Datex-Ohmeda AS/3 Compact Monitor Product manual

Datex-Ohmeda
AS/3 Compact Monitor, CS/3 Compact Monitor
Technical Reference Manual
All specifications are subject to change without notice.
Document No. 896623
February 2
Datex-Ohmeda Inc.
3 Highwood Drive
Tewksbury, MA 1876
Tel. (978) 64 - 46 Fax (978) 64 - 469
www.us.datex-ohmeda.com
Datex-Ohmeda Division,
Instrumentarium Corp.
P.O. Box 9 , FIN- 31
DATEX-OHMEDA, FINLAND
Tel. [phone] Fax [phone]
www.datex-ohmeda.com
 Instrumentarium Corp. All rights reserved.

NOTIC
Intended purposes
The Datex-Ohmeda AS/3 Compact Monitor is a multiparameter patient monitor intended for the
physiological monitoring of hospitalized patients. It is indicated for monitoring anesthetized patient’s
relaxation, hemodynamic, ventilation, gas exchange, regional perfusion and neurophysiological parameters.
The system is indicated for use by qualified medical personnel only.
The Datex-Ohmeda CS/3 Compact Monitor, CMC, is a multiparameter patient monitor intended for the
physiological monitoring of hospitalized patients. It is indicated for monitoring the patient’s hemodynamic,
ventilation, gas exchange, regional perfusion and central nervous system. The system is indicated for use by
qualified medical personnel only.
The Datex-Ohmeda CS/3 Compact Monitor with S-ICU99/A software is intended for multiparameter patient
monitoring. The monitor is indicated for monitoring of hemodynamic (including arrhythmia and ST-segment
analysis), respiratory, ventilatory, gastrointestinal/regional perfusion and neurophysiological status of all
hospital patients. The system is indicated for use by qualified medical personnel only.
Classifications
In accordance with I C 60601-1:
Class I and internal powered equipment- the type of protection against electric shock.
Type BF or CF equipment. The degree of protection against electric shock is indicated by a symbol on the
parameter panel beside each connector.
Equipment is not suitable for use in the presence of a flammable anesthetic mixture with air or with oxygen or
nitrous oxide.
Continuous operation according to the mode of operation.
In accordance with I C 60529:
Degree of protection against the harmful ingress of water as detailed in the IEC 6 529: IPX1
In accordance with U Medical Device Directive: IIb
Responsibility of the manufacturer
Datex-Ohmeda Division, Instrumentarium Corp. is responsible for the safety, reliability and performance of
the equipment only if:
−assembly, operations, extensions, readjustments, modifications, service and repairs are carried out
by personnel authorized by Datex-Ohmeda.
−electrical installation complies with appropriate requirements.
−the equipment is used in accordance with the User’s Guide and serviced and maintained in
accordance with the Technical Reference Manual.
Storage and Transport
For allowed storage and transport conditions refer to the documentation delivered with the monitor.
Trademarks
Datex®, Ohmeda®, and other trademarks AS/3, CS/3, D-lite, Pedi-lite, D-fend, D-fend+, MemCard,
ComWheel, EarSat, FingerSat, FlexSat, PatientO2, Patient Spirometry and Tonometrics are property of
Instrumentarium Corp. or its subsidiaries. All other product and company names are property of their
respective owners.
© Instrumentarium Corp. All rights reserved.

Master table of contents
Document No. 896623
Datex-Ohmeda AS/3TM Compact Monitor and CS/3TM Compact Monitor
Technical Reference Manual, 89 23
Folder #1(2), PART I, General Service Guide
Document No. Updated Updated Description
896 623 Introduction, System description, Installation, Interfacing, Functional chec , General troubleshooting 1
896674 Planned Maintenance Instructions 2
PART II, Product Service Guide
8001068 AS/3 CM Frames; F-CM, F-CMREC
CS/3 CMC Frames; F-CMC, F-CMCREC
CPU Boards; B-CMCPU4, B-CPU3, B-CPU2
Software cards and cartridges
1
888737-2 Upinet Board,B-UPINET 2
895156-2 MRI Shield, N-MRI
MRI Multiparameter NES Module, M-MRI
3
Folder #2(2), PART II, Product Service Guide (continues)
896 620-1 Hemodynamic Modules,
M-NE12STPR, M-NE12STR, M-NE12TPR, M-NESTPR, M-NESTR, M-NETPR, M-ESTPR, M-ESTR, M-ETPR
1
896 619 Compact Airway Modules, M-CAiOVX, M-CAiOV,M-CAiO, M-COVX, M-COV, M-CO, M-C 2
896 621 Tonometry Module, M-TONO 3
896 622-1 EEG Module, M-EEG and EEG Headbox, N-EEG 4
889 881-5 Cardiac Output Modules, M-COP and M-COPSv 5
885 935-7 Pressure Module, M-P, Pressure Temp Module, M-PT
893 224-3 Dual Pressure Module, M-PP 7
885 936-6 NIBP Module, M-NIBP 8
885 937-6 Recorder Module, M-REC 9
885 940-7 Nellcor Compatible Saturation Module, M-NSAT 10
887 780-5 NeuroMuscular Transmission Module, M-NMT 11
893 780-3 Anesthesia Keyboard, K-ARK, Keyboard Interface Board, B-ARK and ARK Barcode Reader, N-SCAN 12
885 939-6 Memory Module, M-MEM, Memory Board, B-CMMEM 13
893 779-2 Interface Module, M-INT 14
885 941-6 Networ Board, B-NET 15

