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Modbus Function Codes

The following table identifies the functions that are supported. Each diagnostic counter is
cleared when the device is powered up or reset.

Code Hex

Subcode

Hex

Read Holding Registers

0x03

Read Input Register

0x04

Write Single Register

0x06

Diagnostic

0x08 Return Query Data

0x00

Diagnostic 0x08

Clear

Counters

0x0A

Diagnostic

0x08 Return Bus Message Count

0x0B

Diagnostic

0x08 Return Bus Comm Error

0x0C

Diagnostic

0x08 Return Bus Exception Count

0x0D

Diagnostic

0x08 Return Slave Message Count

0x0E

Diagnostic 0x08

Return

Slave Broadcast Count

0x0F

Diagnostic

0x08 Return Bus Char Overrun Count 0x12

Write Multiple Registers

0x10

User Defined Code

0x41 GetLog

Identifying Registers

There are two types of data that can be accessed using the Modbus protocol. These
include

Holding

and

Input

registers.

Содержание MONITOR

Страница 1: ...MONITOR Data Logger OPERATIONS MAINTENANCE MANUAL Part No 8800 1174 Revision 1 04 Oct 20 2008 1 ...

Страница 2: ...pping Bucket 35 Solar Radiation Sensor 36 SDI 12 Multi Parameter Sensor 37 Logging 39 SD Card Interface 41 MONITOR Time 42 SDI Clock Synchronization 42 MONITOR Errors 44 Clearing errors 44 Measurement errors 44 System errors 45 Front Panel Interface 46 Navigating the Menus 46 Turning Display On Off 46 Backlight 46 Contrast 47 Viewing Data 47 Front Panel Menu Tree 48 RS232 Command Line Interface 49...

Страница 3: ... Positioning 65 GPS Operation 65 GPS Errors 65 Jumpers 66 RJ45 to RS232 Connector 66 Modbus 68 Modbus Menu Tree 68 Modbus Menu Options 68 Modbus Function Codes 70 Get Log Command 73 Appendix A Monitor Specifications 75 Appendix B Sutron Customer Service Policy 77 Appendix C Commercial Warranty 78 Sutron Manufactured Equipment 78 Non Sutron Manufactured Equipment 78 Repair and Return Policy 78 Exte...

Страница 4: ...g data or setups MONITOR can be used standalone or connected to wireless modems for integration into automatic data collection systems Models MONITOR comes in several versions to meet varied customer needs The table below shows the models currently offered Check with Sutron for additional models or for a customized version of MONITOR MONITOR 1 Display Keypad qty 2 0 5VDC inputs qty 3 39mV 312mV or...

Страница 5: ...ket 7 TB Ground Tipping Bucket ground Power Connections MONITOR requires external 12V power to operate The most common power source is a lead acid battery Connect the battery to pins labeled Battery and Battery Ground the external terminal strip SDI 12 Connections The SDI 12 interface has only 3 connections GND 12V and Data Wire these connections directly to the SDI 12 connections on a compatible ...

Страница 6: ... Pin 9 can be used to provide 12V 5V or no voltage Certain devices such as Bluetooth dongles require power on that pin Any setting will work for talking to a PC What voltage is output is controlled by an internal jumper To setup the jumper the case must be opened Once the case is open the jumper is easily accessible The Jumper in question is J19 and is located next to the RS232 connector Set the j...

Страница 7: ... 0 5V B Voltage input for sensors with 0 5V output 4 AGND Analog ground 5 VREF 2 5V output turned on during warmup and analog sensor measurement 6 DIFF C Differential voltage input for bridge type sensors 7 DIFF C 8 DIFF D Differential voltage input for bridge type sensors 9 DIFF D 10 24V 4 20ma 24 Volt output for 2 wire 4 20ma sensor 11 I Input 4 20ma Current input for 2 wire 4 20ma sensor 12 Cou...

Страница 8: ...Terminal Block Description Notes 18 DIFF E Differential voltage input for bridge type sensors 19 DIFF E 20 I O F Digital input discrete 21 I O G Digital input discrete 22 GND Ground 8 ...

Страница 9: ...ors Precipitation using a tipping bucket Wind Speed Wind Direction RM Young or Gill ultrasonic via frequency analog and SDI 12 inputs includes vector averaging Stage using SDI 12 Shaft Encoder Radar Level Recorder Stage Discharge Recorder analog submersible Bubbler Barometric Pressure using the SDI 12 Accubar Solar Radiation via Differential Analog Input Inputs available Each of these inputs is ca...

