The operating procedures for readying the system I/O units are described below. Following these procedures are instructions to the operator on the various ways of actually getting data in and out of the system and how these methods are utilized by the 1130 Disk Monitor Programming System.
This section describes the basic operator actions required to ready the IBM 1130 Computing System for operation. The paragraphs on readying the I/O units should be sufficient to allow the operator to prepare the units for selection by the system. Where necessary, illustrations have been provided to supplement the text.
Additional information regarding 1130 system and unit displays and operator functions can be found in the following publications.
Most operator action will occur at the console of the 1130 system. This console, as well as three I/O devices -- the Keyboard/Console Printer, the console entry switches, and a single disk storage drive -- are all located in or on the 1131 CPU.
System Power On. When the 1131 POWER switch is turned on, the following console operator panel lights will be on: DISK UNLOCK (no cartridge in single disk storage drive) and FORMS CHECK (if there is no paper in the Console Printer). If any other operator panel lights are on, press the RESET key.
To ready the Console Printer, perform the following steps:
The Console Printer is now ready to be selected.
To ready the single disk storage drive, perform the following steps.
When the drive comes up to speed (approximately 90 seconds), the DISK READY indicator on the console operator panel will turn on. The single disk storage drive is now ready to be selected.
Pre-conditions. POWER ON light on, CHECK light off, CHIP BOX light off, stacker not full, and covers closed.
When the system is first powered up, it is good practice to press the NPRO key to ensure that no cards are in the feed path.
Readying the Card Read Punch When all pre-conditions are met, place the cards to be processed in the hopper, face down, 9-edge first, and press reader START. When the first card is positioned at the read station, the READY light will turn on. The card read punch is now ready to be selected.
Pre-conditions. POWER ON light on, CHECK light off, and ATTENTION light off.
When the system is first powered up, the HOPPER check light is lit. Press NPRO to turn this light off. This action ensures the card path is clear.
Readying the Card Punch. When all pre-conditions are met, place blank cards in the hopper, face down, 9-edge first, and press punch START. Two card feed cycles are taken and the first card is registered at the punch station. When the punch READY light turns on, the card punch is ready to be selected.
Pre-conditions. POWER ON light on, READ CHECK light off, FEED CHECK light off, and ATTENTION light off.
When the system is first powered up, the FEED CHECK light is lit. Press NPRO to turn this light off. This action ensures that the card path is clear.
Readying the Card Reader. When all pre-conditions are met, place the cards to be processed in the hopper, face down, 9-edge first, and press reader START. When the first card is positioned at the pre-read station, the READY light will turn on. The card reader is now ready to be selected.
Pre-conditions. System power on.
Readying the Paper Tape Reader. Raise the lever located at the top right side of the read head (see illustration below). Load the reel containing the program tape on the right hand drive and lock the reel in place. The tape must be loaded so that the three-hole side is nearest the operator. With both tension arms in the up position, feed the tape across the read head and position the tape on the drive sprocket.
Position a program tape so that a delete code (all punches) beyond the program ID punched in the leader is under the read starwheels.
Position a tape without a leader (or when starting in the middle of a tape) so that the first character position to be read is one position to the right of the read starwheels.
Lower the lever on the read head, thus bringing the read starwheels in contact with the tape. Wind the leader on the take-up reel and let down the tape tension arms.
The paper tape reader is now ready to be selected.
Pre-conditions. System power on.
Readying the Paper Tape Punch
After the tape is loaded, a leader (all delete codes) may be made by first pressing and holding the DELETE key. Now press the FEED key and hold until a leader of sufficient length has been punched. Release the FEED key before releasing the DELETE key. The paper tape punch is now ready to be selected.
Pre-conditions. POWER ON light on and MOTOR switch on. The FORMS CHECK light will be on if there are no forms in the printer.
Readying the 1132 printer. To load the forms into the printer:
To load the carriage control tape into the printer:
Press the CARRIAGE RESTORE key on the 1132 operator's panel. Engage the platen clutch (set to IN) and close the printer top cover. Press printer START. When the READY light comes on, the 1132 printer is ready to be selected.
Pre-conditions. System power on. The END OF FORMS light will be on if there are no forms in the printer.
Readying the 1403 Printer. To load the forms into the printer:
To load the carriage control tape in the printer:
Press the CARRIAGE RESTORE key on the 1403 operator's panel. Continue to restore until sufficient paper has fed over the top arch to extend down the back of the printer. Open the rear cover of the printer and ensure that this paper has fed down between the forms stacker guide and the printer. If the paper has fed properly, the rollers on the forms stacker guide will keep a constant downward pull on the paper. Close the back cover.
Press CHECK RESET and printer START on the operator panel. When the PRINT READY light comes on, the 1403 printer is ready. Set the ENABLE/DISABLE switch on the 1133 to the ENABLE position (READY light on). The 1403 Printer is now ready to be selected.
Pre-condition. System power on, CARTRIDGE UNLOCKED lights on the 2310 operator's panel on.
Readying the 2310 Disk Storage Drive.
Close the front door of the disk storage unit. Turn on the START/STOP switch for the desired drives. The CARTRIDGE UNLOCKED lights will go out when the drives start to turn. When the drives come up to speed (approximately 90 seconds), the indicators showing the drive numbers will light, thus showing that the heads are loaded and the drives are ready.
