may be installed in any orientation that a particular application may require Weights or other mechanical loads at right angles to the shaft center line should not exceed 10 Ib 4 5 kg Larger loads will distort the bearings increase the starting torque and decrease the bearing life 8 2 Electrical The PDAS III must be connected to a 12V power supply This connection is as per section 8 3 PDAS products are internally protected against transient voltages and lightning surges on the signal input lines However IT IS ESSENTIAL TO PROVIDE PRIMARY EXTERNAL LIGHTNING PROTECTION All connections are done externally by means of detachable terminal strips An externally mounted RJ11 connector is provided for modem equipped models option MDM and MDM V The NEMA environmental enclosure need not be opened except for servicing 8 4 Jumper Configuration 8 8 Amd No 2 Amd Date 2001 08 21 Reset Switch SAT HDR config Port 7 TA Aa RE antenna GPS antenna connector connector Status LED Figure 6 GOES related connections for the PDAS III 8 2 1 PSE Models The built in shaft encoder that is included with PSE models features a 9V battery This battery provides a power backup of the PSE shaft encoder in the event of an interruption in the main power supply WHEN INSTALLED the 9V battery
31. minutes Sensor sample Start Time hour minutes YVUUUUUY 32 768 log records each 32 bytes in length containing Date amp Time User defined Label and Data Data conversion capability including polynomials Data block log capability with user definable number of samples and sampling period View Data Facility selected sensor data written to Host Terminal at a user defined rate real time SDI 12 Transparent Mode Manual SDI 12 Communications User selectable data formats for log retrieval Excel Lotus Format Environment Canada Sequential Format or Environment Canada Tabular Format ALARM functions that have the ability of triggering a new logging rate or reading another sensor 1 2 Hardware Options 1 2 1 2 Hardware Options Description Seimac SAT HDR GOES transmitter with PDAS III menus providing comprehensive initialisation and diagnostics routines See section 5 1 1 Built in shaft encoder water level sensor for the PDAS III Note that this is in fact the AMASS Data PSE SDI incorporated into the same casing It features a resolution of 1 400 of a revolution Same as the PSE option except that it also features an 8 digit display and two operator interface switches Refer to section 2 2 PSE D Display Operation Built in AMASS Data PMDM Environmental Modem Very low power mode powered by 12VDC operating temperature of 40 to 85C 9600 baud or 14 4 kbaud Refer to documentation for PMDM Built in PMDM V E
32. no parity e Built in modem PMDM option max 9600 baud 8 data bits 1 stop bit no parity e Telecommunications via GOES transmitter Outgoing messages only Power Consumption lt 7 mA w o comm port connected lt 19 mA w comm port connected Max current lt 100 mA with PSE D display on Real Time Clock Motorola adjusted to 15ppm per year Physical Characteristics Basic Models in NEMA box Length 254 mm 10 0 in Width 200 mm 8 0 in Depth 125 mm 5 0 in Weight 4 Kg 10 Ib Mounting flange with 8mm holes The above information is believed to be true at the time of printing AMASS Data Technologies Inc reserves the right to modify specifications without notice All trademarks are owned by their respective companies AMASS Data Technologies Inc 702 Route 105 Chelsea QC JOB 1L2 TEL 819 8270077 FAX 819 827 4305 Email sales amassdata com Web page at http www amassdata com 10 SPECIFICATIONS 10 1 APPENDIX A SDI 12 COMMUNICATIONS ERROR MESSAGES While communicating with SDI 12 sensors the PDAS may generate any one of the following error messages as a result of the tight timing constraints of the SDI 12 protocol Note that the PDAS is multi tasking and that the SDI 12 communications and data logging take precedence over RS232 SDI 12 Communications Error Messages ERROR NUMBER MEANING 1 Timeout waiting for address of initial response 2 Timeout waiting for addres
33. of samples must be no more than 12 lt CR gt 12 in this example Enter Number of Samples 12 lt CR gt Logging Interval hh mm 00 00 01 00 lt CR gt Logging Interval hh mm 01 00 lt CR gt MinMax Log Interval hh mm 00 00 lt CR gt Select Sensor Equation Type 0 0 None 1 value Scale Offset 2 value Offset Scale xP Polynomial xU User Defined xB Block Functions where x 0 10r2 lt CR gt Current Time 16 22 09 Enter SAMPLING Start Time hh mm ss 00 00 00 17 00 01 lt CR gt Current Time 16 22 17 Enter SAMPLING Start Time hh mm ss 17 00 01 lt CR gt NOTE The logger only prompts once for the sampling rate in multi mode Here is the result as displayed in the Sensor Log Table Slot Log Sensor Sampling Start Time 1I B Logging Min Max MM No Enable Command Label Rate Av Cap Rate Rate Time Log Sf O mAOMOVi HGAVE 0000 00 gt 2 0 00 00 00 hh mm ss l 00 00 00 00 hh mm 15 1 00 00 00 hh mm ss l 00 00 00 00 hh mm 4 3 HOW TO 4 13 4 3 6 USE THE AUTO CALIBRATE FEATURE The PDAS loggers comprise an auto calibrate feature to ease the installation and calibration of linear sensors The auto calibrate feature allows the user to instruct the logger to calculate the appropriate SCALE and OFFSET to achieve user specified values When the auto calibrate feature is invoked the PDAS queries the desired sensor for a real time reading The user has
34. of the Sensor Command 1A0M5 1 is as follows l indicates an SDI 12 sensor occupies the slot AO sensor is connected to SDI 12 channel A and its SDI 12 address is 0 The PDAS III has two SDI 12 channels labeled A and B MS5 the SDI 12 command that the PDAS III will transmit to the sensor to retrieve the desired paramters 1 log the first data value in the response string Also m indicates a slot that is linked to another as a result of a multi value configuration Here slots 5 and 6 are linked to 4 EXAMPLE 2 The multi mode can also be used to perform several operations on a single value Example 1 showed how the logger can parse multiple data that is returned with a single SDI 12 command In this example multi mode is used to sample and log SDI 12 values as well as compute and log the average and minimum maximum of these values 2 lt CR gt Select 2 Add Edit Sensor from the Sensor Log Table menu section Main Menu SENSOR LOG TABLE Select Log Slot 0 15 0 lt CR gt SELECT SENSOR TYPE 0 Then select a vacant slot Note two 0 Internal Sensor slots are required for this the one you 1 SDI 12 Sensor select and the one just beneath For Switched 12V Enter S0 for Internal Sensors S1 for SDI 12 Sensors 1 lt CR gt 4 3 HOW TO 4 11 Enter SDI 12 Port amp Address A 0 9 or B 0 9 Enter the address of the sensor Here AO A0 lt CR gt Enter SDI 12 Port amp
35. platform address 5 10 Log File Erasing 5 38 Filter 5 33 Format 5 38 LOG FILE RETRIEVAL 5 31 by date 5 33 by number of records 5 32 LOG GOES RATIO 5 7 Logging average data 5 21 Monitoring INDEX Index Internal temperature 5 44 Main voltage supply 5 44 solar panel 5 44 Number of Samples See Logging block See Logging block Password changing the 5 40 ENTRY 5 2 PROGRAM 5 2 PSE 2 1 Realtime Data viewing See VIEW DATA Redundant Mode 5 7 SDI 12 Multi Value Mode 4 10 Transparent Mode 5 41 value position 4 6 SDI 12 Protocol 3 1 SENSOR ALARM TABLE 5 34 Sensor Command 4 11 Sensor Log Table Eq 5 20 Log Enable 5 16 Logging Rate 5 18 Min Max Rate 5 18 MM Time 5 18 Offset and Scale 5 20 Sampling Rate 5 17 Sensor Command 5 17 Sensor Label 5 17 Slot No 5 16 Start Time 5 17 SENSOR LOG TABLE 5 16 Serial Number 1 3 Setting Date and Time 5 5 logging schedule See SENSOR LOG TABLE Shaft Encoder built in Node Address 2 3 Scale and Offset 2 3 Special characters 5 2 Switched 12V 4 9 5 41 time delay 5 40 SYSTEM SETUP 5 38 terminal emulator 4 1 termination resistors 4 7 VIEW DATA 5 15 period 5 40
36. platform address for units equipped with GOES support see below This information is stored in the RAM which is safeguarded by the Lithium battery The user may alter these parameters except for the product name and author of course by selecting item 1 SET DATE AND TIME of the main menu Doing this prompts the user for a new entry by displaying the current value of each parameter in turn You may respond by typing a new value or by simply pressing the enter key to leave the current value unchanged gt For example if the date and time are to be set the user would select 1 SET DATE AND TIME from the Main Menu and interact in the following manner DATE 1997 06 03 1997 06 04 lt CR gt DATE 1997 06 04 lt CR gt TIME 11 42 34 11 43 34 lt CR gt TIME 11 43 34 lt CR gt Where lt CR gt is the enter key Note that changes are confirmed by echoing the new value the bold lettering represents the program s output whereas the regular font represents the user s input Values that are to be left unchanged are not echoed once you press the enter key gt FOR LOGGERS EQUIPPED WITH GOES SUPPORT selection 1 appears as 1 GOES HDR SETUP see section 5 1 1 All setup of the GOES transmitter is accomplished from this selection Setting the date and time with the GOES based units option HDR is usually accomplished via 1GOES HDR SETUP gt 0 Initialization refer to section 5 1 1
37. power down modes available on the processor to allow savings in both the size and the price of the power source equipment needed to run your requirements This environment supports multiple tasks executing on a single processor and prevents problems such as loss of data or loss of communications when two or more events occur in the same time frame This manual covers the operation of the PDAS III loggers The standard features of the PDAS are described in section 1 1 Standard Features whereas its options are listed in section 1 2 Hardware Options The standard PDAS comes with firmware providing modem support however it is also available with the firmware options listed in section 1 2 Hardware Options The user simply uploads the desired firmware or selects the previously loaded firmware as described in section 4 2 SOFTWARE UPGRADES New users of this data logger may refer to section 4 OPERATION and 4 3 HOW TO Otherwise a detailed description of the complete menu hierarchy is found in section 5 MENU TREE REFERENCE as follows Section 5 1 corresponds to selection 1 of the main menu It is where the GOES transmitter is configured for models with GOES support PDAS IN HDR For models with a built in modem PDAS II MDM or PDAS III MDM V this selection is simply where the date and time are set Section 5 2 corresponds to selection 2 of the main menu This is where the user can view real time data from sensors configured for logging as w
38. rather utilize the following Direct Communications Commands LOG STATUS COMMAND command LS lt CR gt response lt Log File Status gt example LS lt CR gt Storage Capacity 32768 Current Record 4140 Oldest Record 0 Error Flag 0 7 DIRECT COMMUNICATIONS COMMANDS 7 3 LOG RETRIEVAL BY NUMBER COMMAND command LR lt Entry password gt lt number of records to be downloaded gt lt CR gt e yields data in the format specified from the menu system See 5 6 2 gt Log File Functions Optional command LR lt Entry pwd gt t lt col delimiter gt s I e f lt of rec to be downloaded gt lt CR gt meaning of flags is as follows t lt col Delimiter gt tabular Excel Lotus format using specified column delimiter Note that the delimiter character is actually typed following the t For example to use the lt TAB gt character as the delimiter press the lt TAB gt key Environment Canada Sequential format Environment Canada Tabular comma delimited format Invoke the download filter The filter is defined from the menu system response lt Downloaded data with Header information gt Ex 1 You wish to download 40 records and the format is currently set to Environment Canada Sequential LR AMASSER 40 lt CR gt AMASS Data Technologies Inc PDAS M 682 Firmware c William P Thomas 1996 97 98 99 2000 2001 DATE 2001 08 12 TIME 10 25 36 UNIT ID NO 01 SITE DESCRIPTI
39. session or if the user is prompted to capture a file proceed as follows e Click on Transfer on the menu bar then on Capture text e Type a path and file name for the new session then click on Start The ensuing transaction between computer and PDAS III will now be recorded in the captured file This captured file can either be viewed in a text editor or loaded into another logger in the case of a Configuration File see 4 2 When the session has terminated simply click on the Disconnect button on the toolbar close the emulator window and open the capture file which now contains the entire hosting session Note that upon closing the 4 2 SOFTWARE UPGRADES 4 1 emulator window a message such as Do you want to save session AMASSER will appear Click Yes An icon with the label amasser should then appear This icon may be dragged onto the desktop if so desired To initiate any future sessions the user need only click on the icon Note that although the baud rate of the programming port defaults to 38400 it is in fact programmable from 300 to 38400 baud and is accomplished from the System Setup submenu see below Now that the emulator window is on the screen and that the Capture text has been initiated the user can begin using the menu system as described in the following section 4 2 SOFTWARE UPGRADES 4 2 4 2 SOFTWARE UPGRADES The software that is resident in the PDAS III is upgradeable from your PC wi
40. the SENSOR LOG TABLE submenu SENSOR LOG TABLE 0 Display Log Table 1 Display Equation Setup 2 Add Edit Sensor 3 CLEAR Log Slot A All 4 Data Processing Enabled M Main Menu gt 0 Display Log Table to view the current logging setup of all sensors as described at the beginning of this section gt 1 Display Equation Setup to view the user defined conversion equations corresponding to the sensors that are setup for logging These equations are presented in tabular format as follows Slot Log Sensor Equation Scale No Enable Command Label Type 0 1 1A1M0 1 HG 0 0 1 0 07 VB 0 0 2 0 1A2M0 1 WV 0 0 3 1 1A1M0 1 QR 1p 1 4 0 0 5 0 0 6 0 0 7 0 0 8 0 0 9 0 0 10 0 0 11 0 0 12 0 0 43 0 0 14 0 0 15 0 0 Offset 0 0 0 5 000 Equation Type The flags that appear in this column represent the type of conversion equations that have been defined for the parameter assigned to that slot The PDAS rev E and later allow the user to apply a variety of equations including simple linear formulas polynomials and trigonometric functions Refer to section 5 3 3 Offset and Scale These values are defined by the user if a linear conversion equation is applied to the data as shown in section 5 3 3 These columns are set to zero if no linear conversion has been defined gt Item 3 Clear Log Slot clears a log slot for future use Clears all slots if the user then enters A for all gt Item 4 Data
41. the option of accepting this reading or entering the desired value If a new value is entered the auto calibrate feature determines the appropriate SCALE or OFFSET to achieve this reading For example suppose a new installation of a pressure transducer water level sensor is taking place The sensor is lowered to a known depth from the surface Then configure the logger for sampling and logging this sensor described in detail in section 5 3 Main Menu SENSOR LOG TABLE also see 4 3 1 4 3 2 using Sensor Log Table gt Add Edit When prompted for a Sensor Equation Type select 1 value Scale Offset then proceed as shown below Select Sensor Equation Type 0 0 None 1 value Scale Offset 2 value Offset Scale xP Polynomial xB Block Functions where x sog 1 lt CR gt Enter Sensor Scale 0 or A for Auto Calculate When prompted for the SCALE type A to invoke the auto calibrate feature A lt CR gt 2001 10 19 16 33 08 HG 2 500 A real time reading is returned If this is the correct value Enter Desired Value depth in this example then accept it by pressing Enter 2 505 lt CR gt otherwise type the desired value as shown here Enter Sensor Scale 1 002 a ee ae oak The PDAS calculated a SCALE of 1 002 to convert the Enter Sensor Offset 0 incoming data to the desired value or A for Auto Calculate 10 000 lt CR gt On site measurements
42. then be uploaded to other PDAS II loggers rev E using selection 2 LOAD CONFIGURATION FILE in order to greatly facilitate setting up multiple units The retrieval of the file is accomplished with the Capture utility of your communications program as prompted by the PDAS IIL LOADING A CONFIGURATION k 2 3 Select 2 LOAD CONFIGURATION FILE You are prompted as follows Upload configuration now At this point the PDAS III is in receive mode DO NOT TYPE ANY CHARACTERS OR PRESS Enter If using Hyperterminal click on Transfer at the top of the window then click on Send Text File In the box labeled Files of Type select all files Browse for the new configuration file to be loaded into the logger Configuration files are generated by selection of 5 RETRIEVE CONFIGURATION explained below Select the file then click on the OPEN button The file is now being transferred to the logger If your terminal has local echo enabled you will see characters scrolling by on the screen NOTE Do not load a configuration file that is stored on your floppy This will prolong the procedure 4 Wait until the logger displays a message to indicate that the upload is complete DO NOT TYPE ANY CHARACTERS OR PRESS ENTER WHILE WAITING This message is either Upload successful or something like Failure error 1 The time taken for loading in a new configuration file varie
43. time data The real time data is updated once a second Unlike the View Data facility obtained from the Main Menu typing VD allows the user to view at once all sensors that are configured in the Sensor Log Table In addition a header appears with the date and time updated once a second DATE 2002 02 10 TIME 13 13 26 VB 12 15 HG 22 321 8 INSTALLATION 7 7 Amd No 2 Amd Date 2001 08 21 8 INSTALLATION PSE Digital Display ae SDI 12 amp Event Counters a RJII tele phang Sar gt b Programing Part I2VDC Input Def 584g nid s e A 7a EENT HDR Config Port RF connector 7 SS 7 GPS antenna Figure 5 PDAS III with PSE D and HDR options Analog 1 0 PSE Shaft Encoder 8 1 Mechanical The AMASSER PDAS loggers may be attached to a flat surface using screws with flat washers or 1 4 bolts through the holes located in the mounting brackets 8 1 1 Shaft Encoder Setup Models that feature the built in shaft encoder PSE and PSE D options only may be used to measure water level For this purpose the unit may be attached to a horizontal or vertical surface in a gauge house with the shaft extending horizontally over the stilling well Pulleys supplied by AMASS Data are secured to the Delrin hub using three 6 32 Stainless Steel screws The threaded shaft also accepts standard L amp S or F amp P clamping assemblies With suitable mechanical coupling even linear positions may also be
44. which consists of sending a spacing signal 5 V for more than 12 millisec This will wake all sensors connected to the line The controller then sends an SDI 12 command The format of each byte of data is 1 start bit 7 data bits with the least significant bit first 1 parity bit with even parity and 1 stop bit The first significant byte of any message is the address of the sensor all sensors with different addresses return to the sleep state and ignore the rest of the command The last character of a command is always and the controller turns off its transmitter within 7 5 millisec after sending the The sensor responds by setting the data line to marking 0 V for 8 33 millisec and then begins its response The first bit of the response must be sent within 15 millisec of receiving the last byte of the command Any SDI 12 device may be connected to the SDI 12 ports For example with the AMASSER PSE SDI Shaft Encoder the current value of the water level stream stage or other quantity being measured may be retrieved by sending a start measurement command that is aMO The PSE SDI maintains in its memory a number which represents the current water level so that upon receiving the Measure aMO command from the PDAS SDI it transfers this value to the output buffer in the required ASCII format based on the offset and scale parameters and upon receiving the Send Data aDO command the value from the output buffer is returned to th
45. 0 5V The user selected a range of 0 5V 4 lt CR gt en ene ee SELECT OUTPUT FORMAT 1 0 1 0000 2 0 2 500 3 0 5 000 4 5 000 5 Binary Count 6 4ma Offset Correction 7 Temperature AD34 8 Wind Direction 3 lt CR gt Custom Equation Required 0 No 1 Yes 1 lt CR gt Enter Sensor Scale 750 lt CR gt Enter Sensor Offset 375 0 lt CR gt The set up is complete The AIS will convert the analog data of channel 2 to PST based on a full scale value of 3000PSI when the sensor outputs 4 5V and OPSI for 0 5V To monitor this value simply select channel 2 from the list of Internal Sensors when adding a sensor to the Sensor Log Table This is described in 5 3 2 INTERNAL ANALOG SENSORS Alternatively the SCALE and OFFSET can be defined from within the Sensor Log Table An example of this is shown in section 5 3 2 INTERNAL ANALOG SENSORS That method is in fact completely equivalent except that the input range of the channels can only be configured from within System Setup as shown in this section Note that the user can obtain real time readings by exiting the menu system and using the command MA to read the current value of channel 2 as described in 7 DIRECT COMMUNICATIONS COMMANDS Note that the number of decimal places for the converted data is specified by the value entered for the offset The number of decimal places of the converted data will be equal to that of the value specified fo
