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Constr.png Translation to Ukrainian
Name Version License Source Languages Author Description
Low level sensors and chips library 1.2 GPLv2 OscadaLibs.db (SQL, GZip) > DAQ.tmplb_LowDevLib en, uk, ru Roman Savochenko
  Arcadiy Kisel (2017)
Library of functions to provide access to device's data of low-level buses' chips.

The user protocol devices library created to provide access to device's data of low-level buses' chips, with simple enough to implement protocols into: the User Protocol module or directly on the internal like to Java language.

The template's names and their parameters are available in languages: English, Ukrainian and Russian. Their source code wrote in human language independent mode with calls for the translations by function tr() and the message's translation also allowed for English, Ukrainian and Russian.

For connection the library to a project of the OpenSCADA station you can obtain the database file as:

  • supplied with a ready and proper package of the Linux distribution like to "openscada-libdb-main", "openscada-LibDB.Main";
  • directly taken for most actual one from the subversion repository and converted to the DB SQLite file in the way:
$ wget http://oscada.org/svn/trunk/OpenSCADA/data/LibsDB/OscadaLibs.sql
$ sqlite3 -init OscadaLibs.sql OscadaLibs.db .exit

This obtained file next you can place into the project directory of the station and create the database object for the DB module "SQLite", registering the database file in the configuration.

For the DAQ templates at generic you need create the device representing object into module of Logical controller and select proper template from the templates library. Next, to correct configuration, follow to specific of the template into the individual description. The conception of accessing the data by a user protocol we can imagine like to Figure 1.

Fig.1. Conception of user accessing to services and device's data.

As you can see from Figure 1, interaction with devices carried out through some transport on which their physically based. Requests to the transport you can send:

  1. Directly by OpenSCADA system API function of the transport object string messIO( string mess, real timeOut = 0 );, if the protocol specific part is very simple and you need only the data extract.
  2. Wrapped data request req by function int messIO( XMLNodeObj req, string prt ); and for protocol prt, if the protocol part is complex enough and already presented into OpenSCADA.
  3. Wrapped data request specific for user by function int messIO( XMLNodeObj req, "UserProtocol" ); and the user protocol implementation, if the protocol part is complex enough and not yet present into OpenSCADA. The user implements here itself of the protocol specific part into the module UserProtocol and the data specific part into the template for the Logical Level module or directly into controller's procedure on the internal language of the module JavaLikeCalc.
At.png This latter method is currently developed to the possibility of forming a protocol code part directly in the same code of the template as a separate built-in function with call the requesting function of the first method, if there is no need for reuse, or even if such a need exists and it makes sense to create a complex template that can combine the role of the output protocol, through its connection to the user protocol module. And it will be completely stored in a single template library.

For a protocol placing here you need to do and to follow for the shown demands:

  • be the copyright holder or the author of the code and distribute its under any free license, GPL preferred;
  • prepare and store into a separated DB file of SQLite or as a text file for: the parameters (IO) description, the procedure's code wrote and formed in some system way;
  • write a short description and instruction for connect a device by the protocol in way like to the other ones here;
  • write a direct request to the forum topic "OpenSCADA development" for placing the protocol here, include a proving of its ability to work from any OpenSCADA developer or a short demonstration video.


1 One Wire by {DS9097,DS9097U} (1W_{DS9097,DS9097U})

1.1, 1.1 GPLv2 * en Roman Savochenko

One Wire sensors bus implementing by 1Wire-adapter {DS9097,DS9097U}. Supported direct and parasite powering for the temperature sensors.
Supported 1Wire-devices: DS1820, DS1820/DS18S20/DS1920 (not tested), DS1822 (not tested), DS2413, DS2408, DS2450, DS2438.
Ds9097.png

