IO modules meet safety standards

Siemens has expanded its Simatic ER 200iSP I/O system to meet safety standards IEC 61508 up to SIL 3 or ISO 13849-1 up to PLe e.


Siemens has expanded its Simatic ET 200iSP I/O system with three new modules to accommodate safety standards IEC 61508 up to SIL 3 or ISO 13849-1 up to PLe e. The modules are suitable for emergency shutdown, boiler protection and fire and gas equipment applications.

The ET 200iSP is a modular I/O system for hazardous areas, including gaseous and dusty atmospheres. Its sensors and actuators are connected directly to a bus system and the I/O system may be mounted in a non-explosion proof cabinet.

The I/O system is FM approved for mounting in Class 1 Div 2 and Class 1 Zone 1 areas connecting directly to devices mounted in Class 1 Div 1 and Class 1 Zone 0 without the need for external safety barriers.

The isolating transformer within the ET 200iSP is a bus isolating transformer, creating a Profibus DP intrinsically safe communications network.

Function modules, including an explosion proof power supply, Profibus DP interface modules, and up to 32 electronics modules in any combination are plugged into terminal modules. The ability to "Hot Swap" the electronic module during operation is a huge customer benefit to avoid costly downtime of stopping the controller. The firmware of the Profibus DP interface module may be upgraded as new firmware is available using a micro memory card (MMC) or over Profibus DP.

Redundancy is available with redundant power supplies and Profibus DP interface modules providing maximum uptime. When used in a redundant configuration, the power supplies are hot swappable and maybe replaced under power even in hazardous locations.

The ET 200iSP is configured and parameterized using Simatic Step 7 or PCS 7 software. Supporting Configuration in Run (CiR) system functions, the ET 200iSP configurations and parameterization may easily be modified during runtime.

Extensive diagnostic information is provided, pinpointing open or closed circuit faults. Fault information is sent to the host system, permitting fast online diagnostics from a central location. Standard diagnostic drivers are available for Siemens Simatic PCS 7 distributed control systems.

Process devices are linked with Highway Addressable Remote Transducer (HART) technology using an analog signal of 4-20 mA. A central station can transparently access HART process devices using a routing function with Profibus DP. As a result, most process instruments, including temperature, fill-level, pressure, and flow rate measuring equipment, may be accessed and configured. 

Siemens Industry Inc.

- Edited by Chris Vavra, Control Engineering, 

No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2013 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
A cool solution: Collaboration, chemistry leads to foundry coat product development; See the 2015 Product of the Year Finalists
Raising the standard: What's new with NFPA 70E; A global view of manufacturing; Maintenance data; Fit bearings properly
Sister act: Building on their father's legacy, a new generation moves Bales Metal Surface Solutions forward; Meet the 2015 Engineering Leaders Under 40
Cyber security cost-efficient for industrial control systems; Extracting full value from operational data; Managing cyber security risks
Drilling for Big Data: Managing the flow of information; Big data drilldown series: Challenge and opportunity; OT to IT: Creating a circle of improvement; Industry loses best workers, again
Pipeline vulnerabilities? Securing hydrocarbon transit; Predictive analytics hit the mainstream; Dirty pipelines decrease flow, production—pig your line; Ensuring pipeline physical and cyber security
Upgrading secondary control systems; Keeping enclosures conditioned; Diagnostics increase equipment uptime; Mechatronics simplifies machine design
Designing positive-energy buildings; Ensuring power quality; Complying with NFPA 110; Minimizing arc flash hazards
Building high availability into industrial computers; Of key metrics and myth busting; The truth about five common VFD myths

Annual Salary Survey

After almost a decade of uncertainty, the confidence of plant floor managers is soaring. Even with a number of challenges and while implementing new technologies, there is a renewed sense of optimism among plant managers about their business and their future.

The respondents to the 2014 Plant Engineering Salary Survey come from throughout the U.S. and serve a variety of industries, but they are uniform in their optimism about manufacturing. This year’s survey found 79% consider manufacturing a secure career. That’s up from 75% in 2013 and significantly higher than the 63% figure when Plant Engineering first started asking that question a decade ago.

Read more: 2014 Salary Survey: Confidence rises amid the challenges

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.