SIREC D Display Recorder 7ND4000

Programming
4-32
a. Use the UP (↑) or DOWN (↓) Arrow Keys to
highlight “Decimal fix” and press ENTER.
b. Use the UP (↑) or DOWN (↓) Arrow Keys to
highlight the desired number of decimal places
required and press ENTER.
4. Programming Basepoint - A Basepoint must
be established to perform the Moving Average
calculations on.
a. Use the UP (↑) or DOWN (↓) Arrow Keys to
highlight “Basepoint” and press ENTER.
b. Use the UP (↑) or DOWN (↓) Arrow Keys to
highlight the desired point to be the basepoint
and press ENTER.
5. Programming Time Period - The Time Period
is the time base used to set the duration (time) of
the moving window. The point does not become
valid until this time has elapsed.
a. Use the UP (↑) or DOWN (↓) Arrow Keys to
highlight "Time period" and press ENTER. The
display reads "minutes�XXXX�”.
b. Use the UP (↑) or DOWN (↓) Arrow Keys to
select the digit and the LEFT (�) or RIGHT (�)
Arrow Keys to move to a position to enter the
desired Time Period. A maximum 1440 minutes
(24 hours) may be entered. When the desired
Time Period is displayed, press ENTER and the
display returns to "Time Period".
6. Programming Engineering Units - Up to a
five character engineering units message may be
assigned for Calculated points.
a. Use the UP (↑) or DOWN (↓) Arrow Keys to
highlight “Eng units” and press ENTER.
b. Use the Alphanumeric keypad to enter the
desired Engineering Units message and press
ENTER.
7. Alarms - Refer to Alarms Setup in Paragraph
4.6.14 below for instructions on programming
alarms.
8. Assigning a Point to a Chart Scale - Each
point must be assigned to a Chart Scale.
a. Use the UP (↑) or DOWN (↓) Arrow Keys to
highlight “Chart scale” and press ENTER.
b. Use the UP (↑) or DOWN (↓) Arrow Keys to
select the Chart Scale numeral and press
ENTER. To leave the programming menu, press
EXIT until the “Command” prompt is displayed.
G. Gated Timer - The Gated Timer function
allows a timer, measuring in seconds, to be
controlled by a ‘gate’ from a logic point. For
example, if a point is measuring temperature and
you wanted to know the total amount of time the
temperature measured by this point is above or
below a certain level, a Conditional Point can be
programmed to be ‘true' only when the temperature
is above or below a set level. A Gated Timer Point
can then be programmed to be turned ON only
when the Conditional Point is in the true state. The
Gated Timer Point will then only be timing when the
temperature is above or below a set level. The timer
will continue to accumulate time, in seconds, each
time it is turned on. The Gated Timer Point can be
reset at programmable time intervals and alarms
can be set to alarm if the timer total goes above a
programmed time interval in seconds.
1. Programming Parameters - The following
steps detail programming from the Main Menu:
a. Use the UP (↑) or DOWN (↓) Arrow Keys to
highlight “Prog point” and press ENTER.
b. Use the numeric keypad to enter the point to
be programmed, 1 to 9 or A to C and press
ENTER.
c. Use the UP (↑) or DOWN (↓) Arrow Keys to
highlight the desired point option and press
ENTER.
d. Use the UP (↑) or DOWN (↓) Arrow Keys to
highlight “Calculated” and press ENTER.
e. Use the UP (↑) or DOWN (↓) Arrow Keys to
highlight “Gated timer” and press ENTER.
2. Programming Point Tag - Up to a ten character
alphanumeric label can be assigned to each
point.
a. Use the UP (↑) or DOWN (↓) Arrow Keys to
highlight “Point tag” and press ENTER.
b. Use the alphanumeric keypad to enter the
desired Point Tag and press ENTER.
Siemens AG C79000-G7374-C211-01
SIREC D Manual