Gx Works Soft start.

[HwT]

I have some questions about creating a soft start / ramp up function in Gx Works 2, does anybody have an example on how to do this? 16 bit value 0-250, and tunable time. Its for analoge value out. 

I would be grateful for any help with this.

[Luke.S]

Mitsubishi has an instruction specifically designed for ramping single word integers to soft start analogue outputs. Search for RAMP in the instructions section of the programming manual. It includes a constant to inc/decrease the rate.

If CPU you're using doesn't have it you can also do it by adding a constant to a device every scan until it gets within say 10% of the "SP", then switch to the device containing the target value. You can adjust it by making the constant bigger/smaller.

[HwT]

Hello Luke! 

I found the "ramp" function but i cant seem to get it to work, it should ramp from 0 - 100 in 10 scans. And i created a (Word Signed) D25. But i can't get it to compile. Just throws me the following error: 

[Luke.S]

The only thing I can think of is the output d should be an array of "ANY_16" with 2 elements. Make sure your output can use 2 words (the second one is just for processing I believe).

[kaare_t]

Your output (RampUp_Test) should be an array of two elements.