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5 - Programming Overview
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After selftest is completed and there is dc voltage on the power bus, the instrument moves to the
CF_IDLE state. In this state the instrument is waiting and ready to start a cell forming sequence. The
instrument returns to the CF_IDLE state when a cell-forming sequence completes. Note that an Abort
function also places the instrument in the CF_IDLE state. A cell forming sequence can only be defined or
recalled from non-volatile memory when the Agilent MCCD is in the CF_IDLE state.
To begin running a sequence, the initiate function must be called. This causes the instrument to check the
sequence, and if it is executable, it begins erasing the memory that is used for the measurement log and
moves to the CF_ERASING state. The memory may take from 5 to 50 seconds to erase, after which the
instrument moves to the CF_INITIATED state. From here the instrument will start executing the
sequence when a trigger is received. The trigger source can be either the LAN or the digital I/O port.
When the sequence completes, the instrument returns to the CF_IDLE state, and the results can be read
from the instrument. Note, because the initiate function clears the measurement log, it must be read
before initiating the sequence again.
To query which state the instrument is in use:
cfGetRunState();
To check a sequence and move to the CF_INITIATED state use:
cfInitiate();
To start a sequence use:
cfTrigger(); or generate a trigger using a configured Digital I/O line
Set and query the trigger source use:
cfSetTrigSource();
cfGetTrigSource();
To query the time since the trigger occurred use:
cfGetSeqTime();
To abort a sequence and return to the CF_IDLE state use:
cfAbort();
Output Configuration
If specific outputs are not being used, you can program them to be inactive. Outputs that are configured
as inactive will remain in an off state and will not be included in the sequencing or status functions. They
will not be tested during selftest and will not get calibrated during instrument calibration. Measuring
inactive outputs will return the special value, CF_NOT_A_NUMBER..
To set and query the output configuration use:
cfSetOutputConfig();
cfGetOutputConfig();
NOTE: Active/inactive outputs settings that are programmed using cfSetOutputConfig() are
NOT saved in non-volatile memory. Each time the unit is powered up, you must
reprogram the output settings. However, the output settings that are programmed using
the Agilent MCCD User Interface ARE saved in non-volatile memory. The unit will
wake up with those settings when it powered up.