handle local echo with serialserver not working? #2414

jorisplusplus · 2024-10-25T13:52:03Z

jorisplusplus
Oct 25, 2024

I'm not sure if this is a bug or if I'm doing something wrong.
I'm using the SerialServer to simulate a solar inverter. This is done with a rs485 serial adapter with local echo connected to our device under test. I'm experiencing that with certain requests the server stops responding to requests.

I noticed that even though I have set handle_local_echo to True in the debug logs no mention of 'recv skipping (local_echo)' is found. See logs below, this is a log where also the communication breaks.

pymodbus 3.7.4 logs

2024-10-25 15:24:12,676,676 DEBUG    [transport.py:322] recv: 0x1 0x3 0x2 0x22 0x0 0x2 0x65 0xb9 old_data:  addr=None
2024-10-25 15:24:12,676,676 DEBUG    [async_io.py:123] Handling data: 0x1 0x3 0x2 0x22 0x0 0x2 0x65 0xb9
2024-10-25 15:24:12,676,676 DEBUG    [base.py:92] Processing: 0x1 0x3 0x2 0x22 0x0 0x2 0x65 0xb9
2024-10-25 15:24:12,676,676 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:24:12,676,676 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:24:12,676,676 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (546,2)
2024-10-25 15:24:12,677,677 DEBUG    [context.py:131] validate: fc-[3] address-546: count-2
2024-10-25 15:24:12,677,677 DEBUG    [context.py:144] getValues: fc-[3] address-546: count-2
2024-10-25 15:24:12,677,677 DEBUG    [transport.py:379] send: 0x1 0x3 0x4 0x0 0x0 0x5b 0xbe 0x41 0x73
2024-10-25 15:24:12,692,692 DEBUG    [transport.py:322] recv: 0x1 0x3 0x4 0x0 0x0 0x5b 0xbe 0x41 0x73 old_data:  addr=None
2024-10-25 15:24:12,692,692 DEBUG    [async_io.py:123] Handling data: 0x1 0x3 0x4 0x0 0x0 0x5b 0xbe 0x41 0x73
2024-10-25 15:24:12,692,692 DEBUG    [base.py:92] Processing: 0x1 0x3 0x4 0x0 0x0 0x5b 0xbe 0x41 0x73
2024-10-25 15:24:12,692,692 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,692,692 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,692,692 DEBUG    [rtu.py:105] Short frame: 0x1 0x3 0x4 0x0 0x0 0x5b 0xbe 0x41 0x73 wait for more data
2024-10-25 15:24:12,692,692 DEBUG    [base.py:92] Processing: 0xbe 0x41 0x73
2024-10-25 15:24:12,693,693 DEBUG    [rtu.py:105] Short frame: 0xbe 0x41 0x73 wait for more data
2024-10-25 15:24:12,712,712 DEBUG    [transport.py:322] recv: 0x1 0x3 0x3 0x10 0x0 0x2 0xc5 0x8a old_data:  addr=None
2024-10-25 15:24:12,713,713 DEBUG    [async_io.py:123] Handling data: 0xbe 0x41 0x73 0x1 0x3 0x3 0x10 0x0 0x2 0xc5 0x8a
2024-10-25 15:24:12,713,713 DEBUG    [base.py:92] Processing: 0xbe 0x41 0x73 0x1 0x3 0x3 0x10 0x0 0x2 0xc5 0x8a
2024-10-25 15:24:12,713,713 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,713,713 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:24:12,713,713 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:24:12,713,713 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (784,2)
2024-10-25 15:24:12,713,713 DEBUG    [context.py:131] validate: fc-[3] address-784: count-2
2024-10-25 15:24:12,713,713 DEBUG    [context.py:144] getValues: fc-[3] address-784: count-2
2024-10-25 15:24:12,713,713 DEBUG    [transport.py:379] send: 0x1 0x3 0x4 0x0 0x0 0x0 0x1 0x3b 0xf3
2024-10-25 15:24:12,727,727 DEBUG    [transport.py:322] recv: 0x1 0x3 0x4 0x0 0x0 0x0 old_data:  addr=None
2024-10-25 15:24:12,728,728 DEBUG    [async_io.py:123] Handling data: 0x1 0x3 0x4 0x0 0x0 0x0
2024-10-25 15:24:12,728,728 DEBUG    [base.py:92] Processing: 0x1 0x3 0x4 0x0 0x0 0x0
2024-10-25 15:24:12,728,728 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:24:12,740,740 DEBUG    [transport.py:322] recv: 0x1 0x3b 0xf3 old_data:  addr=None
2024-10-25 15:24:12,740,740 DEBUG    [async_io.py:123] Handling data: 0x1 0x3 0x4 0x0 0x0 0x0 0x1 0x3b 0xf3
