Table of Contents
- EDS
- Embedded Data Systems Sensors
- EDS0064
- Temperature
- EDS0065
- Temperature and Humidity
- EDS0066
- Temperature and Barometric Pressure
- EDS0067
- Temperature and Light
- EDS0068
- Temperature, Barometric Pressure and Light
- EDS0070
- Vibration
- EDS0071
- RTD 4-wire temperature
- EDS0072
- RTD 3-wire temperature
- EDS0080
- 8 Channel Analog Current Input
- EDS0082
- 8 Channel Analog Voltage
Input
- EDS0083
- 4 Channel Analog Current Input
- EDS0085
- 4 Channel Analog Voltage
Input
- EDS0090
- 8 Discrete I/O
Embedded Data Systems microprocessor-based
sensors
7E [.]XXXXXXXXXXXX[XX][/[ device_id | device_type
| tag ]]
7E [.]XXXXXXXXXXXX[XX][/[ memory | pages/page.[0-2|ALL]
]]
7E [.]XXXXXXXXXXXX[XX][/[ address | crc8 | id
| locator | r_address | r_id | r_locator | type ]]
7E.XXXXXXXXXXXX/EDS006X [/[ temperature | counters/seconds | alarm/temp_[hi|low]
| alarm/clear | set_alarm/temp_[hi|low] | threshold/temp_[hi|low] ]]
7E.XXXXXXXXXXXX/EDS006X [/[ humidity | humidex | dew_point | heat_index
| alarm/humidity_[hi|low] | alarm/humidex_[hi|low] | alarm/dew_point_[hi|low]
| alarm/heat_index_[hi|low] | alarm/clear | set_alarm/humidity_[hi|low] | set_alarm/humidex_[hi|low]
| set_alarm/dew_point_[hi|low] | set_alarm/heat_index_[hi|low] | threshold/humidity_[hi|low]
|
threshold/humidex_[hi|low] | threshold/dew_point_[hi|low] | threshold/heat_index_[hi|low]
]]
7E.XXXXXXXXXXXX/EDS006X [/[ pressure
| inHg | alarm/pressure_[hi|low] | alarm/inHg_[hi|low] | alarm/clear | set_alarm/pressure_[hi|low]
| set_alarm/inHg_[hi|low] | threshold/pressure_[hi|low] | threshold/inHg_[hi|low]
]]
7E.XXXXXXXXXXXX/EDS006X [/[ light | alarm/light_[hi|low]
| alarm/clear | set_alarm/light_[hi|low] | threshold/light_[hi|low] ]]
7E.XXXXXXXXXXXX/EDS0070 [/[ vib_level | vib_peak | vib_min | vib_max
| counter/seconds | alarm/vib_[hi|low] | alarm/clear | set_alarm/vib_[hi|low]
| threshold/vib_[hi|low] ]]
7E.XXXXXXXXXXXX/EDS007X
[/[ temperature | resistance | raw | delay | user_byte | calibration/[key|constant]
| counter/[seconds|samples] | alarm/temp_[hi|low] | alarm/RTD_[hi_low] | alarm/clear
| set_alarm/temp_[hi|low] | set_alarm/RTD_[hi_low] | threshold/temp_[hi|low]
| threshold/RTD_[hi_low] ]]
7E.XXXXXXXXXXXX/EDS0080
[/[ current.[0-7|ALL] | max_current.[0-7|ALL] | min_current.[0-7|ALL] | threshold/current_hi.[0-7|ALL]
| threshold/current_low.[0-7|ALL] | alarm/current_hi.[0-7|ALL|BYTE] | alarm/current_low.[0-7|ALL|BYTE]
| set_alarm/current_hi.[0-7|ALL|BYTE] | set_alarm/current_low.[0-7|ALL|BYTE] | counter/seconds
| memory | pages/page.[0-4|ALL]
7E.XXXXXXXXXXXX/EDS0082
[/[ volts.[0-7|ALL] | max_volts.[0-7|ALL] | min_volts.[0-7|ALL] | threshold/volts_hi.[0-7|ALL]
| threshold/volts_low.[0-7|ALL] | alarm/volts_hi.[0-7|ALL|BYTE] | alarm/volts_low.[0-7|ALL|BYTE]
| set_alarm/volts_hi.[0-7|ALL|BYTE] | set_alarm/volts_low.[0-7|ALL|BYTE] | counter/seconds
| memory | pages/page.[0-4|ALL]
7E.XXXXXXXXXXXX/EDS009X [/[ input.[0-7|ALL]
| counter/[seconds | pulses.[0-7|ALL]|reset.[0-7|ALL|BYTE]] | output/[set.[0-7|ALL|BYTE]|off.[0-7|ALL|BYTE]|reset.[0-7|ALL|BYTE]]
| latch/[state.[0-7|ALL|BYTE]|reset.[0-7|ALL|BYTE]] | alarm/[hi.[0-7|ALL]|low.[0-7|ALL]|clear]
| set_alarm/[hi.[0-7|ALL]|low.[0-7|ALL]]
7E.XXXXXXXXXXXX/EDS00XX/LED/[state|control]
7E.XXXXXXXXXXXX/EDS00XX/relay/[state|control]
- 7E
read-only, floating-point
Temperature for the EDS006X series of chips. In the -55C to 125C range, with
0.0636C precision. The temperature is read every second, continually. Data
is presented in the specified temperature scale, Celsius by default.
