HP E1351A, User Manual

Page: 72 / 107

:CTYPe?
SYSTem:CTYPe? <
number
>
returns the module (card) type of a selected
module in a switchbox.
Parameters
Parameter Name Parameter Type Range of Values
number Numeric 1 - 99
Comments
•
16-Channel FET Multiplexer Module Model Number:
The
SYSTem:CTYPe? < number > command returns:
HEWLETT-PACKARD,E1351A,0,A.03.00
•
16-Channel Thermocouple FET Multiplexer Module Model Number:
The
SYSTem:CTYPe? < number > command returns:
HEWLETT-PACKARD,E1353A,0,A.03.00
Note: The first number after the model number is the serial number
of the module (always 0); the module revision code follows the
serial number (for example, A.03.00).
Example
Reading the Model Number of a Card #1 Module
SYST:CTYP? 1
Determine the model number.
:ERRor?
SYSTem:ERRor?
returns the error numbers and corresponding error
messages in the error queue of a switchbox. See Appendix C for a listing of
the switchbox error numbers and messages.
Comments
•
Error Numbers/Messages in the Error Queue: Errors generated
by a switchbox stores an error number and corresponding error
message in the error queue. Each error message can be up to 255
characters long.
•
Clearing the Error Queue: An error number/message is removed
from the queue each time the
SYSTem:ERRor?
command is sent.
The errors are cleared first-in, first-out. When the queue is empty,
each following
SYSTem:ERRor? command returns 0, "No error".
To clear all error numbers/messages in the queue, execute the *CLS
command.
•
Maximum Error Numbers/Messages in the Error Queue: The
queue holds a maximum of 30 error numbers/messages for each
switchbox. If the queue overflows, the last error number/message in
the queue is replaced by -350, "Too many errors". The least recent
error numbers/messages remain in the queue and the most recent are
discarded.
Example
Reading the Error Queue
SYST:ERR?
Query the error queue.
72 HP E1351A/53A 16-Channel FET Multiplexer Command Reference Chapter 5