Schneider Electric TSXPCM002, Integral PC module User Guide
Schneider Electric TSXPCM002, Integral PC module, is open-structured, allowing development and integration of application programs under DR-DOS. You can use it to build microprocessing functions into control system applications. Here are some examples:
- Special-purpose operator dialogue
- Local data storage
- Special-purpose communications
- Complex calculation and processing
Reklamë
Reklamë
___________________________________________________________________________
TSX PCM 00 2
Coupleur PC intégré
TSX PCM 00 2
Integral PC Module
Page 3
Page 29
E
N
G
L
I
S
H
F
R
A
N
C
A
I
S
___________________________________________________________________________
1
___________________________________________________________________________
TSX PCM 00 2
Integral PC module Page 29
E
N
G
L
I
S
H
___________________________________________________________________________
29
________________________________________________________
Contents
___________________________________________________________________________
General description
Page
33
33
34
34
35
__________________________________________________________________________________________________
Module installation 36
36
36
37
37
37
37
38
E
N
G
L
I
S
H
__________________________________________________________________________________________________
Functions 39
39
39
39
40
40
41
42
__________________________________________________________________________________________________
Operation 43
48
49
49
50
43
44
44
45
___________________________________________________________________________
31
I
S
H
E
N
G
L
________________________________________________________
Contents
___________________________________________________________________________
Appendix
5.3 The TSX BMP 010 module
Page
52
53
54
55
56
52
52
52
53
___________________________________________________________________________
32
General description 1
___________________________________________________________________________
1.1
Description
The TSX PCM 00 2 PC compatible module for Model 40 Series 7 modular PLCs offers the user an open structure for the development and integration of application programs under DR-DOS.
Thus the developer has a standard environment in which he can build microprocessing functions into his control system application.
The following types of application are suitable for integration in this PC compatible module :
• Special-purpose operator dialogue
• Local data storage
• Special-purpose communications
• Complex calculation and processing
E
N
G
L
I
S
H
___________________________________________________________________________
33
1 General description
___________________________________________________________________________
E
N
G
L
I
S
H
1.2-1 TSX PCM 00 2 module
This unit is in single module format and is composed of the following elements :
1 Metal case providing mechanical protection of the electronic circuits and protection against electromagnetic interference.
TSX PCM 00
2 Socket for user memory cartridge.
3 User memory cartridge locking device.
!
RUN
4 Status LEDs (see section 3.4) :
- RUN (green)
- CPU (red)
- MEM (red)
5 I/O status LED (red), illuminates when there is no terminal connected.
6 RESET button (can only be operated by a small sharp pointed object), is used to re-initialize the module.
7 26-pin female connector for attaching a display terminal or a TSX BMP 010 module.
CPU
MEM
I/O
RST
4
3
4
2
1
7
5
6
The rear panel of the module is equipped with a mechanical locating device which eliminates any risk of positioning error while installing or changing the module.
___________________________________________________________________________
34
General description 1
___________________________________________________________________________
1.2-2 User memory cartridge
The user memory cartridge is identical to those used by PLC processors. It comprises :
1 Extraction tab, colour coded to indicate memory type :
• RED : RAM memory
• BLACK : EPROM memory.
2 Opaque cover to protect the EPROM window.
3 Locating device.
4 Identification label.
4 3
16
BITS
1 2
Two types of memory are used :
• Battery-backed RAM memory : this live memory may be loaded from a PC terminal :
- in connected mode via the PLC processor,
- in local mode using the TSX TPE 01 cartridge programmer.
When the memory cartridge is not powered-up, data backup is maintained by a battery
(5 weeks maximum).
E
N
G
L
I
S
H
• EPROM memory : this may be loaded from a PC terminal in local mode using the
TSX TPE 01 memory cartridge programmer.
Any writing of new data onto the cartridge requires that its previous contents are totally erased, using the TSX EPE 1 or 2 EPROM eraser.
The following cartridges can be mounted on the module.
