
Chapter 10. Configuring the I/O Driver from FIX/iFIX Applications175
Parameters for LIN Signal Conditioning
Description 8-bit or 16-bit binary number.
Input Range • 0 – 65535 (16-bit)
• –32768 - +32767 (16-bit)
• 0 - 255 (8-bit)
• -128 - 127 (8-bit)
The driver automatically determines
which input range to use.
Scaling Scales 8-bit or 16-bit binary values
to the database block’s EGU range,
depending on the selected hardware
option or the default data type of the
datablock.
Read
Algorithm
Reads from a 16-bit register using
the following algorithm:
Result = ((Raw_value/65535) *
Span_egu) + Lo_egu
Read
Algorithm
Variables
Lo_egu – the database block’s low
engineering value.
Span_egu – the span of the
engineering values.
Raw_value – the value stored in the
field device’s register.
Result – the scaled value stored in
the database block.
Commentaires sur ces manuels