1130 SYSTEM FAMILIARIZATION

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.

READYING THE IBM 1130 COMPUTING 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.

• IBM 1130 Functional Characteristics (Form A26-5881)
• IBM 1130 Input/Output Units (Form A26-5890)
• IBM 2501 Card Reader Models A1 and A2 Component Description and Operating Procedures (Form A26-5892)
• IBM Disk Pack Handling and Operator Procedures (Form A26-5756)

1131 Central Processing Unit

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:

1. Open the Console Printer top cover.
2. Pull the paper pressure rod forward (the rod with three rubber rollers that leans against the platen). If the paper is to be pin fed, this rod should remain in this position.
3. Lift up on the left and right platen pin feed pressure plates.
4. Set the paper release lever in the forward position. This lever is located on the top right rear corner of the Console Printer. If the paper is to be pin fed, this lever should remain in this position.
5. Feed the paper in from the rear and guide it under the platen. Make sure that the paper lies over and closes the forms check microswitch. This will turn off the FORMS CHECK light on the console operator panel.
6. Lay the paper back across the top of the Console Printer and guide the paper so that the holes line up with the pin feeds.
7. Close the pin feed pressure plates.
8. Looking directly down into the Console Printer, set the left and right margins. The margin settings can be read on the scale across the front of the unit.
9. Close the top cover.
10. Press CARRIER RETURN.

The Console Printer is now ready to be selected.

To ready the single disk storage drive, perform the following steps.

1. Open the single disk storage access cover located at the front of the 1131 (to the right of the console). The cover swings open to the right.
2. Grasp the handle of the access release mechanism and pull out and down.
3. Pick up the cartridge and, holding the cartridge with the IBM name towards you and on the left, insert the cartridge into the slot.
4. When the cartridge is seated, raise the access release handle to lock the cartridge into place.
5. Turn the DISK switch (leftmost switch on the panel beneath the cartridge enclosure) to the ON position. As the disk starts to turn, the DISK UNLOCK light on the console operator panel will go out.
6. Close the access cover.

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.

1442 Model 6 and 7 Card Read Punch Ready Procedure

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.

1442 Model 5 Card Punch Ready Procedure

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.

2501 Card Reader Ready Procedure

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.

1134 Paper Tape Reader Ready Procedure

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.

1055 Paper Tape Punch Ready Procedure

Pre-conditions. System power on.

Readying the Paper Tape Punch

1. Place a reel of tape in the supply pan so that the tape feeds out toward the punch die (see illustration below).
2. With the punch die facing forward (unit name plate at the front), pivot the tape pressure lever (right side of die) up and to the right.
3. Feed the tape from the supply pan over the first tape guide, under the tape tension lever, and slide the tape in under the punch die, tear guide, and tape pressure lever.
4. If the punch has a take-up reel, guide the tape over the side of the unit, over the outside of the side guide, and back up towards the front of the unit.
5. The tape now makes a half turn towards the outside and comes up and over the end guide.
6. The tape is then brought up and over to the left and wound over the top of the take-up reel.

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.

1132 Printer Ready Procedure

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:

1. Raise the top cover and disengage the PLATEN CLUTCH (set it to OUT). This knob is located on the right side of the print carriage (see illustration below).
2. Turn the outside knob on the right end of the carriage to ensure that the carriage is free.
3. Remove the spring loaded outfold guide bar (the bar across the bottom front of the forms tractor, directly behind the print wheels).
4. Open the left and right tractor pressure plates.
5. Now feed the forms from the rear of the printer under the form stop bar (three levers) and down under the tractor.
6. Use a rocking motion to feed the paper under the platen (if necessary raise the paper tension control guide located in the center of the tractor).
7. When the paper appears in front of the platen, grasp it firmly and pull it up so that it lies evenly across the tractor.
8. Place the holes in the paper on the left and right tractor pins and close the tractor pressure plates.
9. Reinsert the outfold guide bar.
10. Using the knob at the right end of the carriage, feed the paper until a crease between two sheets appears just above the print wheels.

To load the carriage control tape into the printer:

1. Raise the carriage cover directly above the platen clutch knob.
2. Raise the brush holder by pulling the lever on the right side towards you.
3. Insert a carriage control tape (channel one to the left) and close the brush holder.
4. Close the carriage cover.

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.

1403 Printer Ready Procedure

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:

1. Raise the printer cover and set the feed clutch selector knob to neutral. This knob is located on the right side of the print unit (see illustration below).
2. Unlock the print unit by pulling back on the release lever located on the left side of the unit. The print unit will swing out to the right.
3. Open the upper and lower left and right tractor guides.
4. Lift the forms up from their position below the front of the printer and lay them back across the arched rack at the top of the printer.
5. Line up the holes in the paper with the tractor pins and close all four tractor guides.
6. Close the print unit and lock the print unit release level. The ribbon drive will activate when the print unit is closed.
7. Using the PAPER ADVANCE knob located at the right end of the print unit, advance the paper until a crease between two forms is about 1/2 inch above the print position indicator bar on the print unit.

