METER BARO Module
BARO INTEGRATOR GUIDE
SENSOR DESCRIPTION
Iyo BARO Module ndiyo chaiyo barometer yekutsiva matric angangoita kuyerwa kweTEROS 31 neTEROS 32 tensiometers. Iyo BARO Module inogona kushandiswa seyakamira sensor kubhadharira imwe kana anopfuura tensiometer panzvimbo yekuyeresa, kana sedhijitari/analog inoshandura kubhadhara yakabatana TEROS 31 kana TEROS 32 kukosha uye kushandura SDI-12 chiratidzo kuita analog vol.tage yakabuda (chete 8-pini shanduro). Iyo BARO Module uye TEROS 32 musanganiswa unogona kushandiswa seT8 tensiometer kutsiva. Kuti uwane tsananguro yakadzama yekuti sensor iyi inoita zviyero sei, tarisa iyo BARO Module Mushandisi Manual.
APPLICATIONS
- Barometric pressure measurement
- Barometric compensation of matric potential measurements
- Digital/analog converter for directly connected TEROS 31 and TEROS 32 tensiometers
- Appropriate for non-METER data loggers to connect TEROS 31 and TEROS 32
ADVANTAGES
- Digital sensor inotaurira zviyero zvakawanda pamusoro peiyo serial interface
- Low-input voltage zvinodiwa
- Yakaderera-simba dhizaini inotsigira bhatiri-inofambiswa nevanotema data
- SDI-12, Modbus RTU or tensio LINK serial communications protocol supported
- Analog output supported (only 8-pin version)
KUTAURA
| CHIYERO ZVINOTAURWA | |
| Barometric Pressure | |
| Range | + 65 kPa kusvika +105 kPa |
| Resolution | ± 0.0012 kPa |
| Kururama | ± 0.05kPa |
| Tembiricha | |
| Range | -30 kusvika +60 °C |
| Resolution | ± 0.01 °C |
| Kururama | ± 0.5 °C |
| ZVOKUTAURIRANA | |
| Output | |
| Analog Output (8-pin connector only)0 to 2,000 mV (default)0 to 1,000 mV (configurable with tensio VIEW) | |
| Digital OutputSDI-12 communications protocol tensio LINK communication protocol Modbus RTU communication protocol | |
| Data Logger Kuenderana | |
| Analog Output Chero dhata yekutora system inokwanisa kushandura 3.6- kusvika 28-VDC mafaro uye imwechete-inopera kana musiyano vol.tagkuyerwa kwe e pakupfuura kana kuenzana ne12-bit resolution. | |
| Digital Output Chero data acquisition system inokwanisa 3.6- kusvika 28-VDC excitation uye RS-485 Modbus kana SDI-12 kutaurirana. | |
| ZVINOTAURWA NEPAMUVIRI | |
| Dimensions | |
| Urefu | 80 mm (3.15 mukati) |
| Upamhi | 29 mm (1.14 mukati) |
| Urefu | 30 mm (1.18 mukati) |
| Cable Length | |
| 1.5 m (standard)NOTE: Contact Customer Support if a nonstandard cable length is needed. | |
| Connector Types | |
| 4-pin and 8-pin M12 plug connector or stripped and tinned wires | |
| KUTEVERA | |
| EM ISO/IEC 17050:2010 (CE Mako) | |
EQUIVALENT CIRCUIT UYE MATYPES EKUBANGANYA
Refer to Figure 2 to connect the BARO Module to a data logger. Figure 2 provides a low-impedance variant of the recommended SDI-12 specification.
BARO MODULE INTEGRATOR GUIDE 
ZVEKUNGWARIRIRA
METTER sensors dzakavakwa kune akakwira zviyero, asi kushandisa zvisizvo, kuchengetedzwa kwakashata, kana kuisirwa zvisina kunaka kunogona kukuvadza sensor uye pamwe kubvisa waranti. Usati wabatanidza masensa mune network ye sensor, tevera yakakurudzirwa yekumisikidza mirairo uye isa chengetedzo kuchengetedza sensor kubva mukukanganisa kukanganisa.