Страница 10: ...y its setup Each of the 16 measurements has its own setup Changing the setup of one measurement will not affect other measurements except for Meta measurements To access the measurement setup using the front panel press UP or DOWN until the Station Setup menu shows Press RIGHT and the Measurement Setup will show Press RIGHT again and choose which of the 16 measurements to setup by pressing UP or D...

Страница 11: ...e interval controls how often the measurement is made and the time controls when the measurement is started E g time 00 00 00 interval 00 10 00 00 10 00 data measured and logged 00 20 00 data measured and logged 00 30 00 data measured and logged and every ten minutes afterwards E g time 00 00 30 interval 00 05 00 00 00 30 data measured and logged 00 05 30 data measured and logged 00 10 30 data mea...

Страница 12: ...ufficient to take one sample every minute the Sampling Interval should be set to one minute That way MONITOR will take 60 samples every hour with approximately a minute break between each sample If the sensor being used were noisy and needed filtering MONITOR could take several Subsamples and average them into each sample In the setup for temperature above if the number of Subsamples were set to f...

Страница 13: ...utput by the sensor into desired units The required slope and offset are provided by the sensor manufacturer Note that MONITOR supports more complex equation processing see Equations below Slope and offset are applied after equations The reading before slope and offset are applied is referred to as the raw reading For example if an analog sensor were to provide a voltage of 2 volts and the user ha...

Страница 14: ... in terms of X which will be applied to incoming sensor data You may also reference each measurement by its label or by the M1 M2 designator The expression is not case sensitive The following functions are available SIN COS TAN ARCTAN e g COS 90 0 SQRT is square root e g SQRT 9 3 To raise a number to a power use For example X 2 is x squared 2 X is 2 to the power of X EXP if EXP x y then LN y x e g...

Страница 15: ...mments can be contained within braces convert from degrees Celsius to degrees Fahrenheit X 9 5 32 Other examples SIN X COS X X 3 LOG X X 1000 1000 X 1000 X would limit the value so that it could never be greater than 1000 STEINHART 10000 X 2 5 X 0 001127098 0 000234445 0 0000000865403 temperature sensor Details Details can be enabled or disabled If disabled which is the default the final result is...

Страница 16: ...save power see section on averaging If two separate measurements are scheduled to measure the same sensor at the same time as they will in the examples above only one reading of the sensor is made and the result is shared by both measurements Measurement Types The Measurement Type setting will determine what kind of measurement is made Each of the different types will unlock other settings For exa...

Страница 17: ...r is connected issue the 0Ax command changing the sensor s address from 0 to x where x is a unique number or letter of your choice The front panel Diagnostics SDI Find menu can help do this SDI 12 Command When the measurement type is set to SDI 12 data is obtained by sending a command to the SDI 12 sensor The sensor will reply with the measured data The command is set by the user through the SDI 1...

Страница 18: ...eed to be set up It does not matter if these measurements are scheduled for the same time as MONITOR will have to issue multiple commands to the sensors When multiple measurements of type SDI 12 are scheduled to go at the same time MONITOR orders the measurement commands so that concurrent measurements are commanded first Non concurrent measurements occur while waiting for concurrent results Also ...

Страница 19: ... Inputs 0 5V A and 0 5B are designed to be general purpose 0 5 Volt DC input While sometimes referred to as a single ended input it is designed to measure voltage with respect to analog ground These inputs have a high impedance 2 Meg Ohms and will not load down or draw significant current The input range is 0V to 5V 19 ...

Страница 20: ...bridge sensor will be powered on VREF sometimes referred to as excitation have a signal and signal and provide a wire for the analog ground NOTE If after wiring the sensor it displays a negative reading you may reverse the and leads coming from the sensor NOTE The common mode voltage for differential sensors is 0 5V to 3 7V If the sensor is floating it should be tied to VREF and not to AGND in ord...

Страница 21: ...he input range of the sensor that is being connected E g if the sensor provides a reading from 0 to 100mV choose the 312mV option If you were to choose the 39mV option whenever the sensor provided a reading greater than 39mV the unit would indicate a sensor failure 21 ...