2024-10-25 15:24:12,740,740 DEBUG    [base.py:92] Processing: 0x1 0x3 0x4 0x0 0x0 0x0 0x1 0x3b 0xf3
2024-10-25 15:24:12,740,740 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,740,740 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,740,740 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:24:12,740,740 DEBUG    [base.py:92] Processing: 0x0 0x1 0x3b 0xf3
2024-10-25 15:24:12,740,740 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:24:12,756,756 DEBUG    [transport.py:322] recv: 0x1 0x3 0x2 0x22 0x0 0x2 0x65 0xb9 old_data:  addr=None
2024-10-25 15:24:12,756,756 DEBUG    [async_io.py:123] Handling data: 0x0 0x1 0x3b 0xf3 0x1 0x3 0x2 0x22 0x0 0x2 0x65 0xb9
2024-10-25 15:24:12,756,756 DEBUG    [base.py:92] Processing: 0x0 0x1 0x3b 0xf3 0x1 0x3 0x2 0x22 0x0 0x2 0x65 0xb9
2024-10-25 15:24:12,756,756 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,756,756 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,756,756 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:24:12,756,756 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:24:12,756,756 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (546,2)
2024-10-25 15:24:12,756,756 DEBUG    [context.py:131] validate: fc-[3] address-546: count-2
2024-10-25 15:24:12,756,756 DEBUG    [context.py:144] getValues: fc-[3] address-546: count-2
2024-10-25 15:24:12,756,756 DEBUG    [transport.py:379] send: 0x1 0x3 0x4 0x0 0x0 0x5b 0xbe 0x41 0x73
2024-10-25 15:24:12,778,778 DEBUG    [transport.py:322] recv: 0x1 0x3 0x4 0x0 0x0 0x5b 0xbe 0x41 0x73 old_data:  addr=None
2024-10-25 15:24:12,778,778 DEBUG    [async_io.py:123] Handling data: 0x1 0x3 0x4 0x0 0x0 0x5b 0xbe 0x41 0x73
2024-10-25 15:24:12,778,778 DEBUG    [base.py:92] Processing: 0x1 0x3 0x4 0x0 0x0 0x5b 0xbe 0x41 0x73
2024-10-25 15:24:12,778,778 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,778,778 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,778,778 DEBUG    [rtu.py:105] Short frame: 0x1 0x3 0x4 0x0 0x0 0x5b 0xbe 0x41 0x73 wait for more data
2024-10-25 15:24:12,778,778 DEBUG    [base.py:92] Processing: 0xbe 0x41 0x73
2024-10-25 15:24:12,778,778 DEBUG    [rtu.py:105] Short frame: 0xbe 0x41 0x73 wait for more data
2024-10-25 15:24:12,788,788 DEBUG    [transport.py:322] recv: 0x1 0x3 0x2 old_data:  addr=None
2024-10-25 15:24:12,788,788 DEBUG    [async_io.py:123] Handling data: 0xbe 0x41 0x73 0x1 0x3 0x2
2024-10-25 15:24:12,789,789 DEBUG    [base.py:92] Processing: 0xbe 0x41 0x73 0x1 0x3 0x2
2024-10-25 15:24:12,789,789 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:24:12,789,789 DEBUG    [base.py:92] Processing: 0x73 0x1 0x3 0x2
2024-10-25 15:24:12,789,789 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:24:12,804,804 DEBUG    [transport.py:322] recv: 0x33 0x0 0x1 0x75 0xbd old_data:  addr=None
2024-10-25 15:24:12,804,804 DEBUG    [async_io.py:123] Handling data: 0x73 0x1 0x3 0x2 0x33 0x0 0x1 0x75 0xbd
2024-10-25 15:24:12,804,804 DEBUG    [base.py:92] Processing: 0x73 0x1 0x3 0x2 0x33 0x0 0x1 0x75 0xbd
2024-10-25 15:24:12,804,804 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,804,804 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:24:12,804,804 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:24:12,804,804 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (563,1)
2024-10-25 15:24:12,805,805 DEBUG    [context.py:131] validate: fc-[3] address-563: count-1
2024-10-25 15:24:12,805,805 DEBUG    [context.py:144] getValues: fc-[3] address-563: count-1
2024-10-25 15:24:12,805,805 DEBUG    [transport.py:379] send: 0x1 0x3 0x2 0x0 0x0 0xb8 0x44
2024-10-25 15:24:12,820,820 DEBUG    [transport.py:322] recv: 0x1 0x3 0x2 0x0 0x0 0xb8 0x44 old_data:  addr=None
