Digital Equipment PDP-10 User manual

BA10 HARD COpy CONTROL

DEC-10-12AA-D
BA10
HARD COPY CONTROL
MAINTENANCE MANUAL
July 1968
DIGITAL EQUIPMENT CORPORATION. MAYNARD, MASSACHUSETTS

Copyright 1968 by Digital Equipment Corporation

1.1
1. 1. 1
1. 1.2
1. 1.3
1.2
1 .2. 1
1.2.2
1.2.3
1.2.4
1.3
1.4
2. 1
2. 1•1
2.1.2
2.2
2.3
2.4
2.5
2.5. 1
2.5.2
2.5.3
2.5.4
2.5.5
2.5.6
2.6
2.6. 1
2.6.2
2.6.3
CONTENTS
CHAPTER 1
INTRODUCTION
Control Descriptions
CR10 Card Reader Control
LP10 Line Printer Control
XY10 Plotter Control
Physical
Characteristics Descriptions
BA10 Unit
CRlO
Card Reader
LPlOA/LP10B Line Printers
XY 10 Incrementa I Plotter
Equ ipment Spec i fi cat ions
Reference
Material
CHAPTER 2
OPERATING AND INSTALLATION INFORMATION
BAlO Controls and Indicators
Power Control Panel
BA10
Indicator Panel
CRlO Controls and Indicators
LP10 Controls and Indicators
XYl0 Controls and Indicators
Operating Notes
BA 10 Power Appl ication
CR10 Operation
LP10 Operation
XYlO Operation
Device Selection
I/O Instructions
Programming Notes
CRlO Programming Notes
LP10 Programming Notes
XYlO Programming Notes
iii
Page
1-1
1-1
1-2
1-3
1-4
1-4
1-5
1-6
1-7
1-8
1-9
2-1
2-1
2-2
2-6
2-8
2-8
2-9
2-9
2-9
2-10
2-10
2-11
2-11
2-13
2-13
2-18
2-25

CONTENTS (Cont)
Page
2.7 InstaIlation
2-27
2.7.1 Device Selection Cards
2-27
2.7.2
BA10 I/o Bus Connections 2-31
2.7.3 CR10 Device Cables 2-31
2.7.4 LP10 Device Cables 2-31
2.7.5
XY10 Device Cables
2-33
CHAPTER 3
CRlO THEORY OF OPERATION
3. 1 Block Diagram Analysis 3-1
3. 1•1
CRlO Card Reader Cables 3-3
3.2 Card Reader Control Logic Operation 3-5
3.2.1
Power Turn-On and Initialization Cycle 3-5
3.2.2
Program Interrupt Cycle 3-7
3.2.3 Pick Cycle
3-8
3.2.4
Read Data Cycle
3-8
3.2.5
Data Transfer Cycle
3-11
3.2.6
End-of-Card Cycle
3-12
3.2.7
Fault Location Cycle
3-13
3.2.8
End-of-Fi Ie Cycle
3-14
3.2.9
Hopper Empty/Stacker Full Cycle
3-14
3.2.10
Card Offset Cycle
3-15
3.2.11
Clear Cycle
3-15
CHAPTER 4
LP10 THEORY OF OPERATION
4. 1 Block Diagram Analysis 4-1
4.2
Line Printer Control Logic Operation
4-2
4.2.1
CONO/CONI Operations
4-2
4.2.2
Character Handling
4-3
4.2.3
Decoder
4-8
iv

CONTENTS (Cont)
Page
CHAPTER 5
XY10 THEORY OF OPERATION
5. 1 Block Diagram Analysis 5-1
5. 1•1 Plotter Logic
Operation
5-3
5.1.2
Power Turn-On
5-3
5.1.3 CO NO Instruction
5-4
5.1.4
CONI Instruction 5-4
5. 1.5
DA TAO Instruction
5-5
5. 1.6
Operation of DAT AO 5-5
5.1.7
Logic Clear
5-7
5.1.8
DECtape Logic 5-7
CHAPTER 6
MAINTENANCE
6.1 Equipment Required 6-1
6.2
Preventive Maintenance 6-1
6.2.1 Mechani ca I Checks
6-2
6.2.2 Power Supply Check 6-2
6.2.3 Margin Checks
6-2
6.2.4 Card Reader Oi I Supply Check 6-3
6.2.5 XY10 One-Shot Adjustments
6-3
6.3
Corrective Maintenance 6-4
6.3. 1 Preliminary Investigation 6-5
6.3.2 System Troubleshooting
6-5
6.3.3 Module Troubleshooting 6-7
6.3.4 Repair
6-8
6.3.5
Validation Test
6-8
6.3.6 Log Entry
6-8
CHAPTER 7
ENGINEERING DRAWINGS
7. 1 Drawing Terminology 7-1
7.2 Logic Symbols
7-2
7.3
Logic Levels
7-2
v