Страница 22: ...sensor is provided by the 2 wire loop and does not typically require additional connections MONITOR provides a 24 Volt supply that is designed just for the 2 wire interface 4 20ma loop Warmup Analog sensors are powered by MONITOR via one of several outputs VREF reference voltage which provides 2 5V Switched Battery which provides whatever voltage is powering MONITOR presumably 12V 24V which is nor...

Страница 23: ...nd Speed SDI 12 Wind is unlike all the other measurements in that it is a combination of two measurements one setup for wind direction and the other setup for wind speed In order to correctly setup a wind sensor two measurements must be set up One measurement must be wind speed and the other wind direction Setup the measurements in order for example make measurement one a wind speed sensor and mea...

Страница 24: ...ailable for wind measurements Digital Use the setting Digital Type to tell MONITOR what kind of sensor is connected Digital Type MONITOR supports the following digital types o Input F terminal 20 o Input G terminal 21 o Frequency terminal 12 o Period terminal 12 Input F and Input G are discrete inputs They will read either 0 or 1 Slope and Offset can be applied Frequency and Period share the same ...

Страница 25: ...hour When scheduling meta measurements take care that they occur at the same time or after the measurement they reference If the meta and the reference are scheduled for the same time MONITOR will try to delay the meta measurement until the reference completes Soil Soil measurements are used with specific soil moisture conductivity sensors available from Sutron Two sensors are available soil moist...

Страница 26: ... 2 0 136 X 3 Soil temperature Temperature Fahrenheit 45 11 282 8 V1 Please note that you do not need to enter these equations into monitor Simply setup the measurement type as Soil and choose the appropriate Soil Type MONITOR will do the rest Please note that the soil temperature reading will be in Fahrenheit To convert to Celsius set the slope to 0 555556 and the offset to 17 77778 or use equatio...

Страница 27: ...ne to reset measurement one This will affect only one measurement Measurement Calibration MONITOR offers an easy way to change the current reading of any measurement Via the front panel navigate to the last reading of the measurement top level of the menu tree Press SET and enter the desired value This calibration procedure has the effect of modifying the measurement s offset Measurement Two Point...

Страница 28: ...ll automatically appear whenever a setup change is attempted Via front panel go to Station Setup Other Setup Password Press set and enter a password Press set again and the password will be enabled Using the command line type PASSWORD XXX to set password to XXX Type PASSWORD to disable password usage To disable the password enter a blank password Logging out is accomplished by turning off the disp...

Страница 29: ...e for serial communications The range is from 9600 to 115200 bps with the data bits fixed at 8 the parity set to N none and the stop bits set to 1 Please see the section on Command Line for more details Hardware Flow Ctrl This setting enables hardware flow control handshaking for serial communications If enabled Monitor uses the CTS and RTS lines on the RS232 Please see the section on Command Line...

Страница 30: ...p connect like so RM Young output MONITOR input AZ SIG ANALOG 0 5V either A or B WS SIG CNTR IN REF AGND V SUPPLY SW D BATT AX EXC VREF A 1 0 MOhm resistor needs to be placed from VREF or AGND to AZ SIG This will ensure the value always goes to 355 or 0 with AGND when the potentiometer is in the open region This MONITOR setup will measure wind data from the RM Young Wind speed setup Value M1 Activ...

Страница 31: ... 1 or better This completion resistor will help MONITOR to calculate the resistance of the thermistor by measuring the voltage generated by two resistances a known and unknown Since our thermistor is a 10k Ohm type we will use a 10kohm completion resistor The equation 10000 X VREF X Where the 10000 is our completion resistor in ohms and X is the voltage reading will give us the resistance of the t...

Страница 32: ...ed to be driven by an excitation voltage VREF for this example and the output of the bridge is a differential reading that will have a full scale output that is a percentage of the excitation voltage VREF The sensor will have a rated pressure and a typical full scale output for a particular excitation voltage This example will be for a 10 PSI transducer that has an output of 100 mV with an excitat...

Страница 33: ...e shield wire on the pressure transducer to the earth ground on the side of the Monitor The wire color column refers to a Druck PDCR 1830 series Sensor The setup to have the MONITOR measure STAGE from the sensor in units of feet is as follows Stage setup Value Active On Label Stage Meas Type Analog Analog Type Diff C Input Range 39 to 39mV Warmup 1 sec Averaging Time 00 00 00 Slope 922 92 The slop...

