AS-interface gateways provide seamless communication with standard, safety networks

Pepperl+Fuchs' ENX Series AS-Interface Gateways supports Modbus/TCP and Ethernet/IP protocols with advanced features for enhanced network performance and diagnostics retrieval.


Pepperl+Fuchs ENX Series AS-Interface Gateways support both Modbus/TCP and EtherNet/IP protocols for seamless communication with standard and safety networks in one gateway. They also include a number of advanced features for enhanced network performance and diagnostics retrieval.

“These gateways provide more than just an easy transition from Ethernet to AS-Interface. Where in the past two separate gateways were required to connect to Modbus/TCP and EtherNet/IP, with ENX the entire AS-Interface network is controlled by a single, very powerful, AS-Interface gateway,” says Tim Cicerchi, Product Manager, Industrial Bus and ID Systems, Pepperl+Fuchs.

With ENX gateways, 992 I/O are handled asynchronous to the Ethernet traffic. These fast gateways also scan every AS-i node in 150µs, which enables up to 62 safety e-stops, magnetic switches, and safe outputs in one safety program, said to be easy to use.

Single master, dual master and dual master with built in safety monitor versions are available to satisfy various AS-Interface application requirements. All models come standard with integrated duplicate address, noise, and ground fault detection functionality. Dual network versions feature redundant power supply connections where either power supply can fail, and the gateway will continue to run while reporting the error to the upper level system.

Options of note include a16-channel safety version with up to 4 onboard safety channels, where up to 16 channels can be remotely activated using safe output modules. An available memory card enables users to quickly and easily program remote gateways, and to transfer a gateways configuration and safety program from a failed gateway to a replacement.

“The built in memory card is a very innovative approach to reducing downtime. In the past a maintenance engineer or programmer would have to get a laptop out and connect using Ethernet or RS-232 serial connections. Only then could a download be made to a new gateway. Now a simple swap of memory cards and a few key presses on the keypad will transfer the data automatically,” explains Cicerchi.

Gateways are modules that form an interface between the AS-Interface and higher-level buses. Users can install gateways to provide a solution for complex applications using standard products. The gateways act as a slave for the higher-level bus.


Read more about industrial networks at:

... and more about wireless at

- Edited by Amanda McLeman, 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.