Agilent Technologies 8164A Manual De Usuario

Introduction to Programming

The Status Model

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

Status System for 8166A/B

The status system for the Agilent 8166A/B Lightwave Multichannel
System returns the status of 17 module slots. The
Operational/Questionable Status Summary Registers consists of two
levels, as described by Figure 5 .

Module slots 1 to 14 affect the Level 0 summary register as described in
Figure 4 . Bit 0 of the Level 0 summary registers represents the summary
of the status of module slots 15, 16, and 17. The Level 1 summary registers
contain an individual summary for each of these module slots.

Figure 5 The Operational/Questionable Status System for 8166A/B

Operational/Questionable Status

Condition Summary Register (Level 0)

Event Summary Register (Level 0)

Enable Summary Mask
Register (Level 0)

Status Byte

Status Byte Register

Status
Summary

to next

level

to next

Operational/Questionable

Slot Status Condition

Slot Status Event

Slot Status Enable Mask

level

to next

for a positive

level

Status
Summary

Slot 15

transition

for a positive

transition

for a positive

transition

Operational/Questionable Status

Condition Summary Register (Level 1)

Event Summary Register (Level 1)

Enable Summary Mask

for Level 1

for Level 0