Get (Group Execute Trigger); Dcl・Sdc; Handshake - Iwatsu VOAC760 Manual

Remote control manual

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2.6.5

GET (Group Execute Trigger)

This instrument starts measurement when the address command GET was received in which

measuring status is trigger wait status and the trigger source is BUS.

When the instrument receives the GET command, the NDAC signal is held to hold the handshake off

until the internal process (starting of measurement) is completed.

2.6.6

DCL・SDC

Upon receiving the universal command DCL (Instrument Clear), this instrument initializes the

instrument function. The same initialization occurs when this instrument is being set to "listener" and

receives the address command SDC (Selected Instrument Clear).

The DCL or SDC message shows that the following initialization is being executed.

 Data input/output is terminated, and the input buffers and the output queue are cleared. The

MAV bit of status byte register is also cleared. (As a result, the MSS bit may be affected by

these operations.) See section "3.3 Status report structure."

 If the instrument is performing the measurement, the measurement is stopped and the

instrument is put in the HOLD mode.

When this instrument receives the DCL or SDC interface message, the NDAC signal is held to hold

the handshake off until the internal microprocessor recognizes the signal receive.

2.6.7

If the delimiter or EOI reception detects the end of the message, interpretation of the command in the

buffer starts. During command interpretation or execution, the next message is not received. At the

beginning byte of the next message, handshake is held off. If command interpretation or execution

ends, handshake restarts.

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Voac7502