Fluke 45 5-20, Users Manual, 8. IEEE-488Interface Function Subsets, 9. IEEE-488Common Commands

45

Users Manual

Table 5-8. IEEE-488 Interface Function Subsets

SH1	Source Handshake
AH1	Acceptor Handshake
T5	Talker
L4	Listener
SRI	Service Request
RL1	Remote/Local
DC1	Device Clear*
DT1	Device Trigger
E1	Electrical interface

^C (CNTRL C) is the RS-232 equivalent of DC1, causing <CR><LF> and a new prompt to be output.

Table 5-9. IEEE-488 Common Commands

Command

*CLS

*ESE <value>

*ESE?

*ESR?

*IDN

*OPC

*OPC?

*RST

Name

Clear Status

Event Status Enable

Event Status Enable Query

Event Status

Register Query

Identification Query

Operation Complete Command

Operation Complete Query

Reset

Description

Clears all event registers summarized in the status byte, except for "Message Available," which is cleared only if *CLS is the first message in the command line.

Sets "Event Status Enable Register" to <value>, an integer between 0 and 255. <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.

EXAMPLE: decimal 16 converts to binary 00010000. Sets bit 4 (EXE) in ESE to 1.

Meter returns the <value> of the "Event Status Enable Register" set by the *ESE command. <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 "Event Status Register" and then clears it. <value> is an integer whose binary equivalent corresponds to the state (1 or 0) of bits in the register.

Meter returns the identification code of the meter as four fields separated by commas. These fields are: manufacturer ("FLUKE"); model ("45"); seven-digit serial number; version of main software and version of display software.

Meter sets the Operation Complete bit in the Standard Event Status Register when parsed.

Meter places an ASCII "1 " In The output Queue when parsed.

Meter performs power-up reset except that the state of IEEE- 488 interface is unchanged, including: 1) instrument address, 2) Status Byte and, 3) Event Status Register.

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