SENSOR COMMUNICATIONS
METER digital sensors feature a serial interface with shared receive and transmit signals for communicating sensor measurements on the data wire. The sensor supports SDI-12, tensio LINK, and Modbus over RS-485 two-wire. The sensor automatically detects the interface and protocol which is being used. Each protocol has implementation advantages uye matambudziko. Ndokumbira ubate METER Mutengi Tsigiro kana sarudzo yeprotocol yechishandiso chaunoda isiri pachena.
- SDI-12 NHUNGAMIDZO
SDI-12 ndeye mwero-yakavakirwa-protocol yekupindirana masensa kune vanotema data uye michina yekutora data. Multiple sensors ane akasiyana kero anogona kugovera yakajairika 3-waya bhazi (simba, pasi, uye data). Kukurukurirana-nzira mbiri pakati pe sensor uye logger kunogoneka nekugovana dhata yedhata yekutumira uye kugamuchira sekutsanangurwa kwazvinoitwa. Sensor zviyero zvinokonzereswa neprotocol command. Iyo SDI-12 protocol inoda yakasarudzika alphanumeric sensor kero ye sensor yega yega mubhazi kuitira kuti data logger itumire mirairo kune uye kugamuchira kuverenga kubva kune chaiyo sensors.
Dhawunirodha iyo SDI-12 Specification v1.3 kuti udzidze zvakawanda nezve SDI-12 protocol. - RS-485 NHUNGAMIDZO
RS-485 yakasimba yekubatanidza bhazi yekubatanidza michina yakawanda kune rimwe bhazi. Inokwanisa kushandisa kureba kwetambo kureba pasi penzvimbo dzakaoma. Panzvimbo yeSDI-12, RS-485 inoshandisa waya mbiri dzakatsaurwa yechiratidzo chedata. Izvi zvinobvumira kushandiswa kwetambo dzakareba uye zvakanyanya kusava nehanya nekuvhiringidza kubva kune dzimwe nzvimbo, sezvo chiratidzo chacho chine chokuita newaya dzakasiyana, uye magetsi ekupa haakonzeri chiratidzo che data. Ona Wikipedia kuti uwane rumwe ruzivo paRS-485. - TENSIOLINK RS-485 NHUNGAMIDZO
tensioLINK inokurumidza, inovimbika, ine proprietary serial communications protocol inotaurirana pamusoro peRS-485 interface. Iyi protocol inoshandiswa kuverenga data uye kugadzirisa maficha emudziyo. METER inopa tensioLINK PC USB converter uye software yekutaurirana zvakananga ne sensor, kuverenga data, uye kugadzirisa firmware. Ndokumbira ubate Rutsigiro rweVatengi kuti uwane rumwe ruzivo nezve tensioLINK. - MODBUS RTU RS-485 NHUNGAMIDZO
Modbus RTU yakajairika serial yekutaurirana protocol inoshandiswa neProgrammable Logic Controllers (PLCs) kana vanotema data kutaurirana nemhando dzese dzedhijitari. Iko kutaurirana kunoshanda pamusoro peiyo yenyama RS-485 yekubatanidza. Iko kusanganiswa kweRS-485 yekubatana kwemuviri uye Modbus se serial communications protocol inobvumira kukurumidza uye yakavimbika kuendesa data kune yakakwira nhamba ye sensors yakabatana kune imwe serial bhazi waya. Shandisa zvinongedzo zvinotevera kuti uwane rumwe ruzivo rweModbus: Wikipedia uye modbus.org. - KUPINDA SENSOR KUTI COMPUTER
The serial signals and protocols supported by the sensor require some type of interface hardware to be compatible with the serial port found on most computers (or USB-to-serial adapters). There are several
SDI-12 interface adapters available in the marketplace; however, METER has not tested any of these interfaces and cannot make a recommendation as to which adapters work with METER sensors. METER data loggers and the ZSC handheld device can operate as a computer-to-sensor interface for making on-demand sensor measurements.
