AqualinkD Can two RS485 USB interfaces be used with AqualinkD?

Can two RS485 USB interfaces be used with AqualinkD?

Open ncpe20012003 opened this issue 4 years ago • 22 comments

Seems the app is looking for ttyUSB0, can a ttyUSB1 be added as well as a second RS485 interface? One for pump and one for heater.

Feb 06 '20 23:02 ncpe20012003

No, only one USB is supported. aqualinkd does not talk directly to pump or heater, only to control panel.

Feb 07 '20 18:02 sfeakes

The newer Jandy equipment have RS485 onboard. Seems like AqualinkD should be able to utilize it instead of panel.

On Fri, Feb 7, 2020, 1:02 PM sfeakes [email protected] wrote:

No, only one USB is supported. aqualinkd does not talk directly to pump or heater, only to control panel.

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Feb 07 '20 23:02 ncpe20012003

That's not the way the RS485 protocol works. There can only be one master on a RS485 network, and that's the control panel. There are many slaves, and Aqualinkd is simply a slave, all your other devices (pumps, heaters, SWG etc) should also be slaves. AqualinkD will read what the control panel sends to all devices and also what they send back, but can only control devices through the control panel. If AqualinkD was to control the pump directly, then you'd have to disconnect the control panel. But even if that was the case, you'd still only need one RS485 interface for AqualinkD, as you daisy-chain devices together.

Feb 07 '20 23:02 sfeakes

ncpe, I am curious, do you have a specific reason you wish to avoid using the same RS485 bus? Sean has created a great program that gives you great control over an existing Aqualink system as more or less a very advanced control station on the system, but the Aqualink card in your pool automation center remains in place to drive the physical devices and give you redundancy and local control. Since the Aqualink card is designed to control pumps and heaters it is a good architecture. That said I can realize there are specifics that might make a second bus a good choice but it would not be typical.

Feb 08 '20 16:02 john1158way

Im not sure I follow you. (BTW, I'm probably the Sean/Shaun you refer to, author of AqualinkD and AquapreD). I'm not avoiding using the same bus, I'm saying use the same bus, that's why you only need one USB2RS485 adapter on AqualinkD. You can use /dev/ttyUSB? (? = 0, 1, 2, 3 etc), but only ONE USB2RS485 interface is supported to force you to use the same bus. Once you're physically connected to the RS485 bus, you can control / communicate with everything else on that bus, that's why you only need one physical connection. The only reason I can see to have two physical connections would be if you need to connect to two separate RS485 bus's. Or you want two separate pieces of software running at the same time communicating with the RS485 bus. But one piece of software should never need to two physical connections to the same RS485 bus.

Can you link to this architecture you refer to, that may help me understand what you mean.

Feb 08 '20 18:02 sfeakes

New pool just installed. I have Jandy JXi Heater and a Jandy VersaFlo Variable Speed pump. On the pump, the contractor installed an IQPUMP01 Jandy Pro Series VS Mobile Pump Interface via the RS485 interface on the pump. I'm using the iAqualink App on my phone to control. Nothing is connected to my JXi heater. My thoughts were to connect the new RS485 USB interface from my RPi, running AqualinkD, directly to the RS485 interface on the heater for remote control. Eventually I may want to add the pump onto the control of AqualinkD on the RPi. Sounds like I need to create a RS485 bus for all three to be connected. In the meantime, can I not connect directly to my heater and run slave to slave via RS485?

On Sat, Feb 8, 2020 at 11:42 AM John [email protected] wrote:

ncpe, I am curious, do you have a specific reason you wish to avoid using the same RS485 bus? Sean has created a great program that gives you great control over an existing Aqualink system as more or less a very advanced control station on the system, but the Aqualink card in your pool automation center remains in place to drive the physical devices and give you redundancy and local control. Since the Aqualink card is designed to control pumps and heaters it is a good architecture. That said I can realize there are specifics that might make a second bus a good choice but it would not be typical.

