DIAGnostic:DMM:CYCLes?

Syntax | Description | Parameters | Remarks | Return Format | Example

Syntax

DIAGnostic:DMM:CYCLes? {1|2|3|4|5|6}

Description

This command reads the cycle count on one of six relays associated with function selection and isolation on the internal DMM. The relays are numbered "1" through "6", which correspond to relays K102 through K107, respectively.

Relay Number	Component Locator	Description
1	K102	For resistance measurements, this relay enables the ohms current source. For current measurements, this relay selects whether the 0.1Ω (1A range) or the 5Ω (10 mA, 100 mA range) current shunt is used.
2	K103	For dc voltage measurements, this relay connects Input High to the low-voltage dc input for the 10 Vdc range and below. For ac voltage measurements, this relay connects Input High to the ac input.
3	K104	For dc voltage measurements, this relay connects Input High to the high-voltage attenuator for the ranges greater than 10 Vdc. For all ac measurements, this relay selects between measuring ac voltage or measuring ac current.
4	K105	Input High and Input Low isolation to the backplane.
5	K106	Ohms Sense High and Ohms Sense Low isolation to the backplane.
6	K107	Current High and Current Low isolation to the backplane.

Remarks

• The internal DMM is an optional assembly for the Agilent 34980A. An error is generated if the internal DMM is disabled (see INSTrument:DMM[:STATe] command) or not installed in the mainframe.

• To read the cycle count on the multiplexer and switch modules, use the DIAGnostic:RELay:CYCLes? command.

• See the Agilent 34980A Service Guide for information on replacing relays.

Return Format

The query command returns the cycle count on the specified internal DMM relay.

Example

The following command returns the cycle count on backplane relay 2 (relay K103).  

DIAG:DMM:CYCL? 2

Typical Response:  +76289

See Also

DIAGnostic:RELay:CYCLes?