Measurement-computing Extender 488HS Rev.2.0 Uživatelský manuál stáhnout pdf (Strana 26)

Section 3 IEEE 488 Primer

3.8

3.7.6 Local Lockout (LLO)

Issuing the

LLO

command prevents manual control of the instrument's

functions. ($11)

3.7.7 Device Clear (DCL)

This command causes all bus devices to be initialized to a

pre-defined or power up state. ($14)

3.7.8 Selected Device Clear (SDC)

This causes a single device to be initialized to a pre-defined or power up

state. ($04)

3.7.9 Serial Poll Disable (SPD)

The

SPD

command disables all devices from sending their Serial Poll

status byte. ($19)

3.7.10 Serial Poll Enable (SPE

)

A device which is Addressed to Talk will output its Serial Poll status

byte after

SPE

is sent and

ATN

is unasserted. ($18)

3.7.11 Group Execute Trigger (GET)

This command usually signals a group of devices to begin executing a

triggered action. This allows actions of different devices to begin

simultaneously. ($08)

3.7.12 Take Control (TCT)

This command passes bus control responsibilities from the current

Controller

to another device which has the ability to control. ($09)

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Measurement-computing Extender 488HS Rev.2.0 Uživatelský manuál Strana 26