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Feb 08 '20 19:02 ncpe20012003

Now I see where you are coming from. ALL devices should be connected to one RS485 bus, then on that bus you have one master (control panel), and all devices are slaves (pump, heater, SWG etc). Since you don't have a control panel, your installer simply installed IQPUMP01, I believe this will just control the pump and nothing else (well one other device via a relay). So no, AqualinkD will not control the heater directly, in your setup it can't even control the pump. You're kind-a stuck for upgrading as well as far as home automation or remote control goes as well. A Jandy control panel is designed to communicate with all RS485 devices, control valves, lights, manual pumps, cleaners etc etc. AqualinkD needs a control panel to communicate with, so you'd have to throw away the IQPUMP01 and add a Jandy control panel, then you could control everything remotely, either with iAqualink and/or AqualinkD.

Other option you have is find a Jandy home automation project that's designed to replace a Jandy control panel completely. But still have to throw away IQPUMP01. I don't know of any projects out there that can do that. AquapureD is a start of that, but it's not even close to being a finished project or able to control everything. And the way my spare time is at the moment, that will be a few years off, unless my control panel breaks and I'm forced to spend time on that project.

Feb 08 '20 20:02 sfeakes

Okay, I broke down and purchased a Jandy RS 8 P&S on ebay with Rev Q PCB. I'm able to communicate to it via AqualinkD/Raspberry Pi/RS485. I can enable/disable buttons via Web UI. I have connected my new Jandy JXi gas heater to it via RS485. Running the seriallogger with AqualinkD shutdown, the heater ID on the RS485 bus is 0x68, unknown. RS control panel is not recognizing it. Any ideas?

On Sat, Feb 8, 2020 at 3:00 PM sfeakes [email protected] wrote:

Now I see where you are coming from. ALL devices should be connected to one RS485 bus, then on that bus you have one master (control panel), and all devices are slaves (pump, heater, SWG etc). Since you don't have a control panel, your installer simply installed IQPUMP01, I believe this will just control the pump and nothing else (well one other device via a relay). So no, AqualinkD will not control the heater directly, in your setup it can't even control the pump. You're kind-a stuck for upgrading as well as far as home automation or remote control goes as well. A Jandy control panel is designed to communicate with all RS485 devices, control valves, lights, manual pumps, cleaners etc etc. AqualinkD needs a control panel to communicate with, so you'd have to throw away the IQPUMP01 and add a Jandy control panel, then you could control everything remotely, either with iAqualink and/or AqualinkD.

Other option you have is find a Jandy home automation project that's designed to replace a Jandy control panel completely. But still have to throw away IQPUMP01. I don't know of any projects out there that can do that. AquapureD is a start of that, but it's not even close to being a finished project or able to control everything. And the way my spare time is at the moment, that will be a few years off, unless my control panel breaks and I'm forced to spend time on that project.

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Feb 23 '20 18:02 ncpe20012003

When installed correctly, your iAqualink interface should be able to talk directly to the RS8, so you should be able to tell if everything is ok without aqualinkd at all. If you can give me the output of serial logger in debug mode, I can tell what’s active on the bus. But my guess is the RS8 hasn’t taken control / active on the bus.

Feb 24 '20 01:02 sfeakes

See attached, 0x68 is the heater.

On Sun, Feb 23, 2020 at 8:03 PM sfeakes [email protected] wrote:

When installed correctly, your iAqualink interface should be able to talk directly to the RS8, so you should be able to tell if everything is ok without aqualinkd at all. If you can give me the output of serial logger in debug mode, I can tell what’s active on the bus. But my guess is the RS8 hasn’t taken control / active on the bus.

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choyle@AquaLink:~/software/AqualinkD $ sudo ./release/serial_logger /dev/ttyUSB0 -d AqualinkD serial_logger V1.1 Notice: Logging serial information!