Страница 34: ...he differential input to be able to select a smaller scale on the A D input in our example we will select 39mV Connect the sensor as follows Junction DIFF C input 4 5 6 7 Terminal Block Monitor Description Thermocouple Description 4 AGND wire to DIFF C 5 VREF not used 6 DIFF C Positive Output 7 DIFF C Negative Output This MONITOR setup will measure the temperature difference from the sensor in uni...

Страница 35: ...uple temperature Tipping Bucket This section describes how to physically connect the sensor and how to configure the setup in MONITOR The sensor used in this example is a standard switch closure tipping bucket This sensor closes a switch for each tip of the bucket and has two leads polarity doesn t matter To wire it up connect like so NOTE The lead numbers are not marked with numbers this is just ...

Страница 36: ... like so Solar Radiation output MONITOR input Wire Vref to Diff C SIG Diff C SIG Diff C This MONITOR setup will measure solar radiation in units of Watts per m from the sensor that has a sensitivity of 79 4uV Wm 0000794 V Wm Since the Monitor multiplies the voltage by the scale factor we want to know how many Wm one volt equals Also we have tied the side to the Vref to keep the input within the ra...

Страница 37: ...ollows SDI 12 Sensor MONITOR input Data Terminal Block 3 Power Terminal Block 4 Power Terminal Block 5 This MONITOR setup will measure multiple parameters from a single SDI 12 sensor Note how the address command measurement time and interval are all the same This is what tells Monitor to only issue the measurement command once then get the three parameters from the one measurement Wind speed setup...

Страница 38: ...l 00 15 00 Meas Time 00 00 00 Averaging Time 00 00 00 M3 Active On Label SDI0P3 Meas Type SDI 12 SDI 12 Address 0 SDI 12 Command M SDI 12 Param 3 Meas Interval 00 15 00 Meas Time 00 00 00 Averaging Time 00 00 00 38 ...

Страница 39: ...d resolution name e g STAGE measurement reading optional measurement quality optional Here are several examples of log entries STAGE 10 11 2006 10 00 00 3 08 Setup Change 10 10 2006 16 22 33 Reset Powerup 11 09 2006 15 52 17 1 To help preserve data integrity and reliability there is not a means of erasing data from the log Occasionally MONITOR will log events Events are used to help troubleshoot t...

Страница 40: ...downloaded data You may also ask for data from the last X days In addition MONITOR remembers the last log download and will allow downloads since last download which means that the only parts of the log downloaded are those that have not been previously downloaded Logged Measurement Time Measurements are not instant Once initiated a MONITOR measurement will take the user defined averaging time plu...

Страница 41: ...eds to do is leave the SD card plugged in and MONITOR will periodically download the log and save it to a file on the SD card With an SD card left plugged in four hours after the user stops using the display and every four hours afterwards the unit will download the logged data and append it to a file Once the file exceeds about 2MB a new file will be started The backup will work until the SD card...

Страница 42: ...he SDR RLR or CF Bubbler you may connect the GPS to the SDI 12 device rather than to MONITOR The correct time will then be used by the sensors and by MONITOR This way you will free up the RS232 port on MONITOR for another device such as a modem When recording is enabled and every 24 hours thereafter MONITOR will perform a time sync with all the Sutron devices that support the XDT command Every tim...

Страница 43: ...Example set date time command 0XDT2008 06 26 13 15 00 43 ...

Страница 44: ...ure and to the data commands It is also recorded for analog measurements when the MONITOR analog to digital converter indicates a problem reading the input which could be to the input voltage being out of range or not being connected MONITOR will not always be able to tell if an analog sensor is present When the sensor failure error occurs MONITOR will change the sensor reading to match the user s...

Страница 45: ... command or via the SDI 12 XDT command MONITOR sports an RTC real time clock backed by an internal battery The clock is set at the factory The RTC keep ticking even if the main battery is removed This means that MONITOR should not forget the correct time when it loses power If it does it is time to replace the RTC battery The battery lifetime is about five years Battery Low If the battery voltage ...

Страница 46: ...s made immediately Front panel key functions a RIGHT will navigate to a sub menu assuming there is one b LEFT will go back to the parent menu c UP and DOWN will navigate among the menus on the same level d SET starts a change or confirms an action e CANCEL cancels a change or action The CANCEL key is also labeled OFF f CANCEL also goes back levels g Hold CANCEL to go to the top of the menu h Hold ...