Template IOs

Identifier Parameter Type Mode Attribute Configuration Value
transport Transport of the One Wire bus, Serial String Input Not attribute Constant oneWire
tmResc Rescan period, s Real Input Not attribute Constant 60
power Power, for temperature Boolean Input Read only Variable
this Object Object Input Not attribute Variable
f_frq Function calculate frequency (Hz) Real Input Not attribute Variable 1000
f_start Function start flag Boolean Input Not attribute Variable 0
f_stop Function stop flag Boolean Input Not attribute Variable 0
f_err Function error String Input Not attribute Variable 0

Configuring and using

1. Create an output transport of the type "Serial" and set its Identifier like to "oneWire", one for each the One Wire bus.
2. Set proper address of the Serial device, only for the adapter's serial device like "/dev/ttyS{N}". The serial port speed, asynchronous data format and timeouts will adjust by the template.
3. Create and start a logical controller object or use any presented one with the needed scheduling properties.
4. Create a logical parameter object and select the template for that, one for each the devices. Enable the parameter.
5. Into the tab "Template configuration" of the logical parameter object you need to set:
  • Transport of the One Wire bus, Serial — to the address of the transport into step 1. Tracing for the address changing is supported.
  • Rescan period, s — periodicity of rescaning for new and removed devices search.
6. Result: The logical parameter object will perform at first searching to 1Wire devices on the bus and create included parameters to the each found one. Next the logical parameter object will perform gather data of the found devices and trace to modify of the writable device's properties.


2 I2C: PCF8591 (PCF8591)

1.0 GPLv2 * en Roman Savochenko

I2C 8-bit 4xA/D and D/A converter. Connects through a Serial output transport into the I2C mode.

Template IOs

Identifier Parameter Type Mode Attribute Configuration Value
transport Transport of the I2C, Serial String Input Not attribute Constant i2c
addr Device address [0...119] Integer Input Not attribute Constant 72
vRef Reference voltage, V Real Input Not attribute Constant 3.2
ai0 AI0 Real Input Read only Variable
ai1 AI1 Real Input Read only Variable
ai2 AI2 Real Input Read only Variable
ai3 AI3 Real Input Read only Variable
ao AO Real Input Full access Variable
f_frq Function calculate frequency (Hz) Real Input Not attribute Variable 1000
f_start Function start flag Boolean Input Not attribute Variable 0
f_stop Function stop flag Boolean Input Not attribute Variable 0
f_err Function error String Input Not attribute Variable 0

Configuring and using

1. Create an output transport of the type "Serial" and set its Identifier like to "i2c", one for each the I2C bus.
2. Set proper address of the Serial device, only the I2C bus address like "/dev/i2c-{N}". Set the symbol's time into the timeouts field to the minimum value.
3. Create and start a logical controller object or use any presented one with the needed scheduling properties.
4. Create a logical parameter object and select the template for that, one for each I2C slave devices. Enable the parameter.
5. Into the tab "Template configuration" of the logical parameter object you need to set:
  • transport — to the address of the transport into step 1. Tracing for the address changing is supported.
  • addr — the I2C slave device's address [0...119].
  • vRef — reference voltage of the AIs and AO.
6. Result: The logical parameter object will perform interaction and placing of gathered data to the AI attributes and also will take the AO and write to the chip.


3 I2C: PCF8574 (PCF8574)

1.0 GPLv2 * en Roman Savochenko

I2C 8-bit 8DIO. Connects through a Serial output transport into the I2C mode.