Table of contents
Document No. 896623
i
TABL OF CONT NTS
AS/3 Compact Monitor, CS/3 Compact Monitor
TABL OF CONT NTS i
TABL OF FIGUR S ii
1 INTRODUCTION 1
1.1 Notes to the reader ....................................................................................................................................2
1.1.1 Related Documentation.....................................................................................................................2
1.1.2 Conventions used..............................................................................................................................3
1.2 Safety Precautions.....................................................................................................................................6
1.2.1 Warnings ..........................................................................................................................................6
1.2.2 Cautions ...........................................................................................................................................7
2 SYST M D SCRIPTION 9
2.1 Introduction...............................................................................................................................................9
2.2 Bus structure .............................................................................................................................................9
2.3 Distributed processing .............................................................................................................................1
2.4 Module communication ...........................................................................................................................11
2.5 Software loading......................................................................................................................................12
2.6 Parameter modules .................................................................................................................................12
3 SYST M INSTALLATION 14
3.1 Unpacking instructions.............................................................................................................................14
3.2 Choosing location....................................................................................................................................14
3.3 Assembling the AS/3, CS/3 Compact Monitor Frame................................................................................14
3.3.1 Compact Monitor connections .........................................................................................................15
3.3.2 Rear panel connectors.....................................................................................................................16
3.3.3 Connection to mains........................................................................................................................17
3.3.4 Connection to Network ....................................................................................................................17
3.3.5 Inserting the parameter modules......................................................................................................17
3.3.6 Replacing the CPU Board, B-CMCPU4..............................................................................................18
3.3.7 Performing Factory Reset.................................................................................................................19
3.3.8 Replacing the Software Cartridge of B-CPU2/3.................................................................................2
3.3.9 Replacing the CPU Board, B-CPU2/3...............................................................................................21
3.4 AS/3 Memory Board, B-CMMEM Installation (w/ B-CPU2/3).....................................................................23
3.5 AS/3 Memory Board, B-CMMEM Installation (w/ B-CMCPU4)....................................................................26
3.6 Network Board, B-NET Installation (w/ B-CPU2/3) ....................................................................................29
3.7 Network Board, B-CMNET Installation (w/ B-CMCPU4) ..............................................................................32
3.8 AS/3 UPINET Board, B-UPINET Installation (w/ B-CPU2/3)........................................................................34
3.9 AS/3 UPINET Board, B-UPINET Installation (w/ B-CMCPU4).......................................................................37
3.1 Compact Airway Modules, M-XXXX..........................................................................................................39
3.1 .1 Sample Gas Exhaust .....................................................................................................................39
3.1 .2 Scavenging Through Reservoir .......................................................................................................4
3.1 .3 Scavenging Through Direct Connection ..........................................................................................4
3.1 .4 Returning Gas to Patient Circuit......................................................................................................41
3.11 AS/3 Anesthesia Keyboard, K-ARK.........................................................................................................41
3.12 Remote Controller, K-REMCO .................................................................................................................41
3.13 Bar Code Reader ...................................................................................................................................42

