Analog Input Function Blocks AIFB1 and AIFB2
The two AIFBs are identical, but completely independent of each other. They utilize the output from the Level Transducer Block.
You set parameters for each AIFB in order for it to apply any required quality checks, scaling, and
AIFB1
The output of Analog Input Function Block 1 supplies the measured value and associated status information as a digital signal to two communication channels:
•via the mA Output Block to a 4 to 20 mA channel
•to the HART digital channel, as the HART Primary Variable. This can only be viewed via the HART digital channel.
AIFB2
The output of Analog Input Function Block 2 supplies the measured value and associated status information as a digital signal to the HART digital channel, as the HART Secondary Variable. This can only be viewed via the HART digital channel.
Description of the blocks
For a detailed description of how the Level Transducer Block and Analog Input Function Blocks process information, see Description of the blocks on page 100.
F: Profile structure HART
7ML19985JM01 | SITRANS LR 460 (HART) – INSTRUCTION MANUAL | Page |