Iyo BARO Module inogona zvakare kugadziridzwa uye kuyerwa kuburikidza netensioLINK uchishandisa METER software tensioVIEW, inowanikwa kudhaunirodha pa meter.ly/software. Kuti ubatanidze BARO Module kune komputa tensioLINK USB inoshandura uye yakakodzera adapta tambo inodiwa. - METER SDI-12 KUITA
Kana BARO Module yakabatana pakati peTEROS 31 kana 32 tensiometer, zvese zviri zviviri barometric air pressure uye asolute pressure yeTEROS tensiometer inogona kuverengwa kuburikidza neModbus. Iyo yakabhadharwa matrix inogona kuverengerwa kunze kuburikidza neModbus zvakare.
METER sensors use a low-impedance variant of the SDI-12 standard sensor circuit (Figure 2). During the power-up time, sensors output some sensor diagnostic information and should not be communicated with until the power-up time has passed. After the power up time, the sensors are fully compatible with all commands listed in the SDI-12 Specification v1.3 except for the continuous measurement commands ( aR0 – aR9 and aRC0 – aRC9 ). M , R , and C command implementations are found on pages 8–9. Out of the factory, all METER sensors start with SDI-12 address 0 . - SENSOR BUS CONSIDERATIONS
SDI-12 sensor buses require regular checking, sensor upkeep, and sensor troubleshooting. If one sensor goes down, that may take down the whole bus even if the remaining sensors are functioning normally. Power cycling the SDI-12 bus when a sensor is failing is acceptable. METER SDI-12 sensors can be power-cycled and read on the desired measurement interval or powered continuously and commands sent when a measurement is desired based on specified communication timing. Many factors influence the effectiveness of the bus configuration. Visit metergroup.com zvezvinyorwa uye masemina chaiwo ane rumwe ruzivo.
SDI-12 CONFIGURATION
Tafura 1 inonyora iyo SDI-12 yekutaurirana kumisikidzwa.
| Tafura 1 SDI-12 kutaurirana kugadzirisa | |
| Baud Rate | 1,200 |
| Tanga Bits | 1 |
| Data Bits | 7 (LSB yekutanga) |
| Parity Bits | 1 (kunyange) |
| Stop Bits | 1 |
| Logic | Inverted (inoshanda yakaderera) |
SDI-12 NGUVA
All SDI-12 commands and responses must adhere to the format in Figure 9 on the data line. Both the command and response are preceded by an address and terminated by a carriage return and line feed combination ( <CR><LF> ) and follow the timing shown in Figure 10.
COMMON SDI-12 MIRAIRO
Ichi chikamu chinosanganisira matafura ezvakajairika SDI-12 mirairo iyo inowanzoshandiswa muSDI-12 system uye mhinduro dzinoenderana kubva kuMETER sensors.
IDENTIFICATION COMMAND ( aI! )
Iyo Identification command inogona kushandiswa kuwana akasiyana eruzivo rwakadzama nezve yakabatana sensor. An example yemurairo nemhinduro inoratidzwa muna Eksample 1, apo murairo uri mutema uye mhinduro inotevera murairo.
Example 1 1I!113METER␣ ␣ ␣BARO␣
|
Parameter |
Fixed Character Urefu | Tsanangudzo |
| 1I! | 3 | Data logger command.Request to the sensor for information from sensor address 1 . |
| 1 | 1 | Sensor address.Prepended on all responses, this indicates which sensor on the bus is returning the following information. |
| 13 | 2 | Inoratidza kuti iyo inotarisa sensor inotsigira SDI-12 Specification v1.3. |
| METER ␣ ␣ ␣ | 8 | Vendor identification string.( METER and three spaces ␣ ␣ ␣ for all METER sensors) |
| BARO␣ | 6 | Sensor model string.This string is specific to the sensor type. For the BARO, the string is BARO . |
| 100 | 3 | Sensor version.This number divided by 100 is the METER sensor version (e.g., 100 is version 1.00). |
| BARO-00001 | ≤13,variable | Sensor serial nhamba. Iyi inzvimbo yehurefu hwakasiyana. Inogona kusiiwa kune ma sensors ekare. |
CHINJA ADDRESS COMMAND ( aAB! )
The Change Address command is used to change the sensor address to a new address. All other commands support the wildcard character as the target sensor address except for this command. All METER sensors have a default address of 0 (zero) out of the factory. Supported addresses are alphanumeric (i.e., A – Z , and 0 – 9 ). An example kubuda kubva kuMETER sensor inoratidzwa muExample 2, apo murairo uri mutema uye mhinduro inotevera murairo.
