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check_modbus

Rating
5 votes
Favoured:
2
Current Version
0.46
Last Release Date
2013-05-30
Owner
License
GPL
Hits
63778
Files:
FileDescription
check_modbus-0.46.tar.gzcheck_modbus-0.46.tar.gz
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This is Nagios plugin for Modbus TCP and Modbus RTU using RS232/RS485. It can be used to monitor PLCs and any other industrial devices supported Modbus TCP or Modbus RTU.
This is Nagios plugin for Modbus TCP and RTU.

Added many useful features:
- support of IPv6 / IPv4
- support of DNS names
- serial port connections (RS232 and RS485) with Modbus RTU (when compiled with libmodbus >= 3.0.0)
- support of many data formats (unsigned/signed int16_t, int32_t, float, double)
- support of several data orders (LSB, MSB and some others)
- retries can be sent to get reliable answer
- supports performance data
- supports creation dump of the registers in different formats (binary, hexadecimal, decimal)
- support binary dump as an input source for data (useful for off-line data)
- separate lock files for input and output


The lastest version can be found here
https://github.com/AndreySV/check_modbus.
Reviews (4)
byfearstrider, October 28, 2018
I needed to make friends of ICP DAS (PET-7253) with Nagios3. Namely, to read discrete inputs. 1: OK, 0: Critical.
The plugin did a great job! Thanks!!
Hi..
Need to add some more functionalities like MODBUS parsing
As of now plugin only capable to poll data ,but using this we can not parse data.Please modify this so we can easily monitor individual parameters using check commands..
Owner's reply

what do you mean by parse data?

Please create feature request as new issue on github:
https://github.com/AndreySV/check_modbus

byinvitu, September 19, 2015
a perfect plugin that can do calculation on values
bymarcof, October 8, 2012
1 of 1 people found this review helpful
Hi,

I read in the description you could write a plugin for ModBus RTU / RS485. I need one :-) I've connected the RS485 directly to the nagios server by a comserver (serial over ethernet) modpoll is working so far... So the plugin should be able to just use a /dev/tty device.

thanks
marco
Owner's reply

Hi, Marco. Thank you very much for the rating. Since version 0.4 check_modbus supports Modbus RTU over RS232/RS485 and some other features.