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3.13.1 Connection to the Compact Monitor...............................................................................................42
3.13.2 Different Configurations ................................................................................................................42
3.14 Troubleshooting ....................................................................................................................................44
4 INT RFACING 45
4.1 Interfacing Monitors via UPI Board, B-UPI .................................................................................................46
4.1.1 Interconnection Datex-Ohmeda Monitors .........................................................................................46
4.1.2 Setting the Interfacing Parameters...................................................................................................47
4.1.3 Setting the Interfacing Parameters for the Compact Monitor..............................................................47
4.2 Interfacing with Datex-Ohmeda Monitors via UPINET Board, B-UPINET .......................................................47
4.3 Interfacing Monitors via M-INT..................................................................................................................48
4.3.1 Connection to Datex-Ohmeda Monitors............................................................................................48
4.3.2 Connection to Critikon Dinamap 1846SX, Abbott Oximetrix 3 and Baxter Explorer ..............................49
4.3.3 Connection to Baxter Vigilance ........................................................................................................49
4.3.4 Connection to Nellcor N-1 and N-1 ........................................................................................49
4.3.5 Connection to Nellcor N-2 ...........................................................................................................49
4.4 Interfacing Datex-OhmedaAS/3 Anesthesia Delivery Unit..........................................................................49
4.5 Interfacing Dräger Cicero and Cato ...........................................................................................................5
4.6 Interfacing a printer .................................................................................................................................5
4.7 Interfacing a computer.............................................................................................................................5
4.8 UPI Board Output Signals.........................................................................................................................51
4.8.1 Digital Outputs................................................................................................................................51
4.8.2 Analog Outputs ...............................................................................................................................52
4.8.3 Setting the Analog Output Signals....................................................................................................53
4.9 Pressure Temp Module, M-PT Output Signals ............................................................................................54
4.9.1 Analog Outputs ...............................................................................................................................54
5 FUNCTIONAL CH CK 55
5.1 Recommended tools ...............................................................................................................................55
5.2 Visual inspection/preparation..................................................................................................................55
5.3 Functional Inspection ..............................................................................................................................58
6 G N RAL TROUBL SHOOTING 74
APPENDIX A 75
FUNCTIONAL CH CK FORM A-1
TABL OF FIGUR S
Figure 1 AS/3, CS/3 Compact Monitor ..................................................................................................................1
Figure 2 General Structure of AS/3 and CS/3 System.............................................................................................9
Figure 3 Distributed Processing in AS/3 and CS/3 System ...................................................................................1
Figure 4 Principle of UPI operation .......................................................................................................................11
Figure 5 Software loading....................................................................................................................................12
Figure 6 General structure of parameter modules .................................................................................................13
Figure 7 AS/3 Compact Monitor Connections.......................................................................................................15

Table of contents
Document No. 896623
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Figure 8 Rear Panel with Memory, CPU and UPINET Boards ...................................................................................16
Figure 9 Rear Panel with NET, CPU and UPI Boards. NET and UPI Boards can be replaced by UPINET board.............16
Figure 1 - Datex-Ohmeda Compact Airway Module ..............................................................................................39
Figure 11 Scavenging through Ventilator Reservoir................................................................................................4
Figure 12 Connection Directly to a Scavenging System .........................................................................................4
Figure 13 Sample Gas Return to Patient Circuit in ADU..........................................................................................41
Figure 14 Bar Code Reader connected to the Compact Monitor .............................................................................42
Figure 15 Monitor General Troubleshooting Flowchart...........................................................................................74

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General Service Guide
1
Document No. 896 623
1INTRODUCTION
Datex-Ohmeda AS/3 Compact Monitor is a cardiac and respiratory monitoring device used during
anesthesia, recovery and short transports.
Datex-Ohmeda CS/3 Compact Monitor is designed for monitoring in intensive care units.
The monitor consists of the CM frame and modules. There are single and double width modules
containing one or more parameters. The modules can be removed and inserted during operation.
The CM frame is equipped with a battery, and also a built-in recorder is available. AS/3 Anesthesia
Keyboard, K-ARK is available for AS/3 Compact Monitor.
2
3
1
Figure 1 AS/3, CS/3 Compact Monitor
(1) CM Frame
(2) Printer
(3) Remote Controller, K-REMCO

