Introduction to Programming

The Status Model

The Operational/Questionable Slot Status Event Register (OSSER/QSSER) contains the status of a particular module slot. A bit changes from 0 → 1 when an event occurs, for example, when a laser is switched on. For details of the function of each bit of these registers, see “Operation/Questionable Status Summary Register” on page 38.

The Operational/Questionable Slot Enable Status Mask (OSESM/QSESM) allows you to choose the events for each module slot that may affect the Operational/Questionable Status Event Register (see below). If you set a bit of the OSESM/QSESM to zero, the occurence of the corresponding event for this particular module slot cannot affect the Operational/Questionable Status Event Register. The default is for all the bits of the OSESM/QSESM to be set to 0.

The Operational/Questionable Status Event Summary Register (OSESR/QSESR) summarizes the status of every module slot of your instrument. If, for any slot, any bit of the QSSER goes from 0 → 1 AND the corresponding bit of the QSSEM is 1 at the same time, the QSESR bit representing that slot is set to 1.

The Operational/Questionable Status Enable Summary Mask (OSESM/QSESM) allows you to choose the module slots that may affect the OSB/QSB of the Status Byte. If any bit of the QSESR goes from 0 → 1 AND the corresponding bit of the QSESM is 1 at the same time, the QSB of the Status Byte is set to 1. If you set a bit of the OSESM/QSESM to zero, the corresponding module slot cannot affect the OSB/QSB. The default is for all the bits of the OSESM/QSESM to be set to 0.

The Operational/Questionable Status Enable Summary Mask for the Agilent 8163A/B Lightwave Multimeter and the Agilent 8164A/B Lightwave Measurement System consists of one level. These are described in “Status System for 8163A/B & 8164A/B” on page 35.

As the Agilent 8166A/B Lightwave Multichannel System has 17 module slots, the Operational/Questionable Status Enable Summary Mask consists of two levels. This is described in “Status System for 8166A/B” on page 36.

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Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Fifth Edition

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Agilent Technologies 8163A, B, 8166A, 8164A manual Status Model
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8163A, 8164A, 8166A, B specifications

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