1. JCOP - 17 october 2001IT/CO E. Mazel J. Rochez PLC OS sequence INPUTS Watch status and values of HD inputs PROCESS Inputs are processed according to a Policy defined by the developer OUTPUTS HD outputs assignment

2. JCOP - 17 october 2001IT/CO E. Mazel J. Rochez PLC cycle t Collect all IO informations Fetch all IO informations PLC cycle Watchdog delay ININ OUTOUT Code ININ OUTOUT Execute the code : sequential ladder, structured instruction list state level Grafcet;

3. JCOP - 17 october 2001IT/CO E. Mazel J. Rochez Memories IO memory Point to IO Input :%IW4.0 Output :%Qw4.0 Input %I1.0 Output %Q1.16 Data memory saved values %M123 %MB10 %MW4 %MF100 Constant memory fixed values %KB1 %KW100 %KF1032

4. JCOP - 17 october 2001IT/CO E. Mazel J. Rochez PLC hardware configuration This is where you configure the hardware settings of your PLC platform: CPU choice Power supply choice Communication protocols choice Physical Inputs/Outputs configuration

5. JCOP - 17 october 2001IT/CO E. Mazel J. Rochez Adding a new physical input (1/) example with a temperature sensor: pt100 A rack, a power supply and a CPU have already been chosen:

6. JCOP - 17 october 2001IT/CO E. Mazel J. Rochez Adding a new physical input (1/) example with a temperature sensor: pt100 Select an analog input module for your temperature input:

7. JCOP - 17 october 2001IT/CO E. Mazel J. Rochez Adding a new physical input (1/) example with a temperature sensor: pt100 Configure the module you have selected to fit the sensor device:

8. JCOP - 17 october 2001IT/CO E. Mazel J. Rochez Adding a new physical input (1/) example with a temperature sensor: pt100 Hardware configuration is now OK

9. JCOP - 17 october 2001IT/CO E. Mazel J. Rochez Adding a new physical input (1/) example with a temperature sensor: pt100 The hardware configuration is updated The temperature value can be accessed at the memory cell referenced by: %IW4.0 because:

10. JCOP - 17 october 2001IT/CO E. Mazel J. Rochez Simple coding Temperature is in 1/10 of degree Voltage is in microVolt Through the use of symbols table we have :

11. JCOP - 17 october 2001IT/CO E. Mazel J. Rochez OPC access All symbols are exported to a Flat file *.scy The import is also possible

12. JCOP - 17 october 2001IT/CO E. Mazel J. Rochez OPC server setting

13. JCOP - 17 october 2001IT/CO E. Mazel J. Rochez OPC client access