46. 00 for rev H systems until further notice Please refer to section 8 4 2 MDM First Time Initialization and the PMDM manual Selection of 1 Modem Port allows the user to configure the modem port and PMDM as follows 1 lt CR gt Modem Port 0 Baud Rate 1 AT init string 2 AT hangup string 0 lt CR gt The current baud rate of the GOES modem Set Modem Port Baud Rate 1 _ port is shown here 1200 baud 0 300 Baud 1 1200 Baud 2 2400 Baud 3 9600 Baud The response from the PMDM modem is 4 Cellular confirmation that the configuration was 5 Prog Port mode accepted Note that 02 here corresponds 2 lt CR gt ee to 2400 baud the desired baud rate Amass Data PVMDM C182 02 5 6 1 Modem Configuration 5 42 Set Modem Port Baud Rate 2 0 300 Baud 1 1200 Baud 2 2400 Baud 3 9600 Baud 4 Cellular 5 Prog Port mode lt CR gt Thus the modem port and PMDM were successfully configured to a baud rate of 2400 Note that the default value is 1200 baud 4 Cellular configures the modem to be compatible with a cellular transceiver with MNP10 error checking 5 Prog Port Mode configures the modem for connection to the Programming Port This allows the PDAS to have a GOES transmitter and a modem connected to it simultaneously To achieve this configuration follow the instructions in section 8 2 4 Note that to make use of this feature the modem requires a
47. 01 08 12 02 30 05 VB 12 010 Sensor Slot 1 slot 1 Refer to example 2001 08 12 02 33 03 HG 0 973 in section 5 3 Main Menu SENSOR LOG 2001 08 12 03 30 05 VB 12 009 TABLE 2001 08 12 03 33 03 HG 0 973 2001 08 12 04 30 05 VB 12 009 2001 08 12 04 33 03 HG 0 973 2001 08 12 05 30 05 VB 12 009 2001 08 12 05 33 03 HG 0 973 2001 08 12 06 30 05 VB 12 009 2001 08 12 06 33 03 HG 0 973 A single character precedes the data for 2001 08 12 07 30 05 VB 12 009 parameter HG because it is allocated to 2001 08 12 07 33 03 HG 0 973 Sensor Slot 0 slot 1 2001 08 12 08 30 05 VB 12 009 2001 08 12 08 33 03 HG 0 973 2001 08 12 09 30 05 VB 12 009 2001 08 12 09 33 03 HG 0 973 7 1 SHORT FORM MENU 7 6 7 1 SHORT FORM MENU The PDAS logger provides special characteristics when the ENTRY password see section 4 1 is set to a lt spacebar These characteristics are as follows e The ENTRY password protection is disabled e ASHORT FORM MENU is displayed prior to entering the Main Menu This SHORT FORM MENU is as follows AMASS Data Technologies Inc PDAS MDM E050 Firmware c William P Thomas 1996 99 2000 01 LS Log Status LD yyyy mm dd Retrieve from Date LR xxxxx Retrieve xxx log records VD View Data M Main Menu The selections LS LR and LD are described in the previous section 7 View Data allows the user to view ALL sensors at once and their corresponding real
48. 100mVas follows 1 lt CR gt SELECT A D Channel 1 2 3 or 4 Single Ended Ch 5 Differential 1 2 The user selected channel 1 6 Differential 3 4 3 lt CR gt SELECT INPUT RANGE 1 100mV 2 0 1V 2 5V ET The user selected a range of 100mV cete SELECT OUTPUT FORMAT 1 0 1 0000 2 0 2 500 3 0 5 000 4 5 000 5 Binary Count 6 4ma Offset Correction 7 Temperature AD34 8 Wind Direction 4 lt CR gt The sensor can now safely be connected to channel 1 In order to obtain precise measurements the user should then perform a system calibrate on this channel in order to account for inaccuracies in the resistive divider Please contact ADT for instruction for doing this 6 GOES DATA RETRIEVAL 5 49 6 GOES DATA RETRIEVAL In order to access the GOES data that the antenna has transmitted the user must dial up the central DAPS facility in Wallops Virginia using a telnet session Once connected to the internet through your local ISP proceed as follows if using Windows XP e Click on Start then Run e Type telnet 205 156 2 178 and click OK Now wait a moment until the DAPS prompt appears the telnet connection has been successful Enter your username and password When the correct username and password has been accepted the user may enter the proper command for the downloading of data Prior to doing so however the user must begin logging the Telnet session so that the downloading of data is ca
49. 2 Set JB6 to HC and install JB14 Ga ee HC 485 e o JBI4 for SDI 12 RS485 e ee JB6 Set JB6 to 485 and remove the jumper in JB14 HC 485 8 4 Jumper Configuration 8 12 8 4 2 MDM First Time Initialization Models with MDM in the product name are equipped with a built in PMDM environmental modem First time initialization of the PMDM may be required in the following circumstances e Following the installation of a new processor in the PMDM modem with updated firmware e To re establish communications between the PMDM and the PDAS logger SEE section 5 6 1 The location of the First Time Initialize is as follows First time initializgtion jumper SS Figure 8 Location of first time initialization jumper on the PMDM modem NOTE DO NOT DISCONNECT RECONNECT THE INTERNAL MODEM LOGGER INTERFACE CABLE WHILE THE PRIMARY POWER IS APPLIED Ifa reset of the modem must be made reset the power to the whole system TO PERFORM A FIRST TIME INITIALIZATION Install the first time initialize jumper as shown in Figure 8 Power up the system Wait at least 10 seconds for the initialization cycle to complete Remove the jumper Disconnect the power Reconnect the power to the system The First Time Initialize is complete ie a ENSURE THAT THE FIRST TIME INITIALIZE JUMPER IS REMOVED DURING NORMAL OPERATION OTHERWISE THE PMDM WILL REVERT TO 1200 BAUD EVERY TIME THE POWER TO IT IS CYCLED 8 13 9 M
50. 2 1 2 1 QUADRATURE ENCODER PRINCIPLE OF OPERATION cscssccecessceceessececsesececseeeecsesaeeecsenaececsesaeeessueeeenenaees 2 1 2 2 PSP D DISPLAY OPERATION si jcciscicocobevs dice suevehecbeceyeusucstoeeseessveu yous cos cveessoeseusepeesesssyuevuustvscendsapeusvertoeusedssi s 2 2 2 3 VEW THE CURRENT LEVEL 00ecececevecovvcvvscvceve vv cove cvvscvcevevevvvsvvscveveesvsvvvsevssevevessvsvevsvevsvevevsvsvevsvessvevessesves 2 3 2 4 ACCEPTING CHANGING THE PASSWORD ccccccececececececececececececececececececececececececececececececececececececececececececececs 2 3 2 5 SET THE SCALE AND OFFSET sx scscegiccsgs aaeeea deve eves eh so ercdty vv aves eh severed deve evs gh se ecd dp ovavesdhsvseea des extesdse ecdiess 2 3 2 6 SET THE NODE ADDRESS e orosei cscs gh seduces gs vv duds ve dude ts ds ovis de sodercsy vv sees th a ty de atisdh suguci ts se dveschieQecdae ds osdsehseguei tess 2 3 3k BUS PROTOCOLS oss ceccsisssvesectesvesessssvesesesvecedsesvelcssestesesesvecsassest oseedeteos esses sestesaubestodstusteseaseesseavesnssssustesseates 3 1 3 1 DAS COMMUNICATIONS PROTOCOL sssssssssssssssessssscsesssssesesssesesesesesesesescsessseecseseessesssesessseseseeseeseeees 3 1 32 5 SDUEZ12Z PROTOCOL hs hoe eee a OE ERIS 3 1 4 OPERATION wisssssscsssssscssscossecsnscasssisccosecseccossctacesbussasssbecdoosesecsesossecsocustecsesosccsdeenssesusbeesosestecdecbeseasssiecsosestecsoseste 4 1 Alte GETTING STARTED e
51. 2 Sensor For Switched 12V Enter S0 for Internal Sensors S1 for SDI 12 Sensors In the sensor log table above this field is set to I for slot 0 because the slot is occupied by a SDI 12 sensor an external SDI 12 water level sensor The term Jnternal sensor applies for instance to the built in shaft encoder which is present when the PDAS III is ordered with option PSE D refer to 5 3 2 INTERNAL ANALOG SENSORS In this case a 0 appears for the first character of the Sensor Command Note that the built in shaft encoder is set to address A and that the logger always assumes it to be at that address i e do not change the address of the PSE D Also if your PDAS is NOT shipped with the PSE D option address A may be used to set up an external sensor as internal provided that the command aMO is supported by the sensor To do this simply set your sensor to address A and enter it in the Sensor Log Table as an Internal Sensor as Shaft Encoder Refer to 5 3 2 INTERNAL ANALOG SENSORS The PDAS also features a switched 12 VDC power port for sensor activation When a sensor is configured to be activated by the switched power port it appears in the sensor log table with a S for the first character of the Sensor Command The remainder of the string is the SDI 12 command that is used to initiate a measurement as well as the addition of an indicator such as 1 or 8 This indic
52. 20 sec 60 lt CR gt Enter Link Preamble 1 0 Long 1 Short lt CR gt Enter Link Interleaver 1 0 None 1 Long 2 Short lt CR gt 5 1 1 Main Menu GOES CSHDR SETUP 5 9 GOES INITIALIZATION 0 Set Date amp GMT Offset 1 Set GOES Platform Address 2 Self timed Mode 3 Random Mode M Main Menu gt The date and time is set from 0 Set Date amp GMT Offset of the Initialization menu For example 0 lt CR gt DATE 1999 03 03 1999 03 08 lt CR gt DATE 1999 03 08 lt CR gt Enter GMT Offset hh mm 05 00 04 00 lt CR gt Enter GMT Offset hh mm 04 00 lt CR gt GMT Time 14 53 12 RTC Time 10 53 12 Enter RTC Time hh mm ss 10 54 05 lt CR gt GMT Time 14 54 05 RTC Time 10 54 05 Enter RTC Time hh mm ss lt CR gt Press Enter to start GOES Clock lt CR gt The Seimac SAT HDR transmitter synchronizes its GPS clock approximately 20 seconds prior to transmission The PDAS III synchronizes its clock with that of the SAT HDR transmitter following every transmission that is immediately after the expiration of the transmission window gt The GOES platform address is set with 1 Set GOES Platform Address of the Initialization menu 1 lt CR gt Enter GOES Platform Address 8 hex digits 34383136 48161450 lt CR gt Enter GOES Platform Address 8 hex digits 48161450 lt CR gt The transmitter must now be rearmed in order for transmissions to take place This is done with 2 Enable Transmitter from the GOES Main
53. 31 lt CR gt q4 _ C is the constant 154 31 x xxx constant or xx xx ISF equation Enter Coefficient 3 208 1 2F lt CR gt C 208 1 log slot 2 Enter the number of Decimal Places 1 lt CR gt Current Time 12 32 00 Enter SAMPLING Start Time hh mm ss 00 00 00 The Sensor Log Table is thus 12 36 00 lt CR gt Logging Min Max Slot Log Sensor Sampling Start Time I B No Enable Command Label Rate Av Cap Rate Log 0 1 1A1M0 1 HG 00 05 00 12 33 00 l 01 00 1 0 07 VB 00 10 00 12 30 00 l 01 00 2 0 1A2M0 1 WV 00 01 00 12 35 00 l 01 00 gt 3 1 QR 00 15 00 12 36 00 I The Equation Setup table is thus Slot Log Sensor Equation Scale No Enable Command Label Type 1 1A1M0 1 HG 0 0 0 1 0 07 VB 2 0 1A2MO 1 W gt i 1i Note the following e The coefficients are entered from the highest order term x above to the lowest 0 0 0 0 TAMO QR ip o 5 000 0 0 0 Offset Rate 24 00 00 00 00 00 MM Time 23 55 hh mm 00 00 e A Scale of one is best input as 1 not 1 0 This is because the PDAS detects a scale of unity if it is input as 1 to which the logger forfeits the multiplication The result is shorter execution times e The Offset is best entered with the number of decimal places equal to or greater than that of the data to which it is being added or subtracted In this case the value of HG is assumed to be represent
54. 4 Attenuation of bipolar signals eseseeeesseeseeeesesestsreterersrstsrettersestettetststesestettststssesestetetstrsesrereerstesesrsete 5 49 Figure 5 PDAS III with PSE D and HDR options 00 0 0 cceessseccsseceeeseceeeeceseeecsaecesesecseesecnaeecsaeceeaecaeesesnaeeeeeaees 8 8 Figure 6 GOES related connections for the PDAS IDL 0 0 ee eessecssecsseeecneeseceeeeecaeceeesecseesecnaeeeesaenaeeecsaeeaeeneeeeesaees 8 9 Figure 7 Detachable terminal strip mounted to all PDAS III rev E and F loggers eeeeceessseeeeeeecneeereneeeeeees 8 11 Figure 8 Location of first time initialization jumper on the PMDM modem ceeeseeceseeeceseceeeeceeeeeneeeeeees 8 13 LIST OF TABLES Table 1 Proper values for termination resistors ccccceeccescceseceseceecesecesecenecesecaeecaeecseeeneeeeeeeeeeeseeeseeeaeeeaeenaeenaeeaee 4 7 Table 2 Special characters for use with rev E and later PDAS loggers ee eeeeesseeecneesecneeeecaeceeesecseeseeneseeeeaees 5 2 Table 3 A D configuration options for channels 1 to 4 eee cceesecseesecneeeecseeecsaeceeeeceaeceeesecaeesecnaeeecsaeeseeneseeeaees 7 2 Table 4 Analog Inputs of the PDAS IIT rev E eee eee ceecesscesecesecesecesecsaecseecaeecseseaeseeeeeeeeessecneseeecsaecnaeenaesaes 7 2 1 AMASSER PDAS III Loggers 1 5 PDAS IITI AMASSER Pliant Data Acquisition System Pliant Technology Specialists Pliant readily yielding to influence 1 AMASSER PDAS III Loggers The PDAS p
55. 92 12288 16384 20480 24576 28672 32768 The non volatile flash always contains the most recent records a maximum of 32768 The Oldest reading is in fact the LOCATION of the oldest reading within the Log file which in the example above is the first record of sector 5 In fact it is always the first record of a sector with the exception of a Log file which has yet to roll over for the first time given that the PDAS clears all 4096 records present in a sector prior to logging the first record therein The Current reading is in fact the LOCATION where the last log entry took place which in the previous example was 15000 that is somewhere in sector 4 Therefore the values of both Oldest reading and Current reading determine where logging is taking place within the Flash memory Note that the log records are written to Flash memory The latter is configurable as a circular buffer or not using selection System Setup gt Log File Functions gt 4 Flash Data Overwrite 5 4 Main Menu LOG FILE RETRIEVAL 5 31 The total number of records in the flash at any given time if the buffer has rolled over at least once is therefore equal to 7 X 4096 lt Total number of records lt 32768 Also Records Used 32768 16385 15000 31383 as in the previous example If the buffer has yet to roll over for the first time selection 0 Status would be as follows 0 lt CR gt Storage Capacity 32768 Records Used 15000 Current reading 15000
56. AINTENANCE Maintenance of any PDAS logger is very minimal The only components that eventually require replacement are batteries All units include a Lithium battery which is used to run the clock and back up the RAM space which stores the date time unit identification number GOES configuration and sensor set up NEVER REMOVE THE LITHIUM BATTERY UNLESS IT NEEDS TO BE REPLACED Check the battery voltage with it in its holder NEVER REMOVE THE LITHIUM BATTERY UNLESS IT IS BEING REPLACED Doing so will erase the NVRAM and all calibration tables for the AIS Analog Input Subsytem The Lithium battery should be replaced when its voltage drops below 2 25V The voltage of the Lithium battery can of course be monitored by the on board AIS by selecting RTC Lithium V from the internal sensor list as shown in section 5 3 2 INTERNAL ANALOG SENSORS However monitoring the voltage of the Lithium battery does reduce its life expectancy down to approximately 5 years Alternatively the user can read the voltage of the Lithium battery at will by issuing the following Direct Communication Command MA6 see section A D MEASUREMENT COMMAND on page 7 2 The normal life expectancy of the Lithium battery is about 10 years To replace the Lithium battery 1 Disconnect power 2 Open the logger enclosure to gain access to the printed circuit board 3 Locate the Lithium battery see Appendix D and replace 4 The NVRAM that is the program s is now erased
57. EE EE E REEE 9 1 10 SPECTEICATIONS scsssssssssssssssessssessessssessessesessessesessessssessessssessssessessesessassesesassesesessesessessassesessessesess 10 1 APPENDIX A SDI 12 COMMUNICATIONS ERROR MESSAGEG cssssssssssssssrsesssssssesssssssssssssseeseeees 10 2 APPENDIX B PSE SHAFT ENCODER COMMAND sssssssssssssssrserssssrsnsssessesscsersessccsssessesensesessenseseeses 10 C APPENDIX C PDAS DATA FORMATS csccsssssssssssesssssssessessrsesscssnssscssssesecsesssscsessessecessessesensesseceneeseeseeses 10 4 APPENDIX D PDAS IIT CIRCUIT BOARD cscsssssssssssssssessessrsessrsessssrsensesersessesessessecensessesensesssseneesesseeses 10 5 APPENDIX E MENU MAP cscssssssssssrsessssrserscssrsesscssrsessessnsssessnsesscsersesscsessesscsessesecsensesscsessesscsensnsessensnseeses 10 6 APPENDIX F SAT HDR ERROR CODES eseseseseseseseseseseseseseseseseseseseseseseseseseseseoeseseseseseseseseseseseseseseseseseseseseseoes 10 7 INDEX E T EE T AA E E EO EEE E N O E 10 8 LIST OF FIGURES Figure 1 Front panel of PSE D models s ssessssssseeserereesssteesseseroeserisereersssesrserdeventesesieeettsesercerceeshesa eesestesroerenr sesese 2 2 Figure 2 Implementation of UPPER and LOWER trip Values c scsscssssssessesscsseeecesecseesecneeecuseeeesaecaeesecaeeeenaeeneens 5 36 Figure 3 Proper termination resistor for 4 20 mA applications s sseesesesseesrseesesrsesreerstesseserrrerersrsesrerrereeseseseee 5 48 Figure
58. ES telemetry gt Item 4 Edit GOES Log Functions allows the user to make changes to the GOES Log Table For example assume the user wishes to transmit only every second data value that is logged for HG 4 lt CR gt R resets the GOES LOG TABLE to the SENSOR SLOT ALLOCATION default values that is LOG GOES R Reset Table RATIO of 1 and Min Max enabled HG 0 VB 1 Select Log Slot 0 15 0 lt CR gt Parameter HG is selected here GOES LOG FUNCTIONS 0 Goes Log Interval 01 1 Goes Min Max Log Disabled Current settings for the chosen slot 2 Goes Buffer Self timed o o 3 Redundant Tx Mode Disabled Esc Back to GOES Menu 0 lt CR gt Enter Goes Log Interval 0 255 A LOG GOES RATIO of 2 is entered here Enter 2 lt CR gt 0 to disable telemetry of the sensor GOES LOG FUNCTIONS 0 Goes Log Interval 02 1 Goes Min Max Log Enabled Select 1 to disable the telemetry of the Min Max values 2 Goes Buffer Self timed if desired Selecting 1 toggles between Enable and 3 Redundant Tx Mode Disabled Disable Esc Back to GOES Menu lt ESC gt lt CR gt GOES Transmitter CS HDR ee con 2 Enable Transmitter 3 Goes Data Collection Disabled Current status of GOES transmissions Disabled See section 4 Edit GOES Log Functions 5 1 1 1 Select 2 Enable Transmitter to begin transmissions 5 Display GOES Log Table 6 Xmit Random M
59. Failsafe Note the 1 gt Select 3 3 lt CR gt Disabled following Goes Data Collection is currently online This indicates that the PDAS III will load data into the SAT HDR for transmission If Goes Data Collection is offline transmissions will be disabled because data will not be transffered to the SAT HDR buffer NOTE data is always logged regardless of whether Goes Data Collection is online or off line The next self timed transmission will take place in 0 hours 17 minutes and 52 seconds 153 153 153 indicates that the Random Mode is disabled and is thus not scheduled to transmit As per the documentation for the SAT HDR transmitter the Random Mode is automatically enabled disabled as a function of whether the Random buffer is empty or not Random buffer empty gt Random mode disabled Random buffer not empty gt Random mode enabled The other condition is that the Random channel must be set to a valid non zero value The SAT HDR transmitter Self Timed buffer is currently empty As explained in section 7 DIRECT COMMUNICATIONS COMMANDS GOES BUFFER COMMAND the PDAS III loads the Self Timed transmitter buffer in packets of up to 96 bytes as the local GOES transmit buffers are filled At two minutes prior to transmission all remaining data is loaded into the SAT HDR In the example above Buf Size 0 because the PDAS GOES buffers are yet to be flushed into the transmitter To view the contents of any
60. Fortunately the BOOT LOADER which allows the user to upload new programs is stored in non volatile memory in the AT89S8252 Start up the logger and load a new program using the BOOT LOADER See 4 2 Once the program is loaded select First Time Initialize from the BOOT LOADER menu This is to ensure that the unit is properly initialized 5 Ensure that the logger is properly initialized and functional by communicating via your terminal which is connected to the programming port 38400 baud 8 data bits 1 stop bit no parity but with hardware flow control 6 Set the date and time 7 Reassemble the logger enclosure The 9 volt battery that is included with option PSE built in shaft encoder serves to ensure continuous power to the shaft encoder which enables absolute tracking in the event of power interruptions Unlike the Lithium battery the 9 V unit does NOT draw current continuously but rather only when the primary power source has been interrupted Therefore its life expectancy is entirely dependent on its use Replace when the voltage drops below 7 V A NOTE REGARDING RETURNS AMASS Data will gladly answer any question with regards to the operation of its products If you believe a product is defective fill in the Return Authorization Form on line at http www amassdata com Our technical personnel will then contact you to either troubleshoot the equipment or advise you to send it to the factory Equipment returned to