Страница 47: ...eading Pressing SET while viewing a live reading will allow the user to change the current reading MONITOR ends up changing the Measurement Offset To view previously measured data from the log press RIGHT You may then press UP or DOWN to scroll through the logged values for that measurement Understanding the indicator If MONITOR displays a after a value if there is a question about the quality of ...

Страница 48: ...Digital Digital Type Wind Wind Type Wind Averaging Battery Analog Analog Type Input Range Warmup Meas Interval Meas Time Averaging Time Sampling Interval Subsamples Slope Offset Use Equation Equation Details Log Error Value Right Digits Sensor Test Measurement Defaults Modbus Settings Modbus Enable Modbus Device ID Modbus Protocol Modbus Parity Delay before Tx Delay after Tx Modbus BaudRate Other ...

Страница 49: ...ng communication automatically done by HyperTerminal If connecting to a PC use a standard DB9 serial cable If connecting to a modem or a logger you are likely to need a null modem adapter To start command line mode send carriage return or line feed or both If using HyperTerminal or a similar program simply press ENTER MONITOR will respond with a prompt Once in command line mode type HELP to get a ...

Страница 50: ...lue and the range of the field are shown For example typing STATION NAME will show the current station name Typing STATION NAME SUTRON will change the station name STATION NAME Setup NOT changed Station Name DEMO max length 23 STATION NAME SUTRON Setup changed Station Name SUTRON max length 23 Changing measurement setup fields requires that the measurement be named For example to change the Measur...

Страница 51: ... for more information Instead of using M1 M2 etc you may also the measurement s Label For example if you have named measurement one as BARO typing BARO will show the setup of the measurement an typing BARO MEAS will make a new measurement and show the results To change the current reading of a sensor type M1 12 5 This will change the Measurement Offset such that the said measurement reads the user...

Страница 52: ...f a user setting up measurement one for a battery voltage measurement making a measurement and turning recording on M1 ACTIVE 1 Setup changed Active On Range 0 Off 1 On M1 M1 Sense1 SETUP Active On Label Sense1 Meas Type SDI 12 SDI 12 Address 0 SDI 12 Command M SDI 12 Param 1 Meas Interval 00 15 00 Meas Time 00 00 00 Averaging Time 00 00 00 Slope 1 0000000 Offset 0 0000000 Details Off Log Error Va...

Страница 53: ... are preceded with an no help text is given no range is shown for measurement no confirmation of commands is shown and no key stroke is expected between scrolling pages Auto Output When MONITOR has auto output mode enabled it will automatically send data out on the RS232 port For more details please see section Auto Output RS232 Command Reference Documentation Legend If any command is followed by ...

Страница 54: ...llowed by 0 it will clear system resets DOWNLOAD See LOG EXIT Quits command line HELP Brings up the help lists commands Also try HELP SETUP and HELP LOG HI System replies with Hello LAST Shows the last measured reading of every active measurement This command does not make a new measurement only shows the last results of the last measurement If preceded by the measurement designator E g M1 LEAS it...

Страница 55: ...T Does a software resets of the system RESETS 0 Shows system diagnostics including system resets If followed by 0 it will clear system diagnostic status SDI Use this command to gain access to the SDI 12 bus You may put any command on the SDI 12 bus and see any reply SDI xxx puts xxx on the SDI 12 bus E g type SDI 0M to send the 0M command Additionally type SDI FIND to seek sensors MONITOR will iss...

Страница 56: ...ully detailed in section Other Setup STATION NAME RECORDING AUTO OUTPUT GARMIN GPS GPS LOCAL TIME OFFSET List of measurement setup variables The listed variables are preceded with M1 indicating they are settings for the first measurement If they were preceded with M2 they would reference the second measurement M16 is the last measurement For full details on what the variables do please see section...

Страница 57: ...ave the setup file to the card preferably to the Monitor Setup folder Try to use a filename that is shorter than 20 letters which is how wide the display is Insert the card into the unit and press the DOWN arrow to show the Read Setup from Card menu Press SET and then use the UP DOWN and RIGHT keys to select the directory and file Once the desired file is shown press SET to load the setup HyperTer...

Страница 58: ...its 8 Parity None Stop Bits 1 Start with the Sutron unit powered DOWN Open the serial port with HyperTerminal Power up the Sutron unit simultaneously while holding the Escape key on the keyboard of the computer running HyperTerminal Release the escape key once the unit has powered up An upper case C will repeat every 2 seconds or so over the serial port At this time use Send File and choose Y Mode...

