Looking for Pentair IntelliFlo VS communication pinout

[doug.hillmer]

I have an older model IntelliFlo VS pump (I think when they first came out).
It has a communications port on it for an rs485 connection. I am interested to know the pinout for that port.
It looks like this (crude text drawing, sorry):
_________
/ o \
| o o |
\ o /
\------/

So basically there are 4 pins oriented Left, Top, Right, Bottom, looking at the pump from the left side.
My question is, which pins do what. I have seen pictures of the cable that connects to them, but I am confused if the picture is the cable end connector or the pump side connector. They talk about pins 5 and 6 being D+ and D-.
From the pump side which pins are D+/D-? Is it:
Left = D+, Bottom = D-
Left = D-, Bottom = D+
Right = D+, Bottom = D-
Or some other combination?
And also what are the other two pins, are they +15V and GND, or some other values, or just NC (no connections)?

Thanks for any help.

 

[doug.hillmer]

Here is a better diagram of the connector, but I think it was the cable end. I want the orientation of looking at the Pump side. (so pin 6 = left, pin 7 = bottom.

 

[ajw22]

From https://www.royalswimmingpools.com/IntelliFloVS-Manual.pdf



Only the 2 wires are connected from the pump to automation although the connector has more pins.

 

[doug.hillmer]

Allen,

Thanks for your reply. If I am understanding this correctly, the diagram is showing the cable side of the connection, so at the pump side the rightmost pin is D- and the bottom pin is D+, am I getting that correctly?

 

[Jimrahbe]

Doug,

Tell us what it is you are trying to do???

Thanks,

Jim R.

 

[doug.hillmer]

Jim,
The ultimate goal is to communicate with the pump from a Raspberry Pi. I have a USB to rs485 adapter dongle. I do not currently have the official pentair cable, so I was going to create a prototype connection while I get things set up.

 

[ajw22]

You aware of...

Hacking the IntelliFlo protocol....

Greetings from the mountains in Colombia! entering 3 months of lockdown now, finally can get out of the house more than once a week. In the meantime, I've been developing an automation system for my rainwater system and pool chemistry. See pic I monitor pH, hardness, filter pressure (pool and...

www.troublefreepool.com

Intelliflow pump RS485 protocol

I have read threads in this forum that deal with the communication of the Pentair Intelliflo pump. Did anybody ever figure out how to do it and can tell me the baudrate, parity, stop bits and the protocol? I gathered from dbean's work it is a binary protocol with a checksum. My Intelliflow (it...

cocoontech.com

Pentair Automation Bus (RS-485) Protocol

docs.google.com

 

[doug.hillmer]

Allen,

Thanks for the pointers. I had browsed 2/3 of them before, but I am one step before needing most of that. I still want to know that I have correct connectivity to the pump before I start programming and/or just pulling down one of those projects. I suspect my set up is probably less then most of them right now (one valve for solar/nosolar and the VS pump speed control). Eventually I would like to add temp sensor and then maybe PH and Chlorine sensors.

 

[doug.hillmer]

I am not sure how kosher it is to reply to your own post, but I am doing it.
I finally got an actual Pentair cable to connect. Turns out my previous post was incorrect.
The pictures posted are actually of the pump side of the connector, NOT the cable side.
So yellow is the bottom pin, which is supposed to be D+ (this was correct).
The green is the leftmost connector on the pump side and is D- (this was where I was wrong).
I hope this helps anyone else who is researching this in the future.

I still have not gotten communication from my Pi to the pump, but I am one step closer.

 

[Katodude]

Easiest way to get your pi to talk to the pump is this code.

GitHub - tagyoureit/nodejs-poolController: An application to control pool equipment from various manufacturers.

An application to control pool equipment from various manufacturers. - tagyoureit/nodejs-poolController

github.com

I have been running it for about a year now.