2024-10-25 15:24:12,820,820 DEBUG    [async_io.py:123] Handling data: 0x1 0x3 0x2 0x0 0x0 0xb8 0x44
2024-10-25 15:24:12,820,820 DEBUG    [base.py:92] Processing: 0x1 0x3 0x2 0x0 0x0 0xb8 0x44
2024-10-25 15:24:12,820,820 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:24:12,836,836 DEBUG    [transport.py:322] recv: 0x1 old_data:  addr=None
2024-10-25 15:24:12,836,836 DEBUG    [async_io.py:123] Handling data: 0x1 0x3 0x2 0x0 0x0 0xb8 0x44 0x1
2024-10-25 15:24:12,836,836 DEBUG    [base.py:92] Processing: 0x1 0x3 0x2 0x0 0x0 0xb8 0x44 0x1
2024-10-25 15:24:12,836,836 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,836,836 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:24:12,836,836 DEBUG    [base.py:92] Processing: 0x3 0x2 0x0 0x0 0xb8 0x44 0x1
2024-10-25 15:24:12,836,836 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:24:12,852,852 DEBUG    [transport.py:322] recv: 0x3 0x3 0xa 0x0 0x1 0xa4 0x4c old_data:  addr=None
2024-10-25 15:24:12,852,852 DEBUG    [async_io.py:123] Handling data: 0x3 0x2 0x0 0x0 0xb8 0x44 0x1 0x3 0x3 0xa 0x0 0x1 0xa4 0x4c
2024-10-25 15:24:12,852,852 DEBUG    [base.py:92] Processing: 0x3 0x2 0x0 0x0 0xb8 0x44 0x1 0x3 0x3 0xa 0x0 0x1 0xa4 0x4c
2024-10-25 15:24:12,852,852 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,852,852 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,852,852 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:24:12,852,852 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:24:12,852,852 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (778,1)
2024-10-25 15:24:12,852,852 DEBUG    [context.py:131] validate: fc-[3] address-778: count-1
2024-10-25 15:24:12,853,853 DEBUG    [context.py:144] getValues: fc-[3] address-778: count-1
2024-10-25 15:24:12,853,853 DEBUG    [transport.py:379] send: 0x1 0x3 0x2 0x13 0x88 0xb5 0x12
2024-10-25 15:24:12,868,868 DEBUG    [transport.py:322] recv: 0x1 0x3 0x2 0x13 0x88 0xb5 0x12 old_data:  addr=None
2024-10-25 15:24:12,868,868 DEBUG    [async_io.py:123] Handling data: 0x1 0x3 0x2 0x13 0x88 0xb5 0x12
2024-10-25 15:24:12,868,868 DEBUG    [base.py:92] Processing: 0x1 0x3 0x2 0x13 0x88 0xb5 0x12
2024-10-25 15:24:12,868,868 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:24:12,900,900 DEBUG    [transport.py:322] recv: 0x1 0x3 0x3 0xf 0x0 0x1 0xb4 0x4d old_data:  addr=None
2024-10-25 15:24:12,900,900 DEBUG    [async_io.py:123] Handling data: 0x1 0x3 0x2 0x13 0x88 0xb5 0x12 0x1 0x3 0x3 0xf 0x0 0x1 0xb4 0x4d
2024-10-25 15:24:12,900,900 DEBUG    [base.py:92] Processing: 0x1 0x3 0x2 0x13 0x88 0xb5 0x12 0x1 0x3 0x3 0xf 0x0 0x1 0xb4 0x4d
2024-10-25 15:24:12,900,900 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,900,900 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,900,900 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,900,900 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,900,900 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:24:12,900,900 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:24:12,900,900 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (783,1)
2024-10-25 15:24:12,900,900 DEBUG    [context.py:131] validate: fc-[3] address-783: count-1
2024-10-25 15:24:12,900,900 DEBUG    [context.py:144] getValues: fc-[3] address-783: count-1
2024-10-25 15:24:12,901,901 DEBUG    [transport.py:379] send: 0x1 0x3 0x2 0x1 0xc7 0xf8 0x46
2024-10-25 15:24:12,916,916 DEBUG    [transport.py:322] recv: 0x1 0x3 0x2 0x1 0xc7 0xf8 0x46 old_data:  addr=None
2024-10-25 15:24:12,916,916 DEBUG    [async_io.py:123] Handling data: 0x1 0x3 0x2 0x1 0xc7 0xf8 0x46
2024-10-25 15:24:12,916,916 DEBUG    [base.py:92] Processing: 0x1 0x3 0x2 0x1 0xc7 0xf8 0x46
