Difference between revisions of "Plugin:Modbus"
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== Dependencies == | == Dependencies == | ||
| − | * [ | + | * [http://libmodbus.org/ libmodbus] |
Revision as of 13:16, 6 January 2011
| Modbus plugin | |
|---|---|
| Type: | read |
| Callbacks: | config, read, shutdown |
| Status: | supported |
| First version: | 4.10 |
| Copyright: | 2010 noris network AG |
| License: | GPLv2 (v4.10) LGPLv2.1 (since v5.0) |
| Manpage: | collectd.conf(5) |
| List of Plugins | |
The Modbus plugin connects to a Modbus "slave" via Modbus/TCP and reads register values. It supports reading single registers (unsigned 16 bit values), large integer values (unsigned 32 bit values) and floating point values (two registers interpreted as IEEE floats in big endian notation).
This plugin is a generic plugin, i.e. it cannot work without configuration, because there is no reasonable default behavior. Please read the Plugin modbus section of the collectd.conf(5) manual page for an in-depth description of the plugin's configuration.
Synopsis
<Plugin modbus>
RegisterBase 0
RegisterType float
Type voltage
Instance "input-1"
RegisterBase 2
RegisterType float
Type voltage
Instance "input-2"
<Host "modbus.example.com">
Address "192.168.0.42"
Port "502"
Interval 60
<Slave 1>
Instance "power-supply"
Collect "voltage-input-1"
Collect "voltage-input-2"
</Slave>
</Host>
</Plugin>
Example Graphs
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