61. HDR Diagnostics 00s Nan Men 2 Enable Transmitter 3 Display GOES Log Table 4 Edit GOES Log Functions 5 Xmit Random Message M Main Menu gt gt 1 lt CR gt GOES DIAGNOSTICS 0 Current Configuration 1 Current GOES Time hh mm ss 2 Current Status 3 Last Message Status 4 Insert String to GOES Buffer 5 Error Status 6 Reset Error Counter M Main Menu The user is thus presented with choices that enable a complete diagnostics of the GOES gt Use 0 Current Configuration to display the GOES set up as follows 0 lt CR gt GOES Address 48161450 Self Tmd Channel 9 100 Tx Interval 00 03 00 00 Offset Time 00 57 00 Tx Window sec 60 Short Pre Long Int Random Channel 9 100 Tx Interval 00 20 00 Short Int If the above is different from the intended configuration select 0 Initialization to make any necessary changes 5 1 1 Main Menu GOES CSHDR SETUP 5 12 gt Select 1 Current GOES Time hh mm ss as follows 1 lt CR gt GMT Time 12 09 00 RTC Time 08 09 00 lt CR gt Note that the PDAS III clock is synchronized to the GOES transmitter clock one minute following every transmission The transmitter itself uses a GPS clock gt Select 2 Current Status as follows 2 lt CR gt Goes Data Collection Online Self Timed Status Time to Next Xmt 00 00 17 52 00 19 Buf Size 0 Self timed Random Status Time to Next Xmt 153 153 153 Buf Size Random 0 GPS AcqTm 02
62. I 12 parameter WV was logged at 1 hour intervals as requested 12 35 00 13 35 00 14 35 00 etc e The parameter VB was logged at 1 hour intervals as requested 12 30 00 13 30 00 14 30 00 etc e No min max entries appeared in this download because the Min Max Start Time was defined as 23 55 in this example whereas the current time as per the header information is 14 52 32 SAME EXAMPLE BUT WITH THE LOG FILE FILTER INVOKED UPLOAD Number of Records xxxx 12 lt CR gt AMASS Data Technologies Inc PDAS Firmware c William P Thomas 1996 97 98 DATE 2001 08 11 TIME 14 52 32 UNIT ID NO T359478 SITE DESCRIPTION BILL S HOBBIT HOLE 2001 08 11 Only HG is retrieved It is assumed here HG 0 000 12 33 03 that the filter was defined for parameter HG HG 0 000 13 33 03 Define the log file filter from 6 system setup HG 0 000 14 33 03 gt 0 Log File Functions gt Selection 2 Retrieve from date allows the user to retrieve records based on the date of entry 2 lt CR gt Retrieve Archive back to YYYY MM DD 2001 08 15 lt CR gt All records dating from midnight of 2001 08 15 to the latest entry would then be archived gt Item 3 Log File Capacity is very useful for sensor setup and log file management It determines the storage capacity in days based on the sensor setup as it appears in the SENSOR LOG TABLE It also indicates the percentage of storage sp
63. LOG TABLE 5 15 5 3 Main Menu SENSOR LOG TABLE This selection requires PROGRAM password clearance see section 5 MENU TREE REFERENCE Selecting item 3 SENSOR LOG TABLE from the Main Menu displays the following sub menu SENSOR LOG TABLE 0 Display Log Table 1 Display Equation Setup 2 Add Edit Sensor 3 CLEAR Log Slot A All 4 Data Processing Enabled M Main Menu This is where the logging schedule of sampled data is set up It is also where the conversion equations are defined as shown in section 5 3 3 The Sensor Log Table which presents the setup parameters in a tabular format lists the sensors and their corresponding logging parameters such as sampling rates and time intervals for both log entries and min max entries gt gt Here is an example Sensor Log Table as displayed with item 0 Display Log Table Slot Log Sensor Sampling Start Time I B Logging Min Max MM No Enable Command Label Rate Av Cap Rate Rate Time Log 0 1 1A1M0 1 HG 00 05 00 12 33 00 l 01 00 24 00 23 55 1 0 07 VB 00 10 00 12 30 00 l 01 00 00 00 hh mm 2 0 1A2M0 1 WV 00 01 00 12 35 00 l 01 00 00 00 00 00 3 1 1A1M0 1 QR 00 15 00 12 36 00 l 01 00 00 00 hh mm 4 0 00 00 00 hh mm ss l 00 00 00 00 hh mm 5 0 00 00 00 hh mm ss l 00 00 00 00 hh mm 6 0 00 00 00 hh mm ss l 00 00 00 00 hh mm 7 0 00 00 00 hh mm ss l 00 00 00 00 hh mm 8 0 00 00 00 hh mm ss l 00 00 00 00 hh mm 9 0 00 00 00 hh mm ss l 00 00 00 00 hh mm 10 0 00 00 00 hh mm ss l 00 00 00 00 hh
64. MANDS The PDAS supports a number of Direct Communications Commands By Direct Communications we refer to communications that do not take place within the menu system Simply exit the menu with 7 exit and try these commands IDENTIFICATION COMMAND Command I lt cr gt Response lt identification string gt Example Command I lt CR gt Response AMASS Data Technologies Inc PDAS MDM C209 Therefore the unit is a PDAS data logger and is running the MDM firmware version C209 FORWARD SDI 12 COMMAND Command F lt SDI 12 command gt lt cr gt Response lt proper SDI 12 response gt Example You wish to determine the current SDI 12 address of a shaft encoder connected to SDI 12 channel A then change its address to 2 Command FA lt CR gt Response 0 Command FAQA2 lt CR gt Response 2 DIRECT MEASUREMENT COMMAND command M lt CR gt where sensor slot number response lt date of last sample gt lt time of last sample gt lt sensor label gt lt value of last sample gt example The parameter HG is allotted to sensor slot 1 and you wish to make a real time measurement Type this Command M1 lt CR gt Response 2001 07 16 15 37 55 HG 9 123 Rev E loggers provide realtime measurements with the M command Previous versions of the PDAS loggers only returned the most recent sample with the M command GOES BUFFER COMMAND command G lt CR gt where sensor slot number resp
65. Menu In addition the user would normally select 1 Diagnostics from the GOES main menu in order to establish the status of the transmitter set up Please refer to 5 1 1 2 DIAGNOSTICS GOES Transmitter CS HDR Se eon 2 Enable Transmitter 3 Goes Data Collection Disabled Current status of GOES transmissions Disabled See section 4 Edit GOES Log Functions 5 1 1 1 Select 2 Enable Transmitter to begin transmissions 5 Display GOES Log Table 6 Xmit Random Message M Main Menu 5 1 1 Main Menu GOES CSHDR SETUP 5 10 What follows is an example of an initialization of the GOES SAT HDR transmitter in RANDOM MODE with the following parameters e Transmission channel 9 e Random interval 20 minutes e Satellite link parameter Short Link Interleaver NOTE Data that is to be transmitted in Random Mode must be so configured using 5 Display GOES Log Table from the GOES Main Menu as per section 5 1 1 0 lt CR gt GOES Initialization NOTE ALL TRANSMISSIONS WILL BE DISABLED Press Enter to Continue ESC to go back lt CR gt GOES INITIALIZATION 0 Set Date amp GMT Offset 1 Set GOES Platform Address 2 Self timed Mode 3 Random Mode M Main Menu gt 3 lt CR gt Select the desired bit rate Here the default of 100 Select Bit Rate 1 t baud has been accepted 1100 2 300 3 1200 lt CR gt Enter Random Xmir Channel No 1 266 09 lt CR gt Enter Random Transmit Interval hh mm ss 00 20 00 lt CR gt Enter
66. Mi MASS DATA ECHNOLOGIES INC Operational and Maintenance Manual for Pliant Data Logger Product Line PDAS IIII amp Options HDR MDM PSE PSE D Hardware Revision H Original release December 13 2006 Updated August 11 2008 Web page at http www amassdata com List of Amendments Amendment Reason or comments Date Affected pages Original Firmware 3 0 for PDAS III rev H Dec 13 release 2006 1 Clarify difference between Event Counter 1 August 11 1 2 4 8 10 1 and 2 i e switch closure vs pulse counting 2008 List of Amendments Conventions used in this manual Given that the PDAS data logger features a built in menu system this manual provides many examples of exchanges between the user and the logger In order to easily distinguish between characters that are displayed by the logger and those that are entered by the user the following convention has been adopted 2 lt CR gt Aa ee Select Log Slot 0 15 Font used to denote operator s input R e a SELECT SENSOR TYPE 0 Internal Sensor 1 SDI 12 Sensor For Switched 12V Enter lt Font used to denote the output of the S0 for Internal Sensors data logger S1 for SDI 12 Sensors 1 lt CR gt ee 7 Operator input lt CR gt denotes the Enter key that is the Carriage Return character Chapter 5 contains detailed descriptions of t
67. ND These are the battery power source connections SDI 12 ports A amp B Each of these ports consists of a data line 12V and ground RJ11 TELEPHONE CONNECTOR Only applicable to models that have a built in modem i e option IMDM or MDM V Note that the connector appears on all models PROGRAMMING PORT Serial port for connection to a computer for set up of the logger and direct retrieval of data The default settings for this port are 38400 baud 8 data bits 1 stop bit no parity FUSES These should be 2A These are replaceable 8 4 Jumper Configuration 8 11 8 4 Jumper Configuration 8 4 1 of SDI 12 Channels Refer to App F for locating the various jumper blocks The PDAS loggers include two SDI 12 channels These channels are configured for standard SDI 12 sensors by default However they may also be setup for use with SDI 12 RS485 sensors This configuration is accomplished via the proper jumper selection CHANNEL A Locate JB5 and JB13 Note that JB5 is duplicated on these boards Locate the JB5 with three pins as shown below 0S JB13 for standard SDI 12 Set JB5 to HC and install JB13 eee JB5 HC 485 ee JBI3 for SDI 12 RS485 Set JBS to 485 and remove the jumper in JB13 e eF JB5 HC 485 CHANNEL B Locate JB6 and JB14 Note that JB6 is duplicated on these boards Locate the JB6 with three pins as shown below 03 B14 for standard SDI 1
68. OMMUNICATIONS COMMANDS seesseceesseceessecessscosscoeessoceesseceecsecssocseessoceessecessseesssseessoceesse 7 1 TA SHORT FORM MENU 0 cece cccccccccccccccccececececececececececececececececececeeeceeecesesesesesesesesesesesesesesecesececeeececeeecececs 7 7 8 INSTALLATION lt s cirssrisrssstessassosessrossassaaaaonss hausto ss Caesarii paasa t So Eoas Soas r SE ESSC STERSE SEES e CSO SSE SE rae eseis 8 8 Sule MECHANICAL a R a aS a r EREE E RE 8 8 81 1 Shaft Encoder Setups cesceucic fox e a r E aa E E S 8 8 1 AMASSER PDAS III Loggers 1 4 Sidi JATECTRICA Lb ott ones tel EE E iets Mele sid sh ets Se AL E N Nast 2k SA 8 8 8 2 1 PSE Models is iccisseiili desl esihieia tinted a ell aided Bice eters de alae eee aaa 8 9 8 2 2 HDR Models ssi ERE E ERR pees 8 9 8 2 3 PMDM Model Sini aed tented intel klied E E tial ehhh Aided E aa 8 10 8 2 4 JHADR MDM models 03 3 2 desc cilities eae Bae eine altel eislate aed alee 8 10 8 3 CONNECTORS CABLES amp TERMINAL STRIPS ccccccccccecsssssececececsessaececececeeseaececececeeseaaeaeeeeceeesennsaeeeeeeeenes 8 10 SA JUMPER CONFIGURATION niina aea chica vesash vote cancbecs ceeve der carenedem ecole T E AE dep EAS 8 12 8 421 32 0F SDIE12 Chantiels i 2c stead oat ca E ail ap dim ia el E N i ae 8 12 8 4 2 MDM First Time Initialization cei ccesceseesecseeseceseeeceseceeesecnevsccsaeeeeaecaeesecnessecsaseeesaecseeseeneserenaeeees 8 13 9 MAINTENANCE noit o eae R E
69. ON Utopia 2001 08 12 VB 12 012 06 30 05 HG 0 973 06 33 03 Command for yielding data in Environment Canada Tabular Format comma delimited The download filter was not invoked in this instance no f flag see examples in the Ex 2 next section LR AMASSER e 40 lt CR gt AMASS Data Technologies Inc PDAS M 682 Firmware c William P Thomas 1996 97 98 99 2000 2001 DATE 2001 08 12 TIME 10 25 36 UNIT ID NO 01 SITE DESCRIPTION Utopia DATE TIME HG VB 2001 08 12 06 30 05 99999 12 012 2001 08 12 06 33 03 0 973 99999 7 DIRECT COMMUNICATIONS COMMANDS 7 4 LOG RETRIEVAL BY DATE COMMAND command LD lt Entry password gt lt DATE of oldest record to be downloaded gt lt CR gt e yields data in the format currently set from the menu system Optional command LD lt Entry pwd gt t lt col delimiter gt s l e f lt DATE of oldest to be downloaded gt lt CR gt e meaning of flags is as follows t lt col Delimiter gt tabular Excel Lotus format using specified column delimiter Note that the deli miter character is actually typed following the t For example to use the lt TAB gt character as the delimiter press the lt TAB gt key Environment Canada Sequential format Environment Canada Tabular comma delimited format Invoke the download filter The filter is defined from the menu system response lt Downloaded data with Header information gt Ex 1
70. ORS NOTE When connecting a 4 20 mA sensor to the PDAS III be sure to install the proper precision termination resistor in socket R1 R2 R3 or R see section 8 3 Connectors Cables amp Terminal Strips The value of the resistor is a function of the range of the input being used as follows Case 1 0 1V use 50Q Case 2 0 2 5V use 125 Q Case 3 0 5V use 250 Q The input range of any desired channel is configured as shown above To determine the default input ranges of channels 1 to 4 use the A D CONFIGURATION COMMAND see page7 2 5 6 2 ANALOG SENSOR SETUP 5 47 Figure 3 Proper termination resistor for 4 20 mA applications 5 6 2 ANALOG SENSOR SETUP 5 48 EXAMPLE 4 DO NOT CONNECT YOUR ANALOG SENSOR TO YOUR LOGGER YET Connect your analog sensor AFTER you have configured the input range as shown below A sensor requiring bipolar measurements is to be connected to channel 1 The PDAS III rev E later only has one bipolar input range 100mV In order to accommodate ranges greater than 100mV the user must attenuate the incoming signal with a suitable resistive divider using precision resistors tolerance at least 1 Assume that the user requires SV The user must install a resistive divider similar to that shown below in order to attenuate the incoming signal to 100mV e VAS e Figure 4 Attenuation of bipolar signals The user must then configure channel 1 to a range of
71. UTPUT FORMAT 1 0 1 0000 2 0 2 500 3 0 5 000 4 5 000 5 Binary Count 6 4ma Offset Correction 7 Temperature AD34 8 wind Direction 3 lt CR gt Custom Equation Required 0 No 1 Yes 0 lt CR gt The set up is complete The sensor can now be connected to channels 1 and 2 as follows sensor V to 1 and V to 2 To monitor this value simply select channel 1 NOT 2 from the list of Internal Sensors as described 5 45 5 6 2 ANALOG SENSOR SETUP in 5 3 2 INTERNAL ANALOG SENSORS Selecting channel 2 instead of 1 would monitor the potential of V with respect to ground Exiting the menu system and using the command MA reads the current differential value between channels 1 and 2 EXAMPLE 2 this example also appears on page 5 28 DO NOT CONNECT YOUR ANALOG SENSOR TO YOUR LOGGER YET Connect your analog sensor AFTER you have configured the input range as shown below A 0 to 5V sensor is connected to channel 2 and is being used to monitor a tank of pressurized gas You wish to convert the readings to pressure in PSI The measurement range of the sensor is 0 to 3000 psi within the operational output range of 0 5 to 4 5V Assuming that you wish to display to one decimal place proceed as follows SELECT A D Channel 1 2 3 or 4 Single Ended Ch 5 Differential 1 2 6 Differential 3 4 The user selected channel 2 ICR Se SELECT INPUT RANGE 1 100mV 20 1V 3 0 2 5V 4
72. X lt CR gt command is issued for retrieving all 3 Sensor label MAX parameters lt CR gt Enter Value Position 1 9 0 3 lt CR gt ee The user defines the Sensor Label Logging Enter Value Position 1 9 3 lt CR gt Rate and Conversion Equation of the third data S label value Note that the Sampling Rate is not ensor a26 redefined given that a single SDI 12 command is issued for retrieving all 3 parameters 4 3 HOW TO MIN lt CR gt Sensor label MIN lt CR gt Current Time 14 38 45 Enter SAMPLING Start Time hh mm 00 00 00 14 40 00 lt CR gt Enter SAMPLING Start Time hh mm 14 40 00 The configuration is complete The PDAS III will transmit an aM5 command at 14 40 00 and log all three data values that are present in the response The resulting Sensor Log Table is shown below Note that the three desired parameters occupy adjacent slots in the Sensor Log Table Slot Log Sensor Sampling Start Time 1 B Logging Min Max MM No Enable Command Label Rate Av Cap Rate Rate Time Log 0 0 00 00 00 hh mm ss l 00 00 00 00 hh mm 1 0 00 00 00 hh mm ss l 00 00 00 00 hh mm 2 0 00 00 00 hh mm ss l 00 00 00 00 hh mm 3 0 00 00 00 hh mm ss l 00 00 00 00 hh mm 4 0 1A0M5 1 AvG 00 10 00 14 40 00 l 00 10 00 00 hh mm 5 0 mA0M5 2 MAX 00 00 00 hh mm ss l 00 10 00 00 hh mm 6 0 mA0M5 3 MIN 00 00 00 hh mm ss l 00 10 00 00 hh mm 7 0 00 00 00 hh mm ss l 00 00 00 00 hh mm 15 1 00 00 00 hh mm ss l 00 00 00 00 hh mm The meaning
73. XAMPLE 1 For example suppose the aM5 of a SDI 12 sensor returns the average minimum and maximum water level readings With a single aM5 command you wish to retrieve and log the average minimum and maximum and have these appear in the log file with unique labels As always the user selects a sensor slot Select Log Slot 0 15 Note that the sensor slots directly below that 4 lt CR gt chosen must be vacant to be occupied by the additional parameters See next page Enter SDI 12 Command M 0 9 or R 0 9 or C 0 9 M5 lt CR gt Enter SDI 12 Command M 0 9 or R 0 9 or C 0 9 M5 lt CR gt Enter Number of Data Values to be Logged 0 The user wishes to log all 3 3 lt CR gt data values that are retrieved Enter Number of Data Values to be Logged 3 with the M5 command lt CR gt Enter Value Position 1 9 0 1 lt CR gt Enter Value Position 1 9 1 lt CR gt Sensor label The user defines the Sensor Label AVG lt CR gt I YIMO WN Ss Sampling Rate Logging Rate and Sensor label AVG lt CR gt Conversion Equation of the first data Sampling Interval hh mm ss 00 00 00 00 10 00 lt CR gt value Enter Value Position 1 9 0 2 lt CR gt The user defines the Sensor Label Logging Enter Value Position 1 9 2 Rate and Conversion Equation of the second data value Note that the Sampling Rate is Sensor label not redefined given that a single SDI 12 MA
74. You wish to download all records that were logged on this day current day is 2001 08 12 LD AMASSER 2001 08 12 lt CR gt AMASS Data Technologies Inc PDAS M 682 Firmware c William P Thomas 1996 97 98 99 2000 2001 DATE 2001 08 12 TIME 10 25 36 UNIT ID NO 01 SITE DESCRIPTION Utopia It is assumed here that the current data format is set 2001 08 12 i VB 12 012 00 30 05 to Sequential using System Setup gt Log File HG 0 973 00 33 03 ee Functions gt Log File Format VB 12 010 01 30 05 HG 0 973 01 33 03 HG 0 973 09 33 03 If the user had entered LD AMASSER 2001 08 11 lt CR gt the PDAS would download all records that were logged from midnight of December 15 onward Note that the Retrieval by Date function can only be invoked once the clock has gone past midnight at least once 7 DIRECT COMMUNICATIONS COMMANDS 7 5 Ex 2 LD AMASSER f 2001 08 12 AMASS Data Technologies Inc PDAS M 682 Firmware c William P Thomas 1996 97 98 99 2000 2001 DATE 2001 08 12 TIME 10 25 36 UNIT ID NO 01 SITE DESCRIPTION Utopia User specified comma delimited Environment Canada Tabular format with e flag Invoked the download filter with f flag Only parameter HG is retrieved It is assumed here DATE TIME HG lt lt that the filter was defined for parameter HG only 2001 08 12 00 33 03 0 973 2001 08 12 01 33 03 0 973 2001 08 12 02 33 03 0 973
75. a based on the command message Examples of Sequential and standard Tabular are shown below An example of Environment Canada Tabular comma delimited is shown on pages 7 4 and 7 5 ENVIRONMENT CANADA STANDARD TABULAR FORMAT USING lt TAB gt SEQUENTIAL FORMAT COLUMN DELIMITER AMASS Data Technologies Inc PDAS M XXX AMASS Data Technologies Inc PDAS M XXX Firmware c William P Thomas 1996 97 98 Firmware c William P Thomas 1996 97 98 99 2000 2001 DATE 2001 08 10 DATE 1998 12 16 TIME 16 52 32 TIME 10 25 36 UNIT ID NO T359478 UNIT ID NO 01 SITE DESCRIPTION BILL S HOBBIT HOLE SITE DESCRIPTION Utopia 2001 08 11 DATE TIME LABEL HG VB VB 12 012 00 30 00 1998 12 16 00 30 00 VB HG 0 973 00 33 00 1998 12 16 00 33 00 HG 0 973 VB 12 010 01 30 00 1998 12 16 01 30 00 VB HG 0 973 01 33 00 1998 12 16 01 33 00 HG 0 973 VB 12 010 02 30 00 1998 12 16 02 30 00 VB HG 0 973 02 33 00 1998 12 16 02 33 00 HG 0 973 VB 12 009 03 30 00 1998 12 16 03 30 00 VB HG 0 973 03 33 00 1998 12 16 03 33 00 HG 0 973 VB 12 009 04 30 00 1998 12 16 04 30 00 VB HG 0 973 04 33 00 1998 12 16 04 33 00 HG 0 973 VB 12 009 05 30 00 1998 12 16 05 30 00 VB HG 0 973 05 33 00 1998 12 16 05 33 00 HG 0 973 VB 12 009 06 30 00 1998 12 16 06 30 00 VB HG 0 973 06 33 00 1998 12 16 06 33 00 HG 0 973 VB 12 009 07 30 00 1998 12 16 07 30 00 VB HG 0 973 07 33 00 1998 12 16 07 33 00 HG 0 973 VB 12 009 08 30 00 1998 12 16 08 30 00
76. abeled Channel A plus a pseudo SDI 12 port B for connection of the AMASS Data PRF Radio Modem The hardware interface of both channels is configurable jumpers to either standard SDI 12 HCMOS or RS485 One switched 12VDC power port for sensor activation with user definable time delay prior to sampling RS 232 Programming Port programmable from 300 to 19200 baud Separate connectors are provided to support an internal modem and a GOES transmitter Both of these telemetry options may be installed on the logger 1 Mbyte Non Volatile Flash memory Log File providing 32 768 records 32 bytes each Average and Min Max values determined from a user definable block of data number of samples and sampling rate Battery backed memory Two code spaces selectable from the BOOT LOADER see 4 2 Lithium battery back up for 32 kbyte RAM Real Time Clock for date time stamping of data NEMA 4 12 steel environmental casing Complete EMI RMI shielding All user connections are made externally to the casing Firmware Support Providing Support for Modem communications Sensor Log Table with 16 sensor slots for the attached SDI 12 sensors and individual setup for User defined sensor Label Sample period setting minutes seconds Command string for measurement initialization of SDI 12 sensors Conversion equations with Offset and Scale Instantaneous or Average log value record period in hour minutes Minimum Maximum log record period hour