2024-10-25 15:24:12,916,916 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:24:12,952,952 DEBUG    [transport.py:322] recv: 0x1 0x3 0x3 0x4 0x0 0x1 0xc5 0x8f old_data:  addr=None
2024-10-25 15:24:12,953,953 DEBUG    [async_io.py:123] Handling data: 0x1 0x3 0x2 0x1 0xc7 0xf8 0x46 0x1 0x3 0x3 0x4 0x0 0x1 0xc5 0x8f
2024-10-25 15:24:12,953,953 DEBUG    [base.py:92] Processing: 0x1 0x3 0x2 0x1 0xc7 0xf8 0x46 0x1 0x3 0x3 0x4 0x0 0x1 0xc5 0x8f
2024-10-25 15:24:12,953,953 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,953,953 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,953,953 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,953,953 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,953,953 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:24:12,953,953 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:24:12,953,953 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (772,1)
2024-10-25 15:24:12,953,953 DEBUG    [context.py:131] validate: fc-[3] address-772: count-1
2024-10-25 15:24:12,953,953 DEBUG    [context.py:144] getValues: fc-[3] address-772: count-1
2024-10-25 15:24:12,954,954 DEBUG    [transport.py:379] send: 0x1 0x3 0x2 0x9 0x23 0xff 0xcd
2024-10-25 15:24:12,964,964 DEBUG    [transport.py:322] recv: 0x1 0x3 0x2 0x9 old_data:  addr=None
2024-10-25 15:24:12,964,964 DEBUG    [async_io.py:123] Handling data: 0x1 0x3 0x2 0x9
2024-10-25 15:24:12,964,964 DEBUG    [base.py:92] Processing: 0x1 0x3 0x2 0x9
2024-10-25 15:24:12,964,964 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:24:12,979,979 DEBUG    [transport.py:322] recv: 0x23 0xff 0xcd old_data:  addr=None
2024-10-25 15:24:12,980,980 DEBUG    [async_io.py:123] Handling data: 0x1 0x3 0x2 0x9 0x23 0xff 0xcd
2024-10-25 15:24:12,980,980 DEBUG    [base.py:92] Processing: 0x1 0x3 0x2 0x9 0x23 0xff 0xcd
2024-10-25 15:24:12,980,980 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:24:12,996,996 DEBUG    [transport.py:322] recv: 0x1 0x3 0x3 0x7 0x0 0x1 0x35 0x8f old_data:  addr=None
2024-10-25 15:24:12,996,996 DEBUG    [async_io.py:123] Handling data: 0x1 0x3 0x2 0x9 0x23 0xff 0xcd 0x1 0x3 0x3 0x7 0x0 0x1 0x35 0x8f
2024-10-25 15:24:12,996,996 DEBUG    [base.py:92] Processing: 0x1 0x3 0x2 0x9 0x23 0xff 0xcd 0x1 0x3 0x3 0x7 0x0 0x1 0x35 0x8f
2024-10-25 15:24:12,996,996 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,996,996 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,996,996 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:12,996,996 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:24:12,996,996 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:24:12,996,996 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (775,1)
2024-10-25 15:24:12,996,996 DEBUG    [context.py:131] validate: fc-[3] address-775: count-1
2024-10-25 15:24:12,996,996 DEBUG    [context.py:144] getValues: fc-[3] address-775: count-1
2024-10-25 15:24:12,996,996 DEBUG    [transport.py:379] send: 0x1 0x3 0x2 0x0 0x17 0xf8 0x4a
2024-10-25 15:24:13,012,012 DEBUG    [transport.py:322] recv: 0x1 0x3 0x2 0x0 0x17 0xf8 0x4a old_data:  addr=None
2024-10-25 15:24:13,012,012 DEBUG    [async_io.py:123] Handling data: 0x1 0x3 0x2 0x0 0x17 0xf8 0x4a
2024-10-25 15:24:13,012,012 DEBUG    [base.py:92] Processing: 0x1 0x3 0x2 0x0 0x17 0xf8 0x4a
2024-10-25 15:24:13,012,012 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:24:13,028,028 DEBUG    [transport.py:322] recv: 0x1 0x3 0x3 old_data:  addr=None
2024-10-25 15:24:13,028,028 DEBUG    [async_io.py:123] Handling data: 0x1 0x3 0x2 0x0 0x17 0xf8 0x4a 0x1 0x3 0x3
2024-10-25 15:24:13,028,028 DEBUG    [base.py:92] Processing: 0x1 0x3 0x2 0x0 0x17 0xf8 0x4a 0x1 0x3 0x3
2024-10-25 15:24:13,028,028 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:13,028,028 DEBUG    [rtu.py:121] Frame check failed, ignoring!!
