4-7
(3) Device commands including ∗RST:
All commands interfering with execution of these commands are cleared.
(4) Paired parameter/program message:
All commands and queries whose execution has been suspended due to
paired parameters are discarded.
(5) ∗OPC command processing:
The specified device is set in the OCIS (Operating Complete Command Idle
State). The operation complete bit cannot be set in the standard event status
register.
(
Section 7)
(6) ∗OPC? query processing:
The specified device is set in the OCIS (Operating Complete Command Idle
State). The operation complete bit cannot be set in the output queue. The
MAV bit is cleared.
(
Section 7)
(7) Automatic system configuration:
∗ADD and ∗DFL common commands are invalidated. (The MS9710C does
not support these commands.)
(8) Device function:
All parts related to message exchange are set in the idle state. The device
waits for a message from the controller.
The following operations are prohibited.
(1) Changing the current device settings and stored data
(2) Interrupting front panel I/O
(3) Changing status bits other than the MAV bit when clearing the output queue
(4) Affecting or interrupting the device operation currently being performed
■ Orders of issue of GPIB bus commands using DCL@ statements
Orders of issue of GPIB bus commands using DCL@ statements are summarized
below.
Statement
Bus command issue order
(ATN line: Low level)
Data
(ATN line: High level)
DCL @ select-code
DCL @ device-
number
UNL, DCL
UNL, LISTEN address,
[secondary-address], SDC
4.2 Initialization of Message Exchange by DCL and SDC Bus Commands
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