CONTENTS (Cont)
Page
7.4
FLIP CHIP Pulses
7-4
7.5
Engineering Drawing Lists
7-5
ILLUSTRATIONS
1-1 CRlO
Card Reader System Configuration
1-1
1-2
LPlO Line Printer System Configuration
1-3
1-3
XYlO Plotter Control System Configuration
1-3
1-4
Type BA10 Unit Assembly Locations
1-4
1-5
CRlO Card Reader
1-5
1-6
LP10A Line Printer
1-6
1-7
LPlOB Line Printer
1-7
2-1
Type 844 Power Control Panel 2-1
2-2
BA 10 Cabinet Indicator Panel 2-2
2-3
Card Reader Controls and Indicators 2-6
2-4
DATAl Data Word
2-13
2-5 CO NO Conditions Word
2-16
2-6 CONI Status Word 2-17
2-7
DATAO Data Word
2-25
2-8
CONO Conditions Word
2-26
2-9 CONI Status Word
2-26
2-10 Card Reader Device Number Selection Cards
2-28
2-11 Line Printer Device Number Selection Cards
2-29
2-12 Plotter Device Number Selection Cards
2-30
2-13 Card Reader Power Wiring
2-32
3-1
Simplified Block Diagram of the CRlO Card Reader 3-1
3-2 Card Reader Interface Line Circuit
3-10
4-1 LP10 Line Printer System 4-1
5-1
Simplified Block Diagram of the XYlO Plotter System
5-1
7-1 DEC Standard Logic Symbols
7-3
7-2 R-Series Pu Ise
7-4
TABLES
1-1
Equ ipment Spec ifications
1-8
1-2 Environmental Requirements
1-9
vi

TABLES (Cont)
Page
2-1 Type 844 Power Control
Panel, Controls and Indicators
2-2
2-2
Card Reader Indicators
2-3
2-3 Line Printer Control Log ic Indicators
2-4
2-4
Plotter Indicators
2-5
2-5
Card Reader Controls and Indicators
2-6
2-6
Card Codes
2-14
2-7 PDP-l0 ASCII (Modified USASCII X3)
2-20
2-8
Vertical Spacing Characters
2-24
3-1 I/o Bus Interface Cable (Partial Listing) 3-3
3-2
Card Reader Interface Cable
3-4
5-1 I/o Bus Interface Cable
5-2
5-2
Plotter Interface Cable
5-2
6-1 Increment Times
6-4
7-1
BA10 Engineering Drawings
7-5
7-2
CR10 Engineering Drawings
7-5
7-3
LPlO Engineering Drawings
7-5
7-4
XYl0 Engineering Drawings 7-6
vii

BA10 Hard Copy Control Unit

CHAPTER 1
INTRODUCTION
The BAI0 Hard Copy Control manufactured by Digital Equipment Corporation Maynard, Mass.
is an optional unit in the PDP-I0 system and contains the control logic for the CRI0 Card Reader, LPI0
Line Printer, and the XYI0 Plotter. This manual, when used in conjunction with the documents refer-
enced, provides the information that is necessary to install, operate and maintain the BA10 unit.
The level of discussion in this manual assumes that the reader is familiar with DEC logic,
signals, and notation, the KA 10 Processor and its operations and the operation of the peripheral devices
controlled by the BA 10.
Engineering drawings referenced in this manual are located in the PDP-lO Peripheral
Engineering Drawing Set, Volume IV (BA 1O-DA 10).
1.1 CONTROL DESCRIPTIONS
A general description of the CRl 0 Card Reader Control, the LP10 Line Printer Control and
the XY10 Plotter Control is contained in the following paragraphs.
1 •1 . 1
CRI0 Card Reader Control
The Type CRI0 Card Reader Control interfaces the KAI0 Processor with one Soroban Compact
Card Reader, Model ERD and allows the information on standard SO-column punched cards to be trans-
ferred to the processor through the input/output bus at a rate of up to 1000 cards per minute. The
following description of the card reader system refers to Figure 1-1.
110 BUS
DATA
KA10
--
STATUS
PROCESSOR
110
INSTRUCTIONS
PRIORITY INTERRUPT
BA10
--
CARD READER
CONTROL
LOG IC
(CR 10)
INTERFACE
CABLE
CONTROL
STATUS
DATA
CR10
READER
Figure 1-1 CR10 Card Reader System Configuration
Status information is routed from the card reader to the card reader control logic via the card
reader interface cable. In the card reader control logic, a series of status gates are conditioned
1-1