77. able should be something like Slot Log Sensor Sampling Start B Logging Min Max MM No Enable Command Label Rate Time Av Cap Rate Rate Time Log 1 0 07 VB 00 10 00 12 30 00 I 01 00 00 00 hh mm 2 0 1A2M0 1 Wv 00 01 00 12 35 00 I 01 00 00 00 00 00 3 1 1A1M0 1 QR 00 15 00 12 36 00 I 01 00 00 00 hh mm The View Data facility see section 5 2 allows the user to view the contents of captured blocks of data for any given log slot Note the 7 column from the left indicates that Blocks of 10 samples are Captured to the 5 3 1 BLOCK 5 23 capture memory buffer B10C Note that Logging Rate in this context refers to Logging to the capture memory buffer not to the usual log file This memory buffer is always cleared prior to reloading the new samples The Block Capture feature of the PDAS is used with functions that require blocks of data such as the calculation of standard deviation EXAMPLE 4 A solar radiation sensor is to be connected to the PDAS to measure total hourly flux This is to be measured using 720 samples 5 seconds apart logged hourly To obtain total flux the logger must add the 720 samples that take place over the hour and log the result i e the Block Total function Also the raw data must be converted to the proper engineering units This is described in section 5 3 3 and 5 6 2 gt gt 2 lt CR gt Add Edit Sensor Select Log Slot 0 15 0 lt CR gt refer to section 5 3 Sample rat
78. ace remaining This would be a typical display with item 5 5 lt CR gt LOG FILE CAPACITY Storage Capacity 32768 records Storage Capacity 11 66 days Storage Remaining 25 59 This would indicate that the current sensor setup would allow 11 66 days of data acquisition before the memory would be full assuming the log file was empty Since there is currently 25 59 of the storage remaining the memory should endure for 2 98 days Note that although the log file capacity results are determined based on the current sensor setup they are irrespective of whether the slots are active or not The actual endurance therefore will be equal or greater than that displayed Given that the logging patterns are impossible to predict for models with alarm functions the results achieved from the Log File Capacity function may in fact be very different from the actual endurance in such configurations Even in this case however the results are useful for determining the absolute minimum endurance that might transpire 5 4 Main Menu LOG FILE RETRIEVAL 5 33 5 5 Main Menu SENSOR ALARM TABLE This selection requires PROGRAM password clearance see section 5 MENU TREE REFERENCE Item 5 SENSOR ALARM TABLE of the Main Menu displays the Sensor Alarm Table For example Slot Log Sensor No Enable Command Label Trip Value 0 1 1A1M0 1 HG 1 0 1A2M0 1 WV 2 0 15 0 SENSOR ALARM TABLE 1 ADD EDIT Alarm Function 2 CLEAR
79. and benchmarks determine the Enter Sensor Offset 10 000 Pea elevation of the sensor to be 10 000 Therefore an or A for Auto Calculate OFFSET of 10 000 is entered Note that the user lt CR gt may invoke the auto calibrate feature to determine the OFFSET 4 3 HOW TO 4 14 4 3 7 SETUP A WIND DIRECTION SENSOR The PDAS has built in conversion equations and functions that are specific to certain types of sensors Functions can be added that are specific to your sensor by contacting AMASS Data Technologies at sales amassdata com The PDAS provides the following built in functions for wind direction sensors e Conversion of analog signal to a wind direction expressed in units of degrees applicable to potentiometer type sensors e Vector averaging of the data if the average wind direction is desired all wind direction sensors Example Consider a potentiometer type wind direction sensor to be connected to the PDAS You wish to take 24 samples 5 seconds apart beginning at the 58 minute mark and ending at the top of the hour then log the average wind direction of this block of data see section 5 3 1 every hour These sensors require three connections Ground a voltage reference and the sensor output voltage proportional to the wind direction The PDAS provides voltage references of 2 5V and 5V For this example we shall use a voltage reference of 2 5V The range of the analog input that is to be us
80. antaneous 1 Block Averaged wd 2 Block Capture Max 60 samples 3 Block Log Max 60 samples 4 Block Total 1 lt CR gt Enter Number of Samples 24 lt CR gt Logging Interval hh mm 01 00 lt CR gt MinMax Log Interval hh mm 00 00 lt CR gt Select Sensor Equation Type 0 None 1 value Scale Offset 2 value Offset Scale xP Polynomial xU User Defined XB Block Functions where x 0 10r2 1 lt CR gt Enter Sensor Scale or A for Auto Calculate 0 0196 lt CR gt Enter Sensor Offset or A for Auto Calculate 0 000 lt CR gt Current Time 12 36 17 Enter SAMPLING Start Time hh mm ss It s complete Enter this as shown The D is required to log the difference between the current count and the previous count rather than cumulative number of counts 12 58 00 lt CR gt Use VIEW DATA section 5 2 to see the wind speed in real time The View Data facility supports the differential mode of Event Counter 2 so that frequency type measurements such as described here may be viewed in real time 4 3 HOW TO 4 18 5 MENU TREE REFERENCE ALL PDAS loggers have a user friendly built in menu system for configuration and retrieval of data When using the menu system the following characters may be used to ease the operation of the PDAS Table 2 Special characters for use with rev E and later PDAS loggers Character Action lt BACKSPACE gt The usual function that is delet
81. ator is used to support the ability of SDI 12 commands to return several parameters and specifies the desired parameter to be logged among those returned The user can for example specify that the seventh parameter be logged by using 7 Note that the PDAS loggers automatically issue aDO aD1 commands until the desired value is retrieved Note that the PDAS allows the user to log up to 9 separate parameters with a single SDI 12 command for multi parameter sensors The PDAS allows the user to do so while specifying a distinct Sensor Label Logging Rate Min Max Rate and Conversion Equation for each parameter To see an example of multi value SDI 12 mode refer to section 4 3 5 In the sensor log table above this field is set to AI1MO 1 in slot 0 because aMO is the correct command for measurement initiation of the SDI 12 sensor mounted on channel A at address 1 and we desire the first parameter of those returned hence 1 Sensor Label This is the label which will appear in the log file and is the only means of identifying a given sensor in the file The string must be no longer than 8 characters Sampling Rate The sampling rate is expressed in hours minutes and seconds Therefore the shaft encoder of slot 0 example above is sampled at every 30 seconds Start Time This is the user specified time when the sampling will begin In the event that a power interruption takes place the logger
82. backup provides absolute tracking of the shaft even with intermittent power The battery provides backup for a total of approximately 7 days NOTE The 9V battery on PSE models is for backup of the shaft encoder sensor NOT THE DATA LOGGER FOR REV H SYSTEMS refer to the Serial Number THE 9V BACKUP IS PROVIDED WHEN THE BATTERY IS INSTALLED AND MAKING CONTACT IN THE HOLDER There is no jumper to install as with previous models Note that the battery must be installed AT THE TIME OF INSTALLATION when the main power source is connected to the system otherwise the PSE board will be drawing current from it and drain it within 7 days 8 2 2 HDR Models Models with GOES telemetry are equipped with a Seimac SAT HDR High Data Rate transmitter The SAT HDR is internally connected to the PDAS III for communications and power All connections to the SAT HDR and PDAS II that are to be made by the user are done externally There is no need to open the enclosure except to install the 9V battery in models with the PSE option In fact it is advisable to not open the enclosure in the field especially in high humidity environmental conditions The connections to be made to the SAT HDR are shown in Figure 6 They consist of a GPS antenna connected to the female MCX connector as well as a YAGI antenna connected to the RF connector The requirements of the antennas is described in the manual for the SAT HDR which is included with the logger Note
83. calculates a new Start Time so that the sampling and logging remain synchronized This new calculated Start Time is then displayed in this column The log slot is automatically disabled i e logging is rendered inactive until the onset of the calculated Start Time NOTE 1 Always specify a Start Time of 00 00 for slots that are to be triggered automatically by an alarm see section 5 5 Main Menu SENSOR ALARM TABLE NOTE 2 It is advisable that the Start Times for the various sensors be staggered by one second to ensure the integrity of the data Instantaneous Block Average Capture Log These flags indicate the type of logging taking place An example of instantaneous type logging is shown on the next page Block logging including averaged data is covered in section 5 3 1 5 3 1 BLOCK 5 17 Logging Rate The rate at which samples are logged This value is expressed in hours and minutes Note that the PDAS has the ability of logging instantaneous or average values When logging instantaneous values the unit simply logs the most recent sampled data from the sensor This mode of logging is denoted by a I next to the time interval in the sensor log table as shown above When logging average values the unit calculates the mean of the data sampled from the sensor since the last logged entry This mode of logging is indicated by A Min Max Rate The time interval between min max entries is expressed in
84. custom cable to connect the modem to the Programming Port Note that the Programming Port baud rate must then be set to match that of the modem the maximum being 9600 The 1 AT init string and 2 AT hangup string are used to customize the initialization and hang up strings of the modem 5 6 2 ANALOG SENSOR SETUP 5 43 5 6 2 ANALOG SENSOR SETUP The on board Analog Input Subsystem AIS of the PDAS III allows it to monitor and log external analog inputs as well as maintenance parameters This section describes how the AIS is configurable to those inputs As with all other configuration for the PDAS III the AIS set up is stored in the EEPROM as well as the NVRAM and is thus non volatile For a description on how to set up these values for logging refer to 5 3 2 INTERNAL ANALOG SENSORS Channels 5 6 7 and 8 are dedicated and pre configured to the following maintenance parameters e Channel 5 is 0 20V for the solar panel or the 9V internal battery on models with option PSE D e Lithium battery voltage on channel 6 0 5V e Main voltage supply on channel 7 0 20V e Internal temperature on channel 8 0 2 5V The remaining channels that is 1 to 4 are for external inputs and are configurable to the operator s needs The input ranges of these channels are user configurable on the PDAS III rev E and F as follows 100mV 0 1V 0 2 5V and 0 5V Otherwise the user may select the appropriate channel based on its default input ran
85. e 1 value Scale Offset 2 value Offset Scale xP Polynomial xU User Defined xB Block Functions where x 0 10r2 Select 1 then enter the proper values for SCALE and OFFSET as shown above Note that these values will appear in the appropriate columns in the Sensor Log Table EXAMPLE 2 A raw data pressure sensor is to be connected to the PDAS III The nominal output of the sensor is 0 to 5V and is being used to monitor a tank of pressurized gas You wish to convert the readings to pressure in PSI The measurement range of the sensor is 0 to 3000 psi within the operational output range of 0 5 to 4 5V The values for Scale and Offset are simply determined by the properties of the linear sensor in question SCALE SLOPE Prs Po max voltage min voltage 3000 0 4 5 0 5 SCALE 750 OFFSET Po SCALE X min voltage 0 750 X 0 5 OFFSET 375 These values are defined when inserting the sensor into the Sensor Log Table Therefore to convert the raw data of this sensor to units of PSI the user must the SCALE and OFFSET shown above When prompted Select Sensor Equation Type 0 0 None 1 value Scale Offset 2 value Offset Scale xP Polynomial xU User Defined XB Block Functions where x 0 10r2 Select 1 then enter the proper values for SCALE and OFFSET as shown above Note that these values will appear in the appropriate
86. e controller NOTE SDI 12 sensors may return up to 9 data values according to its Specification 3 BUS PROTOCOLS 3 1 4 OPERATION 4 1 Getting Started Begin by installing the PDAS III logger as per section 8 For a quick test put the PDAS III on the bench and power it up using a 12V source via the supplied cable The power connections must be as shown in Figure 7 on page 8 11 The PDAS III can now be configured for logging using a direct connection to the Programming Port see Figure 7 using the supplied Programming cable or via modem for loggers so equipped MDM or MDM V in the product name As mentioned in the introduction to this manual the PDAS III does not have host OS requirements All that is required for communications to the PDAS III logger is a dumb terminal emulator with capture capability What follows is the procedure for initiating a dumb terminal emulator with Windows XP as this is the most commonly used OS on the market at this time A similar procedure can be accomplished on any other OS that allows the user to run a dumb terminal emulator e Click on Start then go to Programs gt Accessories gt Communications then click on HyperTerminal e Click on the Hypertrm icon e Type the name amasser in the window and select an icon Click OK The steps that follow differ slightly whether the user is connecting via modem or without modem Follow these steps WITHOUT MODEM e In the window labeled Co
87. e every 10 seconds real time Note that the period may be set within 1 to 60 seconds and that the default setting is 5 seconds The VIEW DATA facility is covered in section 5 2 Select 2 Change PASSWORD for changing the ENTRY and PROGRAM passwords see 5 MENU TREE REFERENCE on p 5 2 NOTE The user has the option of disabling the Entry level protection simply by specifying that the password be equal to spacebar The PROGRAM level protection cannot be disabled As mentioned in section 5 MENU TREE REFERENCE the ENTRY level is for viewing data and the PROGRAM level is for configuring the logger Select 3 Sw 12V ON Delay for configuring the Switched 12V output As mentioned in section 5 3 this output is used for automatically switching the 12Volt supply to sensors that consume relatively large amounts of power if left on continuously The Switched 12V output is configurable in that the time delay between the power being switched on and the emission of the measurement command is user definable Longer delays are used for sensors that have long response times To change the Switched 12V time delay select item 3 Sw 12V ON Delay as follows 4 lt CR gt Enter 1 255 50 msec count 20 50 lt CR gt Enter 1 255 50 msec count 50 lt CR gt The time delay was changed from 1 second 20X 50msec 1second to 2 5 seconds SOX50msec 2 5 sec Note that the sensor must be connected to the switched 12V output
88. e is that list SELECT SENSOR 1 2 3 or 4 Single Ended Ch 5 Aux 0 20 V 6 Lithium V 7 Main Pwr V 8 Internal Temp 9 Differential 1 2 10 Differential 3 4 11 Event 1 D 12 Event 2 D 13 PSE Shaft Encoder Item 13 PSE Shaft Encoder may or may not appear in the list of internal sensors depending on the version of software being used When present it is selected to set up the built in shaft encoder that is included with units equipped with option PSE or PSE D Otherwise as noted in the previous section selection 13 PSE Shaft Encoder may be used with PDAS units NOT equipped with PSE D if the user wishes to configure an external SDI 12 sensor as internal To do this simply set the external SDI 12 sensor to address A2 and select 13 PSE Shaft Encoder when entering the sensor into the Sensor Log Table The user can henceforth configure this sensor using the Internal Sensors submenu as shown in 5 6 Main Menu SYSTEM SETUP Adding an Internal analog Sensor to the Sensor Log Table is identical as for external sensors as shown in section 5 3 Main Menu SENSOR LOG TABLE Here is an example The user wishes to monitor the primary source voltage by logging its instantaneous value six times a day and logging its min max value once a day From the SENSOR LOG TABLE submenu gt gt 2 lt CR gt Add Edit Sensor Select Log Slot 0 15 1 lt CR gt SELECT SENSOR TYPE 0 Internal Sensor 1 SDI 12 Sensor For Swi
89. e set to 5 seconds Sampling Interval hh mm ss 00 00 00 00 00 05 lt CR gt Sampling Interval hh mm ss 00 00 05 lt CR gt Select Log Data Function 0 0 Instantaneous 1 Block Averaged wd 2 Block Capture Max 60 samples 3 Block Log Max 60 samples Select Block Total 4 Block Total e 4 lt CR gt Select Log Data Function 4 0 Instantaneous 1 Block Averaged wd 2 Block Capture Max 60 samples 3 Block Log Max 60 samples 4 Block Total lt CR gt Enter Number of Samples 00 720 lt CR gt tH Specify 720 samples Enter Number of Samples 720 lt CR gt Logging Interval hh mm 00 00 01 00 lt CR gt Logging Interval hh mm 01 00 a a The userepectiestouda 720samples and log the result every hour Log slot 0 of the Sensor Log Table should be something like Slot Log Sensor Sampling Start B Logging Min Max MM No Enable Command Label Rate Time Av Cap Rate Rate Time Log gt 0 1 01 RN 00 00 05 12 00 00 B720T 01 00 1 0 07 VB 00 10 00 12 30 00 I 01 00 00 00 hh mm 2 0 1A2M0 1 WV 00 01 00 12 35 00 I 01 00 00 00 00 00 3 1 1A1M0 1 QR 00 15 00 12 36 00 I 01 00 00 00 hh mm 5 3 1 BLOCK 5 24 5 3 2 INTERNAL ANALOG SENSORS Internal sensors in this context refers to any parameter measured by the on board Analog Input Subsystem AIS that is included with every PDAS III These parameters are listed when the user opts to enter an internal sensor into the Sensor Log Table for logging Her
90. ect Sensor Equation Type 0 0 None 1 value Scale Offset 2 value Offset Scale xP Polynomial xU User Defined XB Block Functions where x 0 10r2 lt CR gt Current Time 16 21 02 A Start Time of 17 00 01 was Enter SAMPLING Start Time hh mm ss 00 00 00 entered The first sample will occur 17 00 01 lt CR gt lap thak time Current Time 16 21 27 Enter SAMPLING Start Time hh mm ss 17 00 01 lt CR gt Current Time 16 21 Enter MinMax Start Time hh mm 00 00 A Min Max Start Time of 17 55 was 17 55 lt CR gt entered Current Time 16 21 Enter MinMax Start Time hh mm 17 55 lt CR gt 4 3 HOW TO 4 12 Enter 1 again for the value position because we are using the same data for computing the Enter Value Position 1 9 average 1 lt CR gt Enter Value Position 1 9 1 lt CR gt a i Sensor label A distinct label is specified for the average HG_AVE lt CR gt Wt Sensor label HG_AVE lt CR gt Select Log Data Function 0 0 Instantaneous 1 Block Averaged wd 2 Block Capture Max 60 samples 3 Block Log Max 60 samples 4 Block Total Select Block Average 1 lt CR gt Select Log Data Function 1 0 Instantaneous 1 Block Averaged wd 2 Block Capture Max 60 samples 3 Block Log Max 60 samples 4 Block Total lt CR gt Since the sampling rate is 5 minutes and the logging rate is once an hour the Enter Number of Samples 0 number
91. ed for this sensor should match the voltage reference in use in this case 2 5V Therefore PRIOR TO CONNECTING THE SENSOR configure the analog input as follows MAIN MENU gt SYSTEM SETUP gt SENSOR SETUP gt EXTERNAL A D CHANNELS 1 lt CR gt SELECT A D Channel 1 2 3 or 4 Single Ended Ch 5 Differential 1 2 Select an unused channel 1 2 3 or 1 lt CR gt SELECT INPUT RANGE 1 100mV 20 1V i es Configure the range to 0 2 5V because the 2 5V 3 lt CR gt voltage reference is being used in this example SELECT OUTPUT FORMAT 1 0 1 0000 2 0 2 500 3 0 5 000 4 5 000 5 Binary Count 6 4ma Offset Correction The 0 to 2 5V signal is to be converted to a 7 Temperature AD34 8 Wind Direction 8 lt CR gt a eee ee eS Custom Equation Required 0 No 1 Yes Select No because no further conversion is necessary 0 lt CR gt NOW connect the sensor see 8 3 e Ground wire to the terminal labeled AGND e Voltage reference wire to the terminal labeled 2 5V ref e Output wire to the terminal labeled AIN 1 wind direction in units of degrees Now configure the PDAS for logging the data Do this as follows MAIN MENU gt SENSOR LOG TABLE gt ADD EDIT SENSOR 4 3 HOW TO 4 15 Select Log Slot 0 15 Select an unused slot Eg 4 4 lt CR gt SELECT SENSOR TYPE 0 Internal Sensor 1 SDI 12 Sensor For Switched 12V Enter S0 for Internal Sensors
