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Mobile device use - Russian Roulette or the new normal?

Many of us have a either a smartphone or tablet, and some of us have both. We use them for all sorts of tasks every day. Are we simply pushing our luck? Are we rolling the dice every time we use them? Or can we use them in a secure manner that helps us be more productive and thus have a higher quality of life?

This week's blog is going to look at some pros and cons of the humble mobile device and what steps we can take to even out the odds.

Topics: groov, Internet of Things, Remote monitoring, Electronics, Tips, IoT, Networking

• What if your hard drive fails while you're developing a PAC Control strategy?
• What if you need to update an old strategy built by someone else?
• What if ..?

That's when you're really glad you archived your strategy.

Topics: Tips, optonews, PACs, OptoNews 2015-06-03

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Top 5 Myths for Securing a Wifi network

If you want to use a mobile device in your automation system, you are going to need to use Wifi for the simple fact that most mobile devices do not support a physical Ethernet connection to your network.

Adding Wifi is often seen as a security risk. Not done right, it can be; done right, it need not be.

Like many technolgies, Wifi has matured and become more robust. That said, poor advice still circles the web on how to secure your Wifi network that simply doesn't work anymore. Let's take a look at a few myths about securing Wifi that need busting, and what techniques we can use to bust them.

Topics: groov, Internet of Things, Remote monitoring, Electronics, Tips, IoT, Networking

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Security is a trade-off between easy to use and secure.

In this blog we are going to take a look at a method of security that is often overlooked and yet can make a system a lot more secure.

The humble password.

For years we have all been taught to use a password that is a mix of letters and symbols. But should we rather be using a passphrase?

Which is better to use and why?

Topics: groov, Internet of Things, Tips, IoT, Networking

You already know that the OptoForum is a great place to get your questions asked and answered. 

It's also a great place to learn about using tables, subroutines, and pointers in PAC Control; built-in protocols like SNMP in SNAP PAC controllers; and more. 

The new forum called 101 Mini-Lessons gets you started learning about a variety of subjects:

Topics: Tips, optonews, PACs, OptoNews 2015-05-21

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Nothing like a cold shower to get you moving:

Most of us never give any thought to our hot water service pilot flame. But when it goes out...cold shower first thing in the morning, anyone?

Bleh.

The first time it happened, I simply re-lit the pilot and showered with cold water. After the third cold shower, I knew it was time to be a little more proactive!

Topics: Energy management, groov, Internet of Things, Remote monitoring, Water & wastewater, Electronics, Tips, IoT, Machine builder

Here's a tech tip for the more adventurous among you, who'd like to learn a faster, shorter way to code repetitious actions on similarly named variables or I/O.

A recent post on the OptoForum asked for an OptoScript equivalent to Eval(), a function used in a variety of programming languages, typically to act on expressions or operators passed in a string.

We won't get into the question of whether Eval() is "evil" or not (apparently it has a reputation for trouble in more than one language). Instead, we'll move right into how you can do good things by using a similar approach in your PAC Control strategy—and clean up a lot of spaghetti code in the process. 

Topics: Tips, optonews, OptoNews 2015-04-29

Say you've got a dry contact switch you want to monitor so you know when it's closed. Could be a level sensor or pressure indicator, a magnetic reed switch or snap-action micro switch, or maybe a relay contact.

There are lots of ways you could do that, but often the best way is to use a SNAP-IDC5-SW digital input module. Why?

• It supplies 15 volts of power to an external dry contact switch.
• You only need 2 wires to connect the switch to the module.
• You can monitor 4 switches from 1 module.

Ben Orchard raves about this module in his recent blog post on monitoring water usage, and with good reason: it makes life easier by saving wiring time and complexity.

Topics: Remote monitoring, Tips, optonews, OptoNews 2015-04-15

And the answer is: YES

I know it sounds like an April Fool's joke, but it's really true: you can build a groov mobile interface for your older Optomux system.

So you can monitor and control it from your smartphone or tablet. 

It works in spite of the fact that Optomux has been around since 1982, while groov is all about today.

Topics: Videos, groov, Tips, optonews, Migration, OptoNews 2015-04-01

Today's tech tip is for anyone spec'ing new I/O for your system. It's a "hidden gem" on our website: the SNAP I/O Configurator.

This fun tool helps you build an I/O unit—mounting rack, I/O processor, and SNAP I/O modules.

Pick a rack-mounted controller or brain for I/O processing. There it is, on the rack.

Need a Factory Mutual approved, channel-to-channel isolated, digital input for DC voltage? Piece of cake. Check the boxes and choose the one you want.

Add all the analog, digital, and serial modules you need. If the rack is too large or too small, just click to change it. 

Topics: Tips, optonews, OptoNews 2015-03-18