Arduino Modbus Slave Library Needed
With my post approaching one month without a single reply  :smiley-confuse: !
(for whichever reason) I would like to post for those who may need this library :

https://drive.google.com/file/d/0Bx5wWRfN_z7oMDlZMDhWbXM2VFU/view
The library is based on the original one written by Jason Vreeland [CodeRage]
Released 3/7/2010 under GNU license
and was used (and possibly modified) by &quot;jhottell&quot; on electronhacks.com :
https://electronhacks.com/2014/04/arduino-modbus-plc-rtu/
The major difference is the use of RS485.
I have written code and tested it on an &quot;UNO&quot; which worked perfectly with more
than one ModBus Slave Simulator under windows, including DAQ Factory which
is a professional package used in actual industry.