Solartron Mobrey 3595 4C, User Manual

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3595 4C User Manual Part Two IMP Commands
35952350 (CH01/AA)
1-51
AS
( A uto S tart)
AS n
Where: n = 0 = False – do not auto-start (default)
n = 1 = True – do auto-start
Function: When auto-start is set to true , the IMP automatically begins operations after a hard reset
(power-up or a hardware watchdog timeout).
After a hardware reset, and just before entering an idle loop, the IMP checks the value of n in
its’ non-volatile database. If n is true, the non-volatile database is restored to the database
proper, as if the RD command had been issued. A check is then made on the
CONTINUOUS_SCANNING Boolean variable: if this is true, a scan is triggered automatically;
if it is false, no further action is taken.
When auto-start is set to false , no action is taken.
Example: A typical AS command sequence is:
1.
SE (set-up the IMP to default mode)
2.
CO (set continuous triggering)
3.
AS1 (set auto-start to true)
4.
SD (save settings in non-volatile memory)
These commands prepare an IMP to respond to a hard reset by restoring its’ database amd
issuing a trigger command to itself.
RM
( R esult M ode)
RM n
Where: n = 0 = Real-time mode (default)
n = 1 = Real-time mode with time-tagging. (See page 1-45)
n = 2 = All results returned in Stream 2 (historical)
Function: Mode 0 outputs data on Stream 0 in the same format as for all IMP devices. Mode 1 outputs
the same data but with a time-tag. Mode 2 outputs historical data on Stream 2 and allows all
960 buffers to be used. Each buffer holds a scan of 20 channels. If, for example, the scan
period is set to 10s with the SP command, the 960 buffers will be filled in 9,600 seconds
(= 2hrs 40mins).
Historical mode buffering operates on a first-in, first-out basis (FIFO). If the IMP is measuring
faster than the PC can read results, the results are stacked in the FIFO buffer (queue). When
the buffer is full, the IMP continues measuring so that it can monitor alarm inputs, but does
not store new results in the buffer until space becomes available.