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Chapter 5. PROGRAMMING
5) Program
Initialization
Request
command for
operation of the
the
RTD
reading function
input module
block when it
has not
operated
The
Turns
temperature
when error is
detection
is
detected
normally
the
channel
finished
at
the
RTD
input module
for
Loaded
base No.
been
Loaded
Indicating the run
slot No.
channel during initialization
function block execution.
Specifying used
channel
Specifying
the
type or RTD
"On"
at
used
Indicating
the
error
status during initialization
function block execution
Base No.
Slot No.
Used
channel
%Q0.3.0 turns "On" when the temperature
converted into a value of Fahrenheit and a
negative is converted into a positive
In this routine, the data type of the
detected temperature value is
integer, so that it is covered into
BCD data type to be displayed to
the
output %QD0.4.0~%QD0.4.19.
5 - 7
Indicating the error
status
during
reading
function
block execution
Turns "On" when
error occurs at the
used channel
The
detected
temperature value
of channel 0
The
digital
conversion value of
channel 0
%Q0.3.2 turns on when the
detected temperature value of
centigrade is negative, and the
negative
is
converted
into
positive.
In this routine, the data type of the
detected
temperature
value
integer , so that it is covered into
BCD data type to be displayed to the
digital BCD value is output %Q0.2.0
to %Q0.2.19.
This
converts
detected
temperature value
into a value of
Fahrenheit
digital
BCD
value
is
is
routine
the
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