Improve support of two rs485 inputs at once and single output transport

[jaredmauch]

• Enable multiprocessing for inputs
• Fix influxdb data type issue where floating point values are sometimes written as integer

[HotNoob]

hmm... im confused by the "multiprocessing" thing...
ppg already does this sort of thing...

[jaredmauch]

It wouldn't read from two serial ports at once with the same eg4 config - willing to try other things

[HotNoob]

it's single threaded yes.
so it wouldn't read it concurrently, but it doesnt really need to.

read times are not included in the delays
https://github.com/HotNoob/PythonProtocolGateway/blob/86b7e6451da5e5522e4b2fd08ff018efbe807533/protocol_gateway.py#L188C1-L189C1

the main loop could be sped up a bit:

PythonProtocolGateway/protocol_gateway.py

Line 211 in 86b7e64

time.sleep(0.7) #change this in future. probably reduce to allow faster reads.

so yeah if the read time of one transport takes forever, it might interefer...

for improved performance, there is a variable timing feature that hasnt been implemented in the eg4_v58 protocol.
https://github.com/HotNoob/PythonProtocolGateway/blob/main/documentation/usage/creating_and_editing_protocols.md#read-interval

---

a quick alternative is simply running two or more instances of ppg though.

python3 -u protocol_gateway.py config.inverter1.cfg
python3 -u protocol_gateway.py config.inverter2.cfg

multithreading just adds... headaches...

[HotNoob]

like, the multithreading gets very problematic, if you have two or more devices on the same bus... since modbus or any bus is essentially just a single serial connection shared amoung devices. physically only 1 can send/recieve at a time... ie, monitoring batteries.

[HotNoob]

inc update to influxdb_out