New Era NE-4000 Multi-Phaser Programmable Double Syringe - Manual (Page 27)

New Era Pump Systems Inc.
www.SyringePump.com
Model NE-4000 Multi-Phaser™
Publication #1200-01 22 09/05/14
8.3.13 'IF:nn': Jump to Phase If External Trigger
nn
The ‘IF’ function conditionally alters the Pumping Program’s execution based on an external signal.
When executed, if the TTL I/O Program Input pin (pin 6) is low level, then the Pumping Program continues
operation with Phase number ‘nn’. Otherwise, the Pumping Program continues operation with the next Phase.
8.3.14 'Et:nn': Setup Event Trigger Jump Phase
nn
The ‘Event’ function sets a background event trap that is triggered by an external signal.
This one time background trap, or interrupt, stays set during the Pumping Program’s entire execution until it is
triggered, redefined, or reset. This function has no other effect on the operation of the pump until it is triggered.
The event is triggered with either:
1) A falling edge (high to low TTL transition) on the TTL ‘Event Trigger’ input (pin 4).
2) A low level on the 'Event Trigger' input pin of at least 200 ms at the time the function is executed.
3) The RS-232 ‘RUN E’ command.
When triggered, the current operation of the pump and the Pumping Program is interrupted, and the Pumping
Program immediately continues operation (jumps to) with Phase number ‘nn’.
After being triggered, the event trigger is reset. If an event trigger function is executed (either 'Et' or ES' function)
while another event trap is still set, the new event trigger will replace the previous event trap. Only one event can
be defined at any time.
8.3.15 'ES:nn': Setup Event Square Wave Trigger Jump Phase
nn
The 'Event Square Wave' function operates the same as the 'ET' 'Event' function, with the exception of
the triggering conditions.
The event is triggered with either:
1) The rising or falling edge of the TTL ‘Event Trigger’ input (pin 4).
2) The RS-232 ‘RUN E’ command.
Therefore, a square wave function on the inupt pin can be used to toggle the pump between 2 sections of a
Pumping Program. An example of this would be a Pumping Program that switched between a slow and fast
pumping rate, controlled by a square wave input.
8.3.16 'Et:rS': Event Reset
’Event Reset’ cancels a previously set event trap by either the 'ES' or 'ET' function.
8.3.17 ‘CLr.d’: Clear Total Volume Dispensed
Sets the total volume dispensed to 0. Both infusion and withdraw volumes are reset.
8.3.18 ‘tr:aa’: Override Operational Trigger Configuration
aa
Sets the Operational Trigger (pin 2) to mode ‘aa’, overriding the default setup Operational Trigger
Configuration. See Sec. 7.4, ‘TTL I/O Operational Trigger Default Configuration’, for the settings for parameter
‘aa’. The default setting for the Operational Trigger is always used to start the Pumping Program.
8.3.18.1 Trigger Event-Trap
‘Button Trigger Event Trap’ redirects a press of the ‘Stop’ key to the background event trap.
‘Trigger Event Trap’ redirects a stop pump Operational Trigger to the background event trap.
Instead of stopping the pump, an event defined by the ‘Event’ or ‘Event Square Wave’ function will be triggered,
causing the Pumping Program to continue execution at the Phase number defined in the Event function.
If an Event Trap has not been defined, then the Pumping Program continues execution at the next program phase.
This is useful if the pump is executing a continuous infusion phase. The pump can continue to infuse until a foot
swtich is pressed. The pumping prgram can then jump to a different phase, such as a withdraw phase, then stop
the pump.