Comments (4)
just checked on our 3xH34A15
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I know the SolaX doc doesn't mention anything about termination resistors. But have you tried adding them?
Have you tried the Bus conflict option mentioned #804 (comment) also the Multi-Host setting could help to remove the spikes.
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Thx wills106 for interesting hints. I do not have resistors either Mulit-host settings. I am going to test it gradualy.
To be sure: I am physicaly connected ( 2 wires without GND) with Waveshare ONLY to Master and ALL data is coming from Master(?). So Master Invertor is containing (collect) data also for Slave via Solax "internal Modbus CAN2-CAN1" or Waveshare is communicating also with Slave directly via Modbus and data integration is inside HA Solax Modbus Integration? In the other words who is integrator? Master internaly or Solax Invertor Modbus Integration?
@a1bert01 are you going to test it too?
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Continuation and results:
- step: completed - no success
- step: used 120 Ohm resistor and terminate Modbus on the Waveshare only - no success
- step: used 120 Ohm resistor and terminate Modbus on the Waveshare and Invertor Slave port COM - no success
When You look to graph it doesnt look like random spike problem on the electric level. During night is long state of the peek uninterupted. It seems like coincident with PV activity or charging battery generally. Any idea pls?
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