Can some one tell me how PLC's are used in Telecommunication, I need an example of some istructions if possible, or some hints to reffer to a book or manual or wib site.
1 Referenc your PLC's manual to accessing comunacation port;
2 Send AT instruction(Eg.: ATDT 12345678) by call your comunacation program to dial-up you want.The AT instruction is in ASCII format. Referenc AT instuction for detail.