read-only,
floating-point
Temperature for the EDS007X series of chips. Read using a wide-range precise
RTD sensor. Typical range is -60C to 260C with 0.15C accuracy, although a
range of -200C to 850C is possible. The temperature is read every second
unless a longer EDS007X/delay is given. Data is presented in the specified
temperature scale, Celsius by default.
read-only, floating-point
Actual measured resistance (Ohms) of the RTD element. Useful if the RTD
element doesn’t conform to the typical European IEC 60751 standard.
read-only,
floating-point
Relative humidity in the 0-100 range (percent). Read every 0.2 seconds.
read-only,
floating-point
Dew point computed from EDS006X/temperature and EDS006X/humidity computered
every 0.2 seconds. Data is a calculated temperature and is reported in the
specified temperature scale. Default Celsius.
read-only,
floating-point
Heat index computed from EDS006X/temperature and EDS006X/humidity computered
every 0.2 seconds. Data is a calculated temperature and is reported in the
specified temperature scale. Default Celsius.
read-only, floating-point
Humidex (popular in Canada) computed from EDS006X/temperature and EDS006X/humidity
computed every 0.2 seconds. Data is a percent and reported in the 0-100 range.
read-only, unsigned integer
Ambient light in Lux. Measured every 0.2 seconds.
read-only,
floating-point
Ambient pressure, measured every 0.2 seconds. Data in the selected pressure
scale (default mBar).
read-only, floating-point
Ambient pressure, measured every 0.2 seconds. Data in the inHg scale.
read_only,
unsigned integer
Vibration registered by sensor (instantaneous value) in 0-1023 range.
read_only,
unsigned integer
Vibration registered by sensor (highest recent value -- slowly decays) in
0-1023 range.
read_only, unsigned integer
Vibration registered by sensor (lowest value) in 0-1023 range.
read_only,
unsigned integer
Vibration registered by sensor (highest value) in 0-1023 range.
The
EDS0080 and EDS0083 measure current in the 4-20mA range, with upper and
threshold limits and the ability to set an alarm and independently trigger
a relay if the value is out of range.
read-only,
floating point
Current current level. (4-20mA)
read-only, floating point
Maximum and minimum current readings since last alarm/clear command.
The
EDS0082 and EDS0085 measure voltage in the 0-10V range, with upper and
threshold limits and the ability to set an alarm and independently trigger
a relay if the value is out of range.
read-only,
floating point
Current voltage level. (0-10V)
read-only, floating point
Maximum and minimum voltage readings since last alarm/clear command.
High
and low range of acceptable sensor readings. Values outside this range will
trigger an alarm if the corresponding EDS00XX/set_alarm flag is set.
read-write, floating-point
Threshold temperatures in the specified temperature scale. Default Celsius.
read-write, floating-point
Threshold humidity values. Dew point and Heat index are in the specified
temperature scale. Default Celsius.
read-write, floating-point
Threshold barometric pressure values. Pressure is the specified pressure
scale. Default mBar.
read-write,
unsigned
Threshold light (lux) values.
read-write,
unsigned
Vibration sensor alarm limits in 0-1023 range.
read-write, floating-point
Threshold RTD resistance values (Ohm).
read-write,
floating-point
Voltage or current threshold limits
Set conditional alarm to trigger
if corresponding flag is set. Also must set high and low threshold.
read-write,
yes-no
Flag to set corresponding out-of-range alarm. "1" turns on flag, and "0" turns
off.
Show or clear the out-of-range flags. When set, the device will respond
to a conditional search. Clearing the flags is performed with the EDS00XX/alarm/clear
command, not just having the measured value return to the center range.
write-only, yes-no
Write "1" to clear ALL the alarm flags.
read-only, yes-no
Show corresponding out-of-range alarm. "1" means in alarm state. Can only be
turned off with clear
Optionally found on the EDS006X and EDS007X.
