Duplication; Skipping; Keyboard Control; Program Control - IBM 545 Output Punch 1 Reference Manual

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first issuing the start signal. But, autopunching that follows a
skip must be started with a start signal from the system.
Duplication
Information read from the card at the master card station is
duplicated into the detail card at the punch station. The dup
Operation, in the autopunch mode, is permitted when the auto
skip/dup switchis in the on position. Duplication may be
initiated by a 0(6)-punchin the programcard, or by an equiva-
lent impulse from the using system. The operation continues
in either case, under the control of program field definition
12(4)-punches, to the end of the field. (See "Programming"
in the autopunch mode section.) Information is duplicated
at the rate of 20 cps.
Skipping
The rapid skipping of card columns without punchingis per-
mitted when the auto skip/dup switch is in the on position.
Skipping maybe initiated by an 11(5)-punch in the program
card or by an equivalent impulse from the using system. The
Operation continues in either case, under the control of pro-
gram field definition 12(4)-punches, to the end of thefield.
Card columns are skipped at the rate of 80 cps.
|
The duplication of an 11-punchdoes not cause skipping.
Keyboard Control
Information may be keypunched in autopunch modein the
fields defined in the program for keyboard control. Keyboard
control unlocks the keyboard and allows the operatorto per-
form all operations usually associated with manual keypunch-
ing. (See "Keypunch Mode."') In autopunch mode, the key-
board is normally locked.
Either the system or the program mayinitiate and maintain
the keyboard control function. The 2(8)-;, 3(9)- and 12(4)-
punchesare available in the program for this use. For ex-
ample, the system maybe designed to allow the program
2(8)-punch to initiate keyboard control with field definition
provided by 12(4)-punches. However, any one of the above
mentioned punches maybe used toinitiate (except 12 or 4)
or define keyboard control fields, depending on the design
of an individual system.
Error Correction
If an operator makes a keyingerror in a keyboard control
field, the autopunch/keypunch switch should be set to key-
punch, the error corrected, and the keypunchfield completed.
- Return the switch to autopunch to continue operation in
autopunch mode.
Program Control
The processing of a card starts in column 1 under the control
of either program | or program 2. The setting of the program
selection switch (Figure 7) determines which program level
will be in control in column 1. With an impulse to program
1 or program 2(Hub AA, AB, Figure 35), the system may, in
any card column, transfer control to the alternate program
level. The program level may be changed as oftenas desired,
however, the change cannot be made during an automatic skip
or dup operation.
When operating with the auto feed switch off, the system
mayselect the initial program level for the next card by im-
pulsing program | or program 2, following the escapement
of a card from column 80(81). The programselecting im-
pulse also causes a card feed cycle, and the punching opera-
tion resumes with the next start pulse from the system. |
Note: Operation with the auto feed switch off causes an
error interlock signal at the end of each card, and turns on
the check light. The error condition is alleviated by impulsing
card feed, program 1, or program 2.
Feed/Release/Space
Proper operation in autopunch mode includes feeding the
cards automatically, that is, the auto feed switchis on. This
permits a stacker-full condition to be brought to the atten-
tion of the system by preventing auto feeding. Failure to
automatically feed the next card allows improper card 'posi-
tioning for continued autopunch operation, whichis indicated
by the checklight and an error signal to the system.
The system may override this condition by impulsing card
feed (Hub z, Figure 35), but proper procedure calls for empty -
ing the stacker and pressing the feed key to allow normal,
Operation to continue.
|
Operation in autopunch modewith the auto feed switch
off is possible; however, an error indication occursat the
end of each card. The system ignores and overrides the indi-
cation by impulsing card feed, program 1, or program 2 to
feed the next card for continued operation.
CAUTION
The system may cause card feed cycles as long as no card
is registered at either or both the master and punchcard
stations. Therefore, the system must not impulse "card
feed" in autopunch modeuntil after the manual card run-
in procedure is used. See "Start-Procedure."
The processing of any card may be discontinued in any
card columnby a system impulse to "release" (Hub L, Fig-
ure 35). The master and detail cards are moved out of the
master and punchstations, past column 80, at the rate of
80 cps. After a release, if the auto feed switchis off, cards
will be positioned in the prestack, master preregister, and
punchpreregister positions. If the auto feed switchis on,
the master card is stacked, the detail card is registered at the
master station, the punch preregister card is registered at the
punch station, and the next card in the hopper is fed to the
preregister position.
Release cannot be initiated by the program card or by the
release key. However, auto duplication is performed
Autopunch Mode
37

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