Computer Operations 4

Computer Interface Commands and Operation

LOCK?

LOCS

LOG?

LOGGED?

Table 4-5. Command and Query Reference (cont)

Returns the instrument front panel lock status, as selected with the LOCK command.

0Front panel keys are unlocked. All key functions are enabled.

1Front panel keys are locked, except for up/down and left/right arrow

keys, which are used to review the minimum, maximum and last values of any channel

2Front panel keys are unlocked, except for the up/down arrow keys, which are used to monitor any channel.

3Front panel keys can be used, except those used to configure a channel.

Local without Lockout

All front panel keys are enabled, and the REM annunciator is not lit. This is the state assumed by the instrument at power-up reset. To disable all the front panel keys, use the LWLS command.

Retrieve Logged Data Query

Return the oldest logged scan values for all configured channels and remove them from internal memory (maximum 100 scans). This query is valid during scanning. The remaining count of stored scans (LOG_COUNT? command) is decremented by

1.Channels defined as OFF are not included. If there are no logged scans to remove, an

Execution Error is generated.

The returns includes the following information:

Date and time at the start of the logged scan.

Values for the channels measured.

Status of ALARM OUTPUTS, DIGITAL I/O, and totalize count.

Logging scans in internal memory is enabled by the PRINT and PRINT_TYPE commands.

Example: LOG? returns 16,15,30,7,21,94,+034.53E-3 VAC,+09.433E+0 VDC,+1.2043E+6 OHMS,15,255,+00.000E+3 [The oldest recorded scan, that started at 1600 hours, 15 minutes, 30 seconds, on July 21, 1994, measured three channels with readings 34.53mVAC, 9.433 VDC, 1.2043 M OHMS, with ALARM OUTPUTS status 15, DIGITAL I/O status 255, and totalize count of 0 (RATE 0 and FORMAT 2 are asserted).]

Retrieve specified scan data from internal memory.

LOGGED? <index>

<index> = (1,2, 3, .. , 100)

A maximum of 100 scans can be recorded in the internal memory. This command is used to retrieve a particular scan. If the <<index>> number has no associated scan, an Execution Error is returned. Logging scans in internal memory is enabled by the PRINT and PRINT_TYPE commands.

Scan data is returned in the same format as for the LOG? query.

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Fluke 2635A user manual LOCK? Locs LOG? LOGGED?

2635A specifications

The Fluke 2635A is a highly advanced multichannel data acquisition system designed for engineers and technicians requiring precision and versatility in their measurement tasks. This instrument excels in monitoring and capturing data from various sources, making it a valuable tool in laboratories, production environments, and field applications.

One of the standout features of the Fluke 2635A is its ability to support up to 20 measurement channels. Users can simultaneously monitor multiple signals, which is crucial for complex testing scenarios where numerous variables need to be tracked. The device is equipped with a 6.5-digit precision measurement capability that ensures high accuracy and resolution in readings. This level of precision is particularly beneficial in applications such as environmental monitoring, research and development, and industrial process control.

The unit incorporates a variety of measurement modes, including voltage, current, temperature, and resistance, making it exceptionally versatile. The Fluke 2635A not only handles standard signals but also integrates with various transducers, providing extensive compatibility for users engaged in diverse testing applications.

To enhance data management, the Fluke 2635A offers advanced data logging capabilities. Data can be stored internally or transferred to external devices for further analysis. The internal memory can accommodate extensive datasets, which can be crucial in long-term monitoring tasks. Integration with external software enables users to analyze and visualize data effectively, allowing for informed decision-making based on comprehensive results.

The user interface is designed for ease of use, featuring a large, bright LCD display that clearly presents measurements and status information. The device is also equipped with a simple navigation system, allowing users to switch between channels and measurement types without hassle.

In terms of construction, the Fluke 2635A is built to withstand rigorous environments. It features a robust design that ensures reliability and durability, making it suitable for both laboratory settings and field operations. Furthermore, the device supports a wide temperature range, thus enabling usage in diverse conditions.

Overall, the Fluke 2635A is a powerful and flexible instrument that provides precise measurements across multiple channels, supporting a wide range of applications. Its advanced technology, combined with user-friendly features, makes it an essential tool for professionals in various fields. The combination of accuracy, flexibility, and durability solidifies its standing as a trusted choice for data acquisition and monitoring tasks.