foundation fieldbus confusion
foundation fieldbus confusion
(OP)
from what I read foundation fieldbus is digital, but I often see people representing the signals as AI (FF) and AO (FF), is this correct? (A=Analogue)
Are the following statements correct?
FF devices have analogue input and analogue output function blocks only inside the device (for example a pressure transmitter).
When a signal is transmitted from a FF device to DCS, the signal will be converted to digital before transmitting.
Finally, On the I/O list I have a level transmitter transmitting signal to DCS, so the I/O signal type should be AI (FF) or just FF or DI (FF)?
Thanks
Are the following statements correct?
FF devices have analogue input and analogue output function blocks only inside the device (for example a pressure transmitter).
When a signal is transmitted from a FF device to DCS, the signal will be converted to digital before transmitting.
Finally, On the I/O list I have a level transmitter transmitting signal to DCS, so the I/O signal type should be AI (FF) or just FF or DI (FF)?
Thanks





RE: foundation fieldbus confusion
RE: foundation fieldbus confusion
does this mean Foundation Fieldbus can transmit 4-20mA signal if analog blocks are used?
i thought FF replaced 4-20mA?
RE: foundation fieldbus confusion
RE: foundation fieldbus confusion