Exampne 2 1A0!0
|
Parameter |
Fixed Character Urefu | Tsanangudzo |
| 1a0! | 4 | Data logger command. Request to the sensor to change its address from 1 to a new address of 0 . |
| 0 | 1 | Kero itsva ye sensor. Kune ese anotevera mirairo, iyi kero nyowani ichashandiswa neinotariswa sensor. |
MURAIRO KUITA
Matafura anotevera anonyora Kuyera kwakakodzera ( M ), Inoenderera ( R ), uye Concurrent ( C ) mirairo uye inotevera Data ( D ) mirairo, pazvinenge zvakakodzera.
CHIYERO CHINOMIRA KUITA
Measurement ( M ) commands are sent to a single sensor on the SDI-12 bus and require that subsequent Data ( D ) commands are sent to that sensor to retrieve the sensor output data before initiating communication with another sensor on the bus. Please refer to Table 2 and for an explanation of the command sequence and to Table 5 for an explanation of response parameters.
Tafura 2 am! kuraira kutevedzana
| Command | Mhinduro |
| Murairo uyu unoshuma avhareji, yakaunganidzwa, kana huwandu hwehuwandu. | |
| ndiri! | atttn |
| aD0! | a± ± + |
| Comments | When a slave TEROS tensiometer is connected, <Press> hold the barometric compensated tensiometer output. If the BARO module is used in standalone <Press> returns the current barometric pressure. |
| NOTE: The measurement and corresponding data commands are intended to be used back to back. After a measurement command is processed by the sensor, a service request a <CR><LF> is sent from the sensor signaling the measurement is ready. Either wait until seconds have passed or wait until the service request is received before sending the data commands. See the SDI-12 Specifications v1.3 | |
CHERECHEDZA: Iyo kuyerwa uye inoenderana data mirairo inoitirwa kushandiswa kumashure kumashure. Mushure mekuraira kwekuyera kunoitwa ne sensor, chikumbiro chebasa a inotumirwa kubva kune sensor inoratidza kuyerwa kwagadzirira. Kungomirira kusvika ttt masekondi apfuura kana kumirira kusvika chikumbiro chesevhisi chagamuchirwa usati watumira mirairo yedata. Ona iyo SDI-12 Specifications v1.3 gwaro kuti uwane rumwe ruzivo.
CHIYERO CHAKASIYANA CHINOMIRA KUITA
Concurrent Measurement ( C ) mirairo inowanzo shandiswa nemasensor akabatana nebhazi. C inoraira yeiyi sensor inotsauka kubva kune yakajairwa C yekuraira kuita. Kutanga, tumira iyo C murairo, mirira iyo yakatarwa nguva yenguva yakatsanangurwa muC command mhinduro, wobva washandisa D mirairo kuverenga mhinduro yayo usati wataurirana neimwe sensor.
Please refer to Table 3 for an explanation of the command sequence and to Table 5 for an explanation of response parameters.
| Table 3 aC! measurement command sequence | |
| Command | Mhinduro |
| Uyu murairo unoshuma maitiro epakarepo. | |
| aC! | atttnn |
| aD0! | a± ± + |
| NOTE: The measurement and corresponding data commands are intended to be used back to back. After a measurement commanc is pro- cessed by the sensor, a service request a<CR><LF> is sent from the sensor signaling the measurement is ready. Either wait until ttt sec- onds have passed or wait until the service request is received before sending the data commands. Please see the SDI-12 Specifications v1.3 document for more information. | |
NOTE: The measurement and corresponding data commands are intended to be used back to back. After a measurement commanc is pro-cessed by the sensor, a service request a<CR><LF> is sent from the sensor signaling the measurement is ready. Either wait until ttt sec-onds have passed or wait until the service request is received before sending the data commands. Please see the SDI-12 Specifications v1.3 document for more information.
