Local Command Set
Chapter 3
GPIB-VXI User Manual
3-20
© National Instruments Corporation
Response:
Program
response:
1
<CRLF>
if it is a DC system, or
0
<CRLF>
if it is not a DC system, or if it is no longer dynamically configurable because the
Begin Normal Operation
command has already been sent to the top-level
commanders through the
DCBNOSend
local command.
Console
response:
This IS a Dynamic Configured system.
<CRLF>
if it is a DC system, or
This is NOT a Dynamic Configured system.
<CRLF>
if it is not a DC system.
Dynamic Reconfiguration Queries
The dynamic reconfiguration queries are described on the following pages.
•
Broadcast?
•
GrantDev?
•
RelSrvnt?
The dynamic reconfiguration commands are used to reconfigure the GPIB-VXI's servant subtree
after the system has entered the Normal Operation sub-state. If the GPIB-VXI is RM, these
commands can be used to reconfigure the entire system.
The
Broadcast?
query can be used to make the system or subtree enter the Configure sub-
state by broadcasting the
End Normal Operation
Word Serial query, or the
Clear
Word Serial
command followed by the
Abort Normal Operation
Word Serial query.
The
RelSrvnt?
and
GrantDev?
queries can then be used to restructure the
commander/servant hierarchy. Dynamic reconfiguration could be directly performed by using
the
WSCmd
and
WSCmd?
local commands, but the GPIB-VXI's RM table would not be updated.
By using the
RelSrvnt?
and
GrantDev?
queries to reconfigure the system, you ensure that
the GPIB-VXI's system hierarchy and secondary address link records do not become corrupted.
