Introduction to COSMAC 1802 I/O Operations COSMAC 1802 I/O Operations allow us to get data from an input port, and write data to an output port. In this case, I’m using the 1802 membership card. On the 1802 Membership Card, we use Port 4 for both the switches and the Read More »
Introduction to Buffering Inputs and Outputs There are several reasons for Buffering Inputs and Outputs. First, the tags are easier to understand for those doing troubleshooting. Secondly, it holds data the same for one scan. Thirdly, I/O changes (Input and Output changes) to your system are easier to make. Today, Read More »
Introduction to the SLC-500 Digital Input Module The SLC-500 Digital Input module detects the status of field devices which are either on or off. This is any type of switch. For example: float switches, pressure switches, push buttons, and selector switches are digital input devices. The auxiliary contacts of a Read More »