CHIYERO RINOENDERERA CHINOMIRA KUITA
Continuous Measurement ( R ) commands trigger a sensor measurement and return the data automatically after the readings are completed without needing to send a D command. aR0! returns more characters in its response than the 75-character limitation called out in the SDI-12 Specification v1.3. It is recommended to use a buffer that can store at least 116 characters.
Please refer to Table 4 for an explanation of the command sequence and see Table 5 for an explanation of response parameters.
| Table 4 aR0! measurement command sequence | |
| Command | Mhinduro |
| Murairo uyu unoshuma avhareji, yakaunganidzwa, kana huwandu hwehuwandu. | |
| aR0! | a± ± + |
| CHERECHEDZA: Uyu murairo hautevedzere iyo SDI-12 mhinduro nguva. Ona METER SDI-12 Implementation kuti uwane rumwe ruzivo. | |
NOTE: This command does not adhere to the SDI-12 response timing. See METER SDI-12 Implementation for more information.
PARAMETERS
Table 5 lists the parameters, unit measurement, and a description of the parameters returned in command responses for the BARO Module.
| Tafura 5 Parameter Tsanangudzo | ||
| Parameter | Unit | Tsanangudzo |
| ± | - | Chiratidzo chakanaka kana chakaipa chinoratidza chiratidzo cheukoshi hunotevera |
| a | - | SDI-12 kero |
| n | - | Nhamba yezviyero (yakagadziriswa upamhi hwe1) |
| nn | - | Nhamba yezviyero zvine zero inotungamira kana zvichidikanwa (yakagadziriswa upamhi hwe2) |
| ttt | s | Yakakura nguva kuyerwa kuchatora (yakagadziriswa upamhi hwe3) |
| - | Tab character | |
| - | Carriage return character | |
| - | Line feed character | |
| - | ASCII character denoting the sensor type For BARO Module, the character is ; | |
| - | METTER serial checksum | |
| - | METER 6-bit CRC |
METER MODBUS RTU SERIAL IMPLEMENTATION
Modbus over Serial Line is specified in two versions – ASCII and RTU. BARO Modules communicate using RTU mode exclusively. The following explanation is always related to RTU. Table 6 lists the Modbus RTU communication and configuration.
| Tafura 6 Modbus communication characters | |
| Baud Mutengo (bps) | 9,600 bps |
| Tanga Bits | 1 |
| Data Bits | 8 (LSB yekutanga) |
| Parity Bits | 0 (hapana) |
| Stop Bits | 1 |
| Logic | Standard (inoshanda yakakwirira) |
Figure 11 shows a message in RTU format. The size of the data determines the length of the message. The format of each byte in the message has 10 bits, including Start and Stop Bit. Each byte is sent from left to right: Least Significant Bit (LSB) to Most Significant Bit (MBS). If no parity is implemented, an additional stop bit is transmitted to fill out the character frame to a full 11-bit asynchronous character.
The Modbus application layer implements a set of standard Function codes divided into three categories: Public, User-defined, and Reserved. Well-defined public function codes for BARO Modules are documented in the Modbus Organization, Inc. (modbus.org) community.
For a reliable interaction between the BARO Module and a Modbus Master, a minimum 50ms delay is required between every Modbus command sent on the RS-485 bus. An additional timeout is needed for every Modbus query; this timeout is device-specific and depends on the quantity of the polled registers. Generally, 100ms will work fine for most of the BARO Module.
