2635A

Users Manual

PRINT #1, "*RST;FUNC 0,VDC,4;PRINT_TYPE 0,0;PRINT 1;*TRG":PRINT

INPUT$(124, #1)

If other commands are entered, remember that the input character count xxx for PRINT INPUT$(xxx, #1) command must be exact. A number too small will not read all the characters and will leave residual characters in the buffer, while a number too big will "hang up" the command until more characters are loaded into the buffer or <CNTL><BREAK> is pressed, which erases the buffer.

6. Use Exit to exit QBASIC and return to DOS.

Computer Interface Commands and Operation

Operation of the computer interface between the instrument and PC normally involves the application software Starter (supplied) and Logger (optional), described in separate manuals. This chapter is provided for the user who wishes to develop his own software interface using the instrument command set. The topics in this chapter include:

∙How the Instrument Processes Input

∙Input Terminators

∙Input String Examples

∙Sending Numeric Values to the instrument

∙How the Instrument Processes Output

∙Status Registers

∙Computer Interface Command Set

How the Instrument Processes Input

The instrument processes and executes valid input character strings from the host personal computer (PC). A valid input string is one or more syntactically correct commands, separated by semicolons (;) followed by an input terminator. The instrument stores received inputs in a 350-byte buffer. When an input string is received, it is not executed or checked for proper syntax until the input terminator is received. If the 350- byte input buffer becomes full, a device-dependent error prompt is returned, and further inputs to the string are ignored, except for a termination character. The instrument accepts alphabetic characters in either upper- or lower-case. If a command cannot be understood, the command and the rest of the command line are ignored.

Commands must be entered in the correct order as follows:

1.Commands to configure the instrument.

2.Commands that trigger a measurement.

3.Commands to read the results of a triggered measurement.

4.Commands to reconfigure the instrument (if any).

Input Terminators

An input terminator is a character sent by the host that identifies the end of a string. When the input terminator is received, the instrument executes all commands entered since the last terminator was received, on a first-in, first-out basis. If a communications error (e.g., parity, framing, overrun) is detected, a device-dependent error is generated. Valid terminators are LF (line feed), CR (carriage return), CR LF, and LF CR. In some

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Fluke 2635A user manual Computer Interface Commands and Operation, How the Instrument Processes Input, Input Terminators
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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.
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