Watlow EZ-ZONE RMA Modul - Manual (Page 45)

Watlow EZ-ZONE ® RMA Module • 42 • Chapter 6 Features
RTC is required to use this feature. As an example,
if the Power Off Time were set to 300 and the power
is lost while a profile is executing and then restored
before 5 minutes expires, the profile would continue
where it was at prior to the loss of power. If the pow-
er were to be restored after 300 seconds expires the
profile would be terminated.
Data Logging
The RMA module equipped (RMAX-XXXD-XXXX)
and configured for data logging is capable of record-
ing data points every second to every hour. This
setting (Period, [perd]) can be found in the Setup
Page under the Data Logging Menu. All recording
is stored to an SD card on the RMA module where
all data points must be from RM modules on the
same Inter-module Bus network. The RMA module
equipped with this feature is shipped with a 2 GB
card. If a user chose to use one of their own there is
no limitation with regards to the size of the SD card
that can be used.
Along with the setting for the frequency of the
writing activity there is another setting that the user
will set (Full Action, [f;act]) that determines how
the RMA module will react when the card becomes
full, as the name implies. When free memory is less
than 1 MB, the card is considered to be full. This set-
ting can also be found on the Setup Page under the
Data Logging Menu. There are two actions that can
be taken when this condition exists:
1. Stop
2. Overwrite - then delete oldest files first until an
additional 1.5 MB is available.
The file name and folder structure as it is stored to
the SD card is defined in the RMA firmware and can
be seen below. When the file number needs to incre-
ment, the current file shall be closed and the new
file will be opened. Conditions that can cause the file
number to increment:
• RMA module powers up
• RTC date changes
• File size reaches the maximum size of 1 MB
• Number of lines exceeds maximum number of
lines supported by Microsoft Excel
• Defined log points are changed
• USB mounts and dismounts the SD card
All files saved to the SD card are in comma delim-
ited format where they can be easily opened using
any software package capable of reading *.csv files,
such as Microsoft ® Excel. After data logging is com-
plete the SD card can be read via an SD card reader
or from the RMA module directly. To connect the PC
directly to the RMA module simply connect a mini-
USB cable to the RMA and a type B (for most com-
puters) USB cable to the PC.
Note:
All data logging will discontinue after a USB cable is
connected from the PC to the RMA module.
Once connected to the SD card, drill down to the
data files and simply open it up using your software
of choice to see the recorded data. The data below
was recorded from an RMC module (zone 8). The date
and time formats can be changed (Setup Menu, RTC
Menu) along with the precision of the data (Setup
Page, Log Point Menu).
Backup
The RMA module equipped with limited backup ca-
pabilities (RMAX-XXXA-XXXX) can backup no more
than 4 RM modules. It will do so from the lowest to
highest zone number. Because this option stores the
backup information for these modules in the on-board
memory of the RMA itself, there are some dependen-
cies that must be considered. All four modules will
be backed up if no more than 2 modules has profiling
capabilities. If there are more than 2 modules with
profiling the last module will not be backed up. If all
4 have profiling just 2 out of the 4 modules will be
backed up. If there is a need to backup all modules
the unlimited version must be used. The unlimited
version (RMAX-XXX[B,Y,D]-XXXX) stores all back-
up information to the SD card for all RM modules on
the Standard Bus network from the lowest to highest
zone number.
Note:
While performing a backup if the SD card runs out of
memory the backup will occur on zones up to the last
zone that fit on the SD Card. For this reason, it would
make sense to perform a backup of all RM modules
prior to data logging.
Restore
If the user sets Restore to Now, all modules that had
been previously backed up will be restored from the
lowest zone to the highest assuming zone address
and the part numbers are the same.
If the user sets Restore to Change, the RMA will re-
store all modules with a serial number change. For
this to occur the zone address and part numbers for
the swapped out modules must be identical to those
that had been previously backed up.