INOTSIGWA MABASA MODBUS
Table 7 Function Definitions
| Function Code | Chiito | Tsanangudzo |
| 01 | Verenga mamiriro ecoil/port | Inoverenga iyo yekubatidza / kudzima mamiriro e discrete kuburitsa (s) muModBusSlave |
| 02 | Verenga mamiriro ekuisa | Inoverenga iyo yekubatidza / yekudzima mamiriro e discrete ekuisa (s) muModBusSlave |
| 03 | Verengai mabhuku ekubata | Inoverenga zviri mukati mebhinari yekubata rejista (s) muModBusSlave |
| 04 | Verenga mabhuku ekuisa | Inoverenga zvirimo mumabhinari erejista (s) muModBusSlave |
| 05 | Kumanikidza koiri imwe/chiteshi | Inomanikidza coil imwe chete / chiteshi muModBusSlave kuti ibatike kana kudzima |
| 06 | Nyora rejista imwe chete | Inonyora kukosha murejista yekubata muModBusSlave |
| 15 | Force multiple coils/ports | Forces multiple coils/ports in the ModBusSlave to either on or off |
| 16 | Nyora mazita akawanda | Writes values into a series of holding registers in the ModBusSlave |
DATA REPRESENTATION UYE REGISTER TABLES
Data values (setpoint values, parameters, sensor-specific measurement values, etc.) sent to and from the BARO Module use 16-bit and 32-bit holding (or input) registers with a 4-digit address notation. The address spaces are virtually distributed in different blocks for each data type. This is an approach to the Modbus Enron implementation. Table 8 shows the four main tables used by the BARO Module with their respective access rights. Table 9 describes the sub-blocks for each different data type representation.
Ndokumbira utarise kuti mamwe maModbus anorodha data anoshandisa kero ne +1 offset. Izvi dzimwe nguva zvinokonzeresa nyonganiso uye zvinobva pane Modbus yakatarwa void. Kana paine matambudziko mukuita yako Modbus chirongwa pane datalogger gara uchiedza kuyedza akasiyana rejista offset uye data mhando. Kushandisa kukosha kunozivikanwa, sekushisa, uko kunozivikanwa kukosha kwekutarisira itsika yakanaka yekutanga kuyedza.
| Table 8 Modbus Primary Tables | |||
| Register Number | Tafura Type | Access | Tsanangudzo |
| 1xxx | Discrete Output Coils | Verenga/Nyora | on/off status or setup flags for the sensor |
| 2xxx | Discrete Input Contacts | Verenga | sensor mamiriro mireza |
| 3xxx | Analog Input Registers | Verenga | nhamba yekupinda inosiyana kubva kune sensor (chaiyo sensor zviyero) |
| 4xxx | Analog Output Holding Registers | Verenga/Nyora | manhamba anobuda akasiyana eiyo sensor (parameter, setpoint values, calibrations etc.) |
For example, register 3001 ndiyo yekutanga analog yekuisa rejista (yekutanga data kero yemarejista ekuisa). Nhamba yenhamba yakachengetwa pano ingave 16-bit isina kusaina integer-mhando yakasiyana inomiririra yekutanga sensor yekuyera parameter (kumanikidza kukosha). Iyo imwechete yekuyera parameter (kudzvanywa kukosha) inogona kuverengerwa kurejista 3201, asi panguva ino se32-bit inoyangarara-point kukosha ine Big-Endian fomati. Kana iyo Modbus Master (Datalogger kana PLC) ichitsigira chete 32-bit float-values neChidiki-Endian format, ipapo munhu anogona kuverenga imwechete yekuyera parameter (same pressure value) pakunyoresa 3301. Iyo Virtual Sub-Blocks inoitirwa kurerutsa kuedza kwemushandisi mukuronga iyo Modbus mubvunzo we sensors.
