WPI UltraMicroPump II Instruction Manual page 21

TROUBLESHOOTING RS232 Commands
The correct format in relation with a specific command sent is as follows:
there is no set sequence to follow when issuing commands, but for logical
programming purposes, follow the following sequence: l1;iV100.0;c0.0;r200.0;st
Fn
note there are no spaces, line feeds or enters (carriage returns). the cr does not
interfere.
the V, r and c parameters require a "." (decimal point) and the character ";"
(semi-colon) to be entered.
You should immediately see a response on the umc4 display from each entry as it
is entered.
the cursor channel indicator (the l#; command) must be on the pump channel
that is being run. if the cursor is elsewhere, then the command will not function on
other channels unless the grouping is turned on (G last column).
Format of the V volume command
the character field of V is a maximum of five numerals; a 6th character can be the
period (.) there is no requirement for a zero to the right of the decimal point. one
could enter V12345.; and see the result echo by typing ?V and getting 12345 on
the display. the channel selected will show 12345 on the umc4 display as soon as
the ";" character is typed.
Format of the R rate command
the character field of r is a maximum of four numerals; a 5th character can be the
decimal point (.). You cannot override the maximum number for the syringe type.
example: type A is a 0.5 µl syringe and has a maximum rate of 20 nl/sec. typing
in a greater number will still give you the maximum rate of 20 nl/sec.
World Precision instruments
?M returns a G for grouped mode, n for nongrouped mode, and d for
disabled mode.
?S
returns the letter of the syringe type.
?D returns the syringe pump direction: i=infuse, W=Withdraw.
?U returns the rate units: s=nl/second, m=nl/minute.
?G returns a r if pump is running, s if pump is stopped.
UltraMicroPump II
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