92. ed to 3 decimal places This practice eliminates the need for the decimal adjusting routines to be invoked and ensures no loss in precision as a result of the operation e ALWAYS enter numbers with the appropriate algebraic sign preceding it a or e C3 was entered as 208 1 2F First note that the parentheses must be present Also note that the format being used here is that of Reverse Polish Notation that is OPERAND1 followed by OPERAND2 followed by OPERATOR Where OPERAND1 208 1 OPERAND2 2 meaning the current data stored in log slot 2 and the OPERATOR is F that is multiply The operators available to the PDAS are as follows Operator Description F Addition F Subtraction F Multiplication F Division 5 4 Main Menu LOG FILE RETRIEVAL 5 4 Main Menu LOG FILE RETRIEVAL Item 4 LOG FILE RETRIEVAL of the Main Menu is used to retrieve records from the log file The user is prompted with the following options Log File Functions 0 Status 1 Retrieve No of records 2 Retrieve from date f append to invoke filter M Main menu 3 Log File Capacity The log file is downloaded with either item 1 or 2 Item 1 Retrieve No of records prompts the user for the number of records that he she wishes to retrieve i e display whereas item 2 Retrieve from date prompts the user for a date from which all records will be retrieved up
93. ell as captured blocks of data Section 5 3 corresponds to selection 3 of the main menu This all important section is where the user configures the logging schedule of all sensors including any user defined conversion equations Section 5 4 corresponds to selection 4 of the main menu This section is where the user downloads the logged data Section 5 5 corresponds to selection 5 of the main menu This is where the user configures alarm functions The programmable alarms have the ability of triggering another function when user defined conditions are met Section 5 6 corresponds to selection 6 of the main menu This section provides miscellaneous functions with respect to setting the logger ports SDI 12 transparent mode 1 1 Standard Features 1 1 1 1 Standard Features The following summarizes the standard features of the PDAS III product line Hardware Features Description On board Analog Input System for monitoring the following maintenance parameters Primary source voltage Lithium battery voltage and Internal temperature Also pre configured with four external 0 5V inputs These may also be configured to 0 2 5V 0 1V or 100mV The A D provides these inputs with 16 bit resolution Outputs of 2 5 amp 5V reference are provided Includes 2 event counters port 1 for switch closure port 2 for pulses Plus the following One SDI 12 Serial Digital Interface 10 sensor support port l
94. ensor using 3Sensor Log Table gt 2 Add Edit Sensor For example if an analog sensor is connected to the 12V SW the user would proceed as follows from 2 Add Edit Sensor 2 lt CR gt Select Log Slot 0 15 Select a slot from 0 to 15 0 lt cCR gt w SELECT SENSOR TYPE 0 Internal Sensor 1 SDI 12 Sensor For Switched 12V Enter S0 for Internal Sensors Enter SO for switched analog sensors S1 for SDI 12 Sensors S0 lt CR gt SELECT SENSOR TYPE S0 0 Internal Sensor 1 SDI 12 Sensor For Switched 12V Enter Selections that are entered are always echoed and SO for Internal Sensors displayed for the user Press Enter to accept or S1 for SDI 12 Sensors type a new value lt CR gt e ea In order to obtain reliable readings the user must ensure that the time delay between the onset of power and the sampling of the sensor is adequate to allow for its stabilization This time delay is user configurable from 6 System Setup gt 2 Logger Setup gt 4 Sw 12V ON Delay refer to 5 6 gt 2 Logger Setup The switched time delay is settable from 50 msec up to 12 75 sec Reference to the manual of the sensor should provide an appropriate settling time However one technique to establish this is to use the block capture function from within Sensor Log Table see 5 3 1 p 5 21 To do this proceed as follows 1 Set the Sampling Rate to 1 second 00 01 When prompted Select Log Data Function choose Block Capt
95. ent entry Logging Rate 15 minutes Time prior to Tx of the most recent reading 10 min Sensor label Stage level or Gauge height HG The example depicts the stage level HG being recorded at every 15 minutes The first entry in this line 0 6280 was logged 10 minutes prior to transmission that is at 00 47 GMT The second 0 7293 was logged 15 minutes prior logging interval is 15 minutes to the first reading that is at 00 32 GMT The third 0 7800 at 00 17 GMT and so on As explained in section 5 3 Main Menu SENSOR LOG TABLE the Sensor Log Table is where the logging schedules are defined In order to accomplish the data collection shown above the Logging Rate would be set to 00 15 and the Sensor Label would be HG From the above we could also conclude that the PDAS HI logged average values of the stage level given that the data is recorded with four decimal places instantaneous values appear with three Note that lines with single entries are Min Max values Here is the Max reading as it appears above HG 170 180 0 780 Be o o o Maximum reading Min Max Interval 180 min Occurrence of Max 170 min prior to Tx Sensor Label Note that the value for Min Max Rate is 180 minutes in this example Refer to section 5 3 regarding the Min Max Rate The reading in this case was taken 170 minutes prior to transmission that is at 22 07 GMT As explained in section 4 2 3 the Min Max
96. er entry will consist of two bytes the command that caused the error and the error code In the case of a timeout error the command byte will always be 0 The maximum amount of time that the SAT HDR GOES will wait for a command is programmable through DCPCOMM The error register will contain 4 most recent entries CODE DESCRIPTION 0x00 No error 0x01 Illegal Command 0x02 Command rejected 0x03 Ilegal checksum or too much data 0x04 Timeout or too little data 0x05 Ilegal parameter 0x06 Transmit buffer overflow Internal Fault Codes In addition to communication errors the SAT HDR GOES will post internal faults to the error register The two byte posting format will be followed with the command byte set to Ox1f The internal fault codes are listed in the following table CODE DESCRIPTION 0x10 Hardware Fault 0x11 GPS fix fault 0x12 Power Supply fault 0x13 Software fault 0x14 Failsafe fault 0x15 GPS Time Synchronization fault 0x16 SWR RF load fault SAT HDR GOES Status LED The status LED on the SAT HDR GOES serves many functions On power up it will cycle through red green and yellow while performing internal diagnostics In the event that the failsafe is tripped it will flash red In the event that other faults are detected it will flash yellow While online the LED will be solid green while the GPS subsystem is acquiring a fix solid red while transmitting or it will be off while in a low power state Itis possible to determi
97. es the previous character Multiple lt BACKSPACE gt characters may be used lt ESC gt Return to the next highest menu in the hierarchy The lt ESC gt character is ineffective if the user is currently executing a menu selection such as adding a sensor to the Sensor Log Table lt CTRL Z gt This escape sequence is used to interrupt the downloading of data lt CTRL C gt Resets the communications status of both the GOES modem port and the Programming port to a receive state The lt CTRL C gt escape sequence may be used from either of these ports lt CTRL C gt is used to recover from a communications breakdown if the logger is non responsive because one of the ports is in a transmit loop The PDAS uses a password protection system for safeguarding the unit from intruders This system comprises two levels of access entitled ENTRY and PROGRAM Assuming the user has set up a dumb terminal emulator as explained in section 4 1 Getting Started or is using a communications program such as PROCOMM he she may then initiate the menu by simply pressing the enter key and entering the correct ENTRY password The default ENTRY password is AMASSER yes it is case sensitive Failure to enter the correct password will prevent entry into the menu system as follows the bold lettering represents the program s output whereas the regular font represents the user s input ENTRY password plea
98. essage M Main Menu 3 lt CR gt Slot Log Sensor Log GOES MIN MAX BUFFER Redundant No Enable Command Label Ratio Data Selection Mode 0 1 1A1M0 1 HG 2 Enabled Self timed Disabled 1 0 07 VB 04 Enabled Self timed Disabled 15 0 01 Enabled Self timed Disabled 5 1 1 Main Menu GOES CSHDR SETUP 5 8 5 1 1 1 INITIALIZATION What follows is an example of an initialization of the GOES SAT HDR transmitter in SELF TIMED MODE with the following parameters e GOES platform address 48161450 e Transmission channel 9 e Transmission interval 3 hours e Transmission offset time 57 minutes past midnight GMT e Transmission window length 60 seconds e Satellite link parameter Short link preamble Long link interleaver e Greenwich Mean Time Offset 4 hours eg transmissions from Qu bec on EDT 0 lt CR gt GOES Initialization NOTE ALL TRANSMISSIONS WILL BE DISABLED Press Enter to Continue ESC to go back lt CR gt GOES INITIALIZATION 0 Set Date amp GMT Offset 1 Set GOES Platform Address 2 Self timed Mode 3 Random Mode M Main Menu gt gt 2 lt CR gt Select the desired bit rate Here the default of 100 Select Bit Rate 1 baud has been accepted 1100 2 300 3 1200 lt CR gt Enter Self Timed Xmtr Channel No 1 266 9 lt CR gt Enter Self Timed Tx Interval dd hh mm ss 00 03 00 00 lt CR gt Enter GMT Offset hh mm 04 00 lt CR gt Enter Transmission Offset Time hh mm ss 00 57 00 lt CR gt Enter Window Length 1 1
99. etup options SYSTEM SETUP FUNCTIONS 0 Log File Functions 1 Sensor Setup 2 Logger Setup 3 Transparent SDI Mode 4 Communications M Main Menu gt Selection of 0 Log File Functions yields the following menu LOG FILE FUNCTIONS 0 Erase Log File 1 Log File Header 2 Log File Format Tabular EnvCdn 3 Column Delimiter 4 Log File Filter 5 Date Format mm dd yyyy 6 Flash Overwrite Disabled M Main Menu 0 Erase Log File deletes the entire contents of the log file The user is prompted for confirmation before doing so 1 Log File Header is used to edit the header information that appears when data is downloaded from the log file This header information includes the unit identification number as well as a site description For example 1 lt CR gt UNIT ID NO 13478575 11023 lt CR gt UNIT ID NO T347857511023 lt CR gt SITE DESCRIPTION Blackburn Ck at Duclos Rd lt CR gt SITE DESCRIPTION Blackburn Ck at Duclos Rd lt CR gt 2 Log File Format is used to select the desired data format when downloading from the log file as shown in APPENDIX E Note that the PDAS III rev E supports both Environment Canada s Tabular comma delimited as well as Sequential data formats It also provides a user configurable Excel based tabular format with user selectable column delimiters To change the download format select 2 Log File Format By selecting 2 Log File Format the data format toggles through these
100. for these parameters For instance a scale of 1 000 may be entered as 1 but not as 1 1 or 1 It is a good practice to review any changes by scrolling down the display using the set on switch and making further alterations is necessary The display comprises an auto power off feature It switches the display off following an inactive period of approximately 5 minutes in order to save energy Note that although the PSE SDIND consumes as little as 5 mA when the display is off the current consumption is about 90 mA when it is on 2 2 PSE D Display Operation 2 2 2 3 View the Current Level To use the display to view the current fluid level turn it on with set On The current fluid level appears 2 4 Accepting Changing the Password Set up the PSE D using the display set up may also be accomplished via the menu system as per section 5 6 as follows Switch it on with Set On The current encoder position i e water level is displayed Now use select until PASSWORD appears then use set On 000 appears The default password of 000 is displayed Use Set on to accept the current display as the password or use the EDIT switch to change the display to the correct password if it has been changed Note that the correct password must be entered to gain access to the setup parameters You have the option of defining a personal password using the EDIT switch When entering the four character
101. g Functions 5 Display GOES Log Table 6 Xmit Random Message M Main Menu To set up the PDAS and SAT HDR transmitter for GOES transmissions use 0 Initialization While doing so however the transmitter is disabled from making transmissions It is important therefore to rearm the transmitter using selection 2 enable Transmitter following its initialization The user should also verify the operational status of the transmitter following the initialization with 1 Diagnostics refer to section 5 1 1 2 DIAGNOSTICS NOTE The PDAS III incorporated changes over previous versions with respect to enabling disabling GOES transmissions As before the user must Enable Transmitter after loading a new configuration into it via the Initialization submenu 5 1 1 1 However once this is done the transmissions will remain enabled EVEN DURING A POWER RESET Therefore if the transmitter is configured Initialization submenu the system can be powered down shipped and powered up again where transmissions will recommence Note that it will only recommence once the transmitter has obtained a GPS fix The only way to DISABLE GOES transmissions is either to toggle to the Disabled state using 3 Goes Data Collection Disabled or by reconfiguring the transmitter from the initialization submenu When configuring the PDAS logger and accompanying transmitter recall that the user can return to the previous menu using the lt ESC gt key
102. ge Please refer to Table 3 on page 7 2 to determine the default input ranges of your logger With suitable instruction from AMASS Data Technologies Inc the user can further benefit from the high degree of programmability of the AIS such as performing custom offset and gain calibrations setting the scan rates etc For differential measurements the channels are used in pairs either channels 1 and 2 OR channels 3 and 4 ONCE THE CHANNEL IS CONFIGURED FOR DIFFERENTIAL AND TO THE DESIRED RANGE connect the sensor V to 1 or 3 and the V connection to 2 or 4 Channel 1 will henceforth refer to the difference between the potential at 1 and 2 that is Vatt Vi V2 Selecting channel 1 as described in 5 3 2 INTERNAL ANALOG SENSORS can then sample and log this differential measurement BIPOLAR MEASUREMENTS The PDAS III rev E and F have only one bipolar range 100mV This can be used for bipolar ranges greater than 100mV provided proper attenuation is in place See example and Figure 4 Attenuation of bipolar signals on page 5 49 Each channel that is connected to an analog sensor must be configured for that sensor This is done from the System Setup menu as follows gt 1 lt CR gt SELECT SENSOR TYPE 1 External A D Channels 2 PSE Encoder 3 Temperature Units 4 Reset Event 1 5 Reset Event 2 M Main Menu 1 lt CR gt SELECT A D Channel 1 2 3 or 4 Single Ended Ch 5 Diffe
103. he switch beside the LED It will flash for 10 seconds as red failsafe tripped yellow hardware power supply fault or a missed GPS fix or green OK During the first fix the LED will flash yellow if the switch is pressed If the LED remains solid yellow for ten seconds the SAT HDR GOES transmitter is offline Depressing the switch for more than 4 seconds will reset the failsafe state and force the SAT HDR GOES into reset for 60 seconds During this 60 seconds the internal software of the unit may be updated through DCPCOMM IT IS IMPERATIVE THAT THE GOES TRANSMITTER OPERATE IN AN AIRTIGHT ENVIRONMENT WITH LOW HUMIDITY Ensure that the strain relief is tightened securely onto the GOES antenna cable It is desirable to have a bag of dessicant in the enclosure to reduce humidity 8 2 3 PMDM Models Loggers with PMDM in the product name are equipped with a built in modem Power is provided internally to the modem via a cable inter connecting the modem to the logger The only external cable connection to the modem is a telephone line that must be plugged into the RJ11 see next section Note that the modem baud rate defaults to 1200 unless otherwise notified NOTE DO NOT DISCONNECT RECONNECT THE INTERNAL MODEM LOGGER INTERFACE CABLE WHILE THE PRIMARY POWER IS APPLIED If a reset of the modem must be made reset the power to the whole system 8 2 4 HDR MDM models Loggers with HDR MDM in the product name are equipped wi
104. he conversion equation that is required In this example the manufacturer states that a signal of 90Hz is equivalent to 8 8m s The calculation for determining the conversion is shown below Suppose you wish to sample every 5 seconds for an interval of 2 minutes that is 24 samples from the 58 minute mark up to the top of the hour The logger is to log the average of the 24 samples The conversion of pulses to wind speed in metres second is thus metre second x pulse SCALE 1 ES metres second d 5 second 90 Hz 0 0196 Note that the above conversion number is only valid for a sampling rate of 5 seconds The first multiplier above of 1 5 sec is to convert the total number of pulses over the 5 second interval into pulses second that is units of Hz Now proceed to configure the logger to perform the desired data collection MAIN MENU gt SENSOR LOG TABLE gt ADD EDIT SENSOR Select Log Slot 0 15 3 lt CR gt SELECT SENSOR TYPE 0 0 Internal Sensor 1 SDI 12 Sensor For Switched 12V Enter S0 for Internal Sensors S1 for SDI 12 Sensors 0 lt CR gt SELECT SENSOR 1 2 3 or 4 Single Ended Ch 5 Aux 0 20 V 6 Lithium V 7 Main Pwr V 8 Internal Temp 9 Differential 1 2 10 Differential 3 4 11 Event 1 D 4 3 HOW TO 4 17 12 Event 2 D 12 D lt CR gt Refer to section 5 3 for these details Sensor label US lt CR gt Sampling Interval hh mm ss 00 00 05 lt CR gt Select Log Data Function 1 0 Inst
105. he menu system hierarchy Sub sections within this chapter correspond to the Main Menu selection Therefore section 5 2 corresponds to selection 2 View Data The options within these submenus are described at the arrow symbol as follows gt Selection 1 allows the user to view real time data from the sensor set up in the Sensor Log Table SCOPE OF THIS MANUAL This manual describes the PDAS III data loggers with hardware revision H The hardware revision of the unit is embedded in its serial number as follows EXAMPLE A serial number of 0306H3000666 denotes a hardware rev of G The only letter in the serial number is the hardware revision The meaning of the other numbers is as follows Serial Number 030613000666 The serial number Here 0666 Date code aE MM YY Here the Software revision at the unit was shipped in Hardware time of sale Here 3 00 March of 2006 revision Here New programs can be itis H loaded in at any time using the BOOT Loader see section 4 2 1 Conventions used in this manual TABLE OF CONTENTS 1 AMASSER PDAS LOGGERS 0 cccssssscssssscccsscsecccssscccsssscccesseccssssscccessaccsessnsccesssescssaceccsssaccesensssecess 1 1 ITs STANDARD FEATURES urinat r a a a E 1 2 E2 HARDWARR OPTIONS armaren a a a a a a a a a a a a a 1 3 2 BUILT IN SHAFT ENCODER OPTION PSE eeseseesseceessecesssecsscceesseceesseceecsecssccoeessoceessecesssecssssessseceesse
106. icates that every fourth acquisition that is logged is transmitted via GOES This value is 1 by default It must be set within the range of 1 to 255 to enable GOES transmissions of the parameter in that slot To disable it set the LOG GOES RATIO to 0 In the example above HG has a LOG GOES RATIO of whereas that for VB is 4 Therefore if the Logging Rate for both parameters is 15 minutes the only data transmitted for VB will be hourly readings MIN MAX Data Min Max data can be transmitted or not Enabled or Disabled Redundant Mode By default redundant mode is disabled Redundant mode transmits data that was logged in the current transmit interval as well as the last This can be used as a means of recovering data from corrupt or incomplete transmissions Note that each parameter has individual control with respect to GOES telemetry Furthermore this control applies to the Min Max and the instantaneous data of each parameter separately 5 1 1 Main Menu GOES CSHDR SETUP 5 7 By default all data is to be loaded into the Self Timed buffer Random mode transmissions are accomplished through the use of the alarms as per section 5 5 Main Menu SENSOR ALARM TABLE Once the alarms are configured data may be loaded into the Random buffer of the SAT HDR if the user specified conditions are met In the example above the logged data as well as the Min Max data of both HG and VB will be output via GO
107. ill take place as anticipated the first log entry occurs within one minute of the specified Start Time regardless of the Logging Rate specified in the Sensor Log Table This useful feature allows the user to view a log entry without waiting for the logging interval to expire For example because the user specified a SAMPLING Start Time of 12 33 00 in the example above the first log entry will occur prior to 12 34 in spite of the fact that the Logging Rate is hourly The result is that field installations are quickened Note that the use of a Start Time of 00 00 00 is for slots which are intended to be automatically enabled by an alarm see 5 5 If a Start Time of midnight is desired enter the value 24 00 00 The following can be noted from the above interaction e SELECT SENSOR TYPE gt 1 SDI 12 Sensor because an SDI 12 sensor is to be added in this case to the Sensor Log Table Alternatively the user can opt to power the sensor on and off automatically by connecting it to the 12V sw terminal see section 8 3 and enter S1 when prompted SELECT SENSOR TYPE gt S1 for SDI 12 Sensors The switched port is utilized to conserve energy when using sensors with relatively large power requirements and which do not require sensing a parameter continuously In this configuration the sensor is powered up at a user definable time prior to sending a measurement command see section 5 6 Upon receiving the response the sensor is
