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SECTION 34 - DIAGNOSTICS AND TROUBLESHOOTING
FORM 160.54-M1
ISSUE DATE: 10/25/2019
JOHNSON CONTROLS
JCI COMPANY CONFIDENTIAL
34
SERIAL/SD SCREEN
FIGURE 107 -
SERIAL/SD SCREEN
LD22791
This screen shows the SD card status and enables Sys-
tem Backup & Restore along with data logging.
BUTTONS
Data Logging –
Four modes are available:
•
Disabled
•
Serial –
data logs to the printer port
•
SD –
data logs to an SD card (Any size is sup-
ported)
•
Serial/SD –
data logs to both the printer port and
the SD
Logging Interval –
Adjustable from 0.1 to 60 seconds.
SD Logging Overwrite –
Two modes are available:
•
Disabled –
Will stop logging to the SD card when
it is full.
•
Enabled –
Will Overwrite the oldest day file with
the present day log information. The SD Data log
creates a file for each day. This file is in .csv for
-
mat and can be read by Microsoft Excel where the
chiller operating parameters can be analyzed and
plotted.
See
Table 33 - Data Logging on page 378
the chiller parameters that are data logged.
Eject SD Card –
Pressing this button before remov-
ing the SD card prevents it from being corrupted which
could happen if the card is removed during a write
event and this button was not pressed.
NOTE:
System Backup and Restore buttons are only
visible when Data logging is Disabled. System Backup
allows all of the chiller parameters to be saved to an SD
card and Restored to a replacement microboard. This is
equivalent to swapping the BRAM chip in the 02430
microboard.
System Backup –
When pressed, saves the current
chiller parameters to the SD card. A portion of a blank
SD card is reserved for this data and the rest of the
card can be used for Data logging. When Data logging
is turned on, the chiller parameters are automatically
saved to the SD card at midnight each day.
System Restore –
When pressed, writes the parameters
that were saved on the SD card back to the microboard
NOVRAM memory.
NAVIGATION
Home –
Returns to the Home screen
Diagnostics –
Navigates to the Diagnostic screen
