Appendix F. Foundation Fieldbus Communication
122 PanaFlow™ XMT1000 User’s Manual
F.9 Analog Input Block
The Analog Input (AI) Block (see Figure 76 below) is designed as a generalized signal conditioning function. The
output from an AI block can be connected to the Fieldbus. The AI block receives and processes data measured by
the Transducer Block and provides additional functions such as scaling, filtering, alarm generation, and trending.
Figure 76: Analog Input (AI) Block
F.10 PID Block
The PID function offers control based on a programmable algorithm. The PID function block may be used with a valve
to control flow.
Note: See Foundation Fieldbus Specifications for more detail on use of the PID Block.