For someone that uses roclink as much as me it can get tedious having to enter the default User ID (loi) and Password (1000) over and over again. There is a little known Roclink 800 Login Shortcut Key that can help save you a few seconds each time you try to login. At the RocLink 800 [...]
There are essentially 2 ways to read Analog inputs: reading current or reading voltage. Current is generally the most common because it can reach longer distances across the wire without losing analog input signal. Voltage, on the other-hand, will degrade over long distances producing inaccurate readings. When working with devices that only read 1-5V [...]
There are two separate representations of the Roclink “registers” called TLPs (Type/Logical/Parameter). They can be viewed as either Text such as AIN A1, EU – Analog Input, A1, EU value, or they can be viewed as the more commonly used numeric format 3,0,14. The Roclink Protocol Manual will use the [...]
After dealing with some problems with a process control feedback loop or proportional-integral-derivative controller (PID) I thought it would be helpful for other people going through the same problems. We had highly fluctuating pressure so using a Back Pressure Control Valve we set up a feedback look that reading the [...]