Type
RAM
RAM
RAM
RAM
EPROM
EPROM
EPROM
Reference
TSX RAM 128 16
TSX RAM 256 16
TSX RAM 512 16
TSX RAM 1024 16
TSX RPM 128 16
TSX RPM 256 16
TSX RPM 512 16
Capacity
128 Kwords or 256 Kbytes
256 Kwords or 512 Kbytes
512 Kwords or 1 Mbyte
1024 Kwords or 2 Mbyte
128 Kwords or 256 Kbytes
256 Kwords or 512 Kbytes
512 Kwords or 1 Mbyte
___________________________________________________________________________
35
E
N
G
L
I
S
H
2 Module installation
___________________________________________________________________________
2.1 Choice of Module Position and Locating Device Code
_______________________________________________________________________________________
2.1-1 Available Module Positions
The TSX PCM 00 2 may be positioned in the PLC base rack according to the following table:
Rack
Basic Rack with processor
• TSX/PMX 47-40
Rack Type Available Positions and
Maximum Number of Modules
Positions 0 to 7:
1 Module max. (1)
Basic Rack with Processor
• TSX/PMX 67 425/455 (V5)
Basic Rack with Processor
• TSX/PMX 87 425/455 (V5)
• TSX/PMX 87 410/420 (V4)
TSX RKN 82
TSX RKN 52
TSX RKN 82W11
TSX RKN 82
TSX RKN 52
TSX RKN 82W11
TSX RKN 82
TSX RKN 52
TSX RKN 82W11
Positions 0 to 7:
2 Module max. (2)
Positions 0 to 7:
2 Module max. (2)
Basic Rack with Processor
• TSX/PMX 107 425/455 (V5)
• TSX/PMX 107 410/420 (V4)
TSX RKN 82F
TSX RKN 82FD
TSX RKN 82FW11
Positions 0 to 7:
4 Modules max. (2)
Extension Rack (Direct)
Extension Rack
(Local or Remote)
Extension Rack
(Local or Remote)
TSX RKE 8
TSX RKE 7
TSX RKE 8W11
TSX RKS 8
TSX RKS 8W11
TSX RKN 8
TSX RKN 5
TSX RKN 8W11
(1) No module with P47 400/405 processor.
(2) 1 module with P67 410/420 (V4) processor.
(3) Limited by the rack bus (simplified bus).
None (3)
None (3)
Any Position (2)
___________________________________________________________________________
36
Module installation 2
___________________________________________________________________________
2.1-2 Locating device coding
Code
Mechanical
3 digit decimal code, defined by the three female locating keys at the rear of the module.
Program
Code entered during
I/O configuration (XTEL V5) (1)
(1)
TSX PCM 00 2
714
714
For an XTEL tool version prior to V5, the code to be entered is that of the family of PCM modules, that is 62.
____________________________________________________________________
I
S
H
E
N
G
L
2.2-1 Connecting the module
It is essential to connect or disconnect the module with the power off. Any attempt to make or modify connections while powered-up can result in permanent damage to the unit.
_______________________________________________________________________________________
2.2-2 Connecting a display terminal
For this connection, a TSX CMMxx0 cable should be used (xx represents the length of the cable in metres : 03, 10, 30 or 40). The cable is designed to ensure proper connection of the video, keyboard and simplified serial lines.
TSX PCM 00
!
RUN
CPU
MEM
I/O
RST
Pupitre CPX xxx
TSX CMM xx0
___________________________________________________________________________
37
2 Module installation
___________________________________________________________________________
2.2-3 Connecting a standard peripheral
To connect a standard peripheral such as a monitor, keyboard, printer or modem, the
TSX BMP 010 interface module must be used. The interface module may be located :
• In any position in a Series 7 PLC, using the power supply from the bus.
• In an XGS-R74 or XGS-R71 rack. In this case, the interface module must be connected to the mains supply from the front panel.
Locally sited interface module
As long as the TSX BMP 010 is not remotely sited, it may be connected to the module by a TSX CMB xxx cable. In this case the maximum distance allowed between the module and the operator dialogue module is 1.5 metres. This permits a full serial
(modem) interface.
E
N
G
L
I
S
H
TSX BMP 010
TSX CMB xxx
Remotely sited interface module
In order to remotely site the TSX BMP 010, it is necessary to use the TSX CMM xx0 cable (where xx = 03, 10, 30 or 40 metres). The remote connection of a modem is not supported.
TSX BMP 010
BMP 010
OK
VIDEO
VGA
RS232C
(COM1)
RS232C
(COM2)
PCM
OK
TSX CMM xx0
Mains supply
___________________________________________________________________________
38
Functions 3
___________________________________________________________________________
3.1-1 General
TSX PCM 00 2 modules are PC compatible. In common with all intelligent modules they directly access the complete bus in order to communicate with the PLC processor.
For this, the module integrates :
• Bus interface.
• Shared memory.
