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Honeywell 400 Series Hardware Manual page 20

Punched card subsystems

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Attention
One or more substatuses always occur with the Attention major status. Unless otherwise
noted in the descriptions below, when an Attention condition is detected during the Channel
Busy condition, the busy state is not terminated until normal termination time. This allows
cards in transit to be processed before feeding halts.
The substatuses that can occur with the Attention major status are described below. The
binary code for each substatus is shown in parentheses.
HOPPER/STACKER ALERT
(xxxxxl)--Occurs when the input hopper is empty or the
output stacker is full.
(See. Appendix A for additional conditions which may cause this
condition on the CRZZOI Reader.)
MANUAL HALT (xxxxlx)--Occurs when:
1.
The
MANUAL HALT. pushbutton on the operator's control panel is actuated.
2.
Power is turned on by the POWER ON pushbutton.
3.
The field engineer goes from the off-line test mode to the on-line mode.
4.
(P) Blank cards have not been loaded into the prepunch stations.
LAST BATCH (R) (xxx1x1)--Occurs when the input hopper goes empty while the LAST
BATCH control is in the on state.
FEED ALERT (OxlxnguOccurs when a card fails to feed from the hopper into the card
track in response to a Feed or Punch instruction.
CARD JAM
(x1xxxx)--Occurs when the progress of a card on the card track becomes
impeded to the poinTthat card feeding cannot be successfully completed. If the subsystem
is in the Channel Busy state at this time, the subsystem interrupts the current Operation
and terminates the instruction being: executed.
If the subsystem was not in the Channel
Busy state at time of detecting the card jam, the subsystem reverts to the Attention condition
and rejects further instructions with this status. On detection of a card jam, the electrical
power starts
cycling down.
Note that Card Jam overrides any other existing status in the
subsystem.
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