Emerson Network Router User Manual page 88

Configuring the Discrete Batch Application
Table B-4 Batch control assignments
Default
Function assignment
End discrete None
batch
Inhibit discrete
batch
Inhibit discrete
batch totalizer
Inhibit discrete
batch flow
Reset discrete
batch
Resume
discrete batch
Start discrete
batch
Stop discrete
batch
Increment
current batch
preset
Print screen
Inhibit Batch and Inhibit Totalizer processing
If the Inhibit Batch function is mapped to a discrete input:
• When that discrete input is in the active state:
- A batch cannot be started.
- A Start Not Okay alarm is posted if starting a batch is attempted.
• If the discrete input then becomes inactive, the batch does not start automatically.
• If a batch is already running when the discrete output becomes active, the batch is not affected.
82
Assignment options
Specify the method that will
be used to perform the batch
control function:
• None
• Discrete input 1
• Discrete input 2
• Discrete event 1
• Discrete event 2
• Discrete event 3
• Discrete event 4
• Discrete event 5
ON state actions
• Ends the batch.
• The batch cannot be resumed.
• The batch totalizer must be reset for the next
batch.
• Batch cannot be started.
• Inhibit batch is used for temporary lockout.
• Delivers the batch but does not totalize.
• Inhibit totalizer is used when process fluid is
recirculated.
• Delivers the batch but does not report flow rate.
• Inhibit flow is used when the flow cannot be
stopped, so that only the flow actually dispensed
is counted toward the batch.
• Resets batch total to zero.
• Batch reset cannot be performed while a batch is
running or while a batch is stopped. Before a
batch can be reset, the batch target must be
reached or the batch must be ended.
• The batch controller can be configured to reset
automatically on start. To configure Reset on
start, see Section B.3.2.
• Resumes a batch that has been stopped.
• Counting resumes from the total at which the
batch was stopped.
Starts the batch by opening the flow control valve(s)
and/or starting the pump.
• Stops the batch.
• The batch can be resumed if the batch total is
less than the batch target.
• If lockout target is disabled as a control option, the
operator can change the target before resuming.
• To enable or disable lockout target, see
Section B.3.2.
Selects next configured preset (as listed in the
preset menus) for use in the next batch.
The configured screen is sent to the printer (e.g.,
batch total).
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