_______________________________________________________________________________________
3.1-2 Hardware characteristics
Module
Processor
TSX PCM 00 2
80386 SX
25 MHz
512K bytes
4 M bytes
Basic RAM memory
Paged RAM memory
(Standard EMS 4.0)
BIOS ROM memory
System memory
(SYSTEM DISK)
Application memory
(RAM DISK)
Keyboard interface
Simplified isolated RS 232 serial link (printer)
128K bytes
1M bytes
2 Mb max cartridge
YES
COM 1
Complete non-isolated RS 232 serial link (modem)
Video
COM 2
VGA colour
I
S
H
E
N
G
L
___________________________________________________________________________
39
3 Functions
___________________________________________________________________________
The software structure of the module is similar to that of a PC compatible microcomputer.
Typically it comprises :
• A systems and services part, common to all the applications which can be executed on the module.
• An application part, which is the responsibility of the systems integrator, or an application specific to the Telemecanique range of products.
E
N
G
L
I
S
H
_______________________________________________________________________________________
3.2-1 Operating system and services
This software is resident in the module and manages the hardware :
• BIOS
The BIOS is located in the BIOS ROM memory and manages system start-up when the module is powered up (self-tests). In addition, it manages all the physical I/O such as keyboard, video, serial link, pseudo disks (SYSTEM/RAM DISK) and shared memory.
• Operating system and utilities
This software is located in the system memory (SYSTEM DISK). It comprises the operating system DR DOS 5.0 and the DOPTOOLS utility (see later).
___________________________________________________________________________
40
Functions 3
___________________________________________________________________________
Each time the module is powered up or initialized, it executes a series of self-tests :
• It executes the first tests which, in the case of a detected failure, stop the microprocessor, thus rendering the module inoperative :
- Microprocessor test.
- BIOS ROM memory test.
- DMA and timers test.
• Providing the first series of self-tests execute without error, a second series is performed. Should a failure be detected, an error message is displayed and the microprocessor continues the tests. The tests comprise :
- Determining the size of system RAM memory.
- Video controller test.
- Interrupt controller test.
- RAM memory test.
- Keyboard test.
- System disk test.
- Serial port test.
- Shared memory (SMU) test.
If a screen is connected to the module, the progress of the tests is displayed as follows :
T e l e m e c a n i q u e PCM 00 V1.0 (C) Copyright 1990-93
CPU clock....... :
Base Memory..... :
10 MHz
512 Kb OK
I
S
H
E
N
G
L
Video Mode...... :
Keyboard........ :
System Disk..... :
Serial Port(s).. :
VGA - Color Display
OK
OK
2
Smu............. : OK
When the self-tests have been completed, the result is displayed on the LEDs on the front panel and stored in a status word (see section 5.4). Providing no errors have been detected during the self-tests, the BIOS "Bootstrap" loader executes and attempts to find the system "Boot" file either in the memory cartridge or in system memory. The first file found is then loaded into memory and executed to start up the system.
___________________________________________________________________________
41
3 Functions
___________________________________________________________________________
E
N
G
L
I
S
H
In all operational phases of the module, the status of the LEDs indicates correct operation or a fault condition when applicable :
Phase
Power-up
Self-tests
Boot module execution
DOS start-up
Operation (*)
RUN CPU MEM I/O
ON ON ON ON
OFF OFF OFF OFF
OFF ON ON ON
OFF OFF OFF ON
OFF OFF ON OFF
ON OFF OFF OFF
ON OFF OFF OFF
ON OFF ON OFF
ON ON ON ON
ON OFF OFF ON
Description
Module out of service (hardware fault)
Self-tests in progress
Self-test error
Module not connected to console or wrong monitor type.
Wrong cartridge type or defective cartridge
Module operational
Correct operation
Cartridge absent or without application
Module out of service
Module not connected to console or wrong monitor type.
ON : LED on
OFF : LED off
(*) Management of the LEDs (except for the I/O LED) can be modified by the application part.
In this case, it is the responsibility of the developer to document the status of these LEDs.
___________________________________________________________________________
42
Operation 4
___________________________________________________________________________
The cartridge can be formatted in one of two ways :
• Cartridge formatted and non-bootable, called application or user cartridge,
• Cartridge formatted and bootable, called system cartridge.
The operation of the module at power-up and at the end of the self-test phase is determined by the state of the cartridge.
• If the cartridge is absent or not formatted, the module will execute the self-test routines, then load into memory and execute the operating system found in system memory (SYSTEM DISK). The time, as read from the PLC, and the main user menu are displayed on the screen connected to the module. The user menu offers the following functions to the user :
- Cartridge initialization.
