Shift Register

[destination unknown 3]

I'm just wondering if anyone has implemented a floating point shift register?

[kaare_t 155]

Do you want to shift (right or left) a floating point value? Why?

[destination unknown 3]

Thanks for the reply, im trying to store several floating point numbers and access them at a later stage have a look at the attachment cheers. Any ideas welcome. Shift_Register.pdf

[Inntele 60]

Hi destination unknown, You talk about elementary FIFO. However, the concrete help will depend on your answers to the questions below: What type of PLC do you use (FX3, Q)? What software do you use (GX Developer, GX IEC Developer)? What is the real lenght of FIFO that you want to use?

[Inntele 60]

See the example for GX IEC Developer, FX3U/FX3G, FIFO of 4 floating point number lenght:

[destination unknown 3]

Thanks for your help, but im not sure if First in First Out will work its my first in last out?? FX2N PLC (possibly fx3) GX Developer 62

[destination unknown 3]

Thanks for taking the time but i have never used IEC Developer and im not sure how to translate that into GX Developer

[Inntele 60]

As you described you need in First In First Out. Therefore, you can use the same sequence of command. An example, in IL with pulse commands: LD M0 BMOVP D100 D102 K122 DMOVP D0 D100 DMOVP D122 D2 Edited 14 Jun 2010 by Inntele

[destination unknown 3]

So just to make i hace this right, that code will move D100 --> D102 and D102 --> D104 etc 61 times? Then move the input D0 into the starting position D100 and take the output D2 from the last position D122 ? Will that work with floating point numbers? Your help and time is much appreciated. Thank You.

[Inntele 60]

This sequence will work not only with 32-bit integer numbers, but with floating point numbers, because the values that stored in registers are not modified and will copied only.