Yokogawa DR240 - Manual (Page 60)

6-6 IM DR231-11E
• The display modes are as follows:
Auto
Displays a channel after automatically
selecting a channel.
Manual
Can freely change the channel to be displayed.
Alarm search
Displays measured data in the channel in
which an alarm occurs in turn.
Bargraph
Displays measured data using a bargraph.
Alarm status
Displays alarm statuses in up to 30 channels.
Relay status
Displays statuses of up to 30 alarm output
relays.
LD Changes the display mode on the
lower part of the display.
Mode Operation mode
Setting LDp1, p2, p3<terminator>
p1 Display mode
0: Auto
1: Manual
3: Alarm search
5: Alarm status
6: Relay status
7: Date and time
p2 Display channel number (001 to 560)
If p1 is the relay status, internal switches
(S01 to S60) can be set.
If p1 is in the manual mode or alarm status,
and the optional computational functions or
floppy disk drive functions are provided, or
if a pulse module is installed, the
computational channel (A01 to A60) can be
set.
p3 Display channel number (001 to 560)
Example Display the measured value of channel numbers 1
and 3 in slot 2 of subunit 2 in manual mode.
LD1, 221,223
Comments • The LD command is ineffective if the display
mode for the upper part is “page.”
• If p1 is manual, set a channel to be displayed on
the left side of the display with p2 and a channel
to be displayed on the right side of the display
with p3.
• p2 is effective when p1 is Manual, Alarm status or
Relay status.
• p3 is effective when p1 is Manual.
• The display mode is the same as that for the
middle part.
XW Set the switching time for the
displayed channel in auto display.
Mode Setup mode
Setting XWp1<terminator>
p1 Switching time for the displayed channel
2, 3, 4, or 5 (seconds)
Example Set the display switching time to 5 seconds.
XW5
Comments • Sets the display switching time when the display
modes atthe upper, middle, and lower parts are
Auto. This is common to the upper,middle or
lower parts.
6.4 Setting the Recording
SC Sets the chart speed.
Mode Operation mode
Setting SCp1<terminator>
p1 Paper feed speed (1 to 1500 mm/h)
Example Set the paper feed speed to 100 mm/h.
SC100
SE Sets the second chart speed.
Mode Operation mode
Setting SEp1<terminator>
p1 Chart speed (1 to 1500 mm/h)
p2 ABSOLUTE: Absolute time
RELATIVE: Relative time
p3 Time interval
For ABSOLUTE
1 min, 2 min, 3 min, 4 min, 5 min, 6 min, 10
min, 12 min, 15 min, 20 min, 30 min, 1 h, 2
h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h
For RELATIVE,
Fixed to 8 characters
DD HH:MM
DD: Day
HH: Hour
MM: Minute
p4 Reference time (fixed to 5 characters)
HH:MM
HH: Hour
MM: Minute
Example Set the second chart speed to 50 mm/h and set timer
to intervals of 15 minutes each starting at 15:15..
SE50, ABSOLUTE, 15 min, 15:15
Comments • p4 is effective when p2 is ABSOLUTE.
• In ABSOLUTE, the time interval set with p3 is
used from the time set with p4.
• In RELATIVE, the time interval set with p3 is
used from the time when the timer setting is
completed, the power is turned on, or the set timer
is executed.
SS Selects the trend records/logging
records (digital value).
Mode Operation mode
Setting SSp1, p2<terminator>
p1 TREND (analog trend record)
LOGGING (logging record)
p2 Dot printing period
AUTO (automatic selection)
FIX
Example Change the dot printing period to AUTO in trend
recording.
SSTREND, AUTO
Comments • p2 (dot printing period) is effective when p1 is
TREND.
• If the dot printing period is set to AUTO, the dot
printing period is automatically changed according
to the recording conditions.
• If the dot printing period is set to FIX, the dot
printing period is the same as the measuring
period. However, if the measuring period is 2
seconds or less, the dot printing period is fixed to
2 seconds.
6.4 Setting the Recording