Yokogawa DR240 - Manual (Page 177)

11-1 IM DR231-01E
Saving/Reading Measured, Computed and Set-up Data
11
11.1 Saving Measured and Computed Data
Procedure for Saving Data
When saving measured/computed data on a floppy disk, save them first on the DR recorder's
built-in RAM disk and then copy them to the floppy disk. You can save the data on the built-in
RAM disk in three ways, as summarized in the following table:
Menu Item Method for Starting Saving Number of Files Saved
DIRECT Immediately starts saving when the setting is complete. One
TRIGGER Starts saving when an event occurs as set using the One
event/action functions.
REPEAT Starts saving when an event occurs as set using the More than one*
event/action functions.
* The DR recorder continues to save an array of files of the specified size until the built-in RAM disk
becomes full.
Flow of Operation
The following paragraphs show the flow operation for a case where a measured data file is saved
using the occurrence of an alarm as a trigger.
1.Setting an Event/Action
Menu Item Setting
LOGIC in SET menu LOGIC BOX No.
EVENT=ALARM
ACT=EDGE/MEMORY : WR_TRIG
2. Selecting a Channel Whose Data Are Saved
Menu Item Setting
MEMORY in SET menu MEMORY=CH SET
001-01: CH SET=ON
(Allowed to set the consecutive numbers of channels)
3. Selecting a Method and Condition for Saving
Menu Item Setting
MEMORY in SET menu MEMORY=WRITE
WRITE=TRIGGER
WRITE file=
(File name: If new, press ENTER leaving the name blank.)
WRITE SAMPLE=
(Interval between file savings)
WRITE LENGTH=
(Size of file being saved)
WRITE PRE TRIG=
(Pre-trigger: not configurable if MEMORY=DIRECT)
4. Copying Files Saved on Built-in RAM Disk to Floppy Disk
Menu Item Setting
MEMORY in SET menu MEMORY=COPY
COPY MODE=TO FDD
COPY TYPE=DATA
COPY FILE=
(Name of file being copied)
COPY CONVERT=OFF
(Saved as binary-data file)
See the following pages for more information on how to configure these menu items.