Страница 59: ... internal jumper for external power AND for either 5V or 12V depending on which you provide A null modem is needed between MONITOR and the modem The default settings from Sutron for the modem will work If the settings have been changed issue these commands to the modem AT F ATS0 1 ATE0Q1 D0 W This is what the commands mean AT F set to factory defaults S0 1 answer on first ring E0 don t echo charac...

Страница 60: ...powering the station however remember that it will increase the power consumption both when the modem is idle and when it is connected As a result you will need to make sure your battery is large enough to provide the power needed by the station 60 ...

Страница 61: ...lied to sensors through the interface The use of a standard serial interface eliminates significant complexity in the design of the data recorder Low cost small sensors can be designed with SDI 12 compatibility SDI 12 data recorders interface with a variety of sensors SDI 12 sensors interface with a variety of data recorders Personnel trained in SDI 12 will have skills to work with a variety of SD...

Страница 62: ...st be assigned a unique address This is normally done by setting dipswitches on the sensor or by software commands Failure to set unique addresses for each sensor will result in failure of the communications interface i e no data logged Consult the sensor manufacturer s data for information on your particular sensor s When setting up multiple SDI 12 sensors connect one sensor at a time Once a new ...

Страница 63: ... to issue the aM command For example 7M would collect data from the sensor at address 7 The sensor will respond with a 5 digit code the first digit is the address the next 3 digits are the required time for measurement in seconds and the last digit is the number of data values returned Wait for the number of seconds Then issue the aD0 address D zero the sensor should respond with one or more data ...

Страница 64: ...etup When first installing the GPS make sure the GPS is positioned so that it has a clear view of the sky Make sure to connect the GPS to the MONITOR via RS232 Sutron provides a custom RJ45 to RS232 connector for this purpose the diagram for the connector is on page 66 After connecting the two devices go the Station Setup menu on the front panel of the MONITOR Find the entry called Garmin GPS and ...

Страница 65: ...of the sky in order to properly function Place the GPS antenna in the most open space possible Do not place it directly under anything nor directly beside something Always attempt to achieve a full sky view with the antenna Place the GPS antenna high up on a pedestal or in a protected location Flat surfaces may tend to cover with ice and snow more so than elevated locations Keep away from areas wh...

Страница 66: ...es that the MONITOR provides 12 Volts on RS232 which the Garmin GPS requires in order to function If the MONITOR is reporting No GPS Detected it may be the case that the jumper is not properly setup To setup the jumper the case must be opened Once the case is open the jumper is easily accessible The Jumper in question is J19 and is located next to the RS232 connector Place a connector on jumper J1...

Страница 67: ...ellow Black 8 CTS Remote power on off On if 0 3V Off if open circuit 4 Blue Red 2 Port 1 Data in NMEA input to GPS 5 White Green 3 Port 1 Data out NMEA output from GPS 6 Gray Yellow no connect PPS 1Hz 7 Green Brown no connect Port 2 Data in RTCM output 8 Violet White no connect Port 2 Data out reserved 67 ...

Страница 68: ... Hitting Set will enable Modbus Modbus Menu Tree Modbus Setup Modbus Enable Modbus Device ID Modbus Protocol Modbus Parity Delay before Tx ms Delay after Tx ms Modbus Baud Rate Modbus Menu Options After enabling Modbus other setup options become available allowing more customization of the unit Initially each of these settings is defaulted to those expected by the Modbus protocol Modbus Enabled De...

Страница 69: ... be generated by the user Note Care must be taken to make sure the selected protocol matches that of the master or there will be communication problems Modbus Parity Default is Even Available choices include Even Odd and None Note Care must be taken to make sure the selected parity matches that of the master or there will be communication problems Modbus Delay before Tx Default is 10ms This identi...

Страница 70: ...x08 Clear Counters 0x0A Diagnostic 0x08 Return Bus Message Count 0x0B Diagnostic 0x08 Return Bus Comm Error 0x0C Diagnostic 0x08 Return Bus Exception Count 0x0D Diagnostic 0x08 Return Slave Message Count 0x0E Diagnostic 0x08 Return Slave Broadcast Count 0x0F Diagnostic 0x08 Return Bus Char Overrun Count 0x12 Write Multiple Registers 0x10 User Defined Code 0x41 GetLog GL Identifying Registers There...

