Honeywell 400 Series Hardware Manual page 22

PUNCH ALERT (P) (OOlex)--Occurs whenever the row parity accumulated from the read
Ration does
not agree with that previously established when the data entered the card
image buffer in the controller. After the Punch Alert substatus and Data Alert status
information has been transmitted, the punch sends a Terminate signal.
Since the punch check is made by the read head while the following card is being punched,
a punch alert, if there is one, concerns not the card just punched, but the card just read
and entering the stacker.
The last card to be punched at any time, regardless of whether it is the last data card or a
blank card following the data deck, is automatically transported through the read station
and punch-checked. The only indication of a punch alert on this card is the illumination of
the PUNCH ALERT indicatoron the operator's controlpanel. When a blank card is provided
by the program, a punch alert on the last data card is indicated by programmed typeout;
but a punch alert on the blank card is indicated only by the PUNCH ALERT indicator.
NO READ INSTRUCTION (R) (001000)--Occurs when a card is fed as the result of a Feed
instruction and enters the read station before aRead instruction is received by the subsystem.
No data is transmitted from thecard.
Instruction Rejected
The subsystem transmits the Instruction Rejected major status to indicate that the received
instruction is being rejected. One of the following substatuses occur on the reader to show
why the instruction is rejected. Note that only one substatus can occur at any time.
No substatus occurs on the punch subsystems.
INVALID OPERATION COD/E (R) (000001)--Occurs when the operation code is not recog-
nizable for any reason, including a parity error.
NO CARD COMMITTED (R) (000010)--Occurs when a Stack instruction is received when
no card is in transit to the stacker. The substatus is reflected only to Stack instructions.
LATE READ INSTRUCTION (R) (000100)--Occurs when a Read instruction is.received
after the card has entered the read station. This substatus is reflected only to Read
instructions.
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