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PUMP CHAIN COMMANDS
The Pump Chain commands allow all pump control
information to be managed from an external computer
source. These commands can also be used to control
a series of pumps (up to 100) from a single computer
interface.
KDS Legato 100 Series commands are communicated to
the pump via the USB port interfaces through a terminal
program such as HyperTerminal. In using the Pump
Chain commands, you will need to assign each pump
in the pump chain a unique address, using the Set Pump
Address command in the Settings menu. The address
range is from 00 to 99. This address value is used to
identify which pump is to receive a command and which
pump is responding. The first pump in the chain, the one
connected to the computer, must use address 0 (zero).
Configure each pump with its assigned address and baud
rate as described in the Pump Settings section of this guide.
✐
NOTE: Once communication is established,
if you manipulate the touchscreen, you must
reestablish communications to the PC
(<CR> will do this)
✐
NOTE: System commands and start/
stop commands can be executed from
program or mode configuration screens.
For parameter commands (rate, dia, vol,
etc) it is necessary to execute from the
Configuration Run screen.
✐
NOTE: To maximize communication speed
[as fast as 50 ms rate changes]: (a) prefix
commands with the @ symbol to turn off GUI
updates (ex: @irate 100 u/m) (b) use the
'NVRAM off' command to turn off writes of
rate to memory.
Pump Chain Commands
KDS Legato 100 commands are entered via the USB
port with a terminal program such as HyperTerm, or by
using a controlling computer.
Commands may be abbreviated to the first four letters,
i.e. address would be abbreviated addr. A space must
follow the command if arguments are included.
Every line of the response from a pump with a nonzero
address is prefixed by the two digit pump address (prefixed
with a 0 if necessary) followed by a colon. No colon is
used to separate the pump address from the prompt however.
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phone
info@kdscientific.com
e-mail
Operating the KDS Legato 100 Series
In the command list below, the following convention is used:
<prompt>
The following prompts are returned after a command is
executed:
If the pump is in poll mode, an XON character is added
after the prompt.
If the pump address is nonzero, the pump address is
prefixed to the prompt without a colon.
In the following list of commands:
The pump address is prefixed to every response line
followed by a colon.
<lf>[##]<prompt> is the response unless otherwise noted.
Error messages
Error messages are displayed if the entered command
cannot be executed for some reason. The error message
will take up two lines with the first line being the message
type and the second line describing the error itself. The
second line may be up to 80 characters long.
Command errors
Command errors are displayed when the command is
unrecognized, entered in the wrong mode, or the state of
the pump keeps the command from executing (i.e. using
the IRUN command if a limit switch is active).
The command error has the following format:
<lf>[##:]Command error:<cr>
<lf>[##:]<sp><sp><sp>{error message}<cr>
<lf>[##]<prompt>
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{ }
Required parameter
[ ]
Optional parameter
|
Separator between parameter choices
#
Numeric value without preceding zeros
###
Numeric value with preceding zeros
#-#
A range of values
<cr>
Carriage return
<lf>
Line feed
<sp>
Space
[prefix]
Pump address prefix in the format #: if the
pump address is not zero
Prompt (see below)
:
The pump is idle
>
The pump is infusing
<
The pump is withdrawing
*
The pump stalled
T*
The target was reached
KD Scientific Legato 100 Series Syringe Pump User's Manual
51
Publication 5617-006-REV-2.0
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