2024-10-25 15:24:13,028,028 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:24:13,028,028 DEBUG    [base.py:92] Processing: 0x0 0x17 0xf8 0x4a 0x1 0x3 0x3
2024-10-25 15:24:13,028,028 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:24:13,044,044 DEBUG    [transport.py:322] recv: 0x0 0x0 0x1 0x84 0x4e old_data:  addr=None
2024-10-25 15:24:13,044,044 DEBUG    [async_io.py:123] Handling data: 0x0 0x17 0xf8 0x4a 0x1 0x3 0x3 0x0 0x0 0x1 0x84 0x4e
2024-10-25 15:24:13,044,044 DEBUG    [base.py:92] Processing: 0x0 0x17 0xf8 0x4a 0x1 0x3 0x3 0x0 0x0 0x1 0x84 0x4e
2024-10-25 15:24:13,044,044 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:24:13,316,316 INFO     [plc_simulator.py:423] Received sunspec
2024-10-25 15:24:14,382,382 INFO     [plc_simulator.py:423] Received sunspec
2024-10-25 15:24:15,450,450 INFO     [plc_simulator.py:423] Received sunspec
2024-10-25 15:24:16,520,520 INFO     [plc_simulator.py:423] Received sunspec
2024-10-25 15:24:17,583,583 INFO     [plc_simulator.py:423] Received sunspec
2024-10-25 15:24:17,811,811 DEBUG    [transport.py:322] recv: 0x1 0x3 0x2 0x22 0x0 0x2 0x65 0xb9 old_data:  addr=None
2024-10-25 15:24:17,812,812 DEBUG    [async_io.py:123] Handling data: 0x0 0x17 0xf8 0x4a 0x1 0x3 0x3 0x0 0x0 0x1 0x84 0x4e 0x1 0x3 0x2 0x22 0x0 0x2 0x65 0xb9
2024-10-25 15:24:17,812,812 DEBUG    [base.py:92] Processing: 0x0 0x17 0xf8 0x4a 0x1 0x3 0x3 0x0 0x0 0x1 0x84 0x4e 0x1 0x3 0x2 0x22 0x0 0x2 0x65 0xb9
2024-10-25 15:24:17,812,812 DEBUG    [rtu.py:115] Frame - not ready

Now I have modified pymodbus to add the handle local echo to the commparams and everything works correctly and the echo is mentioned in the logs. Changes can be found here

Modified pymodbus logs

2024-10-25 15:28:59,550,550 DEBUG    [transport.py:324] recv: 0x1 0x3 0x2 0x22 0x0 0x2 0x65 0xb9 old_data:  addr=None
2024-10-25 15:28:59,550,550 DEBUG    [async_io.py:124] Handling data: 0x1 0x3 0x2 0x22 0x0 0x2 0x65 0xb9
2024-10-25 15:28:59,550,550 DEBUG    [base.py:92] Processing: 0x1 0x3 0x2 0x22 0x0 0x2 0x65 0xb9
2024-10-25 15:28:59,550,550 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:28:59,550,550 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:28:59,550,550 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (546,2)
2024-10-25 15:28:59,551,551 DEBUG    [context.py:131] validate: fc-[3] address-546: count-2
2024-10-25 15:28:59,551,551 DEBUG    [context.py:144] getValues: fc-[3] address-546: count-2
2024-10-25 15:28:59,551,551 DEBUG    [transport.py:381] send: 0x1 0x3 0x4 0x0 0x0 0x5b 0xbe 0x41 0x73
2024-10-25 15:28:59,624,624 DEBUG    [transport.py:302] b'\x01\x03\x04\x00\x00[\xbeAs' True
2024-10-25 15:28:59,624,624 DEBUG    [transport.py:305] recv skipping (local_echo): 0x1 0x3 0x4 0x0 0x0 0x5b 0xbe 0x41 0x73 addr=None
2024-10-25 15:28:59,625,625 DEBUG    [transport.py:324] recv: 0x1 old_data:  addr=None
2024-10-25 15:28:59,625,625 DEBUG    [async_io.py:124] Handling data: 0x1
2024-10-25 15:28:59,625,625 DEBUG    [base.py:92] Processing: 0x1
2024-10-25 15:28:59,625,625 DEBUG    [rtu.py:105] Short frame: 0x1 wait for more data
2024-10-25 15:28:59,643,643 DEBUG    [transport.py:302] b'' True
2024-10-25 15:28:59,643,643 DEBUG    [transport.py:324] recv: 0x3 0x3 0x10 0x0 0x2 0xc5 0x8a old_data:  addr=None
2024-10-25 15:28:59,644,644 DEBUG    [async_io.py:124] Handling data: 0x1 0x3 0x3 0x10 0x0 0x2 0xc5 0x8a
2024-10-25 15:28:59,644,644 DEBUG    [base.py:92] Processing: 0x1 0x3 0x3 0x10 0x0 0x2 0xc5 0x8a
2024-10-25 15:28:59,644,644 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:28:59,644,644 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:28:59,644,644 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (784,2)
