Hi,

Is anyone aware of a command line utility for Linux to set the value of a coil on a modbus device (like modpoll but to set a value not read)?

Thanks!

 

ruby -rrmodbus -e 'ModBus::TCPClient.new '1.2.3.4' do |cl|;cl.write_coil(1000, 0);end'

;-)

 

<pre>ruby -rrmodbus -e 'ModBus::TCPClient.new "1.2.3.4" do |cl|;cl.write_coil(1000, 0);end'

or better, in file write_coil.rb:
----
#!/usr/bin/env ruby

require 'rmodbus'
ModBus::TCPClient.new "1.2.3.4" do |cl|
cl.write_coil(1000, 0)
end</pre>
----

then run chmod +x write_coil.rb, and run with ./write_coil.rb

 

Hi!

I have written a ruby command line tool for this. please check out http://www.github.com/tallakt/modbus-cli