Страница 71: ...time 1002 0 59 Second of current time 1003 0 59 Year of current time 1004 2000 Month of current date 1005 1 12 Day of current month 1006 1 31 Recording status 1007 1 means running 0 means stopped Reset Unit 1008 Write 1 to reset Modbus Protocol 1009 0 RTU 1 ASCII Force Measurement 1010 0 force all active measurements 1 16 force that measurement only Bus Message Count 1011 Read Only Bus Comm Error ...

Страница 72: ...rs and their locations are below Modbus registers Last Measured min max number of samples raw measurement msw lsw msw lsw msw lsw msw lsw msw lsw M1 1 2 101 102 201 202 301 302 401 402 M2 3 4 103 104 203 204 303 304 403 404 M3 5 6 105 106 205 206 305 306 405 406 M4 7 8 107 108 207 208 307 308 407 408 M5 9 10 109 110 209 210 309 310 409 410 M6 11 12 111 112 211 212 311 312 411 412 M7 13 14 113 114 ...

Страница 73: ...on as well as translation to ASCII if that is the selected protocol the ASCII protocol uses two bytes to represent every data byte If numbytes is the all log records found will be returned Regardless of the requested numbytes only complete log records are returned The format of the reply is as follows GLR status recordID numbytes data numbytes data The value of status can be any of the following v...

Страница 74: ... 10 89 5 2 25 4 0 Wrapped for illustration purposes only The GLR response will contain as many log records as can fit into the response The numbytes value in the GLR response does not include the comma preceding the data and refers to the number of data bytes from the log that are being returned not the number of packet bytes used to store the response which would be twice the data bytes when ASCI...

Страница 75: ...nth Optional GPS clock Log capacity 250 000 readings flash memory Data Communications RS232 DB9 female connects to PC PDA modem radio 5 or 12V on pin 9 71 mA at 5V Key Features Clock Internal real time clock w battery backup Standard accuracy 2 minutes month Optional high accuracy seconds month Log capacity 250 000 readings flash memory Data Communications RS232 DB9 female connects to PC PDA modem...

Страница 76: ...ms 25C 0 38uV RMS Accuracy 25C 0 01 Input Impedance 3M Ohm 4 20mA Analog Input Range 0 22mA Resolution 1nA Accuracy 25C 0 02 Loop Power 24V 5 short protected Loop resistance 100 Ohm built in load Digital Input 1 tipping bucket type 100KOhm resistor to 5V Switch contact type Digital Input 2 frequency type Maximum frequency Input range 0 5V Ordering Information Part Number Description Monitor 1 Moni...

Страница 77: ... we find a solution Sometimes a problem is application related Although we pride ourselves on handling 95 of application related questions over the phone we maintain constant contact with our Integrated Systems Division and Engineering Division for additional assistance Introductory Training Training is an important part of the Sutron Customer Service philosophy The Sutron training policy is simpl...

Страница 78: ...hall pay transportation for the return of the repaired equipment to the customer when the validity of the damage claim has been established Otherwise Sutron will prepay shipment and bill the customer All shipments shall be accomplished by best way surface freight Sutron shall in no event assume any responsibility for repairs or alterations made other than by Sutron Any products repaired or replace...

Страница 79: ...ons 46 Navigating the Menus 46 Turning On Off 46 View Measurment Details 47 GPS 64 Installation and Setup 64 Local Time Offset 64 65 Positioning the Antenna 65 Hardware Error 47 Hardware Flow Ctrl 29 Installation 57 Jumper Power Options 66 Local Time Offset 64 65 Log 39 Download 40 51 Events 39 Format 39 SD Card 41 Timestamp 40 Measurement 0 5V 19 4 20mA 22 Active 10 Analog 18 Anemometer 23 Averag...

Страница 80: ...tic Log Backup 41 Log Download 41 Setup 41 SDI 12 Address 62 Commands 63 Connector 5 Minimizing Errors 63 Overview 61 Sensor Setup 62 Wiring Guidelines 62 www sdi 12 org 62 Sensor Example Bridge 32 Pressure Transducer 32 RM Young 30 Solar Radiation 36 Thermistor 31 Thermocouple 34 Tipping Bucket 35 Setup Capturing 57 Saving 57 SD Card 41 Wizard 50 Setup 50 Software Upgrade 56 Station Name 27 SW D ...

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