2024-10-25 15:28:59,644,644 DEBUG    [context.py:131] validate: fc-[3] address-784: count-2
2024-10-25 15:28:59,644,644 DEBUG    [context.py:144] getValues: fc-[3] address-784: count-2
2024-10-25 15:28:59,644,644 DEBUG    [transport.py:381] send: 0x1 0x3 0x4 0x0 0x0 0x0 0x1 0x3b 0xf3
2024-10-25 15:28:59,672,672 DEBUG    [transport.py:302] b'\x01\x03\x04\x00\x00\x00\x01;\xf3' True
2024-10-25 15:28:59,672,672 DEBUG    [transport.py:314] recv skipping (partial local_echo): 0x1 0x3 0x4 0x0 0x0 0x0 0x1 addr=None
2024-10-25 15:28:59,687,687 DEBUG    [transport.py:302] b';\xf3' True
2024-10-25 15:28:59,687,687 DEBUG    [transport.py:305] recv skipping (local_echo): 0x3b 0xf3 addr=None
2024-10-25 15:28:59,687,687 DEBUG    [transport.py:324] recv: 0x1 old_data:  addr=None
2024-10-25 15:28:59,687,687 DEBUG    [async_io.py:124] Handling data: 0x1
2024-10-25 15:28:59,687,687 DEBUG    [base.py:92] Processing: 0x1
2024-10-25 15:28:59,687,687 DEBUG    [rtu.py:105] Short frame: 0x1 wait for more data
2024-10-25 15:28:59,704,704 DEBUG    [transport.py:302] b'' True
2024-10-25 15:28:59,704,704 DEBUG    [transport.py:324] recv: 0x3 0x2 0x22 0x0 0x2 0x65 0xb9 old_data:  addr=None
2024-10-25 15:28:59,704,704 DEBUG    [async_io.py:124] Handling data: 0x1 0x3 0x2 0x22 0x0 0x2 0x65 0xb9
2024-10-25 15:28:59,704,704 DEBUG    [base.py:92] Processing: 0x1 0x3 0x2 0x22 0x0 0x2 0x65 0xb9
2024-10-25 15:28:59,705,705 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:28:59,705,705 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:28:59,705,705 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (546,2)
2024-10-25 15:28:59,705,705 DEBUG    [context.py:131] validate: fc-[3] address-546: count-2
2024-10-25 15:28:59,705,705 DEBUG    [context.py:144] getValues: fc-[3] address-546: count-2
2024-10-25 15:28:59,705,705 DEBUG    [transport.py:381] send: 0x1 0x3 0x4 0x0 0x0 0x5b 0xbe 0x41 0x73
2024-10-25 15:28:59,720,720 DEBUG    [transport.py:302] b'\x01\x03\x04\x00\x00[\xbeAs' True
2024-10-25 15:28:59,720,720 DEBUG    [transport.py:305] recv skipping (local_echo): 0x1 0x3 0x4 0x0 0x0 0x5b 0xbe 0x41 0x73 addr=None
2024-10-25 15:28:59,752,752 DEBUG    [transport.py:302] b'' True
2024-10-25 15:28:59,752,752 DEBUG    [transport.py:324] recv: 0x1 0x3 0x2 0x33 0x0 0x1 0x75 0xbd old_data:  addr=None
2024-10-25 15:28:59,752,752 DEBUG    [async_io.py:124] Handling data: 0x1 0x3 0x2 0x33 0x0 0x1 0x75 0xbd
2024-10-25 15:28:59,753,753 DEBUG    [base.py:92] Processing: 0x1 0x3 0x2 0x33 0x0 0x1 0x75 0xbd
2024-10-25 15:28:59,753,753 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:28:59,753,753 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:28:59,753,753 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (563,1)
2024-10-25 15:28:59,753,753 DEBUG    [context.py:131] validate: fc-[3] address-563: count-1
2024-10-25 15:28:59,753,753 DEBUG    [context.py:144] getValues: fc-[3] address-563: count-1
2024-10-25 15:28:59,753,753 DEBUG    [transport.py:381] send: 0x1 0x3 0x2 0x0 0x0 0xb8 0x44
2024-10-25 15:28:59,768,768 DEBUG    [transport.py:302] b'\x01\x03\x02\x00\x00\xb8D' True
2024-10-25 15:28:59,769,769 DEBUG    [transport.py:305] recv skipping (local_echo): 0x1 0x3 0x2 0x0 0x0 0xb8 0x44 addr=None
2024-10-25 15:28:59,800,800 DEBUG    [transport.py:302] b'' True
2024-10-25 15:28:59,800,800 DEBUG    [transport.py:324] recv: 0x1 0x3 0x3 0xa 0x0 0x1 0xa4 0x4c old_data:  addr=None
2024-10-25 15:28:59,800,800 DEBUG    [async_io.py:124] Handling data: 0x1 0x3 0x3 0xa 0x0 0x1 0xa4 0x4c
2024-10-25 15:28:59,800,800 DEBUG    [base.py:92] Processing: 0x1 0x3 0x3 0xa 0x0 0x1 0xa4 0x4c
