Create Modbus client via script

[toujour]

Hi to Everybody,

I like your scripts !! 

I have a problem with only one object in modbus mapping profile, please see the image in the attachment.

I want change the COIL 192 to COIL 191 ( I forgot it in the profile       )

Can I use a script to change only this point ? I have more then 500 point in this modbus device.

Thanks in Advance !

Alberto