The device failure codes for the system or initializer driver are given in table E-l.
Table E-l. Device Failure Codes
Error Code Error Description
0 Time-out error This indicates a failure to interrupt within the allotted time (requires TIMER package)
• Teletype
Operator failed to supply input within allotted time. Ignore message and continue normally.
• All other devices
Hardware failed to generate an interrupt within the allotted time.
Hardware maintenance is required.
E-l
Table E·1. Device Failure Codes (cont)
Error Code Error Description
1 lost data Data was not transferred out of the read register before the next data word appeared.
• 171111713Teletypewriter Retype the statement.
• Magnetic tape
Use the CU option to continue without processing the lost record or abort the read option.
2 Alarm This indicates the presence of an abnormal condition.
• line printer
Paper is out, paper is torn, a fuse alarm is sounded, or interlock is open. Correct the problem, and use the RP option.
• 1728-4l1 Card Reader
Interlock is open, or the chip box is full. Correct the problem, and take the RP option.
• Pseudo tape
This is a failure to fulfill a request due to mass-storage device failure.
• COSY driver
The first record is not a CSY I control record.
3 Parity error • 1711/1713 Teletypewriter
Attempt recovery by retyping the command.
• Magnetic tape
The tape is positioned after the bad record. Either take the CU option to continue processing (the bad record is ignored), or abort the operation.
• COSY driver
The last record was not an ENOl record.
4 Checksum error (FREAD binary) The sum of the header word and data in a record did not balance to zero when added to the checksum word.
• Card readers
Holes are not cleanly punched. Check cards for tears between holes.
If the cards are all right, attempt recovery; otherwise, perform the followin aerations: 9 P
E-2
Table E·l. Device Failure Codes (cont)
Error Code Error Description
1. Remove the cards from the input hopper.
2. Single-cycle the card in the transport area to the output stacker.
3. Take the last two cards in the output hopper, and put them into the input hopper ahead of the unread cards. If this is a multi card record, reread all cards in the record.
4. Ready the card reader.
5. Take the RP option.
• COSY driver
There was no end-of-file mark following the ENOl record.
5 Internal reject The 1/0 device did not send a reply to the computer within the allotted time.
• The computer cannot communicate with the device. Check the hardware address switch and the POWER ON switch. The RP option may be used if the problem has been corrected.
• COSY driver
A read on the write unit or a write on the read unit occurs before the end-of-deck mark was encountered.
6 External reject The 1/0 device has replied to the computer that it is not ready to per-form the specified request.
• The device is busy or not ready. If the device is not busy, check the ready switch. Attempt to continue by typing RP.
• COSY driver
Motion request on read unit is encountered after end-of-deck marker.
7 Compare This is a hardware problem. A compare error occurs when if faulty sig-nal is detected in the area of the punch solenoid and the echo amplifier circuits during an echo check.
• 1728-4lJ Card Reader
Remove, and discard the last card punched. Ready the device, and type RP.
• 1729-3 Card Reader
Attem t recove p ry as for card checksum error (see error code 4).
E-3
Table E-l. Device FaUure Codes (cont)
Error Code Error Description
Preread A pre read error occurs if all read amplifiers are not off during a dark check.
• 1728-4JJ Card Reader
Remove, and discard the last card punched. Ready the device, and typeRP.
• 1729-3 Card Reader
Attempt recovery as for card checksum error (see error code 4).
B Illegal Hollerith punch This error occurs when the card reader encounters a punch sequence which does not comply with the Hollerith-to-ASCII conversion table being used by the driver.
• Software recovery allows the user to locate the illegal punch by setting an ASCII? in the buffer word for the bad column. Select the reply option to continue or to abort the job and correct the mispunched cards.
9 Sequence error Cards in a record are not in sequential order.
• Abort for read operation and restore sequential order to the record.
10 Nonnegative record length The first word of a formatted binary record is the complement of the number of records in the record. The word may bea negative number, indicating that the card read was not the first card of the record.
• Attempt recovery by using the procedure for checksum error (see error code 4).
11 Read/write mode change This error indicates a switch from read or write mode.
• 172B-4lJ Card Reader
This message is issued only as a warning to the operator.
