Chapter 5
S Mode Functions
© National Instruments Corp.
5-39
GPIB-232CT User Manual
Each device's serial poll response byte is returned as a
numeric string giving the decimal value of the byte, followed
by <CR> and <LF>. If a device does not respond in the
timeout period, the GPIB-232CT returns string -1 and records
the EABO error. The time limit is set to 1/10 second unless
you called
tmo
to change it. Each response corresponds
directly to an address you specify, therefore, there are exactly
as many lines of responses, including -1, as the number of
addresses you specify.
If you call
rsp
and the GPIB-232CT is not CIC, it attempts to
become CIC. If it cannot become CIC, it records the ECIC
error. Refer to Appendix B for more information.
If this is the first function you call that requires GPIB
Controller capability, and you have not disabled System
Controller capability with
rsc
, the GPIB-232CT sends
Interface Clear (IFC) to make itself CIC. It also asserts
Remote Enable.
If you passed control to some other GPIB device, control must
be passed back to you or you must send IFC to make yourself
CIC before making this call. Otherwise, the ECIC error will
be posted.
If you call
rsp
without an argument, the GPIB-232CT
records the EARG error.
See Also:
tmo
for timeout information.
