Fluke 45 Manuale Utente Scaricare il pdf (Pagina 68)

Operating the Meter Using the Computer Interface

How the Meter Processes Input

5-9

• RULE 2: READ QUERY RESPONSES BEFORE SENDING ANOTHER

COMMAND STRING.

Output data remains available in the output buffer until it is read by the host or until

the next command string is received by the meter. This means the meters output

buffer must be read by the host before, rather than after, the next command string is

sent to the meter.

• RULE 3: THE METER EXECUTES EACH COMMAND COMPLETELY, IN THE

ORDER RECEIVED, BEFORE MOVING ON TO THE NEXT

COMMAND.

If an input string contains a trigger, enter the commands in the following order, that

is, from left to right, as written:

1. Commands to configure the meter (if any).

2. The trigger command.

3. Commands to read the result of a triggered measurement (VAL?), or to recon-

figure the instrument (if any).

4. The terminator.

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Fluke 45 Manuale Utente Pagina 68