Cheapest way to add a ADC to MPU11/GPIO4D

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tblough
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Cheapest way to add a ADC to MPU11/GPIO4D

Post by tblough »

I need a single 0-10V(or 0-20ma) analog input for spindle load monitoring on my MPU11/GPIO4D lathe. What is the least expensive way to add this?
Cheers,

Tom
Confidence is the feeling you have before you fully understand the situation.
I have CDO. It's like OCD, but the letters are where they should be.
Centroid_Tech
Posts: 286
Joined: Thu Mar 18, 2010 2:24 pm

Re: Cheapest way to add a ADC to MPU11/GPIO4D

Post by Centroid_Tech »

There aren't any analog inputs on the GPIO4D so with a GPIO4D system, an add-on board, ADD4AD4DA, is required in order to connect an analog input into the system. The PLC program will also need to be modified. The attached tech bulletin should help you out with customizing your PLC program.
Attachments
296 Spindle Load Meter.pdf
(119.81 KiB) Downloaded 220 times
When requesting support, please ALWAYS post a current report. Find out how to take a report from your Acorn, CNC11 or CNC10 system here: https://www.youtube.com/watch?v=Ecvg0VJp1oQ.

If your question is PLC, Macro or program related, please also post a copy of the program or macro as well.

Without the above information we may not be able to help and/or reply until the required information is posted..
tblough
Posts: 3072
Joined: Tue Mar 22, 2016 10:03 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: Yes
CNC Control System Serial Number: 100505
100327
102696
103432
7804732B977B-0624192192
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Boston, MA
Contact:

Re: Cheapest way to add a ADC to MPU11/GPIO4D

Post by tblough »

I knew about the ADD4 board, but I was hoping for a little less expensive solution since I only needed one input. Are the PLC Expansion ports and communication protocol on the GPIO4D documented anywhere so I can create my own analog input board?
Cheers,

Tom
Confidence is the feeling you have before you fully understand the situation.
I have CDO. It's like OCD, but the letters are where they should be.
diycncscott

Re: Cheapest way to add a ADC to MPU11/GPIO4D

Post by diycncscott »

The least expensive method of adding an analog input would be through a OpticDirect PN12554 $450.00 Unfortunately, the protocol information is proprietary and not available for distribution.
tblough
Posts: 3072
Joined: Tue Mar 22, 2016 10:03 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: Yes
CNC Control System Serial Number: 100505
100327
102696
103432
7804732B977B-0624192192
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Boston, MA
Contact:

Re: Cheapest way to add a ADC to MPU11/GPIO4D

Post by tblough »

Thanks, Scott. That's still a little steep considering a spindle load meter is a "nice to have" and not "need to have".
Cheers,

Tom
Confidence is the feeling you have before you fully understand the situation.
I have CDO. It's like OCD, but the letters are where they should be.
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