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The optional Data Recorder allows the recording of pro-
cess conditions to memory over time. It operates inde-
pendently from the Trend Views. The recorder includes
1Mb of flash memory to store data when powered down
and a real time clock (RTC) with a battery backup.
Servicing of the Data Recorder/RTC circuit and
replacement of the internal lithium battery should
be carried out by only a trained technician.
Recordable Values
A selection of values can be recorded for each control
loop, from: Process Variable; Maximum or Minimum
Process Values (since the previous sample); Setpoints;
Primary Power, Secondary Power or Auxiliary Input
values. Additionally the status of Alarms and Profiler
Events can be recorded, as can when the unit is turned
On/Off. See the Recorder Configuration sub-menu.
Sampling rates between 1 second and 30 minutes are
possible, with the data either recorded until all memory
is used, or with a continuous “First In/First Out” buffer
overwriting the oldest data when full.
The recording capacity is dependent on sample rate
and number of values recorded. For example: Two ana-
logue values will recorded for 21 days at 30s intervals.
More values or faster sample rates reduce the duration
proportionally.
Note:
If recorded, each alarm/event change forces an
extra sample to be recorded, reducing the remaining
recording time available. If these are likely to change
often, take this into account when determining if there
is sufficient memory available.
Recorder Control and Status
Options for starting/stopping recordings include Manually
(from the recorder menu or a screen added to operation
mode); a Digital Input; during a Running Profile; or Record
on Alarm. See the Recorder Configuration sub-menu.
The recorder control menu allows the manual trigger to
be started or stopped, as well as deleting recorded data
from memory.
A status screen is shown with current information about
the recorder, including if a recording is in progress (Re-
cording or Stopped); the recording mode (FIFO or Record
Until Memory Is Used); a % memory use bar-graph and
the estimated available time remaining based on the data
selected and memory used.
Manual
Record
Digital
Input
Profile
Record
Alarm
Record
These icons are displayed for each active recording trigger.
Recorder status and manual record trigger control can
optionally be added to Operation Mode. This is enabled
or disabled in the Display Configuration sub-menu.
Note:
The recorder control screens allow the manual
trigger to be started or stopped, but recording will
continue as long as any trigger that has been config-
ured is active.
Uploading Data
Recordings can be transferred to a memory stick using
the USB Port. They can also be uploaded directly to the
PC software via the configuration port or RS485/Ethernet
communications if fitted.
The data is stored in Comma Separated format (.csv)
which can be opened and analysed with the optional PC
software or opened directly into a spreadsheet. Many
third party software programs can also import data in the
.csv format.
The file contains a header identifying the source instru-
ments serial number, the date of the file upload and de-
scriptions of the data columns.
The data columns seen depends on the data selected to
record, but will always include the date and time of each
sample. The date format follows the instrument date for-
mat selection. Date(en) is dd/mm/yyyy, and Date (us) is
mm/dd/yyyy.
Note:
Analysis with the PC software is limited to 8 ana-
logue channels, so only the first 8 will be displayed.
The number of recorded alarms & events is not limited.
Additional Features & Benefits from
the Recorder
The real time clock (RTC) included with the data recorder
also expands the profiling capabilities (see Profiler) and
allows a “calibration due” reminder to be shown at a
specified date (see the Input Configuration sub-menu).
18 Data Recorder
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