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Alde 3020 - Checksum error #33

@wheelbarrow1980

Description

@wheelbarrow1980

Hi, firstly I wanted to say this is awesome work and thank you!

I have installed the scripts and connected my pi to my Alde 3020 (connected to the boiler, not behind the panel.)

When running the truma_service I get two main errors:

inet.app ERROR Status buffer does not start with preamble, expected b'\x00\x1e\x00\x00"\xff\xff\xffT\x01', got b'\x00*\x00\x00"\xff\xff\xffT\x01'

AND then:

2023-01-20 13:06:49,745 inet.protocol INFO Responding to 08 message (updates_to_send={})!
2023-01-20 13:06:49,866 inet.lin WARNING → → checksum error: Checksum error (received 3c, calculated aa)
2023-01-20 13:06:49,926 inet.lin WARNING → → checksum error: Checksum error (received 55, calculated 00)
2023-01-20 13:06:52,522 inet.protocol INFO Received read by identifier request.
2023-01-20 13:06:52,812 inet.protocol INFO Responding to 08 message (updates_to_send={})!
2023-01-20 13:06:52,932 inet.lin WARNING → → checksum error: Checksum error (received 03, calculated aa)
2023-01-20 13:06:53,173 inet.protocol INFO Responding to 08 message (updates_to_send={})!
2023-01-20 13:06:54,636 inet.lin WARNING → → checksum error: Checksum error (received 03, calculated aa)
2023-01-20 13:06:54,877 inet.protocol INFO Responding to 08 message (updates_to_send={})!
2023-01-20 13:06:55,177 inet.protocol INFO Responding to 08 message (updates_to_send={})!
2023-01-20 13:06:55,297 inet.lin WARNING → → checksum error: Checksum error (received 03, calculated aa)
2023-01-20 13:07:05,569 inet.lin WARNING → → checksum error: Checksum error (received 03, calculated aa)
2023-01-20 13:07:06,721 inet.lin WARNING → → checksum error: Checksum error (received 3c, calculated aa)
2023-01-20 13:07:06,782 inet.lin WARNING → → checksum error: Checksum error (received 03, calculated aa)
2023-01-20 13:07:16,652 inet.lin WARNING → → checksum error: Checksum error (received 03, calculated aa)
2023-01-20 13:07:16,983 inet.lin WARNING → → checksum error: Checksum error (received 3c, calculated aa)
2023-01-20 13:07:17,043 inet.lin WARNING → → checksum error: Checksum error (received 03, calculated aa

I also see an error on the control panel:

"iNet Connecton Fail"

Does the 3020 use slightly different serial comms to the 3010 or did I miss something?

Happy to help with testing and debugging comms if needed...

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