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The 4-20 mA current loop has been the standard for signal transmission and electronic control in control systems since the 1950's. The current loop is a common method of transmitting sensor information in many industrial process monitoring applications—typically in...
All iSMA Universal Inputs cannot read a 4-20mA signal directly, so to read a 4-20mA sensor, you will find in the box of every iSMA device (with Universal Inputs) a set of 200 Ohm resistors. It is extremely simple to measure a 0-20 mA analogue signal from a sensor with...
To use the Migration Tool provided by Tridium you will need a backup(dist file) of a station that is running on AX 3.8, |You cannot migrate only the bog file or a station running a version lower than 3.8. Backup the AX station If you need to include the alarms and...
Connecting and configuring the device 1) Power supply You can use 20Vac to 28Vac or 20Vdc to 28Vdc The power required depends on whether you are powering in AC (24VA) or DC (14W). A dedicated UL-listed, Class 2, 24Vac transformer/24Vdc power supply with 1 amp capacity...
Often the controls manufacturers provide you with all the tools required to get the job done, but there are certain situations where you need to use 3rd party software or websites for certain tasks. I have a go-to set of trusted software solutions that I use time and...
Here are 5 items that I hate going without when commissioning any project. These aren't your typical items, like screwdrivers and multimeters; they are bonus items that make your day much easier, but they wouldn’t be a showstopper if you didn’t have them. All these...
This is BMS 101. If you can clearly identify your inputs and outputs, then you are going in the right direction. A key thing to understand in the world of BMS is the difference between inputs and outputs, often referred to as IO. Most of you will probably be thinking...
I am not an expert on the Modbus protocol, and many of the more technical aspects go over my head. Having said that, when using Modbus in the field, the finer, more technical details of the protocol are not necessarily worth knowing. I need to know what I am looking...
