Yokogawa 414 Batch Controller - Manual (Page 18)

16 Operation
3.2.3 End of Batch
An End of Batch is defined as being when the Batch Quantity is reached, the flow
has stopped and the Signal Timeout period has expired.
If the Signal Timeout is set to zero, the End of Batch is defined as being when the
Batch Quantity is reached, regardless of whether the flow has stopped.
The Batch Controller cannot be reset or restarted until the End of Batch and
similarly, for an RS232/422/485 interface, data will not be output until the End of
Batch has been determined. Consequently, it is strongly recommended that the
Signal Timeout period be kept fairly short.
End of Batch Signal
An End of Batch signal from an open collector transistor is output on terminal 30,
if this terminal has been assigned as an End of Batch Signal, and the output is
identical to the Output Pulse circuit as shown in Section 3.5.
When reaching the End of Batch, the output transistor is switched on, and will
remain in the "on" state until the instrument is reset.
Signal
End of
Batch
End of
Batch
(Timeout = 0)
Batch Quantity
Reached
Reset
Signal Timeout