Programming the Status Register System

Status Groups

Data Questionable Modulation Condition Register

The Data Questionable Modulation Condition Register continuously monitors the hardware and firmware status of the signal generator. Condition registers are read- only.

Table 4-10 Data Questionable Modulation Condition Register Bits

Bit

Description

 

 

 

0

Modulation 1 Undermod. A 1 in this bit position indicates that the External 1 input, ac coupling on, is less than

 

0.97

volts.

 

 

 

1

Modulation 1 Overmod. A 1 in this bit position indicates that the External 1 input, ac coupling on, is more than

 

1.03

volts.

 

 

 

2

Modulation 2 Undermod. A 1 in this bit position indicates that the External 2 input, ac coupling on, is less than

 

0.97

volts.

 

 

 

3

Modulation 2 Overmod. A 1 in this bit position indicates that the External 2 input, ac coupling on, is more than

 

1.03

volts.

 

 

 

4

Modulation Uncalibrated. A 1 in this bit position indicates that modulation is uncalibrated.

 

 

5−14

Unused. This bit is always set to 0.

 

 

 

15

Always 0.

 

 

 

 

 

 

Query:

 

STATus:QUEStionable:MODulation:CONDition?

 

Response:

The decimal sum of the bits set to 1

Data Questionable Modulation Transition Filters (negative and positive)

The Data Questionable Modulation Transition Filters specify which type of bit state changes in the condition register set corresponding bits in the event register. Changes can be positive (0 to 1) or negative (1 to 0).

Commands:

STATus:QUEStionable:MODulation:NTRansition <value> (negative transition), or

 

STATus:QUEStionable:MODulation:PTRansition <value> (positive transition), where <value> is the sum of the decimal values of the bits you want to enable.

Queries: STATus:QUEStionable:MODulation:NTRansition?

STATus:QUEStionable:MODulation:PTRansition?

Data Questionable Modulation Event Register

The Data Questionable Modulation Event Register latches transition events from the condition register as specified by the transition filters. Event registers are destructive read- only. Reading data from an event register clears the content of that register.

Query: STATus:QUEStionable:MODulation[:EVENt]?

Agilent N518xA, E8663B, E44x8C, and E82x7D Signal Generators Programming Guide

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Agilent Technologies N5181A/82A, N5183A MXG, E8663B manual Data Questionable Modulation Condition Register
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N5183A, N5183A MXG, E8663B, N5181A/82A specifications

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