| Tafura 9 Modbus Virtual Sub-Blocks | |||
| Register Number | Access | Size | Sub-Table Data Type |
| X001-X099 | Verenga/Nyora | 16 zvishoma | nhamba yakasaina |
| X101-X199 | Verenga/Nyora | 16 zvishoma | nhamba isina kusaina |
| X201-X299 | Verenga/Nyora | 32 zvishoma | float Big-Endian format |
| X301-X399 | Verenga/Nyora | 32 zvishoma | float Little-Endian format |
REGISTER MAPPING
| Tafura 10 Holding Registers | |
| 41000 (41001*) | Modbus Muranda Kero |
| Tsanangudzo Yakadzama | Read or update the sensor’s modbus address |
| Data Type | Nhamba yese isina kusaina |
| Yakabvumidzwa Range | 1-247 |
| Unit | - |
| Comments | Yakagadziridzwa kero yevaranda ichachengetwa mune iyo sensor's nonvolatile memory |
| Tafura 11 BARO Module Input Registers | |
| 32000 (32001*) | Soil Water Potential |
| Tsanangudzo Yakadzama | Compensated tension value from tensiometer |
| Data Type | 32 bit floating Big-Endian |
| Yakabvumidzwa Range | -200 kusvika +200 |
| Unit | kPa |
| Comments | Tensiometer needs to be connected as slave |
| 32001 (32002*) | Kupisa kwevhu |
| Tsanangudzo Yakadzama | High accuracy on board temperature measurement |
| Data Type | 32 bit floating Big-Endian |
| Yakabvumidzwa Range | -30 kusvika +60 |
| Unit | degC |
| Comments | Tensiometer needs to be connected as slave |
| 32002 (32003*) | Sensor Supply Voltage |
| Tsanangudzo Yakadzama | On board supply voltagchiyero |
| Data Type | 32 bit floating Big-Endian |
| Yakabvumidzwa Range | -10 kusvika +60 |
| Unit | Volts |
| Comments | - |
| 32003 (32004*) | BARO Status |
| Tsanangudzo Yakadzama | Binary status |
| Data Type | 32 bit floating Big-Endian |
| Yakabvumidzwa Range | 0/1 |
| Unit | - |
| Comments | - |
| 32004 (32005*) | BARO Reference Pressure |
| Tsanangudzo Yakadzama | On board high accuracy barometric pressure measurement |
| Data Type | 32 bit floating Big-Endian |
| Yakabvumidzwa Range | +70 kusvika +120 |
| Unit | kPa |
| Comments | - |
| Tafura 11 Baro Module Input Registers (inoenderera) | |
| 32005 (32006*) | Tensiometer Pressure |
| Tsanangudzo Yakadzama | Absolute pressure value from tensiometer |
| Data Type | 32 bit floating Big-Endian |
| Yakabvumidzwa Range | -200 kusvika +200 |
| Unit | kPa |
| Comments | Tensiometer needs to be connected as slave |
| 32006 (32007*) | BARO Tembiricha |
| Tsanangudzo Yakadzama | On board temperature measurement |
| Data Type | 32 bit floating Big-Endian |
| Yakabvumidzwa Range | -30 kusvika +60 |
| Unit | degC |
| Comments | - |
* Mimwe michina inoshuma Modbus rejista kero ine offset ye +1. Izvi ndezvechokwadi kune Campbhero Scientific Loggers uye Dataker loggers. Kuti uverenge rejista yaunoda shandisa nhamba iri mubharangi.
EXAMPLE KUSHANDISA CR6 DATALOGGER uye MODBUS RTU
Iye Campbell Scientific, Inc. CR6 Measurement and Control Datalogger supports Modbus master and Modbus slave communication to integrate Modbus SCADA networks. The Modbus communications protocol facilitates the exchange of information and data between a computer/HMI software, instruments (RTUs), and Modbus-compatible sensors. The CR6 datalogger communicates exclusively in RTU mode. In a Modbus network, each slave device has a unique address. Therefore, sensor devices must be configured correctly before connecting to a Modbus Network. Addresses range from 1 to 247. Address 0 is reserved for universal broadcasts.