When the drives are required by the system, set the ENABLE/DISABLE switches on the 2310 disk storage drives and on the 1133 to the ENABLE position (1133 READY light on). The 2310 disk storage drives are now ready to be selected.
Pre-conditions. System power on.
Readying the 1627 Plotter. Load the chart paper using the following procedure.
Use care when handling the pen assembly. This assembly is manufactured to close tolerances for optimum performance.
NOTE: The pen is down when the power is off; therefore, the pen assembly should be installed with the carriage over an area outside the "recording area". If the pen does not raise when power is turned on, turn the pen switch to DOWN, then to UP.
With the pen in the UP position, use the drum (x axis) and carriage (Y axis) controls to position the pen for the first plot. The 1627 plotter is now ready to be selected.
Pre-conditions. System power on, RESET light on, and READ light off. SYSTEM STOP light on if the CPU is stopped.
Readying the Optical Mark Page Reader. Place the data sheets in the hopper with the side to be read facing up and the top edge positioned to feed first. Set the FEED MODE switch to ON-DEMAND. The settings of the other selector switches on the operator console are dependent on the data being read.
Press PROGRAM LOAD on the 1231 operator's console. This action clears the delay line and conditions the machine for program loading. The PROGRAM LOAD light turns on. Press 1231 RESET. This causes the hopper to raise to the ready position. The RESET light turns off and the 1231 START light turns on. Press 1231 START. The first data sheet in the hopper is fed through the 1231, loading the delay line. The first data sheet is now in the stacker. The PROGRAM LOAD light turns off. Press 1231 START. The 1231 START light turns off.
With all lights off on the 1231 operator's console (the SYSTEM STOP light may be on), the 1231 optical mark page reader is ready to be selected.
When all I/O units required for a job are on-line and in a ready condition, the user may proceed as follows.
On the console:
The contents of the selected location is displayed in the Storage Buffer Register. Successive pressing of the PROGRAM START key will display consecutive core locations.
To return to system operation:
NOTE: At a Monitor system WAIT, the address of instruction causing the WAIT is at the address displayed in the IAR minus 1.
The setting of the console entry switches can be read by an XIO read instruction at any time during the execution of a user-written stored program. The device code of the instruction is set to 00111.
A single Monitor control record or an entire program including all required control records and data records can be entered from the 1130 Keyboard using the Monitor System. Control is passed to the Keyboard when a // TYP Monitor control record is read from the principal input device.
Control is returned to the principal input device when a // TEND or // JOB record is entered from the keyboard.
When the // TYP Monitor control record is read, the Console Printer performs a carrier return and the KB SELECT light on the Keyboard operator's panel turns on. The system is now ready to accept input from the Keyboard.
Enter all control records in the correct format. Use the space bar for blanks. The records are printed on the Console Printer as they are entered. Press EOF to end each record. An NL (new line) character is entered, the carrier is restored to a new line, and the keyboard is reselected. This sequence of events continues until a // TEND or // JOB record is entered. Pressing EOF then returns control to the principal input device.
Up to 80 characters can be entered in each record. If an error is made when entering a record from the Keyboard, the user can elect to backspace and correct the entry or re-enter the entire record.
Backspace. When the backspace key () is pressed, the last graphic character entered is slashed and the address of the next character to be read is decremented by +1. If the backspace key is pressed twice consecutively, the character address is decremented by +2, but only the last graphic character is slashed. For example, assume that *DELET has been entered and the backspace key is pressed three times. The next graphic character replaces the L, but only the T is slashed. If the characters FINE are used for replacement, the paper would show , but *DEFINE would be stored in the buffer.
Re-entry. When the ERASE FIELD key is pressed, a character interrupt signals the interrupt response subroutine that the previously-entered Keyboard record is in error and is to be re-entered. The subroutine prints two slashes on the Console Printer, restores the carrier to a new line, and prepares to replace the old record in the I/O area with the new record. The new record overlays the previous record, character by character. Blanks are placed in the buffer following the NL character which terminated the new record.
PROGRAM STOP Key. Pressing this key causes a level 5 interrupt and an entry to the PROGRAM STOP key trap providing there are no user-written device subroutines associated with level 5 currently in core. The trap consists of a WAIT and a branch. When the PROGRAM START key is pressed, the interrupt level is turned off and execution resumes following the point of the level 5 interrupt.
The PROGRAM STOP key trap allows the user to stop the entire 1130 system with the ability to continue execution without disturbing the system status or the contents of core storage.
If a higher interrupt level is being serviced when the PROGRAM STOP key is pressed, the PROGRAM STOP key interrupt is masked until the current operation is completed.
INT REQ. Pressing the Interrupt Request key causes the current job to be aborted. Control is returned to the Supervisor, which then searches for the next JOB record in the input stream.
IMM STOP. Do not press IMM STOP when running under Monitor system control. The contents of a system cartridge can be destroyed, necessitating a regeneration of the system.
If a problem occurs during the execution of a core load and the user desires to dump core storage, the dump entry point in the Skeleton Supervisor can be entered by a manually executed transfer to the dump entry entry point plus one (location $DUMP+1). A dump of the entire contents of core storage is given in hexadecimal and the dump program (see Supervisor Core Dump Program) executes a CALL EXIT thereby terminating the execution of the core load in progress.
If the dump was necessitated by the introduction of bad data in a Monitor system program, the system may loop rather than perform the dump. If this occurs when DISKZ is in use, the user must manually clear $IOCT and $DBSY before reinitiating the dump.
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