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1.1 Notes to the reader
This technical reference manual is intended for service personnel and engineers who will perform
service and maintenance procedures on Datex-OhmedaAS/3 Compact Monitor and Datex-
Ohmeda CS/3 Compact Monitor.
This technical reference manual is divided into two parts:
•The Part I gives to the reader overview of the AS/3 Compact Monitor and CS/3 Compact
Monitor. This part of the manual contains also the information you need to unpack, install
and test the monitors. Read the manual through and make sure that you understand the
procedures described before installation of the monitor. To avoid risks concerning safety or
health, strictly observe the warning indications. If you need any assistance concerning the
installation, please do not hesitate to contact your authorized distributor.
•The Part II gives detailed descriptions of each component of Compact Monitor.
The manufacturer reserves the right to make changes in product specifications without prior notice.
The information in this manual is believed to be accurate and reliable; however, the manufacturer
assumes no responsibility for its use.
Datex-Ohmeda assumes no responsibility for the use or reliability of its software on equipment that
is not furnished by Datex-Ohmeda.
1.1.1 Related Documentation
AS/3 Compact Monitor
More information about the clinical aspects and technical background:
AS/3 Compact Monitor, User’s Guide
AS/3 Compact Monitor, User’s Reference Manual
Default configuration options: Default Configuration Worksheet
Circuit diagrams, component lay-out pictures, etc.: Schematic Diagrams
More information about other devices closely related to the Compact Monitor:
Information Center, User’s Reference Manual
AS/3 Record Keeper, User’s Reference Manual
CS/3 Compact Monitor
More information about the clinical aspects and technical background:
CS/3 Compact Monitor, User’s Guide
CS/3 Compact Monitor, User’s Reference Manual
Default configuration options: Default Configuration Worksheet
Circuit diagrams, component lay-out pictures, etc.: Schematic Diagrams
More information about other devices closely related to the Compact Monitor:
Information Center, User’s Reference Manual
CS/3 Arrhythmia Workstation, User’s Reference Manual

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1.1.2 Conventions used
Throughout this manual, the following conventions are used to distinguish procedures or elements
of text:
?Sign the performed procedure in the check list.
To help you find and interpret information easily, the manual uses consistent text formats for
certain text types:
Hard Keys Names of the hard keys on the Remote Controller, Command Board and modules are written in the
following way: Cancel.
Menu Items Menu items are written in bold italic typeface, for example Location.
‘Messages’ Messages (alarm messages, informative messages) displayed on the screen are written inside
single quotes, for example ‘Learning’.
Chapters When referring to different sections in this manual, section names are written in italic typeface and
enclosed in double quotes, for example “Cleaning and Care”.
WARNING Warnings are written in bold D-O Sans typeface. The font size is 13 points. The
word warning itself is written in capitals.
CAUTION The font size is 13 points. The word caution itself is written in capitals.
NOTE: Notes are written like this using Bodytext.
Symbols on transport packaging
The contents of the transport package are fragile and have to be handled with care.
This symbol indicates the correct upright position of the transport package.
The transport package must be kept in a dry environment.
This symbol is to indicate the temperature limitations within which the transport package should be
kept and handled.
Symbols on equipment
Ni-Cd
This battery contains Ni-Cd and in case of disposal, must be separated from other
waste according to local regulations.

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Ni-Cd
This battery contains Ni-Cd and it can be recycled.
Dangerous voltage
When using the ARK Barcode Reader, N-SCAN, do not stare into beam. The N-SCAN
Barcode Reader is a Class 2 laser product.
Attention, consult accompanying documents.
When displayed beside the O2 value, indicates that FiO2 low alarm limit is set below 21
%.
When displayed next to the HR value, indicates that the pacer is set on R or a wide QRS
is selected.
On the Interface Module M-INT, indicates that it is for connecting external devices. Do
not connect patient cables to the module.
On the rear panel of the monitor indicates the following warnings and cautions:
• Electric shock hazard. Do not open the cover or the back.
Refer servicing to qualified personnel.
• For continued protection against fire hazard, replace only with same type
and rating of fuse.
• Disconnect power supply before servicing.
Type BF (IEC-6 1-1) protection against electric shock
Type BF (IEC-6 1-1) defibrillator-proof protection against electric shock
Type CF (IEC-6 1-1) protection against
electric shock
Type CF (IEC-6 1-1) defibrillator-proof protection against electric shock
Gas outlet (in airway gas models only)
Ethernet connectors
When displayed on the upper left corner of the screen, indicates that the alarms
are silenced. When in the menu or digit fields, indicates that the alarm source has
been turned off.
Other Symbols
Equipotentiality. Monitor can be connected to potential equalization conductor.

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Alternating current
Fuse
SN, S/N Serial Number
Sub menu. Selecting an alternative with this symbol in a menu opens a new menu.
The monitor is connected to the Datex-Ohmeda Network.
Data card (green) and/or the Menu card (white) is inserted.
Indicates the beats detected.
Respiration rate is measured using impedance respiration measurement.