2024-10-25 15:28:59,800,800 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:28:59,800,800 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:28:59,801,801 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (778,1)
2024-10-25 15:28:59,801,801 DEBUG    [context.py:131] validate: fc-[3] address-778: count-1
2024-10-25 15:28:59,801,801 DEBUG    [context.py:144] getValues: fc-[3] address-778: count-1
2024-10-25 15:28:59,801,801 DEBUG    [transport.py:381] send: 0x1 0x3 0x2 0x13 0x88 0xb5 0x12
2024-10-25 15:28:59,830,830 DEBUG    [transport.py:302] b'\x01\x03\x02\x13\x88\xb5\x12' True
2024-10-25 15:28:59,830,830 DEBUG    [transport.py:314] recv skipping (partial local_echo): 0x1 0x3 0x2 0x13 0x88 0xb5 addr=None
2024-10-25 15:28:59,839,839 DEBUG    [transport.py:302] b'\x12' True
2024-10-25 15:28:59,839,839 DEBUG    [transport.py:305] recv skipping (local_echo): 0x12 addr=None
2024-10-25 15:28:59,850,850 DEBUG    [transport.py:302] b'' True
2024-10-25 15:28:59,850,850 DEBUG    [transport.py:324] recv: 0x1 0x3 0x3 0xf 0x0 0x1 0xb4 0x4d old_data:  addr=None
2024-10-25 15:28:59,850,850 DEBUG    [async_io.py:124] Handling data: 0x1 0x3 0x3 0xf 0x0 0x1 0xb4 0x4d
2024-10-25 15:28:59,850,850 DEBUG    [base.py:92] Processing: 0x1 0x3 0x3 0xf 0x0 0x1 0xb4 0x4d
2024-10-25 15:28:59,850,850 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:28:59,850,850 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:28:59,850,850 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (783,1)
2024-10-25 15:28:59,850,850 DEBUG    [context.py:131] validate: fc-[3] address-783: count-1
2024-10-25 15:28:59,850,850 DEBUG    [context.py:144] getValues: fc-[3] address-783: count-1
2024-10-25 15:28:59,850,850 DEBUG    [transport.py:381] send: 0x1 0x3 0x2 0x1 0xc7 0xf8 0x46
2024-10-25 15:28:59,943,943 DEBUG    [transport.py:302] b'\x01\x03\x02\x01\xc7\xf8F' True
2024-10-25 15:28:59,943,943 DEBUG    [transport.py:305] recv skipping (local_echo): 0x1 0x3 0x2 0x1 0xc7 0xf8 0x46 addr=None
2024-10-25 15:28:59,973,973 DEBUG    [transport.py:302] b'' True
2024-10-25 15:28:59,973,973 DEBUG    [transport.py:324] recv: 0x1 0x3 0x3 0x4 0x0 0x1 0xc5 0x8f old_data:  addr=None
2024-10-25 15:28:59,973,973 DEBUG    [async_io.py:124] Handling data: 0x1 0x3 0x3 0x4 0x0 0x1 0xc5 0x8f
2024-10-25 15:28:59,973,973 DEBUG    [base.py:92] Processing: 0x1 0x3 0x3 0x4 0x0 0x1 0xc5 0x8f
2024-10-25 15:28:59,973,973 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:28:59,973,973 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:28:59,974,974 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (772,1)
2024-10-25 15:28:59,974,974 DEBUG    [context.py:131] validate: fc-[3] address-772: count-1
2024-10-25 15:28:59,974,974 DEBUG    [context.py:144] getValues: fc-[3] address-772: count-1
2024-10-25 15:28:59,974,974 DEBUG    [transport.py:381] send: 0x1 0x3 0x2 0x9 0x23 0xff 0xcd
2024-10-25 15:29:00,020,020 DEBUG    [transport.py:302] b'\x01\x03\x02\t#\xff\xcd' True
2024-10-25 15:29:00,021,021 DEBUG    [transport.py:305] recv skipping (local_echo): 0x1 0x3 0x2 0x9 0x23 0xff 0xcd addr=None
2024-10-25 15:29:00,053,053 DEBUG    [transport.py:302] b'' True
2024-10-25 15:29:00,053,053 DEBUG    [transport.py:324] recv: 0x1 0x3 0x3 0x7 0x0 0x1 0x35 0x8f old_data:  addr=None
2024-10-25 15:29:00,054,054 DEBUG    [async_io.py:124] Handling data: 0x1 0x3 0x3 0x7 0x0 0x1 0x35 0x8f
2024-10-25 15:29:00,054,054 DEBUG    [base.py:92] Processing: 0x1 0x3 0x3 0x7 0x0 0x1 0x35 0x8f
2024-10-25 15:29:00,054,054 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:29:00,054,054 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:29:00,054,054 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (775,1)
