KD Scientific Legato 200 Series User Manual
Page 65
65
Operating the KDS Legato 200 Series
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KD Scientific Legato 200 Series Syringe Pump User’s Manual
Publication 5617-002-REV-E
Digital I/O commands
INPUT
Reads and displays the trigger input port status.
Command format:
input
Query response:
or:
OUTPUT
Sets the level on one of the output ports.
Command format:
output {1|2} {high|low}
SYNC
Sets the level on the sync port.
Command format:
sync {high|low}
Internal commands
STATUS
Displays the raw status for use with a controlling
computer.
Command format:
status
The output is in three integer fields and one flag field, all
separated by spaces and terminated by a carriage
return / linefeed pair. The first integer is the current rate
in femtoliters per second. The second integer is the infuse
time in milliseconds. The time has a granularity of 1
millisecond. The third integer is the infused volume in
femtoliters. All three values are for the current direction.
The flag field consists of six flags.
•
Flag one is the motor direction and will be “i or I”
if the pump is infusing and “w or W” if the pump is
withdrawing. If the letter is lower case, the pump
motor is idle. If upper case, the pump motor is
running.
•
Flag two is the limit switch status. If the infuse limit
switch was hit, “i or I” is displayed. If the
withdraw limit switch was hit, “w or W” is
displayed. If no limit switch was hit or the pump
does not have limit switches, “.” Is displayed.
•
Flag three is the stall status and will be “S” if the
pump has stalled. Otherwise it will be “.”.
•
Flag four is the trigger input state and will be “T”
if high and “.” if low.
•
Flag five is the direction port state and will be “i or
I”for infuse and “w or W” for withdraw.
•
Flag six is the target reached status. It will be “T”
if the target time or volume was reached and “.”
if not.