encoder input to analogue output

[mrbj]

Hi,
System
AB SLC 5/03.
1746 - HSCE Card for encoder 1024ppr encoder input.
1746 - N104V 2channel analogue input/output card.
Drive roller dia = 100mm (~4inch)
The machine drive roller pulls material through the machine at about 10m/min

I need to measure the speed of the machine via the encoder and send a 0-10V output to another drive card via the analogue output card.
I assume I will have to convert ppr to rpm and then to a value that the analogue card can use for the 0-10volt output.

I would appreciate any help / suggestions on how to achieve this using the above kit.

Regards,
mrbj

 

[Skogsgurra]

"convert ppr to rpm" isn't exactly the solution.

It is a lot simpler. There should be (I do not know the AB system) an instruction that handles the encoder input on the HSCE card and puts it into a variable. It would then be a very simple thing to output that variable to an analogue output on the N104V card.

Ask your PLC programmer to do it. He knows how to.

Gunnar Englund

http://www.gke.org

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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...

 

[milmat1]

The Encoder count can be converted to an integer or DP Integer then you can do the needed scaling etc. Before outputing that to the Analog out card.

Regards,
Matt