Abstract:
As we know the PLC (programmable logic controller) become one of the most popular automation part in any industrial systems. The PLC has high accuracy and fast response plus high performance, so it is suitable for all industrial applications such as sensors signal, analogue input (thermal applications).
Recently interfacing between electronic and electric equipments could be possible by using technology and computer language. So PLC can be controlled remotely via Mobile Phone board using DTMF (Dual Tone Multiple Frequency) decoder.
