How is the PID algorithm used in plc?
The PID algorithm controls the output to the control point so that a setpoint is achieved. The setpoint may be entered as a static variable or as a dynamic variable that is calculated from a mathematical operation. For many years, the PID algorithm was not accepted as a function suitable for a PLC.
Which is an example of a PID controller?
For example, the temperature control system in our house may have a SP of 22°C. This means that The PID controller looks at the setpoint and compares it with the actual value of the Process Variable (PV).
How does proportional only work on a PID?
In Proportional Only mode, the controller simply multiplies the Error by the Proportional Gain (Kp) to get the controller output. The Proportional Gain is the setting that we tune to get our desired performance from a “P only” controller. If we put Proportional and Integral Action together, we get the humble PI controller.
What are the Min and max values for PID?
The min for the PID output is 0 and the max is 16383. These are the same values as are used for the PID input. To use the entire range of values for a PID input or output, choose the range 0 to 16383. Always strive to use the entire range of the PID block when programming an integer PID block.
How many outputs does a micro plc have?
The optional D0-06LCD is an easy to install cost effective LCD display panel for the DL06 micro PLC. The DL06 PLC line includes nine models to choose from in both AC and DC powered models. All nine DL06 PLC models include 20 inputs and 16 outputs for a total of 36 built-in discrete I/O in a variety of AC, DC and relay combinations.
What can a dl06 plc be used for?
All DL06 PLCs have two built-in communication ports that can be used for programming, operator interface, networking, etc. One of the DL06 ports is a multi-function port capable of RS232C, RS422, or RS485 communication. Supports networking for MODBUS RTU master/slave, Ethernet, DeviceNET slave, Profibus slave, and ASCII in/out
How many inputs and outputs does the dl05 have?
DL05 – Our smallest PLC offers six I/O combinations of AC, DC, and relay I/O, and advanced programming functions such as PID and drum sequencing. The DL05 also features: Eight inputs and six outputs