interfacing an Arduino to a 24v PLC

hey,

iam currently working on my school end project and iam planning to use an arduino as an sensor for a plc. I will explain it more so i have an arduino with an finger print sensor and if it is an good finger it will send an singal to an plc thats what i want to do but the arduino works wit 5V singals and an plc with 24v singals has anyone already done this or has an sulation for my problem if it is even possible

thank you very much
for helping
grtz Gilles

Your title says "using an arduino as sensor" but I think what you are really looking for is advice about "interfacing an Arduino to a 24v PLC". If you edit your Original Post you can change the title.

And, sorry, I know nothing about PLCs.

...R

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