Measurement Computing Digital HS User Manual
Page 18
Service Request (SRQ) Enable causes the Digital488HS/32 to generate a service
request on the IEEE 488 bus when oBusy transitions from the active (Not Empty) to
the inactive (Empty) state, indicating the external device has accepted previous data
and the port is Empty. Default is SRQ on Empty disabled.
OPEN
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OPEN
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SRQ on Empty Disabled
(default)
SRQ on Empty Enabled
S3
SRQ EN EMPTY
S3
SRQ EN EMPTY
SRQ On Output Port Empty Selection
2.2.2.3.2 S3-2 ist EN EMPTY: Individual Status Message True on Outut
Port Empty Enable
The Empty status can be sensed via parallel polls when the individual status message
(ist) enable is selected. See section 3.4 for more information. Default is disabled.
OPEN
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OPEN
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ist on Empty Disabled
(default)
ist on Empty Enabled
S3
ist EN EMPTY
S3
ist EN EMPTY
Individual Status Message (ist) on Output Port Empty Selection
2.2.2.3.3 S3-3 oDAV POL: Output Data Available Handshake Line