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26
Programmable Option– RS232 Commands and Responses
All commands and responses in standard pumps remain the same, however, the program
mode does have additional commands and responses.
Each pump can be controlled either from the keypad or via RS232 at all times, but the pump
can only respond to one command at a time. When under RS232 control the display reads
“REMOTE”. All settings made via RS232 are stored in non-volatile memory.
To move the pump from Remote (RS232) to keypad control press
select
.
Changes to program parameters cannot be made when the pump is running therefore
parameter setting commands, such as, step, travel, rate etc. are not applicable [NA] when
the program is running.
When the pump is running all queries are disallowed except activestep?, timeleft?, and
loops?
Commands are not case sensitive
After each command is received and executed the pump responds with prompt sequence:
a)
Query commands:
carriage return (<CR>)line feed, text, <CR>, line feed, 1 or 2 digit address,
prompt character
b)
Other commands:
<CR>, line feed, 1 or 2 digit address, prompt character
Prompts
>
running in infusion direction
<
withdrawing
:
stopped
NA
not applicable
E
error (see error? command)
P
pump is paused
carriage return <CR>
All pumps chain interpret this as a stop command
pump address, <CR>
Pump with the specified address responds with a prompt
pump address (optional),
Pump at the address executes the command and
command, <CR>
then responds with a prompt.
Note:
If there are multiple pumps in the daisy chain and a pump address is not used then
all pumps will respond to the non-specific command and return prompts. Multiple prompts
results in a communications breakdown.
Note that withdrawal and continuous mode commands are recognised only by the
infusion/withdrawal models.
Cole-Parmer
®
Dual & Multiple Syringe Pump
