Operation Using a Programmable Logic Controller (PLC)
Inactive
Inactive
Inactive Pump
Pump
Pump Flush
Flush
Flush and
and
and Prime
Prime
Prime Sequences
Sequences
Sequences
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
Write Flush Sequence #
(1-10) to Input Register 05
Write
Flush Pump Command
(1,3,5,7) to Input Register 06
Write
Prime Pump Command
(2,4,6,8) to Input Register 06
Is requested pump
status* = Standby?
(Output Register* = ‘1’)
Pump is flushed using
assigned sequence number
.
Pump Status = Flushing
(Output Register* = ‘3’)
Pump is primed using
assigned material.
Pump Status = Priming
(Output Register* = ‘4’)
Pump is either Off or Busy
(Output Register* = ‘0’ or ‘2’)
Busy refers to a pump that is
currently involved in a mixing
operation. No action taken.
NOTE: Be sure to read to
appropriate Output Register*
for the desired pump status:
Register 25 - Pump 1
Register 26 - Pump 2
Register 27 - Pump 3
Register 28 - Pump 4
Is requested pump
status* = Standby?
(Output Register* = ‘1’)
Is selected material valid
for requested pump?
Invalid request.
No action taken.
Write Prime Material #
(1-54) to Input Register 05
Is Flush complete?
Is Prime complete?
Pump is returned to Standby
.
Pump Status = Standby
(Output Register* = ‘1’)
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