Agilent Technologies Agilent E5250A - Manual (Page 251)

Agilent E5250A User’s Guide, Edition 11 8-27
VXIplug&play Driver
Driver Functions
hpe5250a_openList_Q
This function will query the instrument for the channels open given in the
’openchan_list’.
The parameter ’openchan_list’ is an array of integers with each integer representing
one channel. The last number of the ’openchan_list’ should be "0" (numeric zero)
to identify the end of the list. The maximum number of channels that can be
specified by the list is 100.
The ’open_status’ parameter is an array of integers containing the return values of
the query. The ’open_status’ array returned will correspond one to one with
’openchan_list’ parameter.
Syntax ViStatus _VI_FUNC hpe5250a_openList_Q(ViSession vi,
ViInt32_VI_FAR openchan_list[ ], ViInt32 _VI_FAR open_status[ ] );
Parameters vi Instrument handle returned from hpe5250a_init( ).
openchan_list[ ] Channel numbers to know the open status. 5 digits integer.
ABCDE. where A: card number, BC: input port number, DE:
output port number. Top zero(s) can be ignored. For example, if
A=0, BC=01, and DE=01, channel number should be 101
instead of 00101.
open_status[ ] Status of the channels given in the openchan_list.
1 (opened) or 0 (closed).
hpe5250a_readStatusByte_Q
This function returns the contents of the status byte register.
Syntax ViStatus _VI_FUNC hpe5250a_readStatusByte_Q(ViSession vi,
ViPInt16 statusByte);
Parameters vi Instrument handle returned from hpe5250a_init( ).
statusByte The contents of the status byte are returned in this parameter.