Operating instructions

3. Controller is off line.
4.
Power is off to controller.
5. Controller is malfunctioning.
CARD READER Alarm. This alarm is turned
on when attempting to execute an RCB, RCD,
or RCF instruction while the card reader
is
not in the ready condition. When the CARD
READER alarm comes on, the PRIORITY alarm
also comes on and the card reader and the
central processor halt. The alarms in this com-
bination are reset only by depressing the RESET
ALARM switch. The reader can be 'not ready'
for any of the following reasons:
1.
Card Reader is not turned on.
2. Input hopper is empty.
3. A card is not positioned on the sensing
platform.
4.
Reader is busy (already reading a card).
5.
A misfeed or card jam occurs.
Ready Indicators.
The green ready indicator lights
in the upper right corner of the control console give
'go-ahead' signals to
the operator. With certain
exceptions, these lights come on when the card punch
and card reader are ready for use or when the
N
register is ready to receive information. Ifthe equip-
ment
is not # ready for operation, an attempt to use it
will
turn the ready light off and set an alarm indi-
cator.
The standard ready indicators are the following:
CARD PUNCH READY. This light
is turned on
to indicate that, in five respects, the cardpunch
is ready to punch cards. If the card punch is
not otherwise in an operable condition when a
punch instruction is attempted, the ready light
will go off and the CARD PUNCH
andPRIORITY
alarms will come on. The five conditions of
readiness which together turn on the CARD
PUNCH READY light are:
1. The input hopper contains cards.
2.
The stacker is not full.
3. A card is properly located at station
' one'.
4. A card is not currently being punched.
5. The chip box is properly seated.
CARD READER READY.
This light
is turned
on to indicate that, in three respects, the card
reader
is ready to read cards. If the card
reader
is not otherwise in an operable condition
when
a read instruction is attempted, the ready
light will go off and the CARD READER and
PRIORITY alarms will come on. The three
conditions of readiness which turn the CARD
READER READY light on are:
1. The input hopper contains enough cards
(or weight) to depress the hopper-
empty switch.
2. A card is not currently being read.
3. No misfeed or card jam is detected.
N REGISTER READY, This light comes on to
indicate that the N register
is ready to receive
input or output information. Specifically,
it
means that the register is not currently being
used by the typewriter, paper tape reader, or
paper tape punch. If an illegal code
is placed
in the
N Register and a TYP command given,
the N REGISTER READY light goes out and
stays out until a space key
is struck.
There
are three more indicators to the right of the
ready indicators. These are:
AIM, The
automatic interrupt mode p'errnits
-
the simL!ltaneous ogeration of two or more pro-
grams. When a
program puts the conl2uter in
the interrupt mode, the green AIM light
conles
on at the time of the first interrupt and re:n-ins
02 until turned off under program zontrol or is
turned off by the operator-. The operator can
turn the AIM indicator off by
procedlres de-
scribed later in this section.
8K OTJLY.
011 a conlp~lter which has only an
8K
mem~y, this indicator is on all the timc. A
coln~lter wnich has a 16K menlory canbe set by
the service engineer to operate either with the
caxnplete (16K) memory or with only half of it
(8K). The 8K ONLY indicator is lit when the
camputer is set to ogerate only with 8K; it is off
w!ien the corn2uter is set to operate with 16K.
DECLM-\I, M'03E. This indicator is lit when
the central pra:essor is
in the decimal
mode.
When the injicator is not lit, theprocessor is in
the binary
mode.
1nrle.x Group Indicators. The five INDEX GROLTP
display lights are located below the alarm I.ights
and to the left of the P counter display lights. The
lights are numbered one through five from right to
left. These five lights, read as binary digits,
indicate