Template IOs

Identifier Parameter Type Mode Attribute Configuration Value
transport Transport I2C String Input Not attribute Constant i2c
addr Device address (0, 119) Integer Input Not attribute Constant 39
di0 DI0 Boolean Input Read only Variable
di1 DI1 Boolean Input Read only Variable
di2 DI2 Boolean Input Read only Variable
di3 DI3 Boolean Input Read only Variable
di4 DI4 Boolean Input Read only Variable
di5 DI5 Boolean Input Read only Variable
di6 DI6 Boolean Input Read only Variable
di7 DI7 Boolean Input Read only Variable
do0 DO0 Boolean Output Full access Variable
do1 DO1 Boolean Output Full access Variable
do2 DO2 Boolean Output Full access Variable
do3 DO3 Boolean Output Full access Variable
do4 DO4 Boolean Output Full access Variable
do5 DO5 Boolean Output Full access Variable
do6 DO6 Boolean Output Full access Variable
do7 DO7 Boolean Output Full access Variable
f_frq Function calculate frequency (Hz) Real Input Not attribute Variable 1000
f_start Function start flag Boolean Input Not attribute Variable 0
f_stop Function stop flag Boolean Input Not attribute Variable 0
f_err Function error String Input Not attribute Variable 0

Configuring and using

1. Create an output transport of the type "Serial" and set its Identifier like to "i2c", one for each the I2C bus.
2. Set proper address of the Serial device, only the I2C bus address like "/dev/i2c-{N}". Set the symbol's time into the timeouts field to the minimum value.
3. Create and start a logical controller object or use any presented one with the needed scheduling properties.
4. Create a logical parameter object and select the template for that, one for each I2C slave devices. Enable the parameter.
5. Into the tab "Template configuration" of the logical parameter object you need to set:
  • transport — to the address of the transport into step 1. Tracing for the address changing is supported.
  • addr — the I2C slave device's address [0...119].
6. Result: The logical parameter object will perform interaction and placing of gathered data to the DI attributes and also will take the DO and write to the chip.


4 I2C: ADS101x, ADS111x (ADS111x)

1.0 GPLv2 * en Roman Savochenko

I2C 12/16-bit 4xA/D converter. Connect through a Serial output transport into the I2C mode.

Template IOs

Identifier Parameter Type Mode Attribute Configuration Value
transport Transport of the I2C, Serial String Input Not attribute Constant i2c
addr Device address [0...119] Integer Input Not attribute Constant 72
range Range, ±V Integer numbers selection Input Full access Variable 2

0;1;2;3;4;5
6.144;4.096;2.048;1.024;0.512;0.256

ai0 AI0 Real Input Read only Variable
ai1 AI1 Real Input Read only Variable
ai2 AI2 Real Input Read only Variable
ai3 AI3 Real Input Read only Variable
f_frq Function calculate frequency (Hz) Real Input Not attribute Variable 1000
f_start Function start flag Boolean Input Not attribute Variable 0
f_stop Function stop flag Boolean Input Not attribute Variable 0
f_err Function error String Input Not attribute Variable 0

Configuring and using

1. Create an output transport of the type "Serial" and set its Identifier like to "i2c", one for each the I2C bus.
2. Set proper address of the Serial device, only the I2C bus address like "/dev/i2c-{N}". Set the symbol's time into the timeouts field to the minimum value.
3. Create and start a logical controller object or use any presented one with the needed scheduling properties.
4. Create a logical parameter object and select the template for that, one for each I2C slave devices. Enable the parameter.
5. Into the tab "Template configuration" of the logical parameter object you need to set:
  • transport — to the address of the transport into step 1. Tracing for the address changing is supported.
  • addr — the I2C slave device's address [0...119].
  • range — range of voltage of the AIs.
6. Result: The logical parameter object will perform interaction and placing of gathered data to the AI attributes.


5 I2C: MCP4725 (MCP4725)

1.0 GPLv2 * en Roman Savochenko

I2C 12-bit D/A converter. Connect through a Serial output transport into the I2C mode.

