A
Does anyone know how to read and write Dual-tone-multi-frequency, DTMF to PLC Variable Registers? Same way we access bank account information via phone using Touch Tones on the phone keypad dial
I need to convert these Touch Tones to actual real numbers and store them in Variable Registers, at the same time I need to get these numbers out of the PLC and convert these to Touch Tones.
I have access to DTMF generator (Encoder-Decoder) I just don’t know what to do to get them into the PLC.
For example let say that someone calls and push 1234 on the phone dial, at the other end of the line I need a way for the PLC to listen to these Tones and store 1234 in a Variable Register.
Does anyone know how to do this?
I need to convert these Touch Tones to actual real numbers and store them in Variable Registers, at the same time I need to get these numbers out of the PLC and convert these to Touch Tones.
I have access to DTMF generator (Encoder-Decoder) I just don’t know what to do to get them into the PLC.
For example let say that someone calls and push 1234 on the phone dial, at the other end of the line I need a way for the PLC to listen to these Tones and store 1234 in a Variable Register.
Does anyone know how to do this?