martinav (Customer) asked a question.
I'm not quite following this. Ive watched a few videos, but they connect to an on/off device like a relay. I want to connec this to measure distance to an object. A bit different scenario. I assume I'm going to use the "W" block on my BX-DM1E-18ER3, but I'm not sure how it goes.
I see this diagram, but I'm not getting what is what.
Device is a DW-AD-509-M18-320.
Ok, I'm going to make a guess on this...
1 - Brown - 24VDC V+
4 - Black - WX0
2 - White - WY0 (Corrected)
2 - Blue - W1C -> 24VDC V-
Close???
Yes. If you're using the base unit with no additional analog inputs, you only have one analog input available. Normally you'd use one or the other analog outputs from the sensor. Decide whether you want current or voltage input and connect black or white to WX0. If you've got additional analog input cards, you could run both if you wanted.
@RBPLC (Customer) ,
Ok, I think I get it. However, does this not have two inputs? (WX0/WY0)? Or cannot both be used on a single block??
I really dont know which I want, current or voltage. I suppose whichever one was the most linear and the best sensitivity/resolution? It will need to measure a very small movement toward/away from the end.
+1 RBPLC
Since you have a choice, I would use the current input instead of the voltage. It generally is less susceptible to noise.
Regards,
Garry
Hi martinav,
Connect only the one analog input, not both. You will see that there is only one input, not two. WX0 is the input. WY0 is an analog output. Here is the wiring diagram for the current input.
https://cdn.automationdirect.com/static/specs/bxdm1e_18ar3.pdf
When you open Do-More Designer you can then specify the signal coming on the analog input pin.
I hope this helps you out.
Regards,
Garry
https://accautomation.ca/series/brx-do-more-plc/
@Garry (Customer) ,
I'm a very visual person, but I need it all on in one picture to get it all together. I'm looking for confirmation here.
Wow, Ive been doing component level electronics for years. I see so much new stuff in this world. I'm feeling really stupid right now, but does that "cylinder" around the sensor wires some sort of shield/DC Ground? My wire does not have a shield. Is this a concern for me?
Your help is so much appreciated. Sorry, I know I'm high maintenance. I'm a check twice (or three, or four), keep the magic smoke inside kinda person.
The "cylinder" is the shield and is shown grounded on one end only. Shielding may/may not be an issue depending on the environment. The use of the 4-20mA input as opposed to the voltage input will help mitigate potential noise issues. In general, 4-20mA is less susceptible to noise than voltage inputs.
Hi martinav,
Connect only the one analog input, not both. You will see that there is only one input, not two. WX0 is the input. WY0 is an analog output. Here is the wiring diagram for the current input.
When you open Do-More Designer you can then specify the signal coming on the analog input pin.
Regards,
Garry
https://accautomation.ca/series/brx-do-more-plc/