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Let’s Build a Lab

One of the questions we receive from our students is how to build a practice lab for building automation. In this quick guide, we will discuss exactly what you need for your own lab.

A couple of quick points, we will do our best to keep part numbers up to date but they may change, just send us an email at [email protected] and we will adjust. We focused in on Niagara and EasyIO for this lab for a few reasons:

  • Niagara has a large market share and covers a large audience (I’d also argue it’s one of the most difficult BAS interfaces to learn, if you can use it, you will be fine with most other BAS).
  • EasyIO provides a low-cost controller that includes Wireless and Wired IP, TCom, MS/TP, SOX, and SQL. It also comes with a free programming software suite.

The Supervisory Device.

I recommend the JACE-8000-DEMO without I/O. This will give you a platform that you can work with for all server/supervisor needs. The only downside is that you will need a licensed copy of Niagara Workbench to work with the JACE. You will need to purchase the same brand of Workbench as your JACE.

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Field Contoller

I recommend a EASYIO FW-08. This controller is reasonably priced, includes IP wired and wireless, MS/TP, TCom, and Modbus.

Image result for EASYIO FW-08

Power Source

I recommend two separate power sources. One for your controllers and one for your I/O this will let you work with both internal and externally sourced power.

The transformer I recommend is the PSH100AB10-EXT2.

Inputs

I recommend you get the following inputs

  1. Resistive Temperature Both 1K Ni RTD and 10K Type 2 Thermistor
  2. Pushbutton Reset Air pressure Switch
  3. CO2 Dual Output 0-10VDC or 4-20mA

Resistive Temperature

I prefer to get my sensors from BAPI. I’ve had good success with them even if they are a bit more expensive. Make sure to get a sensor and not a transmitter. I recommend one wall mount sensor and one duct mount sensor. Bonus points if you buy an averaging sensor as well but it is not necessary.

Pushbutton Reset Air pressure Switch

There’s only one Pressure reset I trust and that is the Cleveland Controls AFS-460. Get this model as it comes with the push-button reset.

Cleveland Controls Air Sensing Switch, Manual Reset Type, 0.06 to 0.8 Differential (In. WC), SPST NC Model: AFS-460

CO2 Dual Output 0-10VDC or 4-20mA

For pressure sensors I prefer Setra but for CO2 Sensors I prefer Veris. The reason we are going with a CO2 sensor is that it is a lot easier to produce CO2 when we breath then to try to produce air pressure with a mag gauge and a squeeze ball setup.

I like the CWE model as it provides both a 0-10VDC and a 4-20mA output which is good for labs.

Outputs

I recommend you get the following Outputs

  1. Single Pole Double Throw 24VAC Coil with indicator rh1b-ulac24v
  2. Relay in a Box 120/24VAC/DC coil SPDT
  3. 0-10VDC or 4-20mA Non-Spring Return Actuator with Feedback

Single Pole Double Throw 24VAC Coil with indicator

IDEC’s are the way to go for rail-mounted ice cube relays. These are great for putting inside equipment where you can’t use a mud ring a RIBU1C (my goto relay).

I like the rh1b-ulac24v model as it gives us an indicator, two throws, and a 24VAC pole.

Relay in a Box 120VAC or 10-30VAC/DC coil SPDT

The RIB or Relay in a Box, is a tried and true staple for VFD’s and other solutions where we want to be able to see if the relay is active without opening up a panel. I like the RIBU1C for its simplicity.

0-10VDC or 4-20mA Non-Spring Return Actuator with Feedback

My personal favorite actuator for labbing is the Belimo LMB24-SR. This one has it all. O-10VDC or 4-20mA control, and feedback! This is a beautiful actuator for you to get used to controlling.

Conclusion

Some of you may be wondering why I did not include any potentiometers or switches. If I do fake values I like to do them in my software. I like to utilize physical devices to stimulate programmatic responses. With this lab setup, you can simulate almost any process loop you’d like to control.

Here is a complete list of the parts:

  • Supervisory Device- JACE-DEMO-8000 Quantity 1
  • Supervisory Software- Workbench Quantity 1 (Same Brand as the JACE)
  • Field Controller- EASYIO FW-08 Quantity 1
  • Power Supply- PSH100AB10-EXT2 Quantity 2
  • Resistive Temperature- BAPI 1K Ni RTD BAPI 10K Type 2 Thermistor (Ideally 1 Wall Mount and 1 Duct Probe) Sensor not Transmitter Quantity 1
  • Pushbutton Reset Airpressure Switch- Cleveland Controls AFS-460 Quantity 2
  • CO2 Dual Output 0-10VDC or 4-20mA- CWE Quantity 1
  • Single Pole Double Throw 24VAC Coil with indicator- RH1B-ULAC24V Quantity 3
  • Relay in a Box 120VAC or 10-30VAC/DC coil SPDT- RIBU1C Quantity 2
  • 0-10VDC or 4-20mA Non-Spring Return Actuator with Feedback- LMB24-SR Quantity 1

These are the exact parts and pieces we use in our courses that have been used to train thousands of BAS Professionals.