Dial,Nnnn,Ccc; Message,Ccc; Peripheral Equipment Control Commands - Control Data Corporation CYBER 170 Series Operator's Manual

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n.ONSWx.
Turns on sense switch x (lsxs6) at control point
n. Refer to Subsystem Control Commands in this
section for definition of sense switches that can
be set for the remote batch, BATCHIO,
time-sharing, and transaction subsystems.
n.OPPSWx.
Turns off sense switch x (lsxs6) at control point n.
n. GO.
Clears the pause bit at control point n. A job may
set the pause bit if an error is encountered or if
an operator response is required. The pause bit
causes the job to r:elinquish use of the CPU until it
is cleared via entry o(this command.
The following job control commands apply only to jobs of
time-sharing origin. The time-sharing subsystem must be
active at control point 1.
MESSAG E,ccc ••• ccc.
Changes TELEX header message output to
terminal when TELEX user logs in to ccc ..• ccc
(48
characters maximum). t This message also
appears at the time-sharing sUbsystem control
point on the B display (refer to section 4).
DIAL,nnnn,ccc .•• ccc.
Sends message ccc ••• ccc
(48
characters maximum)
to terminal currently using line number nnnn.
Examine the T display (refer to section
4)
to
determine the appropriate line number. The
message is sent to the terminal if!1mediately
except when output is being sent to the terminal.
In that case, the message follows the output data.
WARN ,ccc .•. ccc.
Sends message ccc ••• ccc
(48
characters maximum)
to all terminals currently logged into the system.
The message is received at a terminal upon
completion of the current command or at the end
of a job step. Each subsequent terminal to log in
also receives this message. This continues until
either a new message is entered or the message is
cleared (refer to following command). In addition,
the current message also appears at the
time-sharing subsystem control point on the B
display.
When sent to a time-sharing terminal, the
message ccc ••• ccc is always preceded by the
statement
hh.mm.ss. WARNING
L
time (hours.minutes.seconds) when you
entered the WARN com mand
Por example, if the operator enters
WARN,SYSTEM SHUTDOWN AT 1500.
the following information would be transmitted to
all terminals.
hh.mm.ss. WARNING
SYSTEM SHUTDOWN AT 1500.
This command is typically used to notify
time-sharing users of an interruption in service or
system shutdown.
WARN.
Clears message entered by the WARN,ccc ••• ccc.
command. Unless this command is entered, the
existing message (if any) will continue to be
transmitted to each new terminal that logs into
the system.
PERIPHERAL EQUIPMENT CONTROL
COMMANDS
The commands described in this category provide overall
control of the peripheral equipment available to the
system.
tt
Become familiar with the following DSD
displays which are closely associated with the use of these
and other com mands described throughout this section.
o Equipment status table (EST) display.
• Mass storage status table display.
• Tape status display.
• Resource mounting preview display.
A complete description of each of these displays is given in
section 4 of this manual.
n.ASSIGN,xx.
Assigns equipment defined by EST ordinal xx
(normally tape unit) to job at control point n. This
command is entered in respon"se to a flashing
REQUEST message at that control point. Use of
this command for assignment of a tape unit should
not normally be required because tape assignment
is performed automatically when a volume serial
number (VSN) is specified in the job request.
However, if a VSN is not specified in the job
request for a labeled or unlabeled tape, the
REQUEST message appears at the job's control
poirit (on B display), and the ASSIGN command
must be entered to assign a tape unit to the job.
VSN,xx,vsn. ttt
Assigns VSN vsn to an unassigned magnetic tape
unit defined by EST ordinal xx. This command
allows you to specify a 1- to 6-character VSN for
a mounted, unlabeled tape so it may be assigned
and referenced automatically. For example, when
a job specifies a VSN in the request for an
unlabeled tape, an entry for that job appears in
the resource mounting preview display (E,P.).
This display indicates the PNT ordinal of the job,
the type of tape unit, 7-track (MT) or 9-track
(HD, PE, or GE), on which the tape is to be
mounted, the required VSN, user number of the
job, and the required write ring status (IN or
OUT). If the correct tape is not currently
HAF users do not receive the message; it appears only at the lAP control point.
tt Operation of peripheral equipment is described in appendix D.
tttSpecial characters cannot be entered using this, command.
If
a special character is encountered in vsn, the VSN entered
is
truncated at the character preceding the special character.
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