To load the carriage control tape in the printer:

1. Raise the carriage brush holder by pulling down on the lever on the right side. The carriage brush holder is located to the right and slightly above the print unit (see illustration).
2. Insert the carriage tape (channel one to the left) and close the brush holder.
3. Set the feed clutch selector knob to 6 or 8 lines per inch, whichever is desired.
4. Close the printer cover.

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.

2310 Disk Storage Ready Procedures

Pre-condition. System power on, CARTRIDGE UNLOCKED lights on the 2310 operator's panel on.

Readying the 2310 Disk Storage Drive.

1. Open the front door of the disk drive.
2. Grasp the handle of the access release mechanism of the drive to be loaded (drive 1 or 3 on top, 2 or 4 on the bottom) and pull out and down.
3. Pick up the cartridge and, holding the cartridge with the IBM name towards you and on the left, insert the cartridge into the slot.
4. When the cartridge is seated, raise the access release handle to lock the cartridge into place. If desired, load the other drive on the 2310 disk storage unit.

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.

1627 Plotter Ready Procedure

Pre-conditions. System power on.

Readying the 1627 Plotter. Load the chart paper using the following procedure.

1. Ensure the 1627 Power switch is OFF (1627 power on indicator lamp out).
2. Remove the pen assembly, if installed, by loosening the knurled knob at the bottom of the pen holder and lifting the assembly out of the carriage.
   

   Caution

   Use care when handling the pen assembly. This assembly is manufactured to close tolerances for optimum performance.

3. Rotate the right rear chart spool by hand until the drive key is pointing upward.
4. Hold the new roll of chart paper so that the key slot in the core is pointing upward. Place the roll against the spring-loaded left rear idler spool and force the spool to the left.
5. Lower the paper roll into the paper well and slide the right end onto the drive spool. Make certain the drive key engages the key slot in the core. The paper should feed out from under the roll and over the drum (see illustration).
6. Install a paper roll core on the front spool below the drum, in the same manner as with the paper roll.
7. Pull a short length of paper off the roll, slide the end under the carriage rods, under the tear bar, behind the core, and fasten it to the front side of the core with two or three short pieces of cellophane tape. Wind one or two turns of paper onto the core. Make certain the drum sprockets are properly meshed with the sprocket holes on both sides of the paper.
8. Reinstall the pen assembly in the carriage.
9. Turn the 1627 power switch to ON. The 1627 power on indicator will come on.

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.

1231 Optical Mark Page Reader Ready Procedure

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.

USING THE IBM 1130 WITH THE MONITOR SYSTEM

When all I/O units required for a job are on-line and in a ready condition, the user may proceed as follows.

Loading a Program from Card or Paper Tape

On the console:

1. Press IMM STOP (press PROGRAM STOP if the Monitor system is running).
2. Press RESET.
3. Check that the console Mode switch is set to RUN mode.
4. With the reader wired for IPL in a ready state, press PROGRAM LOAD (If the system has a 2501 and a 1442-6 or -7, ensure that the 1442 is not ready). The first record (usually a loader) is read into core starting at location zero. Instructions on this record tell the system what operation is to be performed next, usually the loading of more records from the input device.
5. When a card reader goes not ready, press reader START to read in the last card and pass control to the loaded program. This action is not required with paper tape input.

Altering or Displaying the Contents of a Selected Core Location Using the Console Entry Switches

1. With the system stopped, set the console Mode switch to LOAD.
2. Set the console entry switches to the desired fourcharacter hexadecimal core address. Switches 0-3 constitute the first hexadecimal character, 4-7 the second, etc.
3. Press LOAD IAR (the selected address is displayed in the IAR).

To display the contents of the address:

1. Set the console Mode switch to DISPLAY.
2. Press PROGRAM START.

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 alter the contents of the address:

1. Set the new data word in the console entry switches.
2. Press PROGRAM START.

To return to system operation:

1. Set the console Mode switch to RUN.
2. Press PROGRAM START.

NOTE: At a Monitor system WAIT, the address of instruction causing the WAIT is at the address displayed in the IAR minus 1.

Reading the Console Entry Switches Under User Program Control

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.

Entering Programs from the Keyboard Under Monitor System Control

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.

Keyboard Operation

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.

Console Functions While Under Monitor System Control

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.

Manual Dump of the Monitor 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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