Keithley 6487 Reference Manual page 285

Model 6487 Reference Manual
These bus commands and their general purpose are summarized in
Table D-1
IEEE-488 bus command summary
Command
type
Uniline REN (Remote Enable)
EOI
IFC (Interface Clear)
ATN (Attention)
SRQ
Multiline LLO (Local Lockout)
Universal DCL (Device Clear)
SPE (Serial Enable)
SPD (Serial Poll Disable)
Addressed SDC (Selective Device Clear)
GTL (Go To Local)
Unad- UNL (Unlisten)
dressed UNT (Untalk)
Common —
SCPI —
Command ATN line
State of
X Set up devices for remote operation.
X Marks end of transmission.
X Clears interface.
Low Defines data bus contents.
X Controlled by external device.
Low Locks out local operation.
Low Returns device to default conditions.
Low Enables serial polling.
Low Disables serial polling.
Low Returns unit to default conditions.
Low Returns device to local.
Low Removes all listeners from the bus.
Low Removes any talkers from the bus.
High Programs IEEE-488.2 compatible instru-
ments for common operations.
High Programs SCPI compatible instruments for
particular operations.
IEEE-488 Bus Overview
Table D-1.
Comments
D-7