2024-10-25 15:29:00,054,054 DEBUG    [context.py:131] validate: fc-[3] address-775: count-1
2024-10-25 15:29:00,054,054 DEBUG    [context.py:144] getValues: fc-[3] address-775: count-1
2024-10-25 15:29:00,054,054 DEBUG    [transport.py:381] send: 0x1 0x3 0x2 0x0 0x17 0xf8 0x4a
2024-10-25 15:29:00,077,077 INFO     [plc_simulator.py:423] Received sunspec
2024-10-25 15:29:00,087,087 DEBUG    [transport.py:302] b'\x01\x03\x02\x00\x17\xf8J' True
2024-10-25 15:29:00,087,087 DEBUG    [transport.py:305] recv skipping (local_echo): 0x1 0x3 0x2 0x0 0x17 0xf8 0x4a addr=None
2024-10-25 15:29:00,211,211 DEBUG    [transport.py:302] b'' True
2024-10-25 15:29:00,211,211 DEBUG    [transport.py:324] recv: 0x1 0x3 0x3 0x0 0x0 0x1 0x84 0x4e old_data:  addr=None
2024-10-25 15:29:00,211,211 DEBUG    [async_io.py:124] Handling data: 0x1 0x3 0x3 0x0 0x0 0x1 0x84 0x4e
2024-10-25 15:29:00,212,212 DEBUG    [base.py:92] Processing: 0x1 0x3 0x3 0x0 0x0 0x1 0x84 0x4e
2024-10-25 15:29:00,212,212 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:29:00,212,212 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:29:00,212,212 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (768,1)
2024-10-25 15:29:00,212,212 DEBUG    [context.py:131] validate: fc-[3] address-768: count-1
2024-10-25 15:29:00,212,212 DEBUG    [context.py:144] getValues: fc-[3] address-768: count-1
2024-10-25 15:29:00,212,212 DEBUG    [transport.py:381] send: 0x1 0x3 0x2 0xd 0x4d 0x7c 0xe1
2024-10-25 15:29:00,313,313 DEBUG    [transport.py:302] b'\x01\x03\x02\rM|\xe1' True
2024-10-25 15:29:00,313,313 DEBUG    [transport.py:305] recv skipping (local_echo): 0x1 0x3 0x2 0xd 0x4d 0x7c 0xe1 addr=None
2024-10-25 15:29:00,326,326 DEBUG    [transport.py:302] b'' True
2024-10-25 15:29:00,326,326 DEBUG    [transport.py:324] recv: 0x1 0x3 0x3 0x2 0x0 0x1 old_data:  addr=None
2024-10-25 15:29:00,326,326 DEBUG    [async_io.py:124] Handling data: 0x1 0x3 0x3 0x2 0x0 0x1
2024-10-25 15:29:00,326,326 DEBUG    [base.py:92] Processing: 0x1 0x3 0x3 0x2 0x0 0x1
2024-10-25 15:29:00,326,326 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:29:00,340,340 DEBUG    [transport.py:302] b'' True
2024-10-25 15:29:00,340,340 DEBUG    [transport.py:324] recv: 0x25 0x8e old_data:  addr=None
2024-10-25 15:29:00,340,340 DEBUG    [async_io.py:124] Handling data: 0x1 0x3 0x3 0x2 0x0 0x1 0x25 0x8e
2024-10-25 15:29:00,340,340 DEBUG    [base.py:92] Processing: 0x1 0x3 0x3 0x2 0x0 0x1 0x25 0x8e
2024-10-25 15:29:00,341,341 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:29:00,341,341 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:29:00,341,341 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (770,1)
2024-10-25 15:29:00,341,341 DEBUG    [context.py:131] validate: fc-[3] address-770: count-1
2024-10-25 15:29:00,341,341 DEBUG    [context.py:144] getValues: fc-[3] address-770: count-1
2024-10-25 15:29:00,341,341 DEBUG    [transport.py:381] send: 0x1 0x3 0x2 0x0 0x23 0xf9 0x9d
2024-10-25 15:29:00,358,358 DEBUG    [transport.py:302] b'\x01\x03\x02\x00#\xf9\x9d' True
2024-10-25 15:29:00,358,358 DEBUG    [transport.py:305] recv skipping (local_echo): 0x1 0x3 0x2 0x0 0x23 0xf9 0x9d addr=None
2024-10-25 15:29:00,373,373 DEBUG    [transport.py:302] b'' True
2024-10-25 15:29:00,373,373 DEBUG    [transport.py:324] recv: 0x1 0x3 0x3 0x1 old_data:  addr=None
2024-10-25 15:29:00,374,374 DEBUG    [async_io.py:124] Handling data: 0x1 0x3 0x3 0x1
2024-10-25 15:29:00,374,374 DEBUG    [base.py:92] Processing: 0x1 0x3 0x3 0x1
2024-10-25 15:29:00,374,374 DEBUG    [rtu.py:115] Frame - not ready
2024-10-25 15:29:00,388,388 DEBUG    