108. in menu SELECT INPUT RANGE 1 100 mV 20 1V 3 0 2 5V 40 5V 5 Differential 1 2 6 Differential 3 4 BOOT LOADER MENU 1 LOAD PROGRAM FILE 2 LOAD CONFIGURATION FILE 3 FIRST TIME INITIALIZE 4 START LOGGER 5 RETRIEVE CONFIGURATION 6 START PREVIOUS PROGRAM App G Menu Map SENSOR ALARM TABLE 1 ADD EDIT Alarm Function 2 CLEAR Log Slot Alarms M Main Menu SELECT A D Channel 1 2 3 or 4 Single Ended Ch SYSTEM SETUP FUNCTIONS 0 Log File Functions 1 Sensor Setup 2 Logger Setup 3 Transparent SDI Mode 4 Communications M Main Menu LOG FILE FUNCTIONS 0 Erase Log File 1 Log File Header 2 Log File Format Tabular EnvCdn 3 Column Delimiter 4 Log File Filter 5 Date Format mm dd yyyy 6 Flash Overwrite Disabled M Main Menu SELECT SENSOR TYPE 1 External A D Channels 2 PSE Encoder 3 Temperature Units 4 Reset Event 1 5 Reset Event 2 M Main Menu LOGGER SETUP FUNCTIONS 0 BootStrap Loader 1 View Data Period 2 Change PASSWORD 3 Enable Multi Value SDI Mode 4 Sw 12V ON Delay M Main Menu SELECT COMMUNICATIONS PORT 0 Programmer Port 1 Modem Port 2 SDI 12 Ports A 3 SDI 12 Ports B APPENDIX F SAT HDR Error Codes Communication Fault Codes When a communication error is detected the SAT HDR GOES will post error codes as listed below to an error register which can be accessed using Diagnostics gt Error Status Each error regist
109. ion 5 2 See Example 3 in this section The contents of the buffer are accessible to user defined equations Block Total adds all samples in the block of data and logs the result Block Total is useful for sensors that require an integration over a period of time such as some solar radiation sensors See Example4 EXAMPLE 1 Assume a water level sensor for which the AVERAGE DATA is calculated using a block of 20 samples that are 2 seconds apart and is logged hourly gt gt 2 lt CR gt Add Edit Sensor Select Log Slot 0 15 0 lt CR gt refer to section 5 3 Sample rate set to 2 seconds Sampling Interval hh mm ss 00 00 00 00 00 02 lt CR gt Sampling Interval hh mm ss 00 00 02 lt CR gt Select Log Data Function 0 0 Instantaneous 1 Block Averaged wd 2 Block Capture Max 60 samples 3 Block Log Max 60 samples 4 Block Toal eee 1 lt CR gt Select Log Data Function 1 0 Instantaneous 1 Block Averaged wd 2 Block Capture Max 60 samples 3 Block Log Max 60 samples 4 Block Total lt CR gt Enter Number of Samples 00 Specify 20 samples 20 lt CR gt Enter Number of Samples 20 lt CR gt Logging Interval hh mm 01 00 lt CR gt MinMax Log Interval hh mm 24 00 lt CR gt Select Sensor Equation Type 0 lt _ Default is for no conversion equation 0 None 1 value Scale Offset 2 value Offset Scale xP Polynomial These options are covered in section 5 3 3 5 3 1
110. ise both types of sensors require the same setup The PDAS II logger has four analog input channels for connection to such sensors These terminals are labeled AIN1 AIN2 AIN3 AIN4 see Figure 7 First determine what voltage range is required for your application The ranges of the analog input channels for the rev E and F PDAS III are user configurable as follows 100mV 0 1V 0 2 5V and 0 5V The user should always configure the input range PRIOR to making any connections to an analog sensor This is done from Main Menu gt System Setup gt External A D Channels see section 5 6 2 p 5 44 For voltage output sensors the range of the input channel should be equal to or greater than that of the sensor Therefore a 0 5V sensor requires a 0 5V input a 0 2Vsensor requires a 0 2 5V input In the case of 4 20mA SENSORS it is best to configure the input channel to the minimum unipolar range as per section 5 6 2 p 5 44 that is 0 1V Also refer to Figure 3 for a connection diagram In the case of bipolar sensors the user must select an input range of 100mV For bipolar sensors with a range greater than 100mV the user must install appropriate attenuation resistors to reduce the input range to within 100mV Once the input channel is configured as per section 5 6 2 power down the logger and make the sensor connections 4 20mA sensors only two wire connections plus a shield wire Connect the wire labeled supply usually red
111. l hh mm ss 00 05 00 lt CR gt Select Log Data Function 0 0 Instantaneous 1 Block Averaged wd Selections 1 2 3 and 4 are covered in 2 Block Capture Max 60 samples section 5 3 1 BLOCK FUNCTIONS 3 Block Log Max 60 samples 4 Block Total 0 lt CR gt Logging Interval hh mm 00 00 01 00 lt CR gt lt 4 Log once an hour Logging Interval hh mm 01 00 lt CR gt MinMax Log Interval hh mm 00 00 24 00 lt CR gt MinMax Log Interval hh mm 24 00 lt CR gt Select Sensor Equation Type 0 0 None These options are covered in section 5 3 3 1 value Scale Offset 2 value Offset Scale xP Polynomial 5 3 1 BLOCK 5 18 xU User Defined xB Block Functions where x 0 1o0r2 0 lt CR gt No conversion equation required Current Time 12 32 00 because the sensor in this example Enter SAMPLING Start Time hh mm ss 00 00 00 provides data in engineering units 12 33 00 lt CR gt Enter SAMPLING Start Time hh mm ss 12 33 00 lt CR gt Current Time 12 32 00 Enter MinMax Start Time hh mm ss 00 00 23 55 lt CR gt Enter MinMax Start Time hh mm ss 23 55 lt CR gt Log slot 0 would then appear as shown in the Sensor Log Table above The Log Enable column will automatically become 1 at 12 33 00 the Start Time as requested The operation of the PDAS with respect to Start Time is worth noting In order to facilitate the set up of the PDAS and to verify that logging w
112. lot C Activate Control Response G Enable Random Goes Buffer 0 lt CR gt Enter LOWER Trip lt value 0 23 39 lt CR gt Enter Lower Trip Actions 4 max No Actions 0 No Action Proceed D Disable Log Slot E Enable Log Slot C Activate Control Response G Enable Random Goes Buffer D lt CR gt Select Log Slot 0 15 1 lt CR gt Enter Lower Trip Actions 4 max D1 0 No Action Proceed D Disable Log Slot E Enable Log Slot C Activate Control Response G Enable Random Goes Buffer 0 lt CR gt Sensor slot 0 would then appear as shown in the Sensor Alarm Table above In this example the user enabled slot 1 when the stage HG surpassed a specified value in order to begin monitoring the water velocity WV This in fact is one of the simplest alarm configurations possible Note that the user also specified that slot 1 be disabled when the stage level dropped below a certain value 23 39 This is important if you do not wish the triggered slot to remain active when the stage drops some time later to lower levels The terms UPPER and LOWER Trip Value require further explanation These two values are in fact the same alarm point but are implemented to account for hysteresis as depicted in Figure 2 where the exact trigger points are shown for the alarm configured in the Sensor Alarm Table above Given that the alarm is setup to be activated by the stage HG of slot 0 the following can be noted with respect to Figure 1 gt Sl
113. mm 11 0 00 00 00 hh mm ss l 00 00 00 00 hh mm 12 0 00 00 00 hh mm ss l 00 00 00 00 hh mm 13 0 00 00 00 hh mm ss l 00 00 00 00 hh mm 14 0 00 00 00 hh mm ss l 00 00 00 00 hh mm 15 0 00 00 00 hh mm ss l 00 00 00 00 hh mm Each row of the table is known as a slot numbered from 0 to 15 A sensor must be entered in a slot to be monitored by the data logger and the values entered in each column determine how the sensor is monitored The 16 slots rows allow up to 16 parameters to be monitored by the data logger The function of each column is as follows Slot No This is just an index for the 16 slots When using the View Data function the slot number is requested to determine which of the sensors is to be viewed Log Enable This flag determines whether the current slot is active or not 1 Logging is active enabled Currently acquiring a block if applicable B Logging is active block logging mode between blocks of data See section 5 3 1 0 Logging is inactive i e Start Time has yet to occur In the sensor log table above slots 0 and 3 are enabled 5 3 1 BLOCK 5 16 Sensor Command The first character of this string is in fact a flag used to identify whether the sensor is internal eg analog event counters built in shaft encoder or SDI 12 Additionally these sensors may be automatically powered on and off in which case the Sensor Command is preceded with the character S 0 Internal Sensor 1 SDI 1
114. mple occurs 12 58 00 and every hour thereafter 4 3 HOW TO 4 16 4 3 8 SETUP A WIND SPEED SENSOR One of the most common types of wind speed sensors is one that generates a sine wave as a result of a rotating propeller The frequency and amplitude of the signal are linearly proportional to the wind speed Such wind speed sensors may be connected to PDAS III loggers via a sine wave to square pulse conversion module inquire at sales amassdata com The sine wave output of the sensor is connected to the conversion module The square wave output of the conversion module is connected to Event Counter 2 of the PDAS III labeled EvCnt2 on the terminal strip NOTE Wind speed sensors must be connected to Event Counter 2 of the PDAS IIl logger Event Counter 1 does not support this type of installation only switch closure type sensors ex Tipping buckets EXAMPLE A wind speed sensor as described above is to be connected to the PDAS III logger The AMASS Data PSWSP sine wave to square pulse conversion module is required Begin by making the required connections refer to the sensor manufaturer s manual Wind speed sensor PSWSP PDAS III Sine wave output Blue wire White Event Counter 2 Ground wire Black Ground terminal Red 12V terminal Now determine how to convert the incoming pulses on Event Counter 2 to wind speed in engineering units such as metres second Refer to the manual of the sensor for t
115. ndard SDI 12 ports are available to you This section briefly describes the standard SDI 12 protocol One SDI 12 port will support 10 SDI 12 sensors Any communication between the PDAS II and the SDI 12 sensor must employ the SDI 12 protocol Any communication between the host PC and the SDI 12 sensors must employ in transparent mode the SDI 12 protocol The transparent mode allows the user to send and receive SDI 12 messages via the DAS protocol by encapsulating the SDI 12 string into the RS 232 data stream SDI 12 sensors may be monitored and logged as well as accessed for immediate and real time data If the user wishes to type manual SDI 12 commands he she must use the transparent mode as explained in 5 6 Main Menu SYSTEM SETUP In order to monitor and log data from sensors the user must assign them to slots in the Sensor Log Table as explained in 5 3 Main Menu SENSOR LOG TABLE In the case of SDI 12 sensors the logger sends the appropriate SDI 12 command to initiate a measurement and automatically performs any breaks D commands retries etc as required by the SDI 12 protocol It then logs the value that it retrieved into the log file What follows is an overview of the SDI 12 protocol For detailed information on SDI 12 protocol visit the SDI 12 Support Group s web site via our home page at http www amassdata com In order to initiate communication with an SDI 12 sensor the controller sends a break signal
116. ne the state of the SAT HDR GOES at any time by briefly depressing the switch beside the LED It will flash for 10 seconds as red failsafe tripped yellow hardware power supply fault or a missed GPS fix or green OK During the first fix the LED will flash yellow if the switch is pressed If the LED remains solid yellow for ten seconds the SAT HDR GOES transmitter is offline Depressing the switch for more than 4 seconds will reset the failsafe state and force the SAT HDR GOES into reset for 60 seconds SAT HDR Software Updates New software releases of the SAT HDR are managed by Seimac Ltd Please refer to the Seimac website for updates and instructions using DCPCOMM http www campbellsci ca APP H SAT HDR Error codes 4 20mA sensors removing 4mA bias 5 47 termination resistors 4 7 AIS 1 2 analog input ranges 5 26 5 27 5 48 7 2 analog sensors bipolar 5 49 differential 5 44 Auto Calibrate 4 14 Battery Backup of PSE 8 9 Baud rate of Modem Port 5 42 Block capture 4 9 5 23 5 24 Block Log 5 22 BOOT LOADER 4 3 BUILT IN SHAFT ENCODER See PSE Communications watchdog 5 4 Connection of 4 20 mA Sensor 4 7 Analog Sensor 4 7 analog sensors 5 25 SDI 12 sensors 4 6 Tipping Bucket 4 8 Conversion Equation polynomial 5 29 Conversion Equations 5 27 detachable screw terminal 8 10 event counter 4 8 filter log file 5 39 Firmware Upgrades 4 3 GOES CSHDR 5 6 Log Functions 5 8 Log Table 5 7
117. niinn hettec han cesh tiesto Reet Behn cn fen ae Bede on hn at Bd tie once tin dan hee ot Behn cales hah 4 1 4 2 SOFTWARE UPGRADES i T E E ous a E A 4 3 A Dl OOA BA E DYAN BI E i EAE EEE A EEEE EA E EA AAA See 4 3 4 2 2 Loading New SoftWare serret e a AEE EE A EA AE Eaa 4 3 4 2 3 Load Retrieve Configurations iyane a a aea EE REE ESE 4 4 4 2 4 Other BOOT LOADER Features ccc cccccccccccccecececececececececesscecesececesscscesecesesecssssasssesesssesseeseesueeenseaeaes 4 5 Bese SHOW TO ie rcteiceccossseveetes a a a Dagan evi iets bie E N S 4 6 AS jl SETUP AN SDIFI2 SENSOR a dee cd oka eee Tah a tao th doen Boater ig tbs 4 6 43 2 SETUP AN ANALOG SENSOR oye ccseswsescasccac ccs occa see Sebed oo oee ae e Sou ov th oar Cea ra 4 7 433 SETUP A TIPPING BUGK ED a hb eee ua aas oad ots ee wia teak oth Roe Pau tie 4 8 43A USE THE SWITCHED 12 V ronne Sas as aaa ap eNOS EEE RRR RE 4 9 43 5 USE MULTLVALUE SDI 112 MODE sannau an cick eas ipk oben obs area dag Les cb cid ea wea Sage E ON tke 4 10 4 3 6 USE THE AUTO CALIBRATE FEATURE ennan E e E ISE ay 4 14 4 3 7 SETUP A WIND DIRECTION SENSOR anonn onneinn a aE N Ea T S 4 15 43 8 SETUP A WIND SPEED SENS OR n N E aaa ag E N Ea 4 17 5 MENU TREE REFERENCE ssissirsesisricsesssrsssossosscsesssssssessos esecssrscoes ss ses sestescoee ss ssossssstesossctesss tosisvo sss 5 2 5 1 MAIN MENU SET DATE AND TIME wooo cccccccecececececececececeseseseseseseseseseseseseseseseeeseseseeesese
118. nnect using select Direct to com where is your com port connection Click OK e Select a baud rate of 38400 by default but it could also be 9600 2400 1200 or 300 baud 8 data bits no parity bits 1 stop bit and HARDWARE flow control then click OK e Set the font by clicking on View on the menu bar then on Font Select the font Courrier the font style Regular and the size 8 suggested font only Click OK e Using the Programming Cable supplied with the logger do not use a standard RS232 cable connect the PDAS III to the serial port of the computer Proceed to OR WITH MODEM connect telephone line to RJ11 see 8 3 e In the window labeled Connect using select the modem of your choice such as Standard Modem or Modem at Com 2 for example e Enter the phone number and area code to be dialed to access the logger then click OK e Click on Modify Click on Configure In the section labeled Maximum Speed select the baud rate to be 9600 e Click on the tab labeled Connection Select 8 data bits no parity bits and 1 stop bit e Click OK Click OK again then finally click on Dial e Once connected the user may which to change the font Click on View on the menu bar then on Font Select the font Courrier the font style Regular and the size 8 suggested font only Click OK Proceed to The terminal window should now appear To have a record of the
119. nt Time 1 Instantaneous Data 2 Captured Block Data gt Selection 0 displays the current time gt Selection 1 allows the user to view real time data from the sensors set up in the Sensor Log Table as follows VIEW SENSOR DATA HG 0 WV 1 Select Log Slot 0 15 0 lt CR gt The print out begins immediately after typing lt CR gt A new line appears at regular intervals and includes the date time sensor label and data For example if the view data period is set to 3 seconds see 5 6 the display would be as follows 1997 06 04 11 30 00 HG 1 00 1997 06 04 11 30 03 HG 1 02 1997 06 04 11 30 06 HG 1 02 1997 06 04 11 30 09 HG 1 05 etc To stop the print out simply press lt CR gt Note that these are not values that are being logged as they are displayed but rather sensor data that is transmitted to your terminal as the result of real time polling at a given rate Note that 0 in the string HG 0 refers to the Sensor slot to which the parameter is assigned see section Main Menu SENSOR LOG TABLE In the example above slot 1 is occupied by parameter WV The user could therefore select 1 to view real time data from that sensor gt Selection 2 displays a list of captured data as configured in any given Sensor Slot see 5 3 1 VIEW CAPTURED DATA HG 0 WV 1 Select Log Slot 0 15 0 lt CR gt 2 525 2 524 2 524 2 526 2 525 5 3 Main Menu SENSOR
120. nvironmental Voice Modem The PMDM described above with voice interface for telephone call ins Refer to documentation for PMDM V 2 BUILT IN SHAFT ENCODER OPTION PSE 2 BUILT IN SHAFT ENCODER OPTION PSE The built in shaft encoder i e option PSE is in fact the AMASS PSE SDI incorporated into the same casing For complete details of this sensor please refer to the datasheet for the PSE SDI The resolution of the encoder is 1 400th of a revolution minimum when used as a stream stage indicator with a 375 mm circumference pulley the resolution of the system is 0 94 mm It is a two channel optical incremental encoder that contains a lensed LED source integrated detectors and a codewheel which rotates between the emitter and the detector The PSE SDI firmware provides pulsed LED driver and an adaptive signal transition detector to provide the 4x quadrature decoder function This technique in conjunction with idle power down mode of the processor drops the encoder s current consumption from 45 milliamps to 2 3 milliamps A HUGE power savings There are no mechanical contacts involved in the measurement process the only contacting moving parts are the precision shaft bearings The starting torque is low 0 65 inch oz 47 cm g or less and the system is not sensitive to vibration It is tested to operate from 40C to 55C and up to 100 relative humidity 2 1 Quadrature Encoder Principle of Operation The on boa
121. of the PDAS to make use of this feature 5 6 Main Menu SYSTEM SETUP 5 40 For proper connection of the sensors to the PDAS refer to section 8 3 Also refer to 4 3 4 USE THE SWITCHED 12V Here again is the SYSTEM SETUP submenu SYSTEM SETUP FUNCTIONS 0 Log File Functions 1 Sensor Setup 2 Logger Setup 3 Transparent SDI Mode 4 Communications M Main Menu gt Select 3 Transparent SDI Mode to operate the logger in transparent SDI 12 mode In this mode the user enters SDI 12 commands that are encapsulated in the RS 232 data stream and relayed to sensors on the SDI 12 bus Upon receiving an SDI 12 command the logger automatically performs all that is necessary for data retrieval as prescribed by the SDI 12 protocol which it then relays to the user For example if the AMASS Data PSE SDI shaft encoder is mounted at address 1 on channel A the user may access it as such 3 lt CR gt Enter SDI Command String A a Command parameters A1M0O lt CR gt 10001 2 009 A1V0 lt CR gt 10003 1 1 0 lt CR gt The user may communicate in this manner with other SDI 12 sensors on the bus provided that the correct address is entered and that the sensor in question supports the command Note that the character need not be appended to the command as this will be done by the logger if it is omitted by the user Note that the user may communicate with sensors connected to the Switched 12V port by preceding the message with a
122. one of the PDAS III GOES buffers use the G command as per section 7 Last Message Status as follows 3 Last Message Status F 00 R 00 G 00 Latitude 45 31 21 Longitude 75 12 39 where F R Forward transmission power Reflected transmission power 5 1 1 Main Menu GOES CSHDR SETUP 5 13 gt To manually insert a message into a transmission select 4 Insert String to GOES Buffer as follows 4 lt CR gt Select GOES Buffer 0 Self timed 1 Random 0 lt CR gt Enter ASCII string First test lt CR gt gt Select 5 Error Status to display the most recent errors logged in the SAT HDR Error Status 01 1f 12 00 00 00 00 00 00 Most recent Total error count Which indicates that one error occurred with a command code of 1f and error code of 12 1f 12 signifies that a Power supply fault occurred The error file stores the four most recent errors that occurred with the transmitter For an explanation of the command and error codes please refer to Appendix H of this manual gt Select 6 Reset Error Counter to clear the error file Error Reference source not found Error Reference source not found 5 14 5 2 Main Menu VIEW DATA The data from any given sensor may be read without having to look at the recorded values in the log file View Data allows the user to access sensors in real time By selecting item 2 VIEW DATA of the Main Menu a sub menu appears as follows VIEW SENSOR DATA 0 Curre
