March 2004Fieldbus & Industrial Networking
Infrastructure
Procon Electronics is offering its multipurpose I/O module. This module incorporates both analog and digital I/O into a single product, and is ideal for applications that require remote I/O such as building management. The module is available with RS485 Modbus communications or with Ethernet Modbus TCP communications.
The new module consists of the following I/O:
* Two X RTD inputs for temperature measurement. RTDs supported are PT100, Ni120 or PT1000 and cover the range from -200 to +850°C. Two or three wire RTDs can be used.
* Two X analog inputs which can be configured as 0(4) to 20 mA current inputs or 0(2) to 10 V voltage inputs.
* One X analog output which can be configured as a 0(4) to 20 mA current output or a 0(2) to 10 V voltage output.
* Five X digital inputs. Internal counters are connected to inputs 1 and 2. These counters can count from 0 to 4294967295, and can also be configured as up/down counters.
* Two X digital outputs. These are NPN transistor outputs and can be used to switch an external relay if required. A watchdog timer can be enabled to ensure the outputs are switched off if there is no communications.
The MMDIOAIO (RS485 Modbus) module communicates on RS485 using the industrial standard modbus RTU protocol. Each module has a unique node address that is configured with DIP switches.
The MMTCPDIOAIO (modbus TCP) module communicates on Ethernet using the modbus TCP protocol. Each module is given a unique IP address for identification. These modules can be used on existing Ethernet networks and the information can be made available on the Internet. The modules also have a built in Web server. The Web server enables all process variables to be viewed from a PC running a Web browser, such as Internet Explorer, from anywhere on the network. This feature is excellent for diagnostic purposes and can be performed simultaneously with the modbus communications without interfering with the module operation. Up to four PLCs or PCs can access the same I/O module simultaneously.
The Modbus RTU and Modbus TCP protocols are widely supported by most PC scada software packages and by many PLCs.
A demonstration TCP module has been placed on the Internet and can be accessed from any PC on the Internet. Visit: http://192.96.43.120/</a>
Integrating fire alarm systems into building management systems Beckhoff Automation
Fieldbus & Industrial Networking
Fire alarm systems work independently of the building automation system. Schrack Seconet has developed a flexible gateway using ultra-compact industrial PCs and TwinCAT from Beckhoff, which can be used to flexibly convert a customer-specific communication protocol to a wide range of transmission standards.
Read more...Fire and gas suppression solutions for mission-critical industries
Fieldbus & Industrial Networking
By representing world-leading brands and focusing on fully integrated, certified systems, HMA South Africa is positioning itself as a trusted partner in fire detection, suppression and explosion-proof safety solutions across the continent.
Read more...The future of manufacturing
Fieldbus & Industrial Networking
Industrial automation is evolving at an unprecedented pace. At the forefront of this transformation is the Siemens SIMATIC ET 200SP HA Distributed I/O system. This is a flexible and scalable distributed I/O system for modern signal transfer from the field to the control level.
Read more...Time-sensitive networking RJ Connect
Editor's Choice Fieldbus & Industrial Networking
In this article, we will explore what is driving the rise of time-sensitive networking, how it is reshaping industrial efficiency, the challenges when deploying this technology, and ways to tackle these challenges.
Read more...Loop Signature 30: Nonlinearity in control loops (Part 1) Michael Brown Control Engineering
Editor's Choice Fieldbus & Industrial Networking
If nonlinearity occurs it means that if one is to carry on controlling with the same response to changes in load or setpoint, then the tuning of the controller will also need to be adjusted to meet the new conditions.
Read more...PC-based control regulates innovative dehumidifiers Beckhoff Automation
Fieldbus & Industrial Networking
Swedish company, Airwatergreen is breaking new ground in the dehumidification of air in industrial buildings and warehouses. The patented CVP technology reduces energy requirements and ensures an indoor climate that prevents corrosion and mould growth. PC-based control from Beckhoff regulates this innovative process.
Read more...Software security is a team sport
Information Security Infrastructure
Building and maintaining secure software is not a one-team effort; it requires the collective strength and collaboration of security, engineering, and operations teams.
Read more...Troye exposes the Entra ID backup blind spot
Information Security Infrastructure
If you trust Microsoft to protect your identity, think again. Many organisations naively believe that Microsoft’s shared responsibility model covers Microsoft Entra?ID – formerly Azure AD – but it does not.
Read more...Ethernet connectivity for embedded systems
Fieldbus & Industrial Networking
Delivering Ethernet connectivity for embedded systems, XPort ETH Click is a compact add-on board from MIKROE, the embedded solutions company that dramatically cuts development time by providing innovative hardware and software products based on proven standards.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version