Texas Instruments 990 User Manual page 142

Appl icati ons U til i ti es
In usi ng the remote SCI util i ty, the followi ng soo ul d
be
obs er ved:
*
*
*
*
*
*
5.4.1
While the remote SCI util i ty is operati ve, any DXIO SCI
command other than those listed in the remote SCI menu
can be entered to ini ti ate a DXIO process (that is, when
remote SCI is acti ve, the full set of DX10 commands is
supported; rut the remote SCI set applies exclusively to
TX secondary stations). For example, when the modify
memory
(MM)
command is invoked under remote SCI, the
operator is modifying memory in a remote secondary
station. When remote SCI is inactive, the operator uses
the same command to modi fy memory in the DXIO pr imar y
s yst ern.
Remote SCI can only
be
used with TX5 secondary stations.
Renote SCI and OCP functions can both be incl uded in TX
syst ems if desi red.
Remote SCI must
be
generated for each TX5 secondary
station before the secondary station can be linked (see
Section
3).
TX secondar y station system log messages are wri tten to
the primar y station system log when the remote SCI log
t as
k
and dummy devi ce ser vi ce routi ne (DS R) are incl uded
in the secondary station system generation (see Appendix
C) •
The same remote SCI oommand cannot
be
entered
simul taneously from two terminal s; however, di ff erent
remote SCI commands can be simul taneously executed from
two or more term inal s.
Remote SCI util i ty Acti vation and Termination
The remote SCI utility is activated and terminated as follows:
*
*
Remote SCI acti vation. Remote SCI is acti vated by
ent er i ng the SCI command REMSCI and caus es the i ni ti
al
command menu to be displayed. This is detailed in the
following paragraphs.
REmote SCI termination. Once the utility is activated
it may be terminated at any time by ret urning to the
comm and mode by ent eri ng the Qui t (Q) comm and.
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