Template IOs

Identifier Parameter Type Mode Attribute Configuration Value
transport Transport of the I2C, Serial String Input Not attribute Constant i2c
addr Device address [0...119] Integer Input Not attribute Constant 96
vRef Reference voltage, V Real Input Not attribute Constant 3.2
ao AO Real Input Full access Variable
f_frq Function calculate frequency (Hz) Real Input Not attribute Variable 1000
f_start Function start flag Boolean Input Not attribute Variable 0
f_stop Function stop flag Boolean Input Not attribute Variable 0
f_err Function error String Input Not attribute Variable 0

Configuring and using

1. Create an output transport of the type "Serial" and set its Identifier like to "i2c", one for each the I2C bus.
2. Set proper address of the Serial device, only the I2C bus address like "/dev/i2c-{N}". Set the symbol's time into the timeouts field to the minimum value.
3. Create and start a logical controller object or use any presented one with the needed scheduling properties.
4. Create a logical parameter object and select the template for that, one for each I2C slave devices. Enable the parameter.
5. Into the tab "Template configuration" of the logical parameter object you need to set:
  • transport — to the address of the transport into step 1. Tracing for the address changing is supported.
  • addr — the I2C slave device's address [0...119].
  • vRef — reference voltage of the AO.
6. Result: The logical parameter object will perform interaction and take the AO and write to the chip.


6 I2C: BMP180 (BMP180)

1.0 GPLv2 * en Roman Savochenko

I2C Pressure and Temperature sensor. Connecting through a Serial output transport into the I2C mode.

Template IOs

Identifier Parameter Type Mode Attribute Configuration Value
transport Transport of the I2C, Serial String Input Not attribute Constant i2c
addr Device address [0...119] Integer Input Not attribute Constant 119
oss Oversampling setting (0...3) Integer Input Not attribute Constant 0
t T, °С Real Input Read only Variable
p P, Pa Real Input Read only Variable
f_frq Function calculate frequency (Hz) Real Input Not attribute Variable 1000
f_start Function start flag Boolean Input Not attribute Variable 0
f_stop Function stop flag Boolean Input Not attribute Variable 0
f_err Function error String Input Not attribute Variable 0

Configuring and using

1. Create an output transport of the type "Serial" and set its Identifier like to "i2c", one for each the I2C bus.
2. Set proper address of the Serial device, only the I2C bus address like "/dev/i2c-{N}". Set the symbol's time into the timeouts field to the minimum value.
3. Create and start a logical controller object or use any presented one with the needed scheduling properties.
4. Create a logical parameter object and select the template for that, one for each I2C slave devices. Enable the parameter.
5. Into the tab "Template configuration" of the logical parameter object you need to set:
  • transport — to the address of the transport into step 1. Tracing for the address changing is supported.
  • addr — the I2C slave device's address [0...119].
  • oss — oversampling setting of pressure measurement [0...3].
6. Result: The logical parameter object will perform interaction and placing of gathered data to the Pressure and Temperature attributes.


7 I2C: BME280 (BME280)

1.0 GPLv2 * en Arcadiy Kisel, Roman Savochenko

I2C Barometric Pressure, Temperature and Humidity sensor. Connect through a Serial output transport into the I2C mode.

Template IOs

Identifier Parameter Type Mode Attribute Configuration Value
transport Transport of the I2C, Serial String Input Not attribute Constant i2c
addr Device address [0...119] Integer Input Not attribute Constant 118
oss Oversampling setting (0...7) Integer Input Not attribute Constant 0
t T, °С Real Input Read only Variable
p P, Pa Real Input Read only Variable
h H, % Real Input Read only Variable
f_frq Function calculate frequency (Hz) Real Input Not attribute Variable 1000
f_start Function start flag Boolean Input Not attribute Variable 0
f_stop Function stop flag Boolean Input Not attribute Variable 0
f_err Function error String Input Not attribute Variable 0

Configuring and using

1. Create an output transport of the type "Serial" and set its Identifier like to "i2c", one for each the I2C bus.
2. Set proper address of the Serial device, only the I2C bus address like "/dev/i2c-{N}". Set the symbol's time into the timeouts field to the minimum value.
3. Create and start a logical controller object or use any presented one with the needed scheduling properties.
4. Create a logical parameter object and select the template for that, one for each I2C slave devices. Enable the parameter.
5. Into the tab "Template configuration" of the logical parameter object you need to set:
  • transport — to the address of the transport into step 1. Tracing for the address changing is supported.
  • addr — the I2C slave device's address [0...119].
  • oss — oversampling setting of pressure measurement [0...7].
6. Result: The logical parameter object will perform interaction and placing of gathered data to the Pressure, Temperature and Humidity attributes.


