Show Point Relations
Did you know that you can easily discover how points are related to each other through Logic or PID? This can come in handy when you have an Output point that has been commanded but you don’t know exactly where the command is coming from.
Find a point that you are interested in and click it. If it’s an Input point, it will go straight to the Program Screen. If it is an Output, click Program to get to the Program screen. Then click the Show Point Relations button in the top row to the right of the History button. Continue reading George’s CBAS Tips, October 2018
Alarm Point Colors
Did you know that it is possible in CBAS for certain points to show different background colors? This works on any Binary software point that is programmed into the DPU. Under the Program Alarm screen, you will see an option to “Change Point Color ONLY”.
Continue reading George’s CBAS Tips, September 2018
CBAS Power User Profile
Hopefully, you know by now that Computrols prides itself on empowering our end users. There is nothing we love more than seeing our customers take our system and run with it. As a way of recognizing these self-performers, we’ll be doing a series of interviews featuring these individuals as CBAS Power Users. If you are a CBAS Power User and would like to be included in one of our upcoming articles, please email us at email@example.com.
CBAS Power User: Alec Andrews
Chief Engineer, JLL
Tell us a little about yourself…
I have a BS in Nautical Science from Maine Maritime Academy as well as an AS in Electrical Engineering from New England Institute of Technology. I am a licensed electrician in both Virginia and Massachusetts and am a Chief Engineer with JLL at One Post Office Square in Boston where I have been for the past 13 years.
How long have you been using CBAS?
I have been using CBAS for the past 5 years. Continue reading CBAS Power User: Alec Andrews
How to Set Up Tenants to Schedule Overtime Air and Lights
The CBAS Web product was originally introduced so that tenants could schedule their own overtime air and lights while making it easy for building management to bill them these services. This is still true and it’s really easy to set up. This feature saves money because you don’t have to pay someone to take calls and enter the tenant’s overtime requests into CBAS. Management can now also setup tenants to handle their own access control cards, but let’s talk about overtime tenant billing for now. Continue reading George’s CBAS Tips, August 2018
The Importance of the Probe in BACnet
When setting up 485 communication to a BACnet device like an AHU, it is important that you Probe it. This gets you some important information:
- Instance number is a good thing because if you add it to the program screen of the controller, it connects much faster when CBAS is restarted. Instance is usually provided in the Probe file but can sometimes have a different name.
- A Probe gets you the list of points that are on the AHU controller. Then you can add them from the Probe file easily by clicking the controller then click Add Points From Probe File.
- Perhaps the most important advantage to probing is that it automatically sets a few parameters to be used by CBAS that can improve performance. Note that you can alternatively set these parameters manually.if probing isn’t possible The most useful of these settings are are COV and Read Multiple. COV is Change of Value and if it is available, it sends any changes in value to the host. Read Multiple reads up to 14 points at a time. By default, CBAS only reads one point at a time unless you have Read Multiple set.
Continue reading George’s CBAS Tips, July 2018
Disabling Heat on a VAV for Summer
During the Summer, you might want to make sure that your heat is disabled on VAVs so that you don’t waste energy. This is especially true if you have electric heat strips as opposed to hot water coils, because you won’t have hot water when your boilers are off anyway. Continue reading George’s CBAS Tips, June 2018
Alarms in CBAS
All points in CBAS give you the ability to setup an Alarm to show when the point is in a condition that it shouldn’t be in, or at least warrants a notification. Alarms are always on a red banner at the top of the CBAS program if setup to be acknowledged. Otherwise, only the status part of the point turns red. Yellow banners are considered Troubles, not Alarms. These are generated by the system based on system problems or controller communication\power activity. These “Troubles” cannot be turned off. Green banners can be seen if controllers are set up with an alarm to indicate a download to the controller. Continue reading George’s CBAS Tips, May 2018
As a part of our services, Computrols offers 24/7 phone support to all of our customers. If you have ever taken advantage of this offering, you have likely spoken to our Technical Support Manager, George Hingle. George has been employed by Computrols for over 15 years and is one of our most knowledgeable team members when it comes to troubleshooting in CBAS. As a means of building on our already robust FAQ page, George has agreed to share some common issues he sees in our newsletter each month. Continue reading George’s CBAS Tips, April 2018
As a part of our services, Computrols offers 24/7 phone support to all of our customers. If you have ever taken advantage of this offering, you have likely spoken to our Technical Support Manager, George Hingle. George has been employed by Computrols for over 15 years and is one of our most knowledgeable team members when it comes to troubleshooting in CBAS. As a means building on our already robust FAQ page, George has agreed to share some common challenges he sees in our newsletter each month. Continue reading George’s CBAS Tips, March 2018
Optimal Start/Stop is used to anticipate the heating or cooling needs of a space by starting equipment early enough to reach setpoint just at the beginning of scheduled occupancy. The Optimal Start/Stop function in CBAS does this by calculating the difference between the actual temperature and the occupied temperature setpoint. Based on a heating or cooling slope, the unit is started early enough to bring the space temperature to the desired level. Continue reading What is Optimal Start/Stop and How Does it Work?