Issues with SCM configuration and Excel simulation in PKS

1 In the PKS coefficients, it is desired to enable the PID module to automatically adjust the OP value in manual MAN mode through SCM configuration; for example, to automatically change the OP from 0 to 10% using SCM. How can this be achieved? In the PID module, I only found SP ramping, but I’m not sure if there is OP ramping; I also don’t know how to set it up Reply: In the SCM block, set PID.MODEATTR to 2 (PROGRAM), PID_MODE to 0 (MANUAL), and PID.OP to a value controlled by the program (this can be a value from an external function block, or it can be output by a calculation block or linear block; this allows for a ramp rate of 0–10%). If only the PID function is used, that should also work. If you want to avoid large changes in the PID output, you can set a RATE OF CHANGE LIMIT, so that the rate of change per second does not exceed the desired value. In the PKS system, the relevant functions have already been configured; if you want to use Excel to simulate field data in order to check whether the configuration is correct, how can this be done? This is the same question mentioned in another post. http://bbs.hcbbs.com/thread-1329848-1-1.html Reply: It’s troublesome to use EXCEL to simulate field data; it’s simpler to use OPC CLIENT to simulate the field values through OPC

1 In the PKS coefficients, it is desired to enable the PID module to automatically adjust the OP value in manual MAN mode through SCM configuration; for example, to automatically change the OP from 0 to 10% using SCM. How can this be achieved? In the PID module, I only found SP ramping, but I’m not sure if there is OP ramping; I also don’t know how to set it up Reply: In the SCM block, set PID.MODEATTR:=2 (PROGRAM), PID.MODE:=0 (MANUAL), and PID.OP to a value controlled by the program (this can be a value from an external function block, or it can be output by a calculation block or a linear block; this allows for a ramp rate of 0–10%). Additional question: It is possible to obtain the output value for PID.OP directly using a calculation block. However, there is a timing issue here – if I want PID.OP to increase from 0 to 10% over 3 minutes, how should this time period be determined? Initially, I wanted to achieve this using an SCM loop: for example, I wanted PID.OP to increase from 0 to 10% within 3 minutes. By dividing 10% by 3*60, I could determine the change in PID.OP per second; thereafter, a 1-second delay was applied within each loop iteration. As a result, the execution speed of the SCM is on the order of milliseconds, which allows PID.OP to reach 10% from 0 within 3 minutes. Will this work? 2 In the PKS system, the relevant functions have already been configured; to simulate field data using Excel in order to verify whether the configuration is correct, how can this be achieved? This is the same issue mentioned in another post. http://bbs.hcbbs.com/thread-1329848-1-1.html Reply: It’s troublesome to use EXCEL to simulate field data; it’s simpler to use OPC CLIENT to simulate the field values through OPC. Additional question: How exactly can this be done using OPC CLIENT to simulate field values through OPC? Could you please recommend specific methods and steps? I’m a beginner and don’t quite understand it! Thank you so much! Additionally, it’s complicated to use Excel to simulate real-world data. Are there any specific methods and steps for this? I remember that during the training, the instructor used Excel simulation data, and I didn’t pay much attention to it at the time.