I know what dry contact are, thanks. I'm just not confident the document is accurate.

Usually dry contacts are available as outputs, not inputs.
And optocouplers used for inputs. This is to electrically isolate the internal circuits of the device from external voltages.

We need to know this before moving forward, so we can properly interface the new circuit to the device.

Were you able to see the attachments of the chip itself? I tried googling some of the numbers to see if the blueprints were online but found no results. It also looks like the 6 inputs go directly to a resistor of some sorts labeled ZOZ or 202?

If you have a good reason for needing to know I can reach out to the manufacturer (Advantech). How would the input type change what circuit I need for this particular application?

 

I know what dry contact are, thanks. I'm just not confident the document is accurate.

Usually dry contacts are available as outputs, not inputs.
And optocouplers used for inputs. This is to electrically isolate the internal circuits of the device from external voltages.

We need to know this before moving forward, so we can properly interface the new circuit to the device.

This picture may help; it is an example from an Advantech Manual.

 

This picture may help; it is an example from an Advantech Manual.

View attachment 259295

Ok...so they mean a user supplied dry contact as an input to the device.

 

If you have a good reason for needing to know I can reach out to the manufacturer (Advantech). How would the input type change what circuit I need for this particular application?

I always have a good reason...we don't want to destroy your device.
Post #22 answered it.

 

I always have a good reason...we don't want to destroy your device.
Post #22 answered it.

I appreciate your concern for my device's well being.

 

Just looking at ready-made options before designing from scratch.

Have you considered using one of these for each of the inputs...

https://www.amazon.com/Bluejaye-IO25A01-Flip-Flop-Bistable-Self-locking/dp/B07587WC2S

or maybe this 4 channnel module:

https://www.amazon.com/dp/B098P7KWZB?psc=1

Use one of these to step the voltage down from 24v to 5v

https://www.amazon.com/dp/B098P7KWZB?psc=1

 

Just looking at ready-made options before designing from scratch.

Have you considered using one of these for each of the inputs...

https://www.amazon.com/Bluejaye-IO25A01-Flip-Flop-Bistable-Self-locking/dp/B07587WC2S

or maybe this 4 channnel module:

https://www.amazon.com/dp/B098P7KWZB?psc=1

Use one of these to step the voltage down from 24v to 5v

https://www.amazon.com/dp/B098P7KWZB?psc=1

Did you mean to link something else for the 24v to 5v? These solutions look promising and I am always a fan of something ready-made.

 

Did you mean to link something else for the 24v to 5v? These solutions look promising and I am always a fan of something ready-made.

Sorry...yes.

https://www.amazon.com/LM2596s-Converter-Step-down-Regulator-Stabilizer/dp/B07CVBG8CT

 

What is the source of the signals that confirm acknowledgement from the Server?

 

What is the source of the signals that confirm acknowledgement from the Server?

The WISE-S250 has a RESTful API available so any 3rd party application that has a POST handler can write a signal back to the device.

 

What is the source of the signals that confirm acknowledgement from the Server?

It looks like Amazon makes a relay that can run on 24 vdc.

https://www.amazon.com/gp/product/B08FLH3QS3/ref=ewc_pr_img_1?smid=A39SE0ZBRTHUOJ&psc=1

For $8 it doesn't make sense to make my own circuit so I guess this thread is solved/closed.