KUGADZIRA A CR6 DATALOGGER
Zvirongwa zvinomhanya paCR6 (uye CR1000) Loggers zvakanyorwa muCRBasic, mutauro wakagadzirwa naC.ampbhero Scientific. Mutauro wepamusoro-soro wakagadzirwa kuti upe nzira iri nyore asi yakanyanya kuchinjika uye ine simba yekuraira iyo data logger kuti uye riini kutora zviyero, kugadzirisa data, uye kutaurirana. Zvirongwa zvinogona kugadzirwa uchishandisa iyo ShortCut Software kana kupepetwa uchishandisa iyo CRBasic Mharidzo, ese ari maviri anowanikwa kurodha pasi seakamira-oga maapplication pane yepamutemo C.ampbhero Scientific websaiti (www.campbellsci.com). ShortCut Software (https://www.campbellsci.com/shortcut) CRBasic Editor (https://www.campbellsci.com/crbasiceditor)
A typical CRBasic program for a Modbus application consists of the following:
- Variables and constants declarations (public or private)
- Units declarations
- Mamiriro ekugadzirisa
- Data tables declarations
- Logger Initializations
- Scan (Main Loop) with all the sensors to be quired
- Function call to the Data Tables
CR6 LOGGER RS-485 CONNECTION INTERFACE
Iyo yepasirese (U) terminal yeCR6 inopa gumi nemaviri Zviteshi zvinobatanidza kunenge chero rudzi rwe sensor. Inopa iyo CR6 kugona kufananidza mamwe maapplication uye inobvisa kushandiswa kweakawanda ekunze peripherals.
Iyo Modbus CR6 yekubatanidza inoratidzwa muFigure 12 inoshandisa RS-485 (A/B) interface yakaiswa pamaterminals (C1-C2) uye (C3-C4). Aya mainterface anogona kushanda muHalf-Duplex uye Yakazara-Duplex. Iyo serial interface yeBARO Module inoshandiswa kune iyi example yakabatana ne (C1-C2) zviteshi.
BARO Module kune CR6 Datalogger Wiring Dhiyagiramu
After assigning the BARO Module a unique Modbus Slave Address, it can be wired to the CR6 logger according to Figure 12. Make sure to connect the white and black wires according to their signals, respectively, to the C1 and C2 ports—the brown wire to 12V (V+) and the blue to G (GND). To control the power supply through your program, connect the brown wire directly to one of the SW12 terminals (switched 12V outputs).
EXAMPLE PROGRAMS
RUTSIGIRO rwevatengi
NORTH AMERICA
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- Email: support.environment@metergroup.com
- sales.environment@metergroup.com
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- Fax: +1.509.332.5158
- Websaiti: metergroup.com
EUROPE
- Customer service representatives are available for questions, problems, or feedback Monday through Friday,
- 8:00 to 17:00 Central European time.
- Email: support.europe@metergroup.com
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- Fax: + 49 89 12 66 52 20
- Websaiti: metergroup.com
Kana uchibata METER neemail, ndapota sanganisira zvinotevera ruzivo:
- Zita
- Kero
- Nhamba yenhare
- Chikero chetsamba yemumhepo
- Instrument serial nhamba
Tsanangudzo yedambudziko
CHERECHEDZA: Kune zvigadzirwa zvakatengwa kuburikidza nemugovera, tapota taura nemugovera zvakananga kuti ubatsirwe.
REVISION STORY
Tafura inotevera inoronga kudzokororwa kwegwaro.
| Kudzokorora | Date | Inoenderana Firmware | Tsanangudzo |
| 00 | 6.2025 | 1.10 | Kusunungurwa kwekutanga |
FAQ
What should I do if I need a nonstandard cable length?
Contact Customer Support for assistance with nonstandard cable lengths.
How do I know which communication protocol to use for my application?
Evaluate the advantages and challenges of each protocol based on your application needs. If unsure, contact METER Customer Support for guidance.
Zvinyorwa / Zvishandiso
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METER BARO Module [pdf] Bhuku reMushandisi TEROS 31, TEROS 32, BARO Module, BARO Module, Module |