New Era NE-9000 Series Programmable Peristaltic - Manual (Page 37)

New Era Pump Systems Inc.
www.SyringePump.com
Model NE-9000
Publication #1200-04 29
If ‘nn’ is ‘00’ then the Pumping Program pauses and waits for a start trigger to resume the Program. The
display will show when waiting for a start trigger.
After the start trigger, the Program will resume with the next Phase. The start trigger can be from any
source, the ‘Start’/’Stop’ key, the TTL I/O Operational Trigger, or from RS-232. Any other key input will
stop and reset the Pumping Program.
If alarms are enabled, the buzzer will beep continuously while waiting for the start trigger.
11.3.12 '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.
11.3.13 '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) occurs on the TTL ‘Event Trigger’ input (pin 4).
2) A low level on the 'Event Trigger' input pin 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.
11.3.14 '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.
11.3.15 'Et:rS': Event Reset
’Event Reset’ cancels a previously set event trap by either the 'ES' or 'ET' function.
11.3.16 'OUt.n': Set TTL Output Pin
n
Set ‘Program Output’ TTL I/O output (pin 5) to level ‘n’. If ‘n’ = 0, the output pin will be
set low. If ‘n’ = 1, the output pin will be set high.