Capabilities of the IEEE-488 Bus Interface
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5-4
5.4 Capabilities of the IEEE-488 Bus Interface
The IEEE computer interface has the following capabilities defined by the IEEE-488
standard:
SH 1
Handshake source function
AH 1
Handshake sink function
T6
TALKER function
L3
LISTENER function
RL1
Remote control
DC1
Reset function
DT1
Initiate function
SR1
Service request function
General IEEE-488.1 Messages
The instrument understands the universal commands DCL, SPE and SPD. The
command DCL (device clear) brings the instrument into its basic state (V dc, 300V).
Of the addressed commands it understands GET, GTL, LLO and SDC.
The commands have the following effects:
DCL
Device Clear
Sets the instrument to the basic state
SDC
Selected Device Clear
Sets the instrument to the basic state
GTL Go To Local
Terminates remote control status
LLO Local Lock Out
The instrument cannot be switched to manual
control via the local button (keyboard lockout)
SPE
Serial Poll Enable
Prepares for serial polling
SPD Serial Poll Disable
Terminates serial polling
GET Group Execute Trigger Initiates a trigger for the addressed devices
UNT
UnTalk
Addressing cancellation - is not displayed
UNL
UnListen
Addressing - is not displayed
PPC, PPU, TCT
not supported