- Updating the time/date in the PLC and the module.
- Executing an application.
- Return to the operating system.
• If an application cartridge (user cartridge) is present, the module will execute the self-test routines, then load into memory and execute the operating system found in the system memory (SYSTEM DISK).
Should there be no application program present in the cartridge, the time, read from the PLC, and the main user menu are displayed on the screen connected to the module. If an application is present in the cartridge, it is executed.
• If a system cartridge is present, the module will execute the self-test routines, then load into memory and execute the operating system found in the cartridge.
E
N
G
L
I
S
H
___________________________________________________________________________
43
4 Operation
___________________________________________________________________________
E
N
G
L
I
S
H
4.2-1 General
In any of the following situations :
• Cartridge absent when module initialized
• Cartridge not formatted when module initialized
• No application program in the cartridge when module initialized
• Application stopped
• STARTUTI command called up by DOS (to start the permanent user services) the user services display the following menu on the screen connected to the module :
10:40:00 06/07/92 PCM 00
Main menu
F6 :Cartridge Initialization
F7 :PLC Date and Time Initialization
F8 :Run Cartridge Application
F3 :Exit to DOS
Copyright AEG SCHNEIDER AUTOMATION 1990-1995
A band in the upper part of the screen displays the time and date read from the PLC at power-up but subsequently maintained by the module.
The central part of the screen indicates the main user accessible functions supported by the permanent services :
• Cartridge initialization.
• Modification of date/time
• Executing an application.
• Return to DOS.
In addition to these functions, monitoring of the message handling associated with the transfer of files with the PCM FTT integration software is also available.
<F6> Accesses the cartridge initialization menu.
<F7> Accesses the date/time update menu.
<F8> Starts execution of the application.
<F9> Permits return to DOS
___________________________________________________________________________
44
Operation 4
___________________________________________________________________________
4.2-2 Cartridge initialization
This screen, which is accessed by key <F6> in the main menu, is used to initialize a user cartridge (in the same way as a diskette) in order to install certain DOS files. This operation is obligatory the first time the cartridge is used.
10:41:00 PCM 00
Cartridge initialization menu
06/07/92
F1 : User Cartridge Initialization
F10 :System Cartridge Initialization
F3 : Return to main menu
Copyright AEG SCHNEIDER AUTOMATION 1990-1995
<F1> Enables the user to initialize (or format) an application cartridge. The following message is displayed on the screen :
WARNING ! This operation erases the whole cartridge !
Do you really want to continue (F9=Yes, Others=No) ?
<Any key other than F9> aborts the initialization of an application cartridge.
<F9> confirms and starts cartridge initialization. This is performed in two phases :
Physical formatting of the cartridge : Consists of initializing each sector of the cartridge with the same data, then verifying it in order to update the File
Allocation Table (FAT) with the bad sectors.
As the initialization proceeds, the result of each operation is displayed track by track in the form of a horizontal bargraph.
Should there be a track error, a message is displayed instead of the bargraph.
E
N
G
L
I
S
H
___________________________________________________________________________
45
E
N
G
L
I
S
H
4 Operation
___________________________________________________________________________
Logical formatting of the cartridge : Consists of initializing the first sectors of the cartridge in the following way :
• Initializing the boot sector.
• Initializing the FAT sectors.
• Initializing the root directory sectors
• Creating a volume name (11 characters) to customize the cartridge :
DDDYYHHMMSS
Seconds
Minutes
Hours
Year
Day of the Year
For example, 07291133022 corresponds to a cartridge formatted on the 72nd day of 1991 at 13.30 and 22 seconds.
The message End Cartridge Initialization ! informs the user that cartridge formatting is finished.
There are two types of error which may occur during the cartridge initialization operation :
• Serious errors which require the operation to stop immediately : no cartridge present, EPROM cartridge, error in system tracks (tracks 0 and 1).
• Errors relating to one track : checksum error, sector not found, write or read error, etc. The track is declared unusable by DOS, which reduces the size of available memory in the cartridge accordingly.
DOS identification of the cartridge
• Cartridges
≥
2 Mb
A : represents the system disk,
C : represents the cartridge (user cartridge or system cartridge).
• Cartridges < 2 Mb
A : represents the bootable drive, either the system disk, or the cartridge
(system cartridge),
B : represents the other drive.
___________________________________________________________________________
46
Operation 4
___________________________________________________________________________
<F10> Permits the user to initialize (or format) a system cartridge (bootable cartridge).
