12/18/24, 11:11 AM
Master Device - an overview | ScienceDirect Topics
On this page
Master Device
In subject area: Engineering
The Device Master Record (DMR) includes specifications and
instructions for manufacturing, production process
specifications, labeling, and packaging requirements and
installation, maintenance, and servicing procedures and
methods to commercialize a final medical product.
From: Biomedical Engineering Design, 2023
On this page
Chapters and Articles
You might find these chapters and articles relevant to this
topic.
HART communication
B.R. Mehta, Y.J. Reddy, in
Industrial Process Automation Systems, 2015
11.4.2 Device types
The communications protocol recognizes three distinct device
types among entities capable of using this protocol.
• Slave device: This is a device that accepts or provides a digital
message carrying measurement or other data, but only when
specifically requested, that is, this device always functions as
a slave in a master/slave relationship.
• Burst mode device: A burst mode device is defined to be a
slave mode device with burst mode capability (hence the use
of the word “mode” in describing the device type). When such
a mode is enabled, the device is said to “be in burst mode.”
• Master device: A master device is responsible for initiating,
controlling, and terminating transactions with a slave device
or a burst mode device. Master devices are classified into
primary master devices and secondary master devices to
allow the simultaneous use of two master devices on a HART
https://www.sciencedirect.com/topics/engineering/master-device
1/9
12/18/24, 11:11 AM
Master Device - an overview | ScienceDirect Topics
communication link. The same protocol rules are followed by
a primary master device and a secondary master device
View chapter
Explore book
Read full chapter
URL: https://www.sciencedirect.com/science/article/pii/B9780128009390000115
Field interfaces
Peng Zhang, in Advanced Industrial Control Technology,
2010
(i) Link master
A link master device is capable of controlling traffic on a link by
scheduling the communication on the network. Every fieldbus
network needs at least one link-master-capable device – either an
interface board in a PC, a programmable controller, a distributed
control system, or any other device, such as a valve or a pressure
transducer. Link masters need not be separate devices; they can
have I/O functionality (for example, you could buy temperature
transmitters both with and without link master capability).
Fieldbus can operate independently of a computer system
because of link masters on the bus, which have processing
capability and are capable of controlling the bus. After you
download a configuration to your device(s), your control loop can
continue to operate even if the monitoring computer is
disconnected.
All of the link masters receive the same information at the time of
download, but only one link master will actively control the bus at
a given time. The one currently in control is called the link active
scheduler (LAS). If the current LAS fails, the next link master will
take over transparently and begin controlling bus
communications where the previous LAS left off, so no special
configuration is required to implement redundancy. The LAS
device follows the schedule downloaded during the configuration
View chapter
Explore book
Read full chapter
URL: https://www.sciencedirect.com/science/article/pii/B9781437778076100129
https://www.sciencedirect.com/topics/engineering/master-device
2/9
12/18/24, 11:11 AM
Master Device - an overview | ScienceDirect Topics
PROFIBUS communication
B.R. Mehta, Y.J. Reddy, in
Industrial Process Automation Systems, 2015
12.2.1 Types of devices
Each DP system has three different types of devices:
• CLASS 1 DP MASTER (DPM1): It is the main controller that
cyclically exchanges information with the slaves. It is the
central control unit of a system such as the programmable
logic controllers, which exchange data with the field devices
within a specified message cycle. The DPM1 sets the baud rate
and the slave devices auto-detect this rate. A DPM1 can
passively (upon request) communicate actively with its
assigned slave devices, with another class 2 master device.
• CLASS 2 DP MASTER (DPM2): They are used for operation and
monitoring purpose and during start-up. Engineering stations
used for configuration, monitoring, or supervisory systems
such as Profibus View, Asset View, and so on are some
examples of class 2 DP master. It acts like a supervisory
master and actively communicates with class 1 masters and
their slaves, in addition to its own slaves, but usually only for
configuration, problem diagnosis, and data/parameter
exchange. DPM2 may only briefly take over control of a slave.
All exchanges between a class 2 master and class 1 master
originate with the class 2 master.
