Warner Electric CBC-1000 - Manual (Page 26)

24 Warner Electric • 800-825-9050 P-275 • 819-0496
Command Characters
Command Characters mimic the operation of the front
panel keyboard. Below is a list of the serial equivalents of
the front panel keys.
Control Characters
Two control characters are used to start and stop
the transmission from the CBC-1000 control. They
are shown below:
(CTRL) S Suspends transmission following the
completion of a line being sent. The
driver will then be turned Off.
(CTRL) Q Resumes transmission from a unit that
had been turned Off. The RUN mode line
currently selected will be
continuously updated.
Escape Code Sequences
Escape code sequences are a group of special
commands used for bus oriented systems. Every
CBC-1000 control recognizes these commands.
The two listed below are in addition to those listed
in the table of LOCAL and GLOBAL commands.
(ESC) A nn The Address command is used to
select a single control within a
system. Only that unit whose serial
I.D. number matches the two digit
serial address (nn) will be selected.
Only that unit will respond to
subsequent serial commands. All
units, even the addressed one,
suspend transmission.
(ESC) U The Update command instructs the
currently addressed unit to transmit a
single line only.
ʻSʼ
“U”
ʻCʼ
“Q”
ʻDʼ
thru
ʻEʼ
ʻRʼ
ʻPʼ
ʻ0ʼ THRU ʻ9ʼ
RUN
PGM
EDIT STOP
0
START
RESET
CLEAR
(
Protocol
The CBC-1000 will “buffer” up to 16 Command and
Control Characters (but not Escape Code
Sequences) listed above, sent in “burst mode”.
Those characters are read, in order, every 20 msec.
The protocol should be careful not to overflow the
receive buffer. Additionally, Escape Code Sequences
should not be sent until the buffer has emptied and
all characters have been processed.