according to the contents of the status register and the status information is fetched by the central
processor after a program interrupt request. From the status information the central processor determines
system status and performs the required I/O instruction.
After loading the card reader hopper, the operator starts card reader operati ons at the card reader.
Control signals from the card reader condition the card reader control logic to send a program interrupt
request to the central processor via the I/O bus, and status si gnals condition the status gates in the card
reader control logic. The program in the central processor performs a CONI instruction addressing the
card reader to fetch the status information. The status information indicates that the card reader is in
the ready to read condition. At this time, the central processor performs a CONO instruction addressing
the card reader to pi ck a card from the card reader hopper and cl ear the program interrupt.
The first card column is read photoelectrically by the card reader, the data is strobed into
temporary
storage in the card reader buffer register contained in the control logic, and a program
interrupt request is sent to the centra I processor• To serv ice the program interrupt request, the centra I
processor again performs a CONI instruction to fetch the status information which indicates the presence
of data in the card reader buffer register. At this time, the central processor performs a DATAl in-
struction addressing the card reader to fetch the data from the card reader buffer register and clear the
program
interrupt.
The read data and data transfer procedures are repeated for each card column until the 80
card columns are read. Shortly after the last card column is read, an end of card status signal is routed
to
the central processor when the status information is fetched. The central processor picks the next
card under program control and performs the data transfer procedures as explained above. Under normal
operating conditions, the punched cards are read on demand until the hopper is empty or a malfunction
is detected.
If the card reader detects a malfunction, or if the card reader hopper becomes empty, or
the stacker becomes full, the status information indicates these conditions to the central processor and
the card reader operation is halted when the end of the card is reached. The normal read operation is
not resumed until the fault is corrected, the card reader CLEAR switch is depressed, and the card reader
START sw i tch is depressed.
1•1 .2
LP10 Line Printer Control
The Type LP10 Line
Printer Control interfaces the KA10 Processor to either a LP10A or
LP10B Line Printer. The LP10A allows printing of up to 300 lines per minute and the LP10B allows
printing of up to 600 lines per minute. Both are Anelex printers which use 64-character fonts and print
132-column lines. Figure 1-2 depicts a typical system configuration for the LP10 Line Printer Control.
1-2

110 BUS
STATUS
KA10
--
DATA
PROCESSOR
CONTROL
PRIORITY
INTERRUPT
BA10
--
LINE
PRINTER
CONTROL
LOG I C
(L Pl0l
INTERFACE
CABLE
CONTROL
DATA
STATUS
L P l0AIB
LIN E
PRINTER
Figure 1-2 LP10 Line Printer System Configuration
Under program control, the LP10 line printer control logic accepts data from, or transmits
status
indications to, the central processor. Each data word may include characters to be printed,
control characters causing printing and/or spacing, or illegal characters (codes not identified by the
Iine printer). Printable characters and format control signals are sent to the Iine printer at a rate
determined by the printer. Illegal character codes are ignored. Five characters at a time are trans-
ferred from the processor, and are unpacked and transm itted to the pri nter withoutfurther program i nter-
vention. The line printer informs the program that it requires the program's attention by means of the
PDP-l0 priority interrupt system. Status indications are done (ready for data), busy (line printer busy
performing some
function), and printer error (line printer is off line, interface cable disconnected,
pri nter out of paper, etc.).
1 .1 .3 XY10 Plotter Control
The Type XY10 Plotter Control is used to interface the KAla Processor to a CalComp Digital
Incremental
Plotter, Model 502, 518, 563 or 565, or to a similar incremental X-V plotter which uses
the same type of data and control information. The assoc iated plotter a Ilows data information to be
graphically displayed on paper.
Figure 1-3 shows a typical system configuration for the XY10 Plotter Control.
1/0 BUS
DATA
KA10
--
STATUS
PROCESSOR
CONTROL
PRIORITY INTERRUPT
BA10
--
PLOTTER
CONTROL
( XYlOl
INTERFACE
CABLE
CONTROL
DIGITAL
INCREMENTAL
PLOTTER
Figure 1-3 XY10 Plotter Control System Configuration
1-3

