4 Design and Function
4.5.5 MFA8 Process Board
The process board MFA8 provides for eight intrinsic output
safe circuits:
• One digital message output (D1a/D1b).
• Three digital outputs (D2+/D2-, D3+/D3-) for
messages, trigger outputs or LF pulses.
• Four analog outputs (I1, I2, I3/I-) 0... 20 mA or
4 … 20 mA for measurements.
Fig. 4-8