8 I2C: SHT3x (SHT3x)

1.0 GPLv2 * en Roman Savochenko

Digital Temperature and Humidity Sensor for the models: SHT30

Template IOs

Identifier Parameter Type Mode Attribute Configuration Value
transport Transport of the I2C, Serial String Input Not attribute Constant i2c
addr Device address [0...119] Integer Input Not attribute Constant 68
H Humidity Real Input Read only Variable
T Temperature Real Input Read only Variable
f_frq Function calculate frequency (Hz) Real Input Not attribute Variable 1000
f_start Function start flag Boolean Input Not attribute Variable 0
f_stop Function stop flag Boolean Input Not attribute Variable 0
f_err Function error String Input Not attribute Variable 0

Configuring and using

1. Create an output transport of the type "Serial" and set its Identifier like to "i2c", one for each the I2C bus.
2. Set proper address of the Serial device, only the I2C bus address like "/dev/i2c-{N}". Set the symbol's time into the timeouts field to the minimum value.
3. Create and start a logical controller object or use any presented one with the needed scheduling properties.
4. Create a logical parameter object and select the template for that, one for each I2C slave devices. Enable the parameter.
5. Into the tab "Template configuration" of the logical parameter object you need to set:
  • transport — to the address of the transport into step 1. Tracing for the address changing is supported;
  • addr — the I2C slave device's address [0...119].
6. Result: The logical parameter object will perform interaction and placing of gathered data to the Temperature and Humidity attributes.


9 I2C: DS1307,DS3231 (DS3231)

1.1 GPLv2 * en Roman Savochenko

I2C RTC chips DS1307,DS3231 with Temperature sensor and calibration for DS3231. Connects through a Serial output transport into the I2C mode.

Template IOs

Identifier Parameter Type Mode Attribute Configuration Value
transport Transport of the I2C, Serial String Input Not attribute Constant i2c
addr Device address [0...119] Integer Input Not attribute Constant 119
mode Mode Integer numbers selection Input Full access Variable 0

0;1
DS3231;DS1307

tm Date and time, YYYY-MM-DDTHH:mm:SS String Input Full access Variable
pSQW Enable SQUARE-WAVE OUTPUT Boolean Input Full access Variable
pSQWf
(dynamically updated)
SQUARE-WAVE OUTPUT frequency Integer Input Full access Variable
agOff
(dynamically created for DS3231)
Aging offset, [-128...127] Integer Input Full access Variable
t
(dynamically created for DS3231)
T, °С Real Input Read only Variable
p32k
(dynamically created for DS3231)
Enable 32768Hz Boolean Input Full access Variable
f_frq Function calculate frequency (Hz) Real Input Not attribute Variable 1000
f_start Function start flag Boolean Input Not attribute Variable 0
f_stop Function stop flag Boolean Input Not attribute Variable 0
f_err Function error String Input Not attribute Variable 0

Configuring and using

1. Create an output transport of the type "Serial" and set its Identifier like to "i2c", one for each the I2C bus.
2. Set proper address of the Serial device, only the I2C bus address like "/dev/i2c-{N}". Set the symbol's time into the timeouts field to the minimum value.
3. Create and start a logical controller object or use any presented one with the needed scheduling properties.
4. Create a logical parameter object and select the template for that, one for each I2C slave devices. Enable the parameter.
5. Into the tab "Template configuration" of the logical parameter object you need to set:
  • transport — to the address of the transport into step 1. Tracing for the address changing is supported.
  • addr — the I2C slave device's address [0...119].
6. Result: The logical parameter object will perform interaction and placing of gathered data to the DateTime, Temperature and some one state attributes and also will take the DateTime, some one state attributes and write it to the chip.


