Next Advance SP570-M - Manual (Page 31)

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SP500 series OEM Programmable Syringe Pump
NE500 series manual 26 Revision 101101
such as after a power failure when both the computer and the pump were reset. In this case, the pump will
most likely send its reset alarm message before the computer has finished booting.
8.5 RS-232 Command Set
All data changed from RS-232 is stored in the non-volatile memory, except for changes to the pumping
rate while pumping. All “Program Phase Data” refers to the currently selected Program Phase. Use the
Phase select command (‘PHN’) to query or select the current Phase. A Phase consists of the pumping rate,
‘Volume to be Dispensed’, and the pumping direction.
A packet without a command is interpreted as a status query. The addressed pump responds with a status
only response packet.
Except where noted, a command without any parameters is a query command. The response packet data
will include the requested data. In general, the query response data will be in the same format as the
parameters for setting the command. For example, the query diameter command ‘DIA’ will respond with
‘<float>‘ as the response ‘<data>‘.
Otherwise, the command is a set command. If the data was set, a status only response packet will be sent.
If the data was not set, the response packet will include an error (<command error>) message indicating
why the data was not set.
All commands are upper case, but in Basic Mode, will be accepted as lower case, plus spaces and control
characters will be ignored. This facilitates manually entering commands using a terminal emulator.
<command> =>
DIAMETER
DIA [ <float> ]
Set/query inside diameter of syringe. Set is only valid when the Pumping Program is not
operating. Setting the syringe diameter also sets the units for “Volume to be Dispensed” and
“Volume Dispensed”.
8.5.1 Program Function Commands
The following commands are relevant to the currently select Program Phase. Note: During a Pumping
Program’s operation, the currently selected Phase can change automatically.
PHASE NUMBER
PHN [ <phase data> ]
Set/query currently selected Program Phase:
Set:
Currently selected Phase is set to <phase data>. Previous Phase is stored in non-volatile memory
and the requested Phase is recalled from the non-volatile memory. Set is only valid if the
Pumping Program is not operating.
Query response:
<phase data> Currently selected Phase.
PUMPING PROGRAM FUNCTION
FUN [ <phase function> ]
Set/query the Pumping Program Phase’s function.
This command is relevant to the currently selected Phase. Set is only valid if the Pumping
Program is not operating
For a more detailed description of Program commands, see sec. 7.3, Program Function
Descriptions.