China aux auxiliary power connector Purchasing


A control design reader writes: We produce OEM and customized machine - Discrete Manufacturing - and are looking for ways to reduce integration time and overall cost. Specifically, we are working on I / O termination method. Our field devices from wires or cables to move the housing terminal block. We want to reduce the amount of wiring harness, and terminate I / O at the edges, but the technology and reliability issues are part of the discussion. There are many network protocols and hardware to choose from, so choose what and how to improve efficiency in the I / O termination? We have the 

to follow protocol 
to reduce network cabling costs are issues of industrial development to be solved. Unless you have a very specific application requirements, such as high-speed motion control application requirements needed, otherwise most industrial Ethernet will be able to process your machine cycle time. 

There are many industrial Ethernet options, usually there a "best" solution. Network "religious war" is more about integration solutions provider with the ability Products cohesive, well-implemented in the entire product line, rather than a network protocol over another protocol "better." 

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so if you have a preferred vendor, use the vendor's local network protocol. However, if you want to use equipment from different vendors, then use them have a public network. Priority should be given PLC network protocols supported by the controller, because the local network controller is usually easier to implement than competing networks. 

In short, the Industrial Ethernet should be able to meet most (if not all) applications requirements. And, for your network protocol selection, you can adapt to different protocols through the use of gateways and translators as needed. This allows you to select the best components in the class, while reducing integration time and costs. 

Phil Marshall / CEO / Hilscher North America 

for the user to select
In the choice of I / O termination method, there are a few things to consider. First, consider the size of the machine. Small slip machines for distributed I / O may not have much benefit, because travel time is very short, but you can still be optimized to reduce integration time. Easy to use on the terminal block in the terminal field, the lever without tools, or the use of sensors and actuators IP67 connector. They are easy to install and connect 8-10 local I / O points, then there is a cable route back to your control cabinet. 

For larger systems physically distributed I / O is very useful. In some cases, the user may use both HMI and PLC, using a field bus coupler to remote distributed I / O monitor. Fieldbus there are many good choices; however, the trend is Ethernet-based devices. 

There are many protocols, including Modbus TCP / UDP, Ethernet / IP, EtherCAT and Profinet. In many cases, choose the fieldbus depends on the end user's factory in the dominant bus. Maintenance personnel can more easily use their habit fieldbus. Modbus TCP / UDP has been around for decades, it can be easily used in the field devices such as drives or flowmeter and the like. 

EtherCAT is the latest protocol, offers many advantages in terms of speed and diagnostics. EtherCAT growing at rapid growth on a global scale. All of these provide reliable Ethernet communication in industrial environments. In the choice of which one to use, choose the type of application and user experience. 

CHARLIE NORZ / Automation product manager / the Wago 

multiport network 
Machinery Manufacturers / OEMs often necessary to connect a plurality of discrete sensors and other equipment back to the control panel. One option is a remote I / O, each input signal is converted to a digital communication, but tend to be expensive and can limit the use of the controller to receive and interpret digital signals. A cheaper solution is simply a combination of a set of input signals into a cable junction box specially designed for this purpose.

The multi-port connector block interconnect various machine control applications (such as packaging and delivery system apparatus) provides a simple and effective method for the wiring of the machine organization. These systems usually have a number of I / O points, such as a sensor or an electromagnetic valve, in one position. These devices are typically hard-wired to a single junction box or connection back to the main control cabinet. Multi-port junction box provides a more efficient and economical solution: a main cable is back to the main cabinet, and thus wiring errors, heavy wiring and I / O associated with the replacement cost is greatly reduced. M12 wiring can be based on industry standards.

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