RS-232 Interface
32
Status
(Ux)
Figure
13
Machine Status Word Format
Note:
This command sets the unit to the settings that were last issued remotely (through RS-232 or
GPIB). Therefore, it will over ride any manual changes selected at the front panel of the unit.
Figure
14
Error Status Word Format
Function
Reads a status word and returns the information as a string. Set x to:
“0” for machine status.
“1” for error status.
“2” for revision history.
Remarks
After sending the status command, a status word is sent the next time the unit is
addressed to talk. To ensure the correct status is transmitted, the status word should be
requested as soon as possible after the command is sent.
Machine Status Word (U0) —
The format of the machine status word is shown in
Figure
13
. The default values are also shown.
Error Status Word (U1) —
The format of the error status word and the possible
error messages are shown in
Figure
14
. All flags will revert to their non-error states
after the U1 command is sent.
Status
Meaning
Description
ICM
Invalid Command
Set when an illegal device-dependent command
(IDDC) such as V2 is received. (V is illegal)
VCM
Valid Command
Set when no IDDC is received.
ICO
Invalid Command
Option
Set when an illegal device-dependent command
option (IDDCO) such as T6 is received. (6 is
illegal)
VCO
Valid Command Option
Set when no IDDCO is received.
PS
Self-test Pass
Set when a self-test has been initiated by the J0
command and the test result is acceptable.
FL
Self-test Fail
Set when the self-test has failed. (This is the
default condition.)