Can be controlled by software or the alarm condition.
read-write,
unsigned
Set the relay control scheme:
- alarm control with hysteresis
- alarm control
but need EDS00XX/alarm/clear to unset
- Control with EDS00XX/relay/state
- Always off
read-write, yes-no
Turn the relay on or off if the EDS00XX/relay/control is set to "2"
Found on the EDS006X and EDS007X. Can be controlled by software or
the alarm condition.
read-write, unsigned
Set the LED control scheme:
- alarm control with hysteresis
- alarm control
but need EDS00XX/alarm/clear to unset
- Control with EDS00XX/LED/state
- Always
off
read-write, yes-no
Turn the LED on or off if the EDS00XX/LED/control is set to "2"
read-only,
unsigned integer
Approximate seconds since power up.
read-only,
unsigned integer
Pulses on each channel since power up or reset. Channel should be set to
input ( EDS0090/output/set.x =0 )
read-write,
yes-no
Clear the pulse count on the corresponding channel.
read-only,
unsigned integer
Approximate samples since power up.
read-write, binary
96 bytes of memory. Not all is writable. Access to EDS00XX functions is better
accomplished through the data fields, which expose all the chip features.
read-write, binary
Memory is split into 3 pages of 32 bytes each. Only page 2 is writable. ALL
is an aggregate of the pages. Each page is accessed sequentially.
read-write,
binary
160 bytes of memory. Not all is writable. Access to EDS008X functions is
better accomplished through the data fields, which expose all the chip
features. The EDS008X has more memory than the other chips, so a separate
entry in the sudbirectory makes it available.
read-write,
binary
Memory is split into 5 pages of 32 bytes each. Only page 5 is writable.
The EDS008X has more memory than the other chips, so a separate entry in
the sudbirectory makes the extra pages available. ALL is an aggregate of
the pages. Each page is accessed sequentially.
read-only, ascii
Text description of the device. Up to 30 characters.
read-only,
ascii
Device name. E.g: "EDS0071"
read-only, unsigned
Number corresponding to the hexidecimal type. E.g:
EDS0071 -> 0x0071 -> 113 in decimal
read-only,
ascii
The entire 64-bit unique ID. Given as upper case hexidecimal digits (0-9A-F).
address starts with the family code
r address is the address in reverse order, which is often used in other
applications and labeling.
read-only, ascii
The 8-bit error correction portion. Uses cyclic redundancy check. Computed
from the preceding 56 bits of the unique ID number. Given as upper case
hexidecimal digits (0-9A-F).
read-only, ascii
The 8-bit family code. Unique to each type of device. Given as upper case
hexidecimal digits (0-9A-F).
read-only, ascii
The 48-bit middle portion of the unique ID number. Does not include the family
code or CRC. Given as upper case hexidecimal digits (0-9A-F).
r id is the id in reverse order, which is often used in other applications
and labeling.
read-only, ascii
Uses an extension of the 1-wire design from iButtonLink company that associated
1-wire physical connections with a unique 1-wire code. If the connection is
behind a Link Locator the locator will show a unique 8-byte number (16 character
hexidecimal) starting with family code FE.
If no Link Locator is between the device and the master, the locator field
will be all FF.
r locator is the locator in reverse order.
read-only,
yes-no
Is the device currently present on the 1-wire bus?
read-only, ascii
Part name assigned by Dallas Semi. E.g. DS2401 Alternative packaging (iButton
vs chip) will not be distiguished.
None.
1-wire
is a wiring protocol and series of devices designed and manufactured by
Dallas Semiconductor, Inc. The bus is a low-power low-speed low-connector scheme
where the data line can also provide power.
Each device is uniquely and
unalterably numbered during manufacture. There are a wide variety of devices,
including memory, sensors (humidity, temperature, voltage, contact, current),
switches, timers and data loggers. More complex devices (like thermocouple
sensors) can be built with these basic devices. There are also 1-wire devices
that have encryption included.
The 1-wire scheme uses a single bus master
and multiple slaves on the same wire. The bus master initiates all communication.
The slaves can be individually discovered and addressed using their unique
ID.
Bus masters come in a variety of configurations including serial, parallel,
i2c, network or USB adapters.
OWFS is a suite of programs that
designed to make the 1-wire bus and its devices easily accessible. The underlying
priciple is to create a virtual filesystem, with the unique ID being the
directory, and the individual properties of the device are represented
as simple files that can be read and written.
Details of the individual
slave or master design are hidden behind a consistent interface. The goal
is to provide an easy set of tools for a software designer to create monitoring
or control applications. There are some performance enhancements in the
implementation, including data caching, parallel access to bus masters,
and aggregation of device communication. Still the fundemental goal has
been ease of use, flexibility and correctness rather than speed.