All plotter operations except the setting of coordinates at which the plotting operation begins
are controlled by the plotter control logic and the central processor. The program in the processor per-
forms a CONI instruction, addressing the plotter, to fetch status information from the status register.
This information is transferred to the processor via the I/o bus and indicates whether the plotter is ready
to accept data from the processor. When the status information indicates that the plotter is ready to ac-
cept data, the processor performs a CO NO instruction to assign a priority interrupt channel. A DAT AO
instruction is performed to specify one or more of the following functions: raise or lower the plotter pen;
move
the pen carriage to the left or right; move the paper drum up or down. These functions are accom-
plished by setting associated flip...,flops in the plotter control logic.
1.2 PHYSICAL CHARACTERISTICS DESCRIPTIONS
Descriptions of the BA10 Unit and associated devices are contained in the following para-
graphs. For more detailed information on the card reader, line printer, and plotters refer to the device
manuals listed in Section 1.4.
1 .2. 1 BA10 Unit
The BA10
Unit, a standard DEC CAB-9B cabinet, consists ofthe assemblies shown in Figure 1-4.
Access doors, mounted on both front and rear of the unit, are held closed by magnetic latches.
[ INDICATOR
PANEL
1
LOGIC
TRANSFORMER
MOUNTING PANEL
50"-'
19438
LOGIC
MOUNTI NG PANEL
19438
728 OR 728A
POWE R SUPPL Y
LOGIC
MOUNTING PANEL
19438
LOGIC
MOUNTING PANEL
728 OR 728A
POWE R SUPPLY
19438
FAN
ASSEM8LY
844 POWER
CONTROL
FRONT
REAR
Figure 1-4 Type BA10 Unit Assembly Locations
1-4

The Type 844 Power Control and Type 728 Power Suppl ies are mounted inside the rear door on
on
a plenum door that is latched at the top by a spring-loaded pin. Module mounting panels are mounted
behind the front door with the wiring side facing outward.
A fan at the bottom of the cabinet draws cooling air into the cabinet through a dust filter.
This air is passed over the modules by a blower assembly mounted below the module mounting panel,
and is exhausted through an opening at the top of the cabinet.
1 .2.2 CR10 Card Reader
Fi gure 1-5 CR 10 Card Reader
The
CR1 0 Card Reader consists of a Model ERD Compact Card Reader manufactured by
Soroban
Engineering, Inc., Melbourne, Florida, card reader control logic mounted in the BA 10, and
the necessary interface cabling. The Soroban Model ERD Compact Card Reader, shown in Figure 1-5,
is a high-performance desk top unit that end feeds standard 80-column punch cards on demand at a rate
of approximately 1000 cards per minute (60 Hz power) or 830 cards per minute (50 Hz power). It
includes a card handling deck with a supply hopper, photoelectric read station and stacker hopper.
The connector modules of the card reader control cable are screwed into CD19 and CD20 of the BA10
and the power cable for the card reader is wired into the power control of the BA10.
1-5

There are two configurations of the card reader system available; the Type CR10A is a 60 Hz
configuration and the Type CR10B is a 50 Hz configuration. With the exception of timing and power
wiring, both configurations are similar. However, the operating times of the CR1 OB are slower through-
out when compared to the operating times of the CR1 OA. The differences in the power wiring of the
two configurations are shown on drawing D-IC-BA10-0-AC.
1.2.3 LP1 OA/LP1 OB Line Printers
The LP10A Line Printer System comprises a Model 4000 Line Printer shown in Figure 1-6 and
manufactured by Anelex Corporation, Boston, Massachusetts, Iine printer control logic mounted in the
BA10 cabinet, and the necessary interface cabling. The LP10B System consists of the same units except
that the Anelex Corporation's Model 5000 Line Printer, shown in Figure 1-7, replaces the Model 4000.
Figure 1-6 LP10A Line Printer
1-6