123. onse lt value gt lt value gt lt value gt lt value gt example For instance if the parameter labeled HG occupies slot 0 and you wish to view the contents of the PDAS GOES buffer type this Command GO lt CR gt Response 0 6280 0 7293 0 7800 0 7800 7 DIRECT COMMUNICATIONS COMMANDS 7 1 Note that the contents of the PDAS GOES buffer is shown with the G command NOT the transmitter buffer itself As explained in 6 1 1 GOES Data Interpretation GOES equipped loggers use 16 separate buffers which correspond to the 16 sensor slots These GOES buffers acquire data at a rate defined by Logging Rate in the Sensor Log Table Once any given one of the 16 GOES buffers is filled to its 96 byte capacity it is flushed into the transmitter buffer A D CONFIGURATION COMMAND Determine the default A D configuration of your logger PDAS III only such as the input ranges of channels 1 to 4 by typing RC as such Command RC lt CR gt Response lt CSR gt lt Configuration 0 1 2 or 3 gt Where Table 3 A D configuration options for channels 1 to 4 Configuration Channel Configuration 0 4 X 100mV 1 2 3 4 1 4 X 0 1V 1 2 3 4 2 4X 0 2 5V 1 2 3 4 3 4 X 0 5V 1 2 3 4 Note that rev E and F have user configurable input ranges The RC command merely shows the configuration at the time of delivery The input channels are labeled AIN1 AIN2 AIN3
124. ot 1 will be enabled ONLY IF the stage increases beyond the values of both LOWER AND UPPER Trip Value gt Slot 1 will be disabled ONLY IF the stage decreases below the values of both UPPER AND LOWER Trip Value 5 5 Main Menu SENSOR ALARM TABLE 5 35 Trigger point Trigger point STAGE UPPER trip value 23 40 LOWER trip value 23 39 CE Duration of slot 1 start stop start Figure 2 Implementation of UPPER and LOWER trip values The alarm functionality of the PDAS loggers is in fact quite powerful When configuring even the simplest of alarms however it is important to ask the following questions e Under what conditions do I desire to begin monitoring this parameter e Once triggered when do I want to stop monitoring this parameter e Do I want to maintain the slot that serves as a trigger e If not under what conditions if any do I desire to reinitiate the slot that served as a trigger For example if the water level is being monitored as in slot 0 above it may be desirable to increase the logging rate when the stage attains 23 40 In this case it is necessary to enable a new slot which will include the same Sensor Command and Sensor Label see section 5 3 Main Menu SENSOR LOG TABLE and simultaneously disable the current slot slot 0 The Sensor Alarm Table would be as follows Slot Log Sensor UPPER Actions LOWER Actions No Enable Command Label Trip Value Trip Value 0 0 1A1M0 1 HG gt 23 40 do E1 E2 D0 lt
125. ounter to which the sensor is 11 lt CR gt lt td lt _L __ _ connected eg EvCntl Refer to section 5 3 for the remaining details To test the sensor begin by selecting 2 View Data gt 1 Instantaneous Data section 5 2 Select the desired sensor from the list Real time data immediately appears on the screen Pour water in the sensor to see the readings increment 4 3 HOW TO 4 8 4 3 4 USE THE SWITCHED 12V Fuse F2 on the terminal strip must be installed for the Switched 12V output to function See 8 3 The switched 12V output is used to automatically turn sensors on and off in order to conserve power Note that some types of sensors must not be powered on and off For example most shaft encoder sensors must be powered continuously in order to track water level accurately The switched output is labeled 12V SW on the detachable terminal strip see 8 3 p 8 10 Begin by connecting the 12V wire of the sensor to this terminal For 4 20mA sensors this wire is usually labeled supply In most cases this wire is red in color All other sensor connections to the terminal strip are unchanged by using the switched output Refer to appropriate sections of this manual for connection based on the type of sensor Once the connections are complete the logger must be configured for switching the power to the sensor prior to taking a sample from it This is done when configuring the logging schedule of the s
126. password the following characters are valid 0 1 2 3 4 5 6 7 8 9 lt space gt The password can only be viewed or altered from the display and must be entered correctly to view the remaining setup parameters To set the password equal to the characters displayed on the screen press the Set On switch Note that the correct password that was entered to gain entry to the setup parameters can be viewed as long as the display has not switched off with the auto power off feature Note that if the display does shut off and is turned back on PASSWORD will display the default value namely 000 which must be edited once again to obtain access Never forget your password otherwise you will not be able to change the setup parameters from the display at a later date In the event that it is forgotten contact AMASS Data Technologies Inc 2 5 2 6 Set the Scale and Offset Turn on the display with Set On Push switch to Select until the word PASSWORD appears Push switch to Set On The default password appears 000 Enter the correct password then press Set On Push Select until the word SCALE or OFFSET appears Push Set On The current value of the parameter appears Make changes with the EDIT switch and accept the new value with Set on OR cancel your changes by pushing Select Set the Node Address Turn on the display with Set On Push switch to Select until the word
127. ples Enter Number of Samples 30 lt CR gt Logging Interval hh mm 00 00 00 10 lt CR gt Logging Interval hh mm 00 10 5 3 1 BLOCK 5 22 Log slot 0 of the Sensor Log Table would be thus Slot Log Sensor Sampling Start B Logging Min Max MM No Enable Command Label Rate Time Av Cap Rate Rate Time Sa Note the 7 column from the left indicates that Blocks of 30 samples are Logged B30L EXAMPLE 3 The user wishes to CAPTURE blocks of data consisting of 10 samples of a water level sensor 3 seconds apart The user wishes to refresh the captured data once an hour gt gt 2 lt CR gt Add Edit Sensor Select Log Slot 0 15 0 lt CR gt refer to section 5 3 Sample rate set to 3 seconds Sampling Interval hh mm ss 00 00 00 00 00 03 lt CR gt Sampling Interval hh mm ss 00 00 03 lt CR gt Select Log Data Function 0 0 Instantaneous 1 Block Averaged wd 2 Block Capture Max 60 samples 3 Block Log Max 60 samples 4 Block Total 2 lt CR gt Select Log Data Function 2 0 Instantaneous 1 Block Averaged wd 2 Block Capture Max 60 samples 3 Block Log Max 60 samples 4 Block Total lt CR gt Enter Number of Samples 00 10 lt CR gt lt 4 l Specify 10 samples Enter Number of Samples 10 lt CR gt Logging Interval hh mm 00 00 01 00 lt CR gt Logging Interval hh mm 01 00 h The user specifies to capture 10 new samples every hour Log slot 0 of the Sensor Log T
128. ptured e Click on Terminal on the menu bar then on Start Logging e Select a folder and filename for the capture file e click Open Now assuming a platform number of 48161450 the user would type the following command at the prompt gt DOWNLOAD MSG ID_PLATFORM 48161450 lt CR gt gt BEGIN DOWNLOAD Y N gt Y lt CR gt Once the data is downloaded the user stops logging the Telnet session as follows e Click Terminal then Stop Logging Now disconnect from the DAPS system by typing BYE 6 1 1 GOES Data Interpretation 6 1 6 1 1 GOES Data Interpretation Here is an example of data as downloaded from the DAPS system Platform ID Date of transmission year 1998 day 295 Time of transmission 00 57 GMT te f i Transmission strength information sty 4816145098295005722G50 ONNOO9EFF00145 _ line is Header HG 170 180 0 780 HG 285 180 0 628 SS Se Single data are Min Max entries HG 10 15 0 6280 0 7293 0 7800 0 7800 0 7800 0 7800 0 7800 0 7800 0 7800 0 7800 0 7800 0 7800 Note that the first line is a header providing information with respect to the transmission itself The lines that follow are the data accumulated by the PDAS since the last transmission Here is the third such line as it appears in the example above HG 10 15 0 6280 0 7293 0 7800 0 7800 0 7800 0 7800 0 7800 0 7800 0 7800 0 7800 0 7800 0 7800 Oldest entry A or serves as a delimiter Most rec
129. r Sampling Start B Logging Min Max MM No Enable Command Label Rate Time Av Cap Rate Rate Time Log 0 0 1A1M0 1 HG 00 00 03 12 33 00 B10A 01 00 24 00 23 55 gt l i 2 0 1A2M0 1 WV 00 01 00 12 35 00 I 01 00 00 00 00 00 3 0 1A1M0 1 QR 00 15 00 12 36 00 l 01 00 00 00 hh mm Configuring the PDAS III to sample and log data from an external analog sensor is accomplished by selecting the desired channel from the SELECT SENSOR menu shown above Therefore the user types 1 2 3 or 4 for single ended applications and 9 or 10 for differential measurements as per the menu selections ALWAYS ENSURE THAT THE INPUT RANGE OF THE SELECTED CHANNEL IS ADEQUATE FOR THE SENSOR AND APPLICATION Therefore either select a channel with the appropriate default input range or configure the range of the input to your needs as described in section 5 6 2 ANALOG SENSOR SETUP To determine the default input range use the A D CONFIGURATION COMMAND described on p 7 2 In either case ALWAYS ENSURE THE INPUT RANGE IS ADEQUATE PRIOR TO CONNECTING THE SENSOR to it As described in section 5 6 2 ANALOG SENSOR SETUP the input channels for the PDAS III are configurable to the following ranges 100mV 0 1V 0 2 5V and 0 5 5 3 3 CONVERSION EQUATIONS 5 26 5 3 3 CONVERSION EQUATIONS This section describes the ability of the PDAS to apply equations to the incoming data The reasons for doing this are as follows a Convert the
130. r the offset Therefore in the example above the pressure will be converted to one decimal place offset 375 0 5 46 5 6 2 ANALOG SENSOR SETUP The values Scale and Offset are simply determined by the properties of the sensor in question SCALE Slope Pgs Po max voltage min voltage 3000 0 4 5 0 5 SCALE 750 OFFSET Py SCALE X min voltage 0 750 X 0 5 OFFSET 375 0 EXAMPLE 3 DO NOT CONNECT YOUR ANALOG SENSOR TO YOUR LOGGER YET Connect your analog sensor AFTER you have configured the input range as shown below A 4 20 mA sensor is connected to channel 3 terminal AIN 3 SELECT A D Channel 1 2 3 or 4 Single Ended Ch 6 Differential 34 3 lt CR gt SELECT INPUT RANGE 1 100mV 20 1V 3 0 2 5V 40 5V The user selected a range of 0 1V preferred kete SELECT OUTPUT FORMAT 1 0 1 0000 2 0 2 500 3 0 5 000 4 5 000 5 Binary Count 6 4ma Offset Correction 7 Temperature AD34 The user selected 6 4mA Offset Correction 8 Wind Direction 6 lt CR gt Custom Equation Required 0 No 1 Yes 0 lt CR gt The set up is complete The 4mA bias has been removed The analog data of channel 3 will henceforth be converted such that the output range of the sensor is from 0 2 zero counts to 1 0V full scale To monitor this sensor select channel 3 from the list of Internal Sensors as described in 5 3 2 INTERNAL ANALOG SENS
131. raw data from a sensor to the desired engineering units This is most often applicable to analog sensors b Calculate the value of an equation which uses the incoming sensor data as variables For example the user may wish to compute the discharge of water based on the variables HG and WV Here are some examples EXAMPLE 1 A raw data temperature sensor is to be connected to the PDAS III Refer to the documentation of the sensor to determine its output range and select the appropriate channel of the AIS for measurement see A D CONFIGURATION COMMAND p 7 2 Typically these sensors can be operated in several modes Voltage mode Resistance mode which requires appropriate connection Here then is an example of such a sensor YSI 44212 thermilinear network External resistor to be added Connect to a 0 2 5V channel Connect to 2 5V Ref 23 1 kOhms 88 2 kOhms Connect to AGND Black wire YSI 44212 veo Network device such as the Bristol External Temperature Probe PN 696 00008 01 You must enter a Conversion Equation in order to convert the raw data from the sensor to units of temperature Based on the documentation of this particular sensor the proper values for OFFSET and SCALE are calculated to be as follows SCALE 71 54 OFFSET 106 06 5 3 3 CONVERSION EQUATIONS 5 27 Therefore when the Sensor Log Table menu prompts the user as follows Select Sensor Equation Type 0 0 Non
132. rd microcontroller and firmware follows the shaft rotation each transition of either of the quadrature inputs adds or subtracts a count to a 16 bit stored value representing the position of the shaft and therefore the fluid level A set up parameter called scale is provided to allow the application of a standard circumference pulley and tape so that the accumulated count represents an accurate fluid level If using a 375mm circumference pulley for instance the accumulated count would directly indicate a fluid level in metres by setting the scale 0 375 The output from the microprocessor is the ASCII code representation calculated to three decimal places and is equal to the position value stored in the internal register divided by 384 Model K encoder The output will be a decimal value in the range 999 999 units The encoder s scale and offset are set using the menu system as described in Main Menu SYSTEM SETUP or using the 8 digit display for PSE D models see section 2 2 For example if you are using a 375mm circumference pulley and you wish to measure the stage in metres above sea level you would enter a scale of 0 375 and an offset equal to the stage level above sea level at setup time If the measured stage is 101 225 metres above sea level at setup time you would enter an offset of 101 225 and the unit will now track your stage in meters above sea level 2 2 PSE D Display Operation 2 1 2 2 PSE D Display Operation
133. rential 1 2 6 Differential 3 4 SELECT INPUT RANGE 1 100mV 20 1V 3 0 2 5V 40 5V 5 44 5 6 2 ANALOG SENSOR SETUP SELECT OUTPUT FORMAT 1 0 1 0000 2 0 2 500 3 0 5 000 4 5 000 5 Binary Count 6 4ma Offset Correction 7 Temperature AD34 8 Wind Direction Custom Equation Required 0 No 1 Yes Proper selection from these options depends on criteria such as the following Range of output of the sensor Single Ended or Differential input Is the data to be converted to Volts or to some other engineering unit If converted to How many decimal places Is this a 4 20 mA application Are you connecting the AD34 temperature sensor Are you connecting a wind direction sensor These various options are best explained with a few examples Further explanations are added where warranted EXAMPLE 1 DO NOT CONNECT YOUR ANALOG SENSOR TO YOUR LOGGER YET Connect your analog sensor AFTER you have configured the input range as shown below A sensor requiring differential measurements up to 5V will be connected to channels 1 and 2 with V to 1 and V to 2 You wish the analog data to be converted to Volts SELECT A D Channel 1 2 3 or 4 Single Ended Ch 5 Differential 1 2 pans ET 6 Differential 3 4 The user selected Differential 1 2 5 lt CR gt SELECT INPUT RANGE 1 100mV 20 1V 3 0 2 5V 40 5V pie A ee The user selected a range of 0 5V 4 lt CR gt SELECT O
134. roduct line features intelligent data collection platforms with built in menu facility that guides the operator through log set up procedures and data retrieval procedures directly from a laptop or via a modem or even via GOES telecommunications These procedures are accomplished with any standard ASCII communications package such as PROCOMM or simply a dumb terminal emulator and are thus not dependent on the Operating System of the host This is a great advantage over many of today s products that are configured specifically to operate with a given system and where compatibility is always an issue The on site capability of the AMASSER PDAS III data acquisition system to acquire process store and as required transmit data via available communication systems will increase the user s flexibility in the operation of the various data acquisition programs under their control Probably of even greater importance is that the timeliness and cost effectiveness with which this data can be delivered to the user community will provide the incentive for a reevaluation of our ability to manage our ever changing natural resources The AMASSER PDAS III Data Acquisition System is provided with a real time multi tasking operating system kernel capable of providing both a time and event driven environment in which data is collected processed logged and distributed across multiple mediums reliably This firmware also uses the power saving support of both the idle and
135. s and depends on your computer but is about 30 seconds on average RETRIEVING A CONFIGURATION 1 2 Select 5 RETRIEVE CONFIGURATION The following prompt appears Set Capture File ON Then Press Enter to continue If using Hyperterminal click on Transfer then on Capture Text In the box labeled File type a path and filename Click on the Start button Press Enter 3 4 The PDAS III is now transmitting data to your computer This data is being captured or logged to the specified filename Wait until the following message appears Stop Capture File NOW Then Remove this message and the initial lt Enter gt From captured file before using Press Enter to continue 4 3 HOW TO 4 4 In Hyperterminal click on Transfer then on Capture Text then on Stop Press Enter to return to the BOOT LOADER menu 5 Launch the application NOTEPAD or some other text editor Open the captured file 6 You must modify the file as follows remove the first character in the file a lt CR gt character as well as the message shown in item 4 above The latter is at the end of the file Save the file 7 This configuration file is now ready to be loaded into other PDAS III loggers using the procedure described above 4 2 4 Other BOOT LOADER Features gt Selection 3 FIRST TIME INITIALIZE allows the user to perform a first time initialize of the PDAS II that is
136. s following DO Command 3 Character timeout DO Response string 4 Character timeout Initial Response string 5 Waiting for Tx to finish App A APPENDIX B PSE Shaft Encoder Commands Retrieve Data Commands 1 10 11 Get encoder value in scaled units command aM aMO e response a0001 lt cr gt lt lf gt data buf lt encoder value gt Start verification command e command aV or aVO0 e response a lt data buffer 1 gt lt data buffer 2 gt lt data buffer 3 gt lt cr gt lt lf gt Get event counter value e command aM3 e response a0001 lt cr gt lt lf gt data buf lt event counts gt Get average maximum and minimum encoder position e command aM5 e response atttl lt cr gt lt If gt data buf lt average position gt ttt actual sampling period X of samples 1 sec Return data buffer e command aD or aDO Response a lt data buffer gt lt cr gt lt lf gt Return identification string e command al response a lt identificationstring gt lt cr gt lt lf gt Acknowledge active command e command a response a lt cr gt lt lf gt Address query command e command Response a lt cr gt lt lf gt Change SDI device node address e command aA lt new address gt Response lt new address gt lt cr gt lt lf gt Query Command e command aQ0 or aQ1 or aQ2 or aQ3 etc Response a lt information string gt lt cr gt lt lf gt Read Value of Set up Parameter e command aS0 aS1
137. se Colombo lt CR gt ENTRY password please amaa lt BACKSPACE gt sser lt CR gt ENTRY password please AMASSER lt CR gt After entering the correct ENTRY password introductory information is displayed after which the Main Menu appears The Main Menu is as follows for modem based units AMASS Data Technologies PDAS II MDM E350 Firmware c William P Thomas 1996 99 2000 01 DATE 2006 12 12 TIME 15 15 41 UNIT ID NO T35947857511030 SITE DESCRIPTION Bills Hobbit Hole Refer to 7 DIRECT COMMUNICATIONS COMMANDS for non menu based operation 5 MENU TREE REFERENCE 5 2 MAIN MENU 1 SET DATE amp TIME 2 VIEW DATA 3 SENSOR LOG TABLE 4 LOG FILE RETRIEVAL 5 SENSOR ALARM TABLE 6 SYSTEM SETUP 7 exit OR as follows for GOES based units AMASS Data Technologies Inc PDAS CS HDR E303 Firmware c William P Thomas 1996 97 98 99 GOES Address 7770175e UNIT ID NO T35947857511030 SITE DESCRIPTION Bills Hobbit Hole DATE 2006 12 13 2006 12 12 lt CR gt The user can make changes to the date time and DATE 2006 12 12 GMT offset upon entering the menu GOES based lt CR gt units only TIME 11 42 10 11 38 02 lt CR gt TIME 11 38 02 lt CR gt GMT Offset hh mm 05 00 lt CR gt A GPS time fix is pending r GMT Time HDR GPS Sync MAIN MENU 1 CS HDR GOES SETUP 2 VIEW DATA 3 SENSOR LOG TABLE 4 RETRIEVE LOGGED DATA 5 SENSOR ALARM TABLE 6 SYSTEM SETUP 7 exit
138. seseseeesees 5 5 5 1 1 Main Menu GOES CSHDR SETUP i cccccccscsccccceesessscesecccsesessscssccccscsesseessssceecsesseessseseeceessesessecs 5 6 D1 Vl SINTETATETZA TION atic dei BE AAA EEE NE BPN CEE SAE BAS os MT BAS od alee Nat od 5 9 SL DIAGNOSTICS achat hicsse ees T a RES RI 5 12 5 2 J MAIN MENU VIEW DATA iia civeic ds coed dobcedos Sadote cadens scic eB tes bess Bi c0 foe BES Woes i n E ea e 5 15 5 3 MAIN MENU SENSOR LOG TABLE neea ts cudies ds ckesbivtuvbusdescucustuceseas desbiabiveeveatds sess eves 5 16 5 31 BLOCKIBUNCTIONS arma u dy ects ts EGBA es BEATE Basti cbs Ea Bede as BONES EERE ES 5 21 3 3 2 INTERNAT ANALOGY SENSORS 4 0 5 2 ccc osFasieceeek ooh eis EES Rb avca Ret bev bs BAER Hees eFC 5 25 3 33 CONVERSION EQUA TION S is sige deus 3es Se a ee Rak eC A Acs Ree AE NSR 5 27 5 4 MAIN MENU LOG FILE RETRIEVAL 0 cccccccscecececevesevecevvcvcvvecvcvvvcvesevsvevevsvevevevevevevevessvssssvsssesvens 5 31 5 5 MAIN MENU SENSOR ALARM TABLE eeeeeeesesessssessererererererererererererererererererererererererererererererereeeeeeeee 5 34 5 6 MAN MENU SYSTEM SETUP vccc cgecccedevesesdocciedi aa th densa vieute iin E r e a aea EEE 5 38 5 61 Modem Config uration ss A A tooo a EE R EA rE a ieee 5 42 502 ANALOG SENSOR S TU P a E A Ee E Ar A E E 5 44 6 GOES DATA RETRIEVAL necites raean aiiai EE aE ET OEE ERN EEEE Saa EE 6 1 6 1 1 GOES Data Interpretation riie e E e EE e E eE en eSEE rE EE EE r ES 6 2 7 DIRECT C