10 I2C: AT24C{32|64} (AT24CXX)

1.0 GPLv2 * en Roman Savochenko

Provides operations with EEPROM memory based on I2C chips AT24C32 (4KB) and AT24C64 (8KB). Supported random reading and writing.

Output user protocol's XML request structure
<{cmd} addr="{ChipAddr}" off="{MemOffset}" size="{ReadSize}" err="1:Error">{ReadWriteSeq}</{cmd}>

cmd — command, for now there allowed: "read", "write";
addr — I2C device address [0...119];
off — memory part offset;
size — read memory block size.
ReadWriteSeq — Read/Write bytes sequence.
err — sets to result of the request.

Configuring and using

1. Create an output transport of the type "Serial" and set its Identifier like to "i2c", one for each the I2C bus.
2. Set proper address of the Serial device, only the I2C bus address like "/dev/i2c-{N}". Set the symbol's time into the timeouts field to the minimum value.
3. Place some requesting commands directly into presented or a new internal OpenSCADA procedure like to:
req = SYS.XMLNode("read"); req.setAttr("ProtIt","AT24CXX").setAttr("addr",87).setAttr("off",1000).setAttr("size",20).setText("My message");
req = SYS.XMLNode("write"); req.setAttr("ProtIt","AT24CXX").setAttr("addr",87).setAttr("off",1000).setText("Stored data");
4. Result: Into text() for "read" you will get the read data if no errors occur.


11 GPIO: DHT11,22 (DHT)

1.0 GPLv2 * en Roman Savochenko

Digital Temperature and Humidity Sensor for models: DHT11, DHT12, AM2302, AM2320, ... . The module designed for the sensors connect through GPIO, mostly it's Raspberry PI BCM2835 GPIO.
Conditions: Exclusively realtime planing in the priority 199 (FIFO-99).

Template IOs

Identifier Parameter Type Mode Attribute Configuration Value
addr GPIO address with functions mode(), get() and put(), mostly it's BCM2835 String Input Not attribute Constant DAQ.GPIO.io.pi
pin IO pin number of the GPIO Integer Input Not attribute Constant 17
tries Tries [1...5] Integer Input Not attribute Constant 2
dev Device (0-DHT11, 1-DHT22) Integer Input Not attribute Constant 1
t T, °С Real Input Read only Variable
h H, % Real Input Read only Variable
f_frq Function calculate frequency (Hz) Real Input Not attribute Variable 1000
f_start Function start flag Boolean Input Not attribute Variable 0
f_stop Function stop flag Boolean Input Not attribute Variable 0
f_err Function error String Input Not attribute Variable 0

Configuring and using

1. Create an output controller object and a parameter into the DAQ module "BCM 2835", by default it's "pi.pi".
2. Create and start a logical controller object or use any presented one with the needed scheduling properties (FIFO-199).
3. Create a logical parameter and select the template for that, one for each sensor. Enable the parameter.
4. Into the tab "Template configuration" of the logical parameter object you need to set:
  • addr — to the address of the "BCM 2835" parameter like "DAQ.GPIO.io.pi"; tracing for the address changing is supported;
  • pin — GPIO pin number where connected the data pin of the sensor;
  • tries — tries of the sensor reading;
  • dev — generic device specific selection.
5. Result: The logical parameter will perform interaction and placing of the gathered data to the Temperature and Humidity attributes.


12 GPIO: MAX6675 (MAX6675)

0.1 GPLv2 * en Arcadiy Kisel

Cold-Junction-Compensated K-Thermocouple-to-Digital Converter (0°C to +1024°C). The module designed for the sensors connect through softSPI by GPIO, mostly it's Raspberry PI BCM2835 GPIO.
Conditions: Exclusively realtime planing in the priority 199 (FIFO-99).

