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
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