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Installation
VX4101A MultiPaq Instrument User Manual
1–25
The format and syntax for the command strings are described in the Command
Syntax section. A complete description if each command in alphabetical order is
in the Command Descriptions section.
Using VXIplug&play Device Drivers. If you are using instrument drivers to control
the VX4101A, instrument initialization occurs automatically. A SYS-
tem:READy? query is sent upon execution of tkvx4101.init. For more informa-
tion on
VXI plug&play instrument drivers, see the Installation section of this manual or
the online help accompanying the instrument.
LEDs at Power-On. At power-on following a successful interface test, the front
panel LEDs will be in the following states:
Power LED On
Fail Off
Message LED Off
ERR LED Off
SYSFAIL* Operation
SYSFAIL* will operate under the following circumstances:
If any fuse opens, the module will assert SYSFAIL* on the VXIbus.
If the +5 V fuse opens, the VXIbus Resource Manager will be unable to
assert SYSFAIL INHIBIT to disable SYSFAIL*.
NOTE. If a +5 V fuse opens, remove the fault before replacing the fuse.
Replacement fuse information is given in the Specifications section of the
manual.
Functional Check
A VXIbus hard reset occurs when another device, such as the VXIbus Resource
Manager, asserts the backplane SYSRESET* line. A VXIbus soft reset occurs
when another device, such as the Slot 0 Controller, sets the Reset Bit in the
VX4101A Control Register.
The VX4101A has a two level hierarchy of self-tests. At power-on or at a
VXIbus hard or soft reset, the instrument runs an extensive interface test. IEEE
Self-Test