The EDS00XX sensors are a family of devices from Embedded Data
Systems. Although provisional support for several types is included, only
early EDS0071 has been tested with OWFS.
The sensors all share the same
7E family code. They have the same first memory page layout with a text
tag property that describes them, and a sub-type field giving the particular
sensor. The data properties shown in a directory listing will be specific
to the sensor sub-type.
The EDS0071 (3)
is a micro-processor based
1-wire slave made by EDS (Embedded Data Systams). Is uses a high accuracy
and extended range RTD sensor to accurately measure temperatures.
The
EDS00XX sensors are read and controlled by accessing parts of their on-chip
memory. Although the raw memory contents are exposed in the memory and
pages fields, all the available functionality is best accessed by the other
fields. In fact, directly changing memory will confuse OWFS.
All
the EDS00XX sensors have an LED and optional relay. Both can be controlled
either directly, or when the sensors reaches an alarm state.
All 1-wire devices are factory assigned a unique 64-bit address.
This address is of the form:
- Family Code
- 8 bits
- Address
- 48 bits
- CRC
- 8 bits
- Addressing under OWFS is in hexidecimal, of form:
- 01.123456789ABC
where
01 is an example 8-bit family code, and 12345678ABC is an example 48 bit
address.
The dot is optional, and the CRC code can included. If included,
it must be correct.
- EDS0064 EDS0065 EDS0066 EDS0067 EDS0068
- https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B_K3iXLLAI7vN2E4NGUwMGItMzc5MS00NDNmLTljZGYtN2NmM2Q3YWE5NmVh&hl=en
EDS0070 http://www.embeddeddatasystems.com/assets/images/supportFiles/manuals/EN-UserMan%20%20OW-Vibration%20V01.pdf
- EDS0071 EDS0072
- https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B_K3iXLLAI7vMjVhNWQzYzItZTRhMi00NGY2LWI4NTQtYjZlYTgzYzY0NmNm&hl=en
- EDS0080 EDS0083
- https://eds.zendesk.com/attachments/token/ulnpj6mvpp6yzwo/?name=EN-USERMAN+OW-IO-AIX-420+v1p0.pdf
- EDS0082 EDS0085
- https://eds.zendesk.com/attachments/token/vyai6ylpw6edala/?name=EN-USERMAN+OW-IO-AIX-10V+v1p0.pdf
- EDS0090
- 8 Discrete I/O
owfs (1)
owhttpd (1)
owftpd (1)
owserver (1)
owdir (1)
owread (1)
owwrite (1)
owpresent (1)
owtap (1)
owfs (5)
owtap (1)
owmon (1)
owtcl (3)
owperl
(3)
owcapi (3)
DS1427 (3)
DS1904(3)
DS1994 (3)
DS2404 (3)
DS2404S
(3)
DS2415 (3)
DS2417 (3)
DS2401 (3)
DS2411 (3)
DS1990A (3)
DS1982
(3)
DS1985 (3)
DS1986 (3)
DS1991 (3)
DS1992 (3)
DS1993 (3)
DS1995 (3)
DS1996
(3)
DS2430A (3)
DS2431 (3)
DS2433 (3)
DS2502 (3)
DS2506 (3)
DS28E04 (3)
DS28EC20 (3)
DS2405 (3)
DS2406 (3)
DS2408 (3)
DS2409 (3)
DS2413
(3)
DS28EA00 (3)
DS1822 (3)
DS1825 (3)
DS1820 (3)
DS18B20 (3)
DS18S20 (3)
DS1920 (3)
DS1921 (3)
DS1821 (3)
DS28EA00 (3)
DS28E04 (3)
EDS0064
(3)
EDS0065 (3)
EDS0066 (3)
EDS0067 (3)
EDS0068 (3)
EDS0071 (3)
EDS0072
(3)
MAX31826 (3)
DS1922 (3)
DS2438 (3)
EDS0065 (3)
EDS0068 (3)
DS2450 (3)
DS2890 (3)
DS2436 (3)
DS2437 (3)
DS2438 (3)
DS2751 (3)
DS2755 (3)
DS2756
(3)
DS2760 (3)
DS2770 (3)
DS2780 (3)
DS2781 (3)
DS2788 (3)
DS2784 (3)
DS2423
(3)
LCD (3)
DS2408 (3)
DS1977 (3)
DS2406 (3)
TAI8570
EDS0066 (3)
EDS0068 (3)
EEEF (3)
DS2438 (3)
http://www.owfs.org
Paul Alfille (paul.alfille@gmail.com)
Table of Contents