Pressure Systems 9046 - Manual (Page 57)

Pressure Systems, Inc. Model 9046 User’s Manual
Page 51 www.PressureSystems.com
5.7.3 Command ’c’- Sub-command Index 02: Stop Stream(s)
This sub-command is used to stop (or temporarily suspend) the delivery of any previously
started host stream in a module, one at a time or all together, whether the stream was
unbounded or bounded. The sub-command’s format is:
Command
“c 02 st”
‘c’ is the operation code
‘02’ is the sub-command index (‘ii’) for Stop
Stream
‘st’ is the stream id digit (single stream 1, 2, or
3, or 0=all streams)
NOTE: all parameters are separated by a
space.
Response
“A” or “Nxx”
‘A’ for acknowledge; ‘N’ for negative
acknowledge, error code xx.
Autonomous
Packet
command stops generation of autonomous
scans from the requested stream(s).
Description : This sub-command stops the current "run" of a particular specified host stream
(st=1-3), or stops the current "run" of "all configured" host streams with a single command
(st=0).
Any stopped stream may be resumed (i.e., restarted) with the Start Stream sub-command as
long as that stream remains defined in the module and any bounded sequence count has not
yet expired. The
Clear Stream sub-command may be used to undefine a stream that you no
longer want to be generated by a Start All Streams sub-command. Any unbounded stream or
unexpired bounded stream that is restarted continues generating new sequence numbers (i.e.,
at the count where it left off when stopped). However, the stream must be reconfigured with the
Configure a Host Delivery Stream sub-command (00) before it restarts with sequence count
=1. Any expired bounded stream must be reconfigured to restart at all.
It is possible for an outstanding stream to arrive in the host between this command and its
response. In that case, the stream can be distinguished from the response by its unique prefix
(tssss) where t = 0, 1, 2 binary.