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Chapter 13. OperatorFacilities
Contents
Manual Operation
13-1
Basic Operator Facilities
13-1
Address-Compare Controls
13-1
Alter-and-Display Controls
13-2
Check Control
13-2
Check-Stop Indicator
13-2
IML Controls
13-2
Interrupt Key
13-3
Interval-Timer Control
Load Indicator
13-3
Load-Clear Key
13-3
Load-Normal Key
13-3
Load-Unit-Address Controls
Machine-Save Key
13-3
Manual Operation
13-3
13-3
The operator facilities provide functions for the
manual operation and control of the machine. The
functions include operator-to-machine
communication, indication of machine status,
control over the setting of the time-of-day clock,
initial program loading, resets, and other manual
controls for operator intervention in normal
machine operation.
A model may provide additional operator
facilities which are not described in this chapter.
Examples are the means to indicate specific error
conditions in the equipment, to change equipment
configurations, and to facilitate maintenance.
Furthermore, controls covered in this chapter may
have additional settings which are not described
here. Such additional facilities and settings are
contained in the appropriate System Library (SL)
publication.
Most models provide, in association with the
operator facilities, a console device which may be
used as an
IIO
device for operator communication
with the program; this console device may also be
used to implement some or all of the facilities
described in this chapter.
'
Manual Indicator
13-3
Mode Indicator
13-4
Power Controls
13-4
Rate Control
13-4
Restart Key
13-4
Save Indicator
13-4
Start Key
13-4
Stop Key
13-4
Storage-Size Control
System-Reset-Clear Key
13-4
13-5
System-Reset-Normal Key
13-5
Test Indicator
13-5
TOO-Clock Control
13-5
Wait Indicator
13-5
The operator facilities may be implemented on
different models -in various technologies and
configurations. On some models, more than one
set of physical representations of some keys,
controls, and indicators may be provided,such as
on multiple local or remote operating stations,
which may be effective concurrently.
A machine malfunction that prevents a manual
operation from being performed correctly, as
defined lor that operation, may cause the CPU to
enter the check-stop state or give some other
indication to the operator that the operation has
failed. Alternatively, a machine malfunction may
cause a machine-check-interruption condition to be
recognized.
Basic Operator Facilities
Address-Compare Controls
The address-compare controls provide a way to
stop the CPU when a preset address matches the
address used in a specified type of main-storage
reference.
One of the address-compare controls is user} to
set up the address to be compared with the storage
address.
Chapter 13. Operator Facilities
13-1
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