Operating the Meter Using the Computer Interface

5

Computer Interface Command Set

Table 5-10. IEEE-488 Common Commands (cont)

Command

*SRE <value>

*SRE?

*STB?*TRG

*TST

Name

Service Request Enable

Service Request Enable Query

Read Status Byte Trigger

Self-Test Query

Description

Sets the "Service Request Enable Register" to <value>, an integer between 0 and 255. The value of bit six is ignored because it is not used by the Service Request Enable Register.

<value> is an integer whose binary equivalent corresponds to the state (1 or 0) of bits in the register. If <value> is not between 0 and 255, an Execution Error is generated.

Meter returns the <value> of the "Service Request Enable Register" (with bit six set to zero) <value> is an integer whose binary equivalent corresponds to the state (1 or 0) of bits in the register.

Meter returns the <value> of the "Status Byte" with bit six as the "Master Summary" bit.

<value> is an integer whose binary equivalent corresponds to the state (1 or 0) of bits in the register.

Causes the meter to trigger a measurement when parsed.

Causes the meter to run internal self-test. Test takes about 15 seconds. All display segments are lit during the test. No user interaction is required.

The number returned corresponds to a state described in the table below. Meter reverts to power-up configuration after tests performed.

Number

State

 

 

0Passes

1A/ D self-test failed

2A/D dead

4EEPROM instrument configuration bad

8EEPROM calibration data bad

16

Display dead

32Display self-test failed

64ROM test failed

128External RAM test failed

256Internal RAM test failed

*WAI

Wait-to-continue

EXAMPLE: Decimal 9 (8 plus 1) converts to binary 000010010, meaning the A/D self-test failed and EEPROM calibration data are bad.

Command required by IEEE-488.2 standard. Non-operational in Fluke 45 Dual Display Multimeter. Command accepted but has no effect.

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Fluke 45 user manual IEEE-488 Common Commands, Number State

45 specifications

The Fluke 45 is a versatile and high-precision Digital Multimeter that is designed for a wide range of applications in electrical testing, troubleshooting, and maintenance. Known for its reliability and advanced features, the Fluke 45 is an essential tool for engineers, technicians, and professionals who require accurate measurement capabilities.

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The Fluke 45 also boasts an impressive resolution of 0.1 mV and a basic accuracy of 0.25%, which translates to highly reliable readings. The auto-ranging capability simplifies the measurement process, automatically selecting the appropriate range based on the input signal, thus saving time and reducing user error.

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