View chapter
Explore book
Read full chapter
URL: https://www.sciencedirect.com/science/article/pii/B9780128009390000127
Robot-assisted vitreoretinal surgery
H.C.M. Meenink, ... M.D. de Smet, in Medical Robotics, 2012
8.3 Master console
The master console provides an ergonomic and intuitive working
environment for the surgeon. It consists of a frame with arm rest,
a screen and two haptic interfaces. The console is mounted to the
patient’s head rest. A table-mounted device with a screen, as
opposed to a microscope system, is compact, easy to place and
allows the surgeon to have a direct view on and physical contact
https://www.sciencedirect.com/topics/engineering/master-device
3/9
12/18/24, 11:11 AM
Master Device - an overview | ScienceDirect Topics
with the patient. Furthermore, the surgeon is not forced to work
in a static body posture.
8.3.1 System layout
The surgeon uses the haptic interfaces for bimanual control of the
instruments. As indicated in Fig. 8.2, each instrument has to be
manipulated in four DoFs about the entry point and is operated by
an additional DoF, e.g., for a forceps. The haptic interface must
provide force feedback on all of these five DoFs. Mode switching
allows the control of three or more instrument manipulators (in
Fig. 8.5, only two instrument manipulators are shown) with only
two haptic interfaces. As a vitrectomy procedure requires the
largest range of motion, these values are taken as a design
Show more
View chapter
Explore book
Read full chapter
URL: https://www.sciencedirect.com/science/article/pii/B9780857091307500089
SPI Communication
Kevin M. Lynch, ... Matthew L. Elwin, in
Embedded Computing in C with the PIC32 Microcontroller,
2016
12.1 Overview
SPI is a master-slave architecture, and an SPI bus has one master
device and one or more slaves. A minimal SPI bus consists of three
wires (in addition to GND): Master Output Slave Input (MOSI),
carrying data from the master to the slave(s); Master Input Slave
Output (MISO), carrying data from the slave(s) to the master; and
the master’s clock output, which clocks the data transfers, one bit
per clock pulse. Each SPI device on the bus correspondingly has
three pins: Serial Data Out (SDO), Serial Data In (SDI), and System
Clock (SCK). The MOSI line is connected to the master’s SDO pin
and the slaves’ SDI pins, and the MISO line is connected to the
master’s SDI pin and the slaves’ SDO pins. All slaves’ SCK pins are
inputs, connected to the master’s SCK output (Figure 12.1).
https://www.sciencedirect.com/topics/engineering/master-device
4/9
12/18/24, 11:11 AM
Master Device - an overview | ScienceDirect Topics
Show more
View chapter
Explore book
Read full chapter
URL: https://www.sciencedirect.com/science/article/pii/B9780124201651000123
1-Wire
Louis E. FrenzelJr, in
Handbook of Serial Communications Interfaces, 2016
Protocol
1. Master device sends binary 0 reset pulse for 480 µs to reset
the system.
2. Master device waits for slave(s) to send a binary 0 presence
pulse for at least 60 µs.
3. The master asks for the slave address with an 8-bit command.
Slave responds.
4. An 8-bit command byte is sent indicating the function the
slave is to perform. Commands include directions to slaves to
select/enable, ignore, read, write, match/compare memory,
switch, real time clock interrupt, etc.
5. Slave then either transmits or receives data in 8-bit segments
followed by the CRC.
6. Write/Read Operations
a.
Write binary 1 to slaves: Drive bus low for 6 µs. Release
View chapter
Explore book
Read full chapter
URL: https://www.sciencedirect.com/science/article/pii/B9780128006290000048
Advanced PIC18 Projects
Dogan Ibrahim, in
PIC Microcontroller Projects in C (Second Edition), 2014
Operation in the SPI Mode
Figure 7.46 shows a simplified block diagram with a master and a
slave device communicating over the SPI bus. In this diagram, SPI
module 1 is used. The SDO1 output of the master device is
connected to the SDI1 input of the slave device, and the SDI1
https://www.sciencedirect.com/topics/engineering/master-device
5/9
12/18/24, 11:11 AM
Master Device - an overview | ScienceDirect Topics
input of the master device is connected to the SDO1 output of the
slave device. The clock SCK1 is derived by the master device. The
data communication is as follows:
Figure 7.46. A Master and a Slave Device on the SPI Bus.
