Memoq MR-720 Uživatelský manuál stáhnout pdf (Strana 45)

OPERATION

2-22

Option 01: GPIB/Handler Interface

GPIB Interface:

Detailed information on the GPIB interface and programming examples are available in the remote

programming section.

Handler Interface:

Introduction

The handler interface for the SR720/715 allows the unit to be operated with external hardware to measure and

physically sort components. Data lines for ten sorting bins are provided, as well as control lines (-START, -

BUSY, -BDA) to coordinate measurements. For more information on bin setup procedures and options, refer

to the binning section.

Timing Diagram:

(a) The SR720/715 is waiting for a trigger to start measuring. Previous bin data (if any) is still available.

(b) A negative-going pulse on the -START line will trigger a reading. The -BUSY line will go low and stay

low until the measurement is completed.

the -BDA (Bin Data Available) line is activated to prevent reading invalid data.

After the proper bin location has been selected, the -BDA line will go high, and the appropriate bin line

will be pulled low (only a single bin line will be low at any one time). The external handler can now remove the

component, place it in the specified location, and insert a new one into the fixture. The SR720/715 is now

again in state (a).

Note: some handlers can be instructed to remove the component under test to the sorting area as soon as the

-BUSY line goes high.

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Memoq MR-720 Uživatelský manuál Strana 45