
174 Siemens Simatic S7 Driver Online Help
See Also
Specifying Signal Conditioning in Database Manager
LIN Signal Conditioning
Signal conditioning defines how the process database scales incoming data.
Write
Algorithm
Writes to a 16-bit register with
alarming using the same algorithm
as 15BN, and returns a status
indicating whether the value is out
of range and in an alarm state, or
OK.
Result = (((InputData –
Lo_egu)/Span_egu) * 32767) + 0.5.
Write
Algorithm
Variables
Lo_egu – the low engineering
value.
Span_egu – the span of the
engineering values.
InputData – the database block’s
current value.
Result – the value sent to the
process hardware.
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