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1.2 Safety Precautions
1.2.1 Warnings
WARNING A WARNING indicates a situation in which the user or the patient may be in
danger of injury or death
Power Connection
•Before connecting the power cord to the mains outlet, check that the local voltage and
frequency rating corresponds with the rating stated on the device plate on the rear panel of
monitor frame.
•Connect the monitor to a three-wire, grounded, hospital grade receptacle. Do not remove
the grounding prong from the power plug.
•Use intact power cord. Replace the cord if it is cracked, frayed, broken or otherwise
damaged.
•Do not apply tension to the power cord. The cord may get broken.
•Do not use extension cords or adapters of any type.
xternal Connection
•Do not connect any other external devices to the monitor than those specified by Datex-
Ohmeda.
Fuse Replacement
•Replace the fuse with a fuse of the same type and with the same rating.
xplosion Hazard
•Do not use the monitor in the presence of flammable anesthetics.
Patient Safety
•Do not perform any testing or maintenance on the monitor while it is being used on a
patient.
•Use only cables and accessories approved by Datex-Ohmeda. Do not modify them. Other
cables and accessories may damage the monitor or interfere with measurement.
•PACEMAKER PATIENTS: The impedance respiration measurement may cause rate changes
in Minute Ventilation Rate Responsive Pacemakers. Set the pacemaker rate responsive
mode off or turn the impedance respiration measurement off on the monitor.

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Document No. 896 623
Cleaning and Service
•Only trained personnel with proper tools and test equipment should perform the tests and
repairs described in this manual. Unauthorized service may void the monitor warranty.
•Switch the power off and unplug the power cord before cleaning or service. Get rid of
moisture completely before reconnecting it to the mains outlet.
•Do not touch any exposed wire or conductive surface while covers are off and the monitor is
energized. The voltages present can cause injury or death.
•Perform electrical safety check and leakage current test to the monitor always after service.
1.2.2 Cautions
CAUTION A CAUTION indicates a condition that may lead to equipment damage or
malfunction.
Installation
•Leave space behind the monitor to allow proper ventilation.
Before Use
•Allow two minutes for warm-up and note any error messages or deviations from normal
operation.
•Clean side panel fan dust filter once a month or whenever necessary.
Autoclaving and Sterilizing
•Do not autoclave any part of the monitor.
•Do not gas sterilize the modules.
Cleaning and Service
•Do not use ammonia-, phenol-, or acetone-based cleaners. These cleaners may damage
the monitor surface.
•Do not immerse the monitor in any liquid. Do not allow liquid to enter the monitor or into
modules.
•Electrostatic discharge through the PC boards may damage the components. Before
replacing PC boards, wear a static control wrist strap. Handle all PC boards by their non-
conductive edges and use anti-static containers when transporting them.
•Do not break or bypass the patient isolation barrier when testing PC boards.

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Special Components
•There are special components used in this monitor which are vital to assure reliability and
safety. Datex-Ohmeda assumes no responsibility for damage if replacement components
not approved by Datex-Ohmeda are used.
•There is a lithium battery on the CPU board. Discard broken IC containing the battery according
to local regulations.
Batteries
The battery package of the power supply unit in this device contains NiCd which is hazardous to
environment and thus the battery needs to be disposed of carefully according to local regulations.
To replace the batteries safely, please refer to the instructions further on in this manual.
•Do not short-circuit the battery terminals, short-circuiting the battery may produce a very
high current, which damages the battery.
•Do not dispose of the battery into open flame, nor put the battery near fire, as it may
explode.
•Do not disassemble the battery. It contains electrolyte, which may damage clothing or
cause injury to skin or eyes. If exposed to electrolyte, wash the injured area with plenty of
water and contact a doctor.
See also the chapter “Symbols”.
Storage and Transport
Do not store or transport the monitor outside the specified temperature and pressure range:
Temperature -1 ...+5 °C /14...122 °F
Ambient pressure 66 ...1 6 hPa/5 ...8 mmHg/
66 ...1 6 mbar
Humidity ...85 % non-condensing
Discard
Discard the device and parts thereof according to local regulations. Do not discard to the nature.
The manufacturer accepts no responsibility for any modifications made to the monitor outside the
factory.

