HP E1459A SENSe Subsystem, [SENSe:]EVENt:PORTn:DAVailable

SENSe Subsystem

The SENSe Subsystem configures Event Detection in the HP E1459A Module. The HP E1459A has an event detector for each 16 bit Port to detect positive or negative edge transitions and whether new data is available:

DAV	New data is available on the specified digital input port(s).
NEDGe	Negative Edge transition occurred on a specified digital input
	channel(s).
PEDGe	Positive Edge transition occurred on a specified digital input
	channel(s).

For details on using the SENSe Subsystem, refer to Chapter 2.

Syntax	[SENSe:]EVENt
	:PORTn:DAVailable?	page 52
	:PORTn:DAVailable:ENABle <state>	page 53
	:PORTn:DAVailable:ENABle?	page 53
	:PORTn:EDGE?	page 54
	:PORTn:EDGE:ENABle <state>	page 54
	:PORT:EDGE:ENABle?	page 55
	:PORTn:NEDG?	page 55
	:PORTn:NEDG:ENABle <mask>	page 56
	:PORTn:NEDG:ENABle?	page 56
	:PORTn:PEDG?	page 57
	:PORTn:PEDG:ENABle <mask>	page 57
	:PORTn:PEDG:ENABle?	page 58
	:PSUMmary:DAVailable?	page 58
	:PSUMmary:EDGE?	page 59

[SENSe:]EVENt:PORTn:DAVailable?

Returns the status of the DAVailable Event for Port n as either a (unsigned) 0 or a 1.

Parameters

Parameter Name	Parameter Type	Range of Values	Default
PORTn	numeric	0, 1, 2, 3 (PORT = PORT0)	PORT0

Comments • 1 indicates the event did occur; 0 indicates the event did not occur.

•The event must be enabled using the [SENS:]EVEN:PORTn:DAV:ENAB command.

•The event is cleared by reading the data on Port n with the MEAS:DIG:DATAn? command.

Example SENS:EVEN:PORT 2:DAV?	Returns status of DAV Event for Port 2
EVEN:PORT 1:DAV?	Returns statusof DAV Event for Port 1

52 HP E1459A SCPI Command Reference