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System Functions
System
USB Connection Status (Remote Command Only)
Enables you to determine the current status of the USB connection.
USB Packet Count (Remote Command Only)
Enables you to determine the number of packets received and transmitted on the USB bus.
Initial S/W Revision: Prior to A.02.00
Mode: All
Remote Command: :SYSTem:COMMunicate:USB:STATus?
Example: :SYST:COMM:USB:STAT?
Notes: SUSPended – Indicates that the USB bus is currently in its suspended state.
The bus is in the suspended state when:
The bus is not connected to any controller
The controller is currently powered off
The controller has explicitly placed the USB device into the suspended state.
When in the suspended state, no USB activity, including start of frame packets
are received.
ACTive – Indicates that the USB device is in the active state. When the device
is in the active state, it is receiving periodic start of frames but it isn’t
necessarily receiving or transmitting data.
State Saved: No
Range: SUSPended|ACTive
Initial S/W Revision: Prior to A.02.00
Mode: All
Remote Command: :SYSTem:COMMunicate:USB:PACKets?
Example: :SYST:COMM:USB:PACK?
Notes: Two integers are returned. The first is the number of packets received since
application invocation, the second is the number of packets transmitted since
application invocation. If no packets have been received or transmitted the
response is 0,0.
The packet count is initialized to 0,0 when the instrument application is
started.
State Saved: No
Initial S/W Revision: Prior to A.02.00