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Operation Using
a Programmable Logic Controller (PLC)
Alarm Clearing Sequence
NO
Clear Active Alarm
Write ‘1’ to Input Register 08
NOTE: If an alarm condition is
active the System Mode will either
be Pump Off or Standby: Alarm.
(Output Register 00 = ‘1’ or ‘14’)
No action taken.
Clear active alarm.
Clear most recent active
alarm.
Remaining alarm(s) still
active.
Is there an active
alarm?
Is there more than 1
active alarm?
YES
YES
NO
NOTE: If more than 1 active
alarm exists a repeated write
of ‘1’ to Input Register 08 is
required for each.
46 332564B