98_ModbusAttr.pm: added Module for generic modbus devices, readings can be defined by attributes similar to HTTPMOD
98_ModbusAttr.pm: added Module for generic modbus devices, readings can be defined by attributes similar to HTTPMODView Changes
Source: 98_ModbusAttr.pm: added Module for generic modbus devices, readings can be defined by attributes similar to HTTPMOD (http://sourceforge.net/p/fhem/code/8254/)