139. t Canada models may only have one Connect to EvCnt1 on the detachable terminal strip as shown in section 8 3 Figure 7 NOTE Tipping buckets may only be connected to Event Counter 1 Event Counter 2 dose NOT provide debouncing high speed pulse counting only Now set up the logger to record data from the sensor using 3 Sensor Log Table gt 2 Add Edit Sensor When doing so the user must specify the value of each switch closure as noted on the sensor itself Therefore if each tip of a rain bucket equates to 0 25 mm of rain the user would enter 0 25 when prompted for the Scale of the event counter A typical logging configuration for tipping buckets would be as follows sampling time 60 minutes Enter 00 60 00 logging time every hour the last sample i e instantaneous data Enter 01 00 min max logging time none Enter 00 00 sampling start time current time is 12 56 and the user wants a log record at the top of every hour Enter 13 00 00 Fg SS Select a slot number from 0 to 15 SELECT SENSOR TYPE 0 Internal Sensor 1 SDI 12 Sensor For Switched 12V Enter S0 for Internal Sensors S1 for SDI 12 Sensors lt CR gt lt Q SELECT SENSOR _ 1 2 3 or 4 Single Ended Ch 5 Aux 0 20 V 6 Lithium V 7 Main Pwr V 8 Internal Temp 9 Differential 1 2 10 Differential 3 4 11 Event1 D 12 Event 2 D 13 PSE Encoder 14 PSE Event Cnt1 15 PSE Event Cnt2 User selects the event c
140. tched 12V Enter S0 for Internal Sensors S1 for SDI 12 Sensors 0 lt CR gt SELECT SENSOR 1 2 3 or 4 Single Ended Ch 5 Aux 0 20 V 6 Lithium V 7 Main Pwr V 8 Internal Temp 9 Differential 1 2 10 Differential 3 4 11 Event 1 D 12 Event 2 D 13 PSE Encoder 14 PSE Event Cnt1 15 PSE Event Cnt2 7 lt CR gt Sensor label VB lt CR gt Sensor label VB lt CR gt Sampling Interval hh mm ss 00 00 00 00 10 00 lt CR gt 5 3 3 CONVERSION EQUATIONS 5 25 Sampling Interval hh mm ss 00 10 00 lt CR gt Select Log Data Function 0 0 Instantaneous 1 Block Averaged wd 2 Block Capture Max 60 samples User accepts the current selection 3 Block Log Max 60 samples Instantaneous by pressing Enter 4 Block Toa ee lt CR gt Logging Interval hh mm 00 00 04 00 lt CR gt Logging Interval hh mm 04 00 lt CR gt MinMax Log Interval hh mm 00 00 24 00 lt CR MinMax Log Interval hh mm 24 00 lt CR gt ae Select Sensor Equation Type 0 No logging of min max by accepting an 0 None i ue interval of 24 00 1 value Scale Offset 2 value Offset Scale i F xP Polynomial These options are covered in section 5 3 3 xU User Defined xB Block Functions where x 0 10r2 lt CR gt Current Time 12 25 Enter SAMPLING Start Time hh mm ss 00 00 00 12 30 00 lt CR gt Enter SAMPLING Start Time hh mm ss 12 30 00 lt CR gt The Sensor Log Table would thus appear as follows Slot Log Senso
141. th both a modem and a GOES transmitter These systems are configured to provide GOES transmissions just as any other PDAS III HDR but also allow the station to be accessed via modem Both sections 8 2 2 and 8 2 3 above are applicable 8 3 Connectors Cables amp Terminal Strips e 9 pin DB9S comm connector for serial RS 232 communications to your computer see Figure 7 below A Programming Cable is supplied with your PDAS for direct communications to your computer 38400 baud 8 data bits 1 stop bit no parity as per section 4 1 e Various detachable screw terminal modules Figure 7 that is secured to the cover of the logger enclosure These terminals are for the SDI 12 data 12V input and ground switched 12V output all analog inputs and outputs Sockets allow for easy replacement installation of fuses e RJ11 for connection to your telephone line Only models with MDM in the product name are equipped with built in modems 8 4 Jumper Configuration 8 10 Amd No 2 Amd Date 2001 08 21 Rull telephone Programming connector Port amp cd gt s 4 PMLPDAS Iir ceva Switched 12V Figure 7 Detachable terminal strip mounted to all PDAS III rev H loggers ANALOG OUTPUTS Voltage references 5VDC 2 5VDC 4 ANALOG INPUTS channels 1 2 3 and 4 These may be used as single ended inputs or as two differential pairs 1 2 and 3 4 SWITCHED 12VDC OUTPUT 12V IN amp GROU
142. the SAT HDR Config Port which is used for configuring the SAT HDR via direct connect with a computer and the DCPCOMM software package that is also included with the logger Visit http www seimac com for more details The Operating System of the SAT HDR is upgradable via the Auxiliary port with DCPCOMM The Auxiliary port is only accessible from within the PDAS III enclosure It is not reccommended to perform this procedure in the field Upon power up the SAT HDR performs an internal initialization and self diagnostic which requires about one minute This period will be indicated by the status LED on the SAT HDR as described below The PDAS III will not be able to communicate with the SAT HDR during this time The function of the status LED is described in the following paragraph taken from the SAT HDR Programmer s Guide 8 4 Jumper Configuration 8 9 Amd No 2 Amd Date 2001 08 21 SAT HDR GOES Status LED The status LED on the SAT HDR GOES serves many functions On power up it will cycle through red green and yellow while performing internal diagnostics In the event that the failsafe is tripped it will flash red In the event that other faults are detected it will flash yellow While online the LED will be solid green while the GPS subsystem is acquiring a fix solid red while transmitting or it will be off while in a low power state It is possible to determine the state of the SAT HDR GOES at any time by briefly depressing t
143. the factory will only be processed if a completed RMA form is included with the shipment 10 SPECIFICATIONS 9 1 10 SPECIFICATIONS Processor Atmel 8958252 11 0592 MHz Internal RAM 256 bytes RAM External Memory site 1 Data space 4 slots of 32 kbytes SRAM Li bat backup site 2 Code space 2 slots of 64 kbytes SRAM Li bat backup sites 3 amp 4 1 Mbyte non volatile flash 32768 records Connectors e 9 pin DB9S comm connector RS 232 e det Terminal module for SDI 12 12VDC input analog inputs and outputs AIS Input Primary Voltage 0 20V ch 7 Lithium Battery Voltage 0 5V ch 6 Internal Temperature 0 2 5V ch 8 Ch 1 to 4 external inputs User configurable Def 0 5V 4 X 0 1V 1 2 3 4 4 X 0 2 5V 1 2 3 4 4 X 0 5V 1 2 3 4 4 X 4 100mV 1 2 3 4 Analog Output 2 5V and 5V reference GOES Support The following are available see price list e Support for Seimac SAT HDR e Support for Microcom GTX 1 0 Environmental Characteristics Operating 40 to 55 C Storage 60 to 100C Humidity lt 100 non condensing Battery Backup Standard CR2032 3VDC Lithium battery RAM backup date time unit no site description sensor setup Event Counter Input 2 ports Resolution 16 bit o 20 msec closure on port 1 o Frequency counter on port 2 Communications e Direct to Prog Port DB9S 38400 baud 8 data bits 1 stop bit
144. the logger If your terminal has local echo enabled you will see characters scrolling by on the screen NOTE Do not load a program that is stored on your floppy This will prolong the procedure 6 Wait until the logger displays a message to indicate that the upload is complete DO NOT TYPE ANY CHARACTERS OR PRESS ENTER WHILE WAITING This message is either Upload successful or something like Failure error 1 The time taken for loading in new software varies and depends on your computer but is about one minute on average 4 2 3 Load Retrieve Configuration The BOOT LOADER allows the user to load or retrieve configuration files The configuration file contains the logger set up including the logging schedule log file header etc This feature allows for quick set up of multiple loggers with the same configuration The factory can also e mail a configuration file if the customer requires assistance in the set up of a logger gt Selection 2 LOAD CONFIGURATION FILE allows the user to upload a Configuration file Successful completion of the upload is accomplished when the screen displays UPLOAD SUCCESSFUL Ensure that your communications terminal is set to Local Echo On Configuration files are generated by selection of 5 RETRIEVE CONFIGURATION gt Selection 5 RETRIEVE CONFIGURATION is used to generate a Intel Hex file which is the image of the Ram memory This file the Configuration file can
145. these settings is found in section 5 3 A simple configuration would be as follows value position 1 This indicates which of the returned data values is to be logged Must be between 1 and 9 sampling time 15 minutes Enter 00 15 00 logging time every hour the most recent sample i e instantaneous data Enter 01 00 conversion equation none min max logging time every 24 hours Enter 24 00 sampling start time current time is 13 56 and the user wants a log record at the top of every hour Enter 14 00 00 min max start time user wants min max log record at midnight Enter 24 00 00 Refer to the examples in section 5 3 4 3 HOW TO 4 6 4 3 2 SETUP AN ANALOG SENSOR DO NOT MAKE ANY CONNECTIONS UNTIL YOU HAVE READ ALL OF THIS SECTION Analog sensors may be voltage output sensors 4 20mA sensors resistive devices such as RTDs These sensors may be linear or non linear In either case the logger must convert the incoming data from these sensors into the desired engineering units eg psi metres kph mb C In the case of linear sensors the user need only specify a SCALE and an OFFSET for proper conversion of the data This is done when the user is prompted for a conversion equation when the sensor is being inserted into the Sensor Log Table section 5 3 With non linear sensors the user must define a more complex equation such as a polynomial of higher order 4 5 or even 6 order Otherw
146. thout changing any hardware in the logger This is accomplished via the Programming Port using the BOOT LOADER as described below Other functions that may be accomplished from the BOOT LOADER are to load or retrieve the configuration of the logger i e logging schedule log file header etc perform a first time initialize required following some upgrades or to select which memory space you wish to update run A or B NOTE Enable the Local Echo feature of your terminal when communicating with the PDAS III logger This is particularly useful when loading in new programs into the logger 4 2 1 BOOT LOADER Access the BOOT LOADER menu as follows 1 Connect the Programming cable to your computer and to the Programming port of the logger 2 Apply the power source to the logger 3 The following prompt should be displayed on the screen Press Enter for Boot Loader gt 4 IF you wish to enter the BOOT Loader press the ENTER key within 5 seconds of the appearance of the prompt and the following menu appears lt CR gt BOOT LOADER MENU 0 SELECT PROGRAM A 1 LOAD PROGRAM FILE 2 LOAD CONFIGURATION FILE 3 FIRST TIME INITIALIZE 4 START LOGGER 5 RETRIEVE CONFIGURATION Note that the BOOT LOADER menu is also accessible from the Main Menu as follows Main Menu gt System Setup gt Logger Setup gt Bootstrap Loader 4 2 2 Loading New Software The PDAS II loggers are equipped with two code memory spaces
147. three options Tabular EnvCan Excel Lotus and Sequential Please refer to APPENDIX E for examples of the available data formats as well as the examples found in sections LOG RETRIEVAL BY NUMBER COMMAND p 7 4 and LOG RETRIEVAL BY DATE COMMAND p 7 5 3 Column Delimiter is used in conjunction with the Excel Lotus format see 2 Log File Format above in that it allows the user to define the delimiter between columns This feature accommodates various 5 6 Main Menu SYSTEM SETUP 5 38 preferences in spreadsheet programs Note that the delimiter character is defined as its hexadecimal value in the ASCII table Therefore the TAB character is entered as 09 and the comma character as 2C 4 Log File Filter is a convenient and flexible facility that allows the user to restrict the output during downloads The data output is selectable by parameter as well as by occurrence Therefore the user can select to only download data from parameter HG for example and of that data only samples that occurred in the first minute of every hour This would be done as follows 4 lt CR gt SELECT FILTER LABEL None N N HG 0 VB 1 WV 2 QR 3 Select Log Slot 0 15 0 lt CR gt Enter Filter Interval hh mm ss HH 00 SS Note that the user also has the option of NOT restricting the output to a single parameter by selecting N for None as shown above Therefore the output can be restricted based on occurrence only NOTE THE
148. to the 12V for continuous power or 12V SW for software controlled power see 4 3 4 p 4 9 Connect the wire labeled supply usually black to the desired channel say 4 terminal AIN 4 Connect the shield wire to GND Next install a termination resistor in the socket corresponding to the channel to which the sensor is connected say R4 The termination resistor should have a tolerance no greater than 1 with a value determined by Ohm s law V IR Therefore the termination resistors should be as follows Table 1 Proper values for termination resistors Range of input channel Value of termination R 0 1 V 1V 0 020A 50Q 0 2 5V 125Q 0 5V 2500 Once connections are complete the user may power up the logger and set up for sampling and logging data from the sensor It may also be desirable to define a conversion equation in order to log data in engineering units All of this is done by selecting 3 Sensor Log Table gt 2 Add Edit Sensor The PDAS III menu system is user friendly and guides the user through the setup sequence To view examples of this refer to section 5 3 2 4 3 HOW TO 4 7 4 3 3 SETUP A TIPPING BUCKET Tipping buckets rain gauges and other sensors that use switch closures must be connected to an event counter These sensors only have two wire connections to be made GND and event counter The PDAS III loggers are equipped with two event counters Environmen
149. to and including that day In order to determine the total number of log entries made as well as the amount of free memory use the status option It is reasonable therefore to verify the status of the log file with item 0 before retrieving with either item 1 or 2 The user can invoke the download filter by appending f to either selection 1 or 2 that is 1 f or 2 f The log file filter is defined from within the 6 System Setup gt 0 Log File Functions Note that if the user wishes to delete the Log file note that this is not normally required since the PDAS uses a circular buffer by default he she uses the SYSTEM SETUP submenu see 5 6 gt Selection of 0 Status would be as follows 0 lt CR gt Storage Capacity 32768 Records Used 31383 Current reading 15000 Oldest reading 16385 Error Flag 0 This indicates that logging is currently taking place in sector 4 of the flash memory explained below that no error has occurred and that the memory has rolled over at least once In its default configuration the PDAS uses a circular buffer with 8 sectors for logging data so that when the flash is full logging takes place over old records The 8 sectors of the flash memory are of equal size 4096 records and are as follows Sector 1 Sector 2 Sector 3 Sector 4 Sector 5 Sector 6 Sector 7 Sector 8 1 to 4097 to 8193 to 12289 to 16385 to 20481 to 24577 to 28673 to 4096 81
150. turned off Note that this method is not applicable to sensors that must be powered continuously such as shaft encoders e the SDI 12 addresses are numbered from 0 to 9 on both channels A and B e the user need not put at the end of the SDI 12 command as this is done automatically by the logger e When prompted Enter value position 1 9 a 1 was entered since we desired the first of the parameters returned that is the stage only one parameter may in fact be returned by the sensor e the sampling interval is expressed in hours minutes and seconds whereas the logging and min max intervals are expressed in hours and minutes e the user is given the option of logging instantaneous individual values or blocks of data see 5 3 1 BLOCK FUNCTIONS e a conversion equation sensor equation was not defined Select Sensor Equation Type gt none because the sensor in question provides data in engineering units and e the user indicates when the sampling begins Note that the start time is expressed from 00 00 01 to 24 00 00 midnight and that all seconds within the day are valid that is there are no restrictions and midnight 24 00 00 is a valid start time A new feature to PDAS loggers with firmware 2 0 and later is that the Start Time is specified in hours minutes and seconds Therefore the user has complete control to within a second as to when sampling occurs 5 3 1 BLOCK 5 19 Here again is
151. ure then for Number of samples enter 12 Logging Rate and Min Max Rate set to 00 00 Start Time one minute after the current time 2 Wait 2 minutes 3 Select 2 View Data gt 2 Captured Block Data then select your sensor The block of 12 samples is displayed If the settling time of the sensor is between and 12 seconds it will be seen here If for example the data is stable after 3 seconds set the switched 12V delay time to 3 seconds or more 4 3 HOW TO 4 9 4 3 5 USE MULTI VALUE SDI 12 MODE SDI 12 sensors may return up to 9 data values with a single command latest version of SDI 12 protocol at time of printing is 1 3 see 3 2 The user may select which of these values to log by specifying the Value Position as explained at the bottom of page 4 6 However the user may wish to log several or even all of the data values that are returned by a single SDI 12 command In addition each parameter may have a separate name sensor label Logging Rate and Conversion Equation The PDAS III provides an efficient means of doing this without having additional SDI 12 commands issued for each data value When configuring the PDAS to log data from an SDI 12 sensor the user is prompted for the number of values to be logged with the single SDI 12 command If this number is greater than 1 the PDAS will automatically be configured for Multi mode and make all necessary prompts as shown in the examples below E
152. ust be preceded with an A 013AMASS Data PSE D100 eee Response from sensor at address 0 another example OISAMASS Data PAGIOO SSS 013AMASS Data PAIM C100 Assuming connection to channel B These or similar responses confirm that communication has been established with the sensor Error messages indicate improper connections see 8 3 of the sensor improper addressing in the command or even a defective sensor Note that the character in the command line above is a wildcard for the address and that this technique should only be employed when there is a single sensor connected to any given SDI 12 channel otherwise the proper address must be used eg 0 1 2 3 4 5 6 7 8 or 9 Now configure the SDI 12 sensor scale offset address etc using the appropriate SDI 12 commands as per the command set listed in the manual of the sensor Now the logger can be configured to sample and log data from the sensor This is done from 3 Sensor Log Table Select 0 Display Log Table This table contains the logging schedules of all parameters at a glance Now select 2 Add Edit Sensor to insert the SDI 12 sensor into one of the 16 slots for logging The menu system guides the user through the process When doing so the user will be prompted for a value position sampling time logging time instantaneous or averaged data conversion equation min max logging time sampling start time min max start time A definition for each of
153. values are based on the samples as defined by the Sample Rate therefore the accuracy in determining the minimum or maximum of the sensed value is dependent on the frequency of the sampling that is the Sample Rate 6 1 1 GOES Data Interpretation 6 2 As the GOES equipped PDAS III i e PDAS II HDR performs its logging routines as defined in the Sensor Log Table see 5 3 Main Menu SENSOR LOG TABLE it records data to both the internal flash i e the log file as well as to the internal PDAS II GOES buffers These internal buffers are 96 bytes in size are numbered 0 to 15 and correspond to the sensor slots found in the Sensor Log Table They are used so that data that is loaded into the transmitter is formatted to a fixed width Note however that only data that is logged according to the parameter Logging Rate appear in these buffers that is instantaneous or averaged data Min Max values do not use these buffers but rather are loaded immediately into the transmitter which is why the Min Max entries shown above have single readings only The user may view the contents of any of the sixteen GOES buffers if he she wishes by exiting the menu and by typing see section 7 DIRECT COMMUNICATIONS COMMANDS G lt CR gt where is the sensor slot number of the parameter whose status is desired For instance if the parameter labeled HG occupies slot 0 then exit the menu and type GO lt CR gt as follows G0 lt CR gt 0 6280 0 7293

PDAS-III (rev H) - AMASS Data Technologies Inc

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