High speed up counter

[jwbaker3]

There are 3 high speed up counter functions built into the PLC (BX-DM1E-36ER3) can I add another one? I need 4 if possible.

Thanks,
JW

[franji1]

BX-HSIO-x expansion modules.
https://automationdirect.com/pn/doc/spec/BX-HSIO-1 (and -2)
https://automationdirect.com/pn/doc/spec/BX-HSIO-4

[jwbaker3]

I was hoping to be able to add it to the main PLC. I already looked at the HSIO but I can't add another card to the rack. I'll have to add another CPU for the card.

Thanks for the quick answer!
JW

[BobO]

I was hoping to be able to add it to the main PLC. I already looked at the HSIO but I can't add another card to the rack. I'll have to add another CPU for the card.

Thanks for the quick answer!
JW

They are physical things implemented in FPGA logic. Can't be added.

How fast do you need the counter to count?

[Garyhlucas]

I got a faster 4th counter using the interupt routine Its used in every waste treatment plant we built to count flow meters.

[BobO]

I got a faster 4th counter using the interupt routine Its used in every waste treatment plant we built to count flow meters.

This is what I was about to recommend, if his speed requirement isn't too high.

[jwbaker3]

The rate is ~7,500 counts per second. A standard counter misses about 75% of the count. The interrupt is a good idea, I'll look and see if I can get it working.

Thanks,
JW