Measurement Computing GPIB-488.2 - Manual (Page 12)

2-4 API Cross-Reference 986992 GPIB 488.2 Porting Guide
IOtech to MCC GPIB 488.2 Cross-Reference
IOtech GPIB
API Reference MCC GPIB 488.2
Library Routine Comments
24 OpenName
NO EQUIVALENT
OpenName - opens the specified interface or external device
and returns a device handle for use in accessing that device.
25 OutputX
Also see:
SendData
SendCmd
Send
SendDataBytes
SendList
Output
OutputN
OutputMore
OutputNMore
Send
OutputX - sends data to an interface or external device. The
Remote Enable (REN) line is first asserted if Driver488 is the
System Controller and AutoRemote is enabled. Then, if a
device address (with optional secondary address) is
specified, Driver488 is addressed to Talk and the specified
device is addressed to Listen. If no address is specified,
then Driver488 must already be configured to send data,
either as a result of a preceding OutputX command, or as
the result of a Send command. Terminators are
automatically appended to the output data as specified.
26 PPoll PPoll PPoll (Parallel Poll) – simultaneously request status
information from many bus devices. If a device requires
service then it responds to a Parallel Poll by asserting one of
the eight IEEE 488 bus data lines (DIO1 through DIO8, with
DIO1 being the least significant). In this manner, up to eight
devices may simultaneously be polled by the controller.
More than one device can share any particular DIO line. In
this case, it is necessary to perform further Serial Polling
(SPoll) to determine which device actually requires service.
PPollConfig PPollConfig PPollConfig - configures the Parallel Poll response of a
specified bus device. Not all devices support Parallel Polling
and, among those that do, not all support the software
control of their Parallel Poll response. Some devices are
configured by internal switches.
PPollDisable PPollUnconfig PPollDisable - disables the Parallel Poll response of a
selected bus device.
PPollDisableList PPollUnconfig Like PPollDisable, but uses a list for devices.
PPollUnconfig PPollUnconfig PPollUnconfig - disables the Parallel Poll response of all bus
devices.