Using the Computer Interface

4

Computer Interface Command Set

Table 4-8. Command and Query Reference (cont)

LOG_MODE

LOG_MODE?

LWLS

MAX?

Determines treatment of new scan data when memory is full (RS-232 only)

LOG_MODE <mode>

0Wrap around. When memory is full, oldest scans are discarded to make room for new scans. This is the default mode.

1Discard new scans. New scans are stored only when memory becomes available. (See LOG? and LOG_CLR.)

The LOG_MODE setting is non-volatile and cannot be changed from the instrument front panel. An Execution Error is generated if the instrument is a Hydra Data Acquisition Unit.

Query treatment of new scan data when memory is full (RS-232 only)

0 or 1 is returned, signifying the mode set with the LOG_MODE command. An Execution Error is generated if the instrument is a Hydra Data Acquisition Unit

Local with Lockout (RS-232 only)

Enter the IEEE-488.1 local with front panel lockout (LWLS) state. All front panel buttons are disabled. The REM annunciator is not lit.

Channel’s Maximum Value

Returns maximum value(s) for channels measured in the most recent scan. The value returned represents data from the most recent scan. The most recent scan is the scan in progress or, if scanning is not in progress, the last completed scan.

MAX? <channel> <channel> = (0 .. 20)

Leave the channel specification field blank if values for all defined channels are desired. An Execution Error results if a request is made for a channel defined as OFF, the channel specified is invalid, the channel specified has been set up but not yet measured, or Review array values have been cleared. The response is a signed number with decimal point and exponent. For slow scanning rate, 5 digits are returned (+/- XX.XXXE+/-X); for fast scanning rate, 4 digits are returned (+/-XX.XXE+/- X). The range setting determines placement of the decimal point.

For maximum values of all defined channels (no channel specification made), undefined (OFF) channels are not included. For each defined channel, a separate signed number with decimal point and exponent is returned. Commas separate numbers for different channels, and no blank spaces are included.

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Fluke 2620A, 2625A user manual Logmode LOGMODE? Lwls MAX?
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2625A, 2620A specifications

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