Solartron Mobrey 3595 4C, User Manual

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3595 4C User Manual Part Two IMP Commands
35952350 (CH01/AA)
1-17
CO
( CO ntinuous measurement)
CO
Note: This command does not apply to a type 1D IMP.
Function: Instructs an AR med IMP, upon receiving a TR igger, to continuously scan all channels and
return data.
An IMP can hold the measurement results of two complete scans in a pair of output buffers.
When continuous measurement starts, the IMP puts the result of the first scan in the first
buffer and then puts the results of the second scan in the second buffer. If the scan period is
set to 0ms (default value) and the PC is able to read the results of the first scan by the time
the second scan is complete, the results are placed in the first buffer. This sequence
continues and allows the IMP to continuously scan inputs, without waiting for scan data to be
read by the PC. If the scan period is defined, the start points of successive scans are
separated by this period. Also, if the PC is unable to read the scan data as fast as the IMP
provides it, the IMP ‘hangs’ whilst to PC catches up.
Note that Universal IMP type 1H and 1J do not ‘hang’ in the historical mode, but continues
scanning even when the output buffer is full. This is to allow the alarm inputs to continue to
be monitored. Until the PC reads the data from the buffer, the data presently stored is not
overwritten and the most recent results are discarded.
For more information in buffering, refer to part 1 of this manual.
Response: As TR igger, subsequent scans are loaded into the IMP output buffer as previous scans are
accepted by the PC.
See also: TR, AR, SP and RM
DI
( DI sarm)
DI
Note: This command does not apply to type 1D IMP devices.
Function: Cancels the AR m command.
Response: None.
See also: AR