Agilent Technologies 54645A Manual de Instruções descarregar pdf (Página 82)

Histogram Event Register (HER)

Bit 0 (COMP) of the Histogram Event Register is set when the Histogram

completes. The Histogram completion criteria are set by the

HISTogram:RUNTil command. The Histogram Event Register is read and

cleared with the HER? query.

When the COMP bit is set, it in turn sets the HIST bit (bit 9) of the Operation

Status Register. Results from the Histogram Register can be masked by using

the HEEN command to set the Histogram Event Enable Register to the value

0. You enable the COMP bit by setting the mask value to 1.

Arm Event Register (ARM)

This register sets bit 5 (Wait Trig bit) in the Operation Status Register and

the OPER bit (bit 7) in the Status Byte Register when the instrument

becomes armed.

The ARM event register stays set until it is cleared by reading the register

with the AER? query or using the *CLS command. If your application needs

to detect multiple triggers, the ARM event register must be cleared after each

one.

If you are using the Service Request to interrupt a program or controller

operation when the trigger bit is set, then you must clear the event register

after each time it has been set.

Status Reporting

Histogram Event Register (HER)

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Agilent Technologies 54645A Manual de Instruções Página 82