Figure 1-7 LP10B Line Printer
The Anelex line printers print 132-column lines and are equipped with from 64- to 128-
character fonts. LP10A printers print up to 300 lines per minute, while LP10B printers print up to
600 lines per minute. Both series printers are housed in free standing, console-type cabinets. Controls
and indicators used during normal operations and for certain test functions are located on control panels
on the front of and inside the cabinets.
1.2.4
XY10 Incremental Plotter
The XY10 Plotter System consists of a digital incremental plotter, plotter control logic
mounted in the BA 10 unit, and the necessary interface cabl ing. The most common plotters used with
the XY10 are Models 563, 565, 502, or 518, manufactured by CaIComp*, however, other plotters
using similar control information may be used. These electromechanical plotter mechanisms are high
precision units. Speed and paper size vary with the model used. Interfacing between the plotter and
the plotter control logic is accomplished through an 8-line cable with a Cannon Connector Type
SK-19-21C at one end and a DEC Type W028 Cable Connector at the other.
Typical plotter mechanism power requirements are: 105 to 125V, 50 or 60 cycles single
phase (1.5A at 115V). Primary power is applied through a line cord supplied with the plotter.
*For additional information on the CalComp plotters specified, refer to the manuals Iisted in Section 1 .4.
1-7

1.3 EQUIPMENT SPECIFICATIONS
Table 1-1 lists the general specifications for the BA10 and referenced peripheral devices
and Table 1-2 lists the environmental requirements.
Component
Voltage
(ac)
BA10
See
Cabinet note
Card
Reader
LP10A
See
note
LP10B
See
note
Current
(A)
Nominal
@115V
20
14
20
Table 1-1
Equipment
Specifications
Power Heat
Dissipation Dissipation Dimensions
(W)
(Btu/Hr)
(in. )
Height
69
600 2046 Width
19-3/4
Depth
27
Height
35
1500 5100 Width
35
Depth
32
Height
50-3/4
1500
5100
Width
42-5/8
Depth
29
Height
55
2500
6750
Width
56
Depth
30
NOTES
Service
Clearance
(in. )
Front
36
Rear
36
Front
36
Rear
36
Front
36
Rear
48
Sides
36
Rear
36
PDP-10 systems normally operate from 3-phase (WYE
connected), 115V ± 10%,60 Hz ± 2 Hz, or 230V± 10%,
50 Hz ± 2 Hz phase to neutral. Individual devices have
separate power cords using 3-wire 30A (single phase)
Hubbe" Twistlock Connectors. An earth/ground connection
must be suppl ied through the power cord in addition to the
ground bus requirements.
1-8
Weight
(Ib)
250
1100
1600
Signal
Cable
Length
(ft)
N/A
25
25
25

NOTES (Cont)
Equipment for use
within North America will have the
following power cord cap (male plug) supplied on the
end of 25 ft line cord.
3-wire Hubbel #3331 (mates with Hubbell #3330)
Equipment for use outside of North America will have a
pressure-type terminal strip suitable for 8 to 18 gauge wire
enclosed inside of the equipment's power control.
Table 1-2
Environmental Requirements
Component
Operating Temperature
Storage Temperature Humidity
(min-max F)
(min-max F) (relative min-max)
LP10A
60 to 95 o
to 125
40% to 80%
LP10B
60 to 95 o
to 125
40% to 80%
1 .4 REFERENCE MATERIAL
The following documents contain material supplementing the information in this manual.
These documents may be obtained from the nearest DEC office or from
Title
Digital Logic Handbook (C-105)
PDP-10 Maintenance Manual
Volume I DEC-10-HMAA-D
Volume II DEC-10-HMBA-D
Volume III DEC-10-HMCA-D
PDP-10 System Reference Gu ide
DEC-10-HGAA-D
Digital Equipment Corporation
146 Main Street
Maynard, Massachusetts
Description
Specifications and descriptions of each FLIP CHI P
module, plus simplified explanation of the selection
and use of these modules in numerous appl ications
Complete information on the internal operation of
PDP-10 logic, memory, basic input/output, and
processor options
Programming and operating information for the
computer, including brief instruction on the Type
CR10 Card Reader, LP10 Line Printer and XY10
Plotter
1-9

Title
Instruction Manual for the Anelex
Series 4000 Printer System
I ns truction ManuaI for the Ane I ex
Series 5000 Printer System
PDP-10 Installation Manual
Instruction Manual for the
CalComp Digital Incremental
Plotter, Models 563, 565, 502,
or 518
Technical Manual for the Soroban
Compact Card Reader Model ERD
Description
Complete operating instructions, principles of
operation, and maintenance information for the
Anelex Series 4000 Line Printer
Complete operating instructions, principles of
operation, and maintenance information for the
Anelex Series 5000 Line Printer.
General information on system components necessary
for planning layout and installation
Complete operating instructions, principles of
operation, and maintenence instructions for the
CalComp Digital Incremental Plotter used.
Complete operating instructions, principles of
operation and maintenance instructions for the
Soroban Engineering, Inc. Card Reader Model ERD
1-10