Posted 18 Apr 2012 (edited) Have anyone prepared FB with PID for ramp programming? I have CJ1G-CPU42H PLC example this ramp: ramp.xls Edited 18 Apr 2012 by rock0 Share this post Link to post Share on other sites
Posted 18 Apr 2012 I dont know but that seem to me something you should do with APR instruction. Share this post Link to post Share on other sites
Posted 29 Jul 2012 Hi; I have a fb that does PID it also implements a set point ramp function. What you are trying to do is reffered to as Ramp Soak control. It can be done but will require code external to the function block to change the setpoint and provide the new ramp times. Jim Share this post Link to post Share on other sites