User guide

New Era Pump Systems Inc. www.SyringePump.com Model NE-500/NE-501 Multi-Phaser™
Publication #1200-02 40 09/18/14
9.2 TTL I/O Control from the Pumping Program
Various Pumping Program functions can define how the pump reacts to levels on the TTL I/O connector or set
output levels. These are summarized in the following table:
Pumping
Program
Function
TTL I/O Control Pin Pin # Action
FUN OUT <n> Program Output 5 Set logic level output to ‘n’
FUN EVN <nn> Event Trigger 4 Low level when executed or a falling edge afterward,
until canceled, causes a jump to Phase ‘nn’
FUN EVS <nn> Event Square wave
Trigger
4 Rising or falling edge triggers a jump to Phase 'nn'
FUN IF <nn> Program Input 6 Low level causes a jump to Phase ‘nn’
FUN PAS 00 Operational Trigger 2 Trigger activation resumes Program operation
The Following Program Functions refer to and only work with any of the Expansion Connector TTL pins:
Pumping Program
Function
FUN PRI Sub-Program Selection
FUN PRL Sub-Program Start Label
FUN OE0 Set pin low (0)
FUN OE1 Set pin high (1)
FUN EPL Pause Pumping Program and wait for edge or level trigger
FUN EPE Pause Pumping Program and wait for edge trigger
FUN EVE Set event trap
9.3 TTL I/O Control from RS-232
The logic levels of pins 2, 3, 4, and 6, plus the 5 Expansion Connector pins, can be queried from an attached
computer using the RS-232 ‘IN’ command.
The output logic level of pin 5, plus the 5 Expansion Connector pins, can be set with the RS-232 ‘OUT’
command
The expansion I/O connector on the PCB can be queried or set.