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2SYST M D SCRIPTION
2.1 Introduction
Datex-OhmedaAS/3 and CS/3 monitors builds up to freely configurable modular system. The
architecture is designed to enable different module combinations so that the user is able to get the
desirable parameter and feature set. The modular approach makes it possible to add new features
when they are needed.
2.2 Bus structure
The operation of Datex-OhmedaAS/3 and CS/3 products is based on two communication
channels, the CPU bus and the module bus. All boards connected to the CPU bus as well as the
parameter modules attached to the module bus receive their power from the same power supply,
which is an integral part of the frame.
Parameter
Module
Display
Controller
MODULE BUS
CPU BUS
CPU Power
Supply
Parameter
Module
UPI /
UPINET
Figure 2 General Structure of AS/3 and CS/3 System
The CPU bus is a parallel communication channel used only for internal data transfer between the
boards connected to one frame. It is based on the ISA bus used in the IBM PC computers. Data is
transferred on this 16 bits wide bus using the CPU clock frequency.
The module bus is used to connect the parameter modules to the frame. It based on the widely
used industry standard RS-485, which uses differential serial method to transfer the data. This
type of bus is quite robust and it allows the modules to be attached or detached when the power is
on.
The RS-485 type serial communication supports so called multidrop or party line connections. This
means that all modules connected to module bus are using the same two physical wires for
communication purposes. The advantage is, that all the module bus connectors are identical and
the modules can be connected to any order and position.
Module bus is using 5 kbps data transfer rate and it can be used for longer distances than the
CPU bus, e.g. for external-frame connections.

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2.3 Distributed processing
A system put together from AS/3 and CS/3 products is a multiprocessor system. All the modules
have their own microprocessor and they are doing the low-level functions such as module key
control, waveform filtering, pneumatic control, etc. At the same time the main CPU is doing higher
level tasks, e.g. trending and alarm control. While modules and CPU are doing their job, the UPI
processor takes care of all functions needed to transfer the data between modules and CPU. And
at the same time the processor on display control board is doing pixel calculations for graphics.
This kind of parallel processing gives one major advantage to centralized processing. Each time
new modules or boards are added to the system, the processing power is also increased. As a
result the system is not slowing down when new features are added.
Module UPI or UPINET
Dual-port RAM
CPU
Display Control
Board
System memory
Display memory
RAM
Figure 3 Distributed Processing in AS/3 and CS/3 System

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2.4 Module communication
The communication master controlling the data transfer between CPU bus and module bus is
called UPI (Universal Peripheral Interface) board. It sends information or questions to each module
1 times per second, and if the module is present it replies to each question immediately by
sending a data package back to UPI board. This communication protocol ensures that each
module receives and sends information every 1 ms, the package length depends on the module
type. If the module does not respond, the UPI presumes that the module is not connected.
Each module type has a unique name, which UPI uses to address its messages. If there are two
modules of the same type, they both answer at the same time. This results an error and thus two
similar modules are not allowed in one frame.
Module Bus
Microcontroller
A
S/3 Bu
s
Dual-port
RAM
UPI Board
CPU Bus
Figure 4 Principle of UPI operation
The microprocessor on the UPI board collects all information coming from the modules into a dual-
port RAM. This memory is located on UPI board and it is mapped directly to the address space of
the main CPU. The main CPU is thus reading information from it's own memory and UPI guarantees
that the data is up to date. This operation works also to the other direction, when CPU is filling the
dual port RAM with data and UPIs’ microprocessor is distributing it to the modules.

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2.5 Software loading
The Software Cartridge attached to the B-CPU2/3 board contains the program for the CPU board
as well as for some other boards attached to the CPU bus. When the system is turned on, all
processors load their part of the software from the cartridge and after that start to execute their
program.
The CPU Board, B-CMCPU4 contains no external software cartridge. The softwares are always
loaded on the B-CMCPU4 boards already at the factory. For service procedures B-CMCPU4 boards
has a PC card drive, through which the software is loaded permanently on the board from the
software card.
UPI OR UPINET
Board CPU
Board Display
Controller
Board
Program
Memory Program Memory Program Memory
CPU BUS
Software
Cartridge
w/ B-CPU2/3 or w/ B-CMCPU4
Software
Card
Figure 5 Software loading
2.6 Parameter modules
The detailed structure of the parameter modules depends on the specific needs for each individual
parameter. Some common parts can be found inside the modules, however. The electronics inside
the module is usually divided into isolated (floating) and non-isolated sections. Typically the non-
isolated part consists only buffers needed to interface the module to module bus, the rest of the
electronics can be found from the isolated side. This includes the microcontroller together with
memory components, the front end analog electronics (amplifiers, etc.) and peripheral drivers to
control LEDs, sensors, valves and pumps.