If mode switch is allowable, repeat the request using the RP option.
12 7/9 punch error The error occurs if a 7/9 punch in column 1 is read when an FREAD ASCII request is specified.
• Card reader
1. If column 1 is a 7/9 punch, there is no recovery .. Abort operation request is the wrong mode.
2. If column 1 was misread, read card as for checksum error (see error code 4).
E-4
Table E-l. Device Failure Codes (cont)
Error Code Error Description
13 No write ring An attempt was made to write on magnetic tape without write being enabled.
• Insert write ring, and use RP option.
• Pseudo tape
Attempt to write on the file which was opened to read only.
14 Not ready Ready the device, and use the RP option.
15 Not used None
16 Controller seek error The controller seek error occurs when the controller has failed to obtain the file address that was selected during a read, write, compare, or checkword operation. This is usually an indication of a positioning error.
17 Drive seek error A drive seek error occurs when the drive unit detects that the cylinder positioner moved beyond the legal limits of the device during a load address, write, read, compare, checkword check, or write address function.
18 Address This error occurs when an illegal file address obtained from the computer is detected or when the controller has advanced beyond the limits of file storage.
-'- 19 Protect fault The protect fault occurs when an unprotected controller operation attempt is made to write in a protected core location.
20 Checkword error The checkword error occurs when the controller logic detects an incorrect checkword in data read from file storage during a read, compare, or checkword operation.
21 Not used None
22 Card output stacker full Card readers
Empty output hopper, and take RP option.
24 Card feed failure The read ready station does not contain a card after a feed cycle has occurred, and the input hopper is not empty.
• Card readers
Card feed failure error can occur as a result of warped or damaged cards. If the card reader can be made ready, take the RP option.
25 Cardjam A card transport problem has occurred. It is possible for a card jam to occur in anyone or more of four read stations in the 1nB Card Reader.
CAUTION
Do not attempt to single-cycle the machine.
Damage to the card transport or punch head may result. Call customer engineering to aid in clearing the jam.
E-S
Table E·l. Device FaUure Codes (cont)
Error Code Error Description
• Jam while reading
1. Examine the transport area.
2. Remove all cards that have completely passed under the read station.
3. The cards that have not completely passed the read station have not been read. Put these cards back into the hopper. Ready the card reader, and repeat the request via the RP option. The cards must be recycled in proper sequence.
4. If the procedure results in failure, abort the read.
26 Not enough file space is available for this request to pseudo tape driver.
27 Notused None
28 Reserved None
29 Read error A read error occurred in reading the mass storage resident driver.
30 Reserved None
31 Short record Attempt was made to write a record with a length less than the standard noise-record length.
32 Notused None
33 Reserved None
34 Data interrupt A data interrupt occurred after reading 80 columns.
• Card readers
This error indicates a hardware failure, possibly due to improper card travel.
Reread the card (see the recovery procedure for error code 4).
35 End of operation An end-of-operation interrupt occurred prior to reading 80 columns.
• Card readers
Continuous failures may indicate card slippage in feeding.
Reread the card as for error code 4.
36 Reserved None
37 Wrong address Buffered data channel is using. the first-word address other than the address sent by a buffered driver.
40 Repeated the request due to an error The driver is attempting recovery.
41 Incomplete request The request was not successfully completed. The driver attempted to re eat the re uest the maximum number of times. p q
E-6
Table E-l. Device Failure Codes (cont)
EnorCode Error Description
42 Reserved None
43 Incomplete directory call of overlay read request This is due to an irrecoverable error.
44 Guarded address Error is on write.
45 Reserved None
"
46 External reject Error occurs on output.
47 External reject The error occurred on input.
(48)
Controller address error The controller address status is not the expected value.49 Drive address error The drive address status is not the expected value.
50 NolD This is an ID abort; no ID burst (1732-2).
51 Illegal density An attempt to select illegal density (1732-2) was made.
52 Reserved None
53 Reserved None
54 Reserved None
55 Reserved None
56 Mass memory buffer expired No more buffer space is available (software buffer driver).
57 Buffer transfer error Mass memory error on buffer transfer (software buffer driver) occurred.
58 Reserved None