OptoForum member tohox recently posted a question about using PID control loops on a SNAP-PAC-R1 rack-mounted controller.

The issue? A really long dead loop time. 

"The time delta between the moment the strategy opens a given loop's valve [and] starts the pump+furnace and the moment a temperature increase is measured can sometimes be on the order of an hour," tohox notes.

Topics: Energy management, Tips, optonews, PACs, I/O, Building management, Modbus, PID loop control, OptoNews 2016-09-28

When you buy a new SNAP I/O module today, you may find that the printing on it looks a little different from ones you already have.

Don't be concerned; there's no difference in how the module functions.

Topics: optonews, I/O, OptoNews 2016-09-14

We're looking forward to seeing you at one of these shows!

Learn about the newest technology in factory, process, and building automation, and take advantage of networking and business development opportunities.

Topics: Process control, Discrete control, groov, Remote monitoring, IoT, optonews, PACs, Events & conferences, I/O, OptoNews 2016-09-14

Actually you can buy this flexible analog input module right now. You'll just need a SNAP PAC brain or R-series controller with firmware R9.5a in order to use it—coming soon!

Designed for 3-wire RTD temperature inputs or high-resolution resistance measurement, the new SNAP-AIRTD-8U analog input module has, yes, 8 points, each individually software configurable.

Topics: Energy management, Process control, optonews, New products, I/O, OptoNews 2016-07-06

Move up to SNAP PAC—and keep racks and field wiring intact

Have you seen some of our newer high-density, high-speed, or multifunction I/O modules and wished you could use them in your legacy SNAP Ultimate or SNAP Ethernet I/O system? 

Have you wanted to build an easy-to-use groov mobile interface for your legacy system?

Topics: Updates, optonews, PACs, New products, Migration, Integrators, I/O, OptoNews 2016-07-06

ATEX is the name commonly given to the two European Directives for controlling explosive atmospheres in workplaces.

Several Opto 22 products are now approved for both standards and offer you options for applications in potentially explosive areas.

Topics: Process control, Food & beverage, Discrete control, Machine builder, optonews, PACs, OEM, Integrators, I/O, Oil & gas, OptoNews 2016-06-08

Say you own a 30-year-old enterprise data center in the Arizona desert, and you're starting to have some problems:

• Aging HVAC and mechanical systems are increasingly inefficient in the hot climate.
• Security systems are no longer adequate.

Topics: Energy management, Case studies, optonews, PACs, Integrators, I/O, Building management, Security, OptoNews 2016-05-25

If you're near Cambridge, Ontario, on June 7, be sure to join Opto 22's Lloyd Romeo at the SORT Technology Showcase, sponsored by SORT Production Products Ltd.

Topics: Process control, groov, optonews, PACs, Events & conferences, I/O, PAC Project, OptoNews 2016-05-25

Confused about sinking and sourcing when using digital I/O in DC circuits? 

Judging by the response to our past blog posts on this issue, many people are. So we've pulled together a lot of practical information and put it into a short new technical note.

Topics: Discrete control, Tips, optonews, I/O, OptoNews 2016-05-11

Several products you use or may need have just completed UL testing and are now UL recognized. You'll see them sporting the official UL logo.

The following have all been recently UL approved. 

Topics: optonews, PACs, Integrators, I/O, OptoNews 2016-03-30