The following message is displayed on the screen :
WARNING! This operation erases the whole cartridge !
Do you really want to continue (F9=Yes, Others=No)?
As for an application cartridge, the user is required to either confirm and start the formatting operation, or abort.
The procedure for formatting is identical to that for an application cartridge. The only difference consists of adding a boot sector and the DOS system files when the formatting is finished.
Error management is identical to that for the application cartridge.
E
N
G
L
I
S
H
___________________________________________________________________________
47
4 Operation
___________________________________________________________________________
4.2-3 Changing the Date and Time
The date and time menu is accessed by <F7> in the main menu. It allows the user to modify the date and time simultaneously in both the PLC and the module.
E
N
G
L
I
S
H
10:40:00 PCM 00
PLC Date and Time menu
F6 :Setting Date and Time on PLC
F3 :Return to main menu
06/07/92
MM DD YY HH MM SS
04 01 91 10 40 00
Use Left and Right Arrows to select fields, Up and Down Arrows to modify them
Copyright AEG SCHNEIDER AUTOMATION 1990-1995
<
←
><
→
>
Selects the field to be modified
MM DD YY HH MM SS
Seconds
Minutes
Hours
Year
Day
Month
<
↓
><
↑
>
Increments or decrements the selected field.
<F6> Takes into account any changes to the date or time that may have been made.
The date/time update is performed simultaneously in both the PLC and the module.
In the case of a fault, an error message is displayed on the screen.
<F3> Returns the user to the main menu without performing the date/time update in either the PLC or the module.
___________________________________________________________________________
48
Operation 4
___________________________________________________________________________
4.2-4 Starting the application
This function is accessed by key <F8> in the main menu and permits the user to exit from the permanent user services and start the application present in the cartridge, by executing the STARTAPP.BAT file.
The contents of the STARTAPP.BAT file are the responsibility of the systems integrator.
If the STARTAPP.BAT file is not present in the cartridge, an error message appears on the screen (see section 5 - Appendix).
_______________________________________________________________________________________
4.2-5 Return to the DOS operating system
This function is accessed by key <F3> in the main menu and permits the user to exit from the permanent user services and to return to the DR DOS 5.0 operating system, located in system memory. As soon as the DOS prompt becomes visible all the standard DOS functions (DIR, COPY, etc) are available.
In order to use all the available DOS commands, a full keyboard with 101 or 102 keys is required.
E
N
G
L
I
S
H
___________________________________________________________________________
49
4 Operation
___________________________________________________________________________
4.2-6 Transferring files
When transferring files using the PCMFTT software, and if a display terminal is connected to the module, the screen associated with the transfer operation is displayed automatically, temporarily replacing the current display. At the end of the transfer, the previous screen is reactivated while retaining all data relative to the transfer.
It should be noted however, that transfer of files using the PCMFTT software can only be performed if the status of the module is compatible with file transfer operation. For example, if the user is in the process of initializing a cartridge, file transfer cannot be performed while the cartridge is being formatted.
E
N
G
L
I
S
H
10:40:00 PCM 00
Main menu
06/07/92
S10 : Abort Current Operation
Remote name : (OEM) PC-DOS Operation........ : Uploading
File name........ : SYS.CT
File size........ : 992 bytes
Bytes transferred : 496 (50%)
Status........... : Working
Copyright AEG SCHNEIDER AUTOMATION 1990-1995
<S10> or <Shift><F10>
Stops the transfer of files from the module immediately.
Status messages displayed during file transfer operations are as follows :
• Operation, indicates the type of transfer in progress :
- Uploading : reception of a file by the module,
- Downloading : transmission of a file from the module.
• Remote name, indicates the name of the remote program which originated the transfer.
• File name, indicates the name of the transferred file.
• File size, indicates the size in bytes, of the transferred file.
• Bytes transferred, indicates the number of bytes already transferred and the percentage of bytes transferred relative to the size of the file. This information indicates how the operation is progressing.
___________________________________________________________________________
50
Operation 4
___________________________________________________________________________
• Status, indicates the current status of the transfer :
- Working : The transfer operation is in progress.
- End of Transfer OK : The transfer has been completed successfully.
- Aborted by local operator : The transfer has been aborted by the user pressing key S10.
- Aborted by remote operator : The transfer has been aborted by PCMFTT.
- Local Error : <Error message>.
The transfer has been aborted because of a fault in the module, detailed in <Error
Message>.
This message (detailed as "unable to open file") is normally displayed at the initial transfer to a newly formatted cartridge
- Remote Error : <Error message>.