Template IOs

Identifier Parameter Type Mode Attribute Configuration Value
addr GPIO address with functions mode(), get() and put(), mostly it's BCM2835 String Input Not attribute Constant DAQ.GPIO.io.pi
pin_cs CS pin number of the GPIO Integer Input Not attribute Constant 8
pin_sclk SCLK pin number of the GPIO Integer Input Not attribute Constant 11
pin_miso MISO pin number of the GPIO Integer Input Not attribute Constant 9
t T, °С Real Output Read only Variable
f_frq Function calculate frequency (Hz) Real Input Not attribute Variable 1000
f_start Function start flag Boolean Input Not attribute Variable 0
f_stop Function stop flag Boolean Input Not attribute Variable 0
f_err Function error String Input Not attribute Variable 0

Configuring and using

1. Create an output controller object and a parameter into the DAQ module "BCM 2835", by default it's "pi.pi".
2. Create and start a logical controller object or use any presented one with the needed scheduling properties (FIFO-199).
3. Create a logical parameter and select the template for that, one for each sensor. Enable the parameter.
4. Into the tab "Template configuration" of the logical parameter object you need to set:
  • addr — to the address of the "BCM 2835" parameter like "DAQ.GPIO.io.pi"; tracing for the address changing is supported;
  • pin_cs — CS pin number where connected the chip selection pin of the sensor;
  • pin_sclk — SCLK pin number where connected the serial clock pin of the sensor;
  • pin_miso — MISO pin number where connected the master in slave out (data) pin of the sensor.
5. Result: The logical parameter will perform interaction and placing of the gathered data to the Temperature attributes.


13 GPIO|I2C: 1602A(HD44780) (1602A)

1.0 GPLv2 * en Roman Savochenko

LCD Module 1602A, STN, BLUB, 16 Character x 2 Line, 5 x 8 Dots, by the direct (Raspberry PI BCM2835 GPIO) or I2C (PCF8574) wiring.
Conditions: Default planing policy but realtime one preferred.

Template IOs

Identifier Parameter Type Mode Attribute Configuration Value
transport Transport of the I2C, Serial (i2c) or

GPIO address with function put(), mostly it's BCM2835 (DAQ.GPIO.io.pi)

String Input Not attribute Constant i2c
addr I2C device address [0...119] Integer Input Not attribute Constant 39
RS GPIO Pin: Reset Integer Input Not attribute Constant 7
E GPIO Pin: Enable Integer Input Not attribute Constant 8
D4 GPIO Pin: Data4 Integer Input Not attribute Constant 25
D5 GPIO Pin: Data5 Integer Input Not attribute Constant 24
D6 GPIO Pin: Data6 Integer Input Not attribute Constant 23
D7 GPIO Pin: Data7 Integer Input Not attribute Constant 18
ln1 Line 1 String Input Full access Variable
ln2 Line 2 String Input Full access Variable
f_frq Function calculate frequency (Hz) Real Input Not attribute Variable 1000
f_start Function start flag Boolean Input Not attribute Variable 0
f_stop Function stop flag Boolean Input Not attribute Variable 0
f_err Function error String Input Not attribute Variable 0

Configuring and using

1. Create an output controller and an object of parameter in DAQ module "BCM 2835", by default it's "pi.pi" or create an output transport of the type "Serial", set address like to "i2c", one for each the I2C bus.
2. Create and start a logical controller object or use any presented one with the needed scheduling properties.
3. Create a logical parameter object and select the template for that, one for each sensor. Enable the parameter.
4. Into the tab "Template configuration" of the logical parameter object you need to set:
  • transport — to address of the "BCM 2835" parameter like to "DAQ.GPIO.io.pi" or to address of the transport into step 1; tracing for the address changing is supported;
  • addr — the I2C slave device's address [0...119];
  • RS, E, D4, D5, D6, D7 — numbers of the GPIO pins where connected the proper data ones of the sensor.
5. Result: The logical parameter object will perform interaction and setting lines' values to the display.