Schweitzer Meters
Purpose
The purpose of this plugin is to collect data from Read Schweitzer Engineering Electricity Meters via Modbus.
Usage
This plugin reads the data from Schweitzer Engineering Electricity Meters model SEL 735
via Modbus, and via serial or TCP. Meter data will be collected to the meter
table. By default, it will collect data every 5 minutes, but can collect at a minimum rate of about 0.3 seconds
via TCP. The plugin will make 1
attempt (by default) to read the meter. This plugin relies on the Modbus Ardexa
plugin. Two config files are available, sel735_meter.txt
and sel735_meter_new.txt
. The types have different scaling factors and numbers of variables. Type 1 was the original configuration file, and Type 2 is an updated version, with different scaling factors. Try each and see which one is correct. The following variables are collected for sel735_meter.txt
:
The following variables are collected for sel735_meter_new.txt
:
Arguments
Arguments are as follows:
endpoint
. This is either a serial device like/dev/ttyS0
or an IP or DNS like192.168.1.15
configuration file
. This is the configuration file for the meter type. Choose from the list provided.--bus_addresses
. This is an optional parameter. A Modbus address in the range 2-255. This can be a hyphenated list like3-10
or a list like2,5,7,9
--port
. This is an optional parameter used in an Ethernet gateway, and is the TCP port used for the gateway. Default is502
--attempts
. This is an optional parameter, and determines how many times to times to attempt to read an inverter value. Default is1
--delay
. This is the delay in seconds between inverter send and receive commands, AND ifattempts
> 1. Fractions like0.3
can be used. Default is0.05
--stop_on_any_command_fail
. If this is specified, then any Modbus commands that fail will stop all further queries for all bus addresses and attempts.--serial_lock
. If this is set, the program can only be run one at a time (so as not to overload a Modbus device). If the device being queried is a serial device, this will automatically be set to "on". For IP addresses it is optional.--sampling_rate
. If this is defined, and the sampling rate is greater than 1, then all values listed above will be collected as an average. In other words; it will take a sample at the nominated frequency. After X samples defined bysampling_rate
, a record will be written and sent to the cloud.
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