The transfer has been aborted because of a PCMFTT fault, detailed by <Error
Message>.
- Communication interrupted : The transfer has been aborted because of a communications failure between PCMFTT and the module.
E
N
G
L
I
S
H
___________________________________________________________________________
51
5 Appendix
___________________________________________________________________________
5.1
Error messages
5.1-1 PLC date/time read error messages
PLC CPU not available !
Impossible to access the PLC processor.
Timing on PLC CPU not available !
Date/Time read request not supported by PLC.
Communication not available !
Local access to SMU shared memory impossible.
E
N
G
L
I
S
H
_______________________________________________________________________________________
5.1-2 Cartridge formatting error messages
At the start of the formatting operation
Assigned or Substituted Unit !
Drive b: has been either re-assigned or substituted (a DOS ASSIGN or SUBST
command has previously been executed).
Formatting is stopped immediately.
No Cartridge !
There is no cartridge in the module.
Formatting is stopped immediately.
Invalid Cartridge Type !
The cartridge size is not recognized by the module.
Formatting is stopped immediately.
___________________________________________________________________________
52
Appendix 5
___________________________________________________________________________
During the physical formatting
Incorrect Initialization Parameters !
Formatting incompatibility at the BIOS level (an EPROM cartridge for example).
Formatting is stopped immediately.
Protected Cartridge !
The cartridge is an EPROM cartridge.
Formatting is stopped immediately.
Cartridge not ready !
This message appears if any attempt is made to extract the cartridge from the module during the formatting operation.
Formatting is stopped immediately.
Invalid system tracks !
Formatting error connected with the tracks containing the system sectors : tracks 0 and 1 for a non-bootable cartridge and tracks 0 to 12 for a bootable cartridge.
Formatting is stopped immediately.
During the transfer of system files to a bootable cartridge
Invalid system disk file !
Impossible to read the system files present on the system disk.
Formatting is stopped immediately.
Invalid cartridge file !
Impossible to write the system files to the cartridge.
Formatting is stopped immediately.
E
N
G
L
I
S
H
_______________________________________________________________________________________
5.1-3 Date/time update error message
PLC CPU not available !
Impossible to access PLC processor or Date/Time write request not supported by the PLC processor.
_______________________________________________________________________________________
5.1-4 Application execution error message
No application on the Cartridge!
The STARTAPP.BAT file is not present in the cartridge.
___________________________________________________________________________
53
5 Appendix
___________________________________________________________________________
E
N
G
L
I
S
H
Typical current consumption
Average current consumption measured at an operating temperature
θ
A
= 25 o C
Maximum current consumption
Calculated current consumption for operation of the module over the full operating temperature range of
θ
A
= 5 o C to 55 o C
_____________________________________________________________________
Current consumption in mA
1650
20
270 (1)
Maximum
2100
30
300 (1)
(1) if a keyboard is connected to the module, make allowance for its own consumption.
___________________________________________________________________________
54
Appendix 5
___________________________________________________________________________
5.3
The TSX BMP 010 module
BMP 010
OK
VIDEO
VGA
RS 232C
(COM1)
1
TSX CMB 0xx (xx = 03,10)
220 VCA 110 VCA
N N
L L
PCM
KB
RS 232C
(COM2)
Modem
6
7
8
9
1
2
3
4
5
COM1
RXD
TXD
GND
BUSY
COM2
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
E
N
G
L
I
S
H
___________________________________________________________________________
55
5 Appendix
___________________________________________________________________________
5.4
Discrete bits and register words
Addressing
I
Discrete Bits x y , i IW or OW x y , i
Bit #
Position #
Rack #
Input: read by CPU
Word #
Position #
Rack #
Ouput: written by CPU
Input: read by CPU
Discrete bits
E
N
G
L
I
S
H
All the discrete bits are free
Input register words
Standard status word
F E D C B A 9 8 7 6 5 4 3 2 1 0
IWxy,0 bit 3 bit 4 bit 5 bit 8 bit 9 bit A
1= module available
1= general non-fatal error
1= non-fatal error
1= fatal error, SMU driver absent or module absent
Reserved
1= console not connected, TSX BMP 010 module not connected or visual display unit not connected
Other register words : these are all free.
___________________________________________________________________________
56
Shkarko
Lidhja publike u përditësua
Lidhja publike për bisedën tuaj është përditësuar. You may view and manage your chat links after registration here.
Lidhja publike e dokumentit
Reklamë
