Solartron Mobrey 3595 4C, User Manual

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IMP Commands 3595 4C User Manual Part Two
1-20
35952350 (CH01/AA)
SA
( SA ve set-up)
SA s
Where: s is the database:
•
1, 2 or 3 for IMP types 1A, 1B, 1C, 1E, 2A and 2B, and
•
1, 2, 3, …, 7 for the Universal IMP (UIMP) types 1H and 1J.
Note: This command does not apply to type 1D IMP devices.
Function: On IMP types other than the 1H and 1J, the set-up data (mode, strain gauge data, etc.) is
stored in one of three databases in the IMP.
Database 1 contains the set-up data selected by the AR , CO , UN , DR , KA , AM , FR , and TE
commands. Database 2 contains the set-up data for individual channels mode, strain gauge
values, etc. Database 3 contains the scan period defined by the SP command.
(Note that when the scan period is loaded by the IO command, with the IMP in continuous
scanning mode, the new scan period takes effect from the beginning of the next scan.)
On the 1H and 1J Universal IMP, the set-up data is stored in seven databases. This is
described in Appendix A of Part 2.
SA instructs the IMP to transmit this data to the PC. The complete output buffer capability of
the IMP is needed to transmit this data. Therefore, the user must ensure that no data is
waiting (for transmission) at the IMP. In addition, if two
SA commands are sent in quick
succession, the IMP may ignore the second one due to shortage of buffer space. This
problem can be overcome by putting another command, for example STATUS, between the
two
SA commands.
If the IMP is powered-down, it loses the contents of the databases. The LO ad command, in
conjunction with previously SA ved data, allows set-up data to be quickly reloaded into an IMP
database.
The general procedure for storing and loading an IMP database is:
1.
Stop all measurements in progress by the IMP
2.
Read all data available
3.
Send a SA command
4.
Store the next stream 0 response from the IMP
5.
Repeat steps 3 and 4 for each database to be saved
6.
Power-down and, if required, disconnect the IMP
7.
Power-up and, if required, reconnect the IMP
8.
Send the following string to the IMP: ‘LO n ’ + bytes originally returned by SA n command
9.
Repeat step 8 for each database to be loaded into the IMP.
Response: Stream 0, n bytes of data.
See also: SD and RD .