modbuslog - 2012/01/10
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modbuslog is a program designed to read from a modbus device at predefined
intervals and store the output to file.
Compilation:
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modbuslog requires the libconfig (>1.4.8) and libmodbus (>3.0.1) libraries,
and will not function without these libraries installed. Neither of these
libraries are currently available (or if they are, are not of sufficient
version) in the current Debian Stable release codenamed "Squeeze". This
means that these dependencies must be manually fulfilled.
libmodbus: It should be sufficient to backport the current version of
libmodbus from Debian Testing codenamed "Wheezy"
http://packages.debian.org/wheezy/i386/libmodbus5/download
http://packages.debian.org/wheezy/i386/libmodbus-dev/download
libconfig: An older, incompatible version of libconfig currently exists
in Debian Squeeze (right the way up to Sid). An updated package
has been created and will hopefully be included in the next
Debian Stable release. In the mean time it is available here:
http://mentors.debian.net/package/libconfig
When it gets accepted, it will be available here:
http://packages.debian.org/source/testing/libconfig
modbuslog uses a Makefile to ease compilation, and as such, can be compiled
by simple navigating to the directory and running "make". This will recompile
any packages that need to be compiled.
These files can then be moved to the required directories on the target system.
Required files:
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/sbin/modbuslog executable program
/etc/modbuslog.cfg configuration file
/var/modbuslog/ output directory where logs are stored
/var/modbuslog/interval/interval.txt textfile storing unique interval
/var/www/ webserver directory for php scripts
Configuration:
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The configuration file for modbuslog is stored in /etc/modbuslog.cfg, and is
arranged in a hierarchical structure suitable for libconfig.
The modbus section defines the standard operating parameters for the modbus
device, These include:
1) device serial port in use
2) baud baud rate in use
3) data_bits number of data bits, commonly 8.
4) parity parity, commonly E (even) or N (None).
5) stop_bits stop bits, commonly 1.
6) retry number of retries for each failed reading.
The reading section defines the unique reading times that the program is
required to log at. Each entry must contain:
1) slaveid modbus slave id
2) registertype type of modbus reading
3) startaddress register to start reading from
4) numregisters number of registers to read
5) intervalvalue read register every x
6) intervalunit (m) minutes or (h) hours
The -d argument can also be passed to modbuslog to enable a verbose debugging
mode.
class='nohover'>| Age | Commit message (Collapse) | Author | Files | Lines |
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some Fixme's processed
documented some code
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made README.Plugins and plugin_sample up to date.
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some cleanups in the MatrixOrbital driver
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fixed lots of bugs in the Cwlinux driver
do not emit EAGAIN error on the first retry
made plugin_i2c_sensors a bit less 'chatty'
moved init and exit functions to the bottom of plugin_pop3
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added NULL display driver (for debugging/profiling purposes)
added backlight/contrast initialisation for matrixOrbital
added Backlight initialisation for Cwlinux
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ChangeLog update
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fixed symlink security issue with the image driver
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fixed possible bugs with user-defined chars (clear high bits)
thanks to Andy Baxter for debugging the MilfordInstruments driver!
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fixed bug in Milford Instruments driver which drew extra graphics chars in
odd places when drawing double bars. (the display doesn't like it if you put
the escape character 0xfe inside a define char sequence).
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Crystalfontz 631 driver finished
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fixed a compiler issue with drv_Image.c (thanks to Frank Stratmann)
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M50530: reset parport signals on exit
plugin_ppp: ppp() has two parameters, not three
lcd4linux.conf.sample: diskstats() corrected
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bug in plugin_diskstats fixed
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added plugin_diskstats.c
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Status and Changelog Update
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