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: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