View chapter
Explore book
Read full chapter
URL: https://www.sciencedirect.com/science/article/pii/B9780080999241000071
Product development overview
Seeram Ramakrishna, ... Wee Eong Teo, in Medical Devices,
2015
8.7 Closure
Once the product development phase has been completed, the
next phase is to transfer the product design to production. This
requires close cooperation between the design team and the
manufacturing department. A device master record (DMR) as
required by the FDA is a good guidance on the type of information
that needs to be generated. Required information is as follows:
(1) Device specifications including drawings, composition,
formulation, component specification, and software
specification;
(2) Production process specification including equipment
specifications, work instructions, and environment;
(3) Quality assurance work instructions including acceptance
criteria;
(4) Packaging and labeling specifications and work instructions;
and
(5) Installation, maintenance, and servicing procedures and
methods.
CE mark requires a technical file to demonstrate compliance with
the relevant directive(s) This is in some ways similar to the DMR
Show more
https://www.sciencedirect.com/topics/engineering/master-device
6/9
12/18/24, 11:11 AM
Master Device - an overview | ScienceDirect Topics
View chapter
Explore book
Read full chapter
URL: https://www.sciencedirect.com/science/article/pii/B9780081002896000089
Introduction to robot-assisted
minimally invasive surgery (MIS)
V. Vitiello, ... G.-Z. Yang, in Medical Robotics, 2012
1.3.2 Master–slave surgical systems
Master–slave systems incorporate the lowest level of autonomy
because the motion of the surgeon’s hands is replicated by the
surgical robot. The two parts of the system are physically
separated so that this control modality is considered as
teleoperation and has the potential for treating patients from afar.
The most common teleoperated MIS system currently available on
the market is the da Vinci surgical system by Intuitive Surgical Inc.
(Sunnyvale, CA) (Guthart and Salisbury, 2000). Although it was
initially developed to perform cardiothoracic surgery, currently its
main application is laparoscopic radical prostatectomy. The
system consists of a master console and a slave, patient-side cart
placed in the same operating room, which houses an endoscopic
camera and up to three surgical tools, as shown in Fig. 1.4a.
Show more
View chapter
Explore book
Read full chapter
URL: https://www.sciencedirect.com/science/article/pii/B9780857091307500016
https://www.sciencedirect.com/topics/engineering/master-device
7/9
12/18/24, 11:11 AM
Master Device - an overview | ScienceDirect Topics
System Interfaces for Industrial
Control
Peng Zhang, in Industrial Control Technology, 2008
3.4.3.1 HART Protocol Model
HART communication uses a master–slave protocol which means
that a field device as slave speaks only when it is spoken to by a
device as master. In every communication, a master device sends
a “command” message first; while receiving this command
message, the slave device processes it and then sends back a
“response” message to that master device (Fig. 3.46). Both the
“command” and “response” messages include the HART-data and
must be formatted in accordance with the relevant HCF (HART
Communication Foundation) specifications.
Figure 3.46. The HART master–slave protocol model.
The HART protocol can be used in various modes for
Show more
View chapter
Explore book
Read full chapter
URL: https://www.sciencedirect.com/science/article/pii/B9780815515715500049
Related terms:
TV, Frequency Shift Keying,
Personal Computer, Internet of Things,
Food and Drug Administration,
Human-Machine Interface, Multiplexer,
Bus Master, Slave Device, Transducer.
https://www.sciencedirect.com/topics/engineering/master-device
8/9
12/18/24, 11:11 AM
Master Device - an overview | ScienceDirect Topics
Recommended publications
Fusion Engineering and Design
Journal
Mechatronics
Journal
Journal of Network and Computer Applications
Journal
Measurement
All content on this site: Copyright © 2024 Elsevier B.V., its licensors, and contributors. All rights are
reserved, including those for text and data mining, AI training, and similar technologies. For all open
Journal
access content, the Creative Commons licensing terms apply.
https://www.sciencedirect.com/topics/engineering/master-device
9/9