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Fluke 45 User Manual

Page 80

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Operating the Meter Using the Computer Interface

Computer Interface Command Set

5

5-21

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

Command

Name

Description

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

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

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

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

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

*SRE

*SRE?

*STB?*TRG

*TST

Service Request
Enable

Service Request
Enable Query

Read Status Byte
Trigger

Self-Test Query

0

1

2

4

8

16

32

64

128

256

Passes

A/ D self-test failed

A/D dead

EEPROM instrument configuration bad

EEPROM calibration data bad

Display dead

Display self-test failed

ROM test failed

External RAM test failed

Internal 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.