Jandy Pump Protocol

[guinness]

Can you set the speed and get pump status? Could you share the messages that you sent and received back?

 

[zafarpatel7]

the same cmds

I got from same thread

send motor the "set demand" command in Jandy format
10 02 78 44 00 10 00 27 05 10 03 - Jandy command
10 02 00 1F 44 00 10 27 00 AC 10 03 - Motor responds!!!

then
10 02 78 41 CB 10 03 - go command
10 02 00 01 41 00 54 10 03 - motor's response and motor starts!!!!

 

[guinness]

Do you have a Jandy VS FloPro with JEP-R controller? When you issue those commands what speed (RPM) does it show on the pump?

You could also send the following command to request status. Please post back the response so we can attempt to see what it contains.

10 02 78 43 CD 10 03

 

[zafarpatel7]

Now I don't have jandy VSP and Jandy Controller -- Now I am just evaluating theoretical VSP jandy how many VSPs I control

 

[guinness]

Can you send the command "10 02 78 43 CD 10 03" to your pump and let us know what the response is?

 

[zafarpatel7]

Can you send the command "10 02 78 43 CD 10 03" to your pump and let us know what the response is?

I don't have Pump Now

 

[zafarpatel7]

Yes guinness I don't have it now -- maybe I will get it next month,

But if you have any theoretical idea or any good web link - how Jandy controlling 16 VSPs How they have addressed logic

 

[Mutley]

Yes guinness I don't have it now -- maybe I will get it next month,

But if you have any theoretical idea or any good web link - how Jandy controlling 16 VSPs How they have addressed logic

Jandy protocol supports 4 VSP ID's, while Pentair protocol supports 16 ID's. Both Jandy and Pentair controllers can read / write each others protocols and for the most part the different protocols don't clash being on the same 485 bus. IE, a Pentair controller can control a Jandy Salt Water Generator. (In fact that's the default mode for Pentair). Some VSP's can also be set to use the different protocols, so you can set some Jandy VSP's to use the Pentair protocol.

• Pentair pump ID's
  • 0x60 to 0x6F (0x60, 0x61 0x62, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F)
• Jandy pump ID's
  • 0x78, 0x79, 0x7A, 0x7B

So for a Jandy controlling 16 VSP's, it could simply be using the Pentair protocol. Another way, Jandy also have some controllers that act as extension boards and a bridge that create a new RS485 bus, so the other way (in theory) could be 1 Jandy master controller and 3 Jandy slave controllers, creating 4 separate RS485 bus's that would give you ability to control 16 VSP's using the Jandy protocol. You'd have to be more specific on where you got that 16 number from to see what was going on.

Their are some ID's I've yet to decode on the Jandy protocol, (0x90 -> 0x93 & 0x98 -> 0x9b) so maybe some pumps could be address in those ranges, but I can't say I've seen any VSP documentation to support that.

 

[el duderino]

This discussion is for the most part completely over my head. However, I would love to be able to interface my Jandy e-controlled variable speed pump with njsPC.