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514067-UAD-A-0509
Johnson Controls Unitary Products 3
FLASH MEMORY MANAGEMENT
The Flash Memory chip used in the Simplicity
®
controllers has
a 1,000,000 write cycle rating.
To prevent premature failure of the flash memory, it should not
be written to more often than once every 10 minutes, on
average.
ADDITIONAL CAPABILITY
MODBUS COMMUNICATION ALARM
One digital point is available to indicate communication
problems between the Simplicity
®
LINC and the UP controller.
BI 84 (MODBUS_ALARM) is used to indicate Modbus
communication problems between the Simplicity
®
LINC
Gateway and the UP controller. When "on" this point indicates
loss of Modbus communication. The last data received from the
UP controller remains in the Simplicity
®
LINC and it continues to
function as if communications were normal.
NOTE: The MODBUS ALARM (BI84) is the only method to
verify communication between the Simplicity
®
LINC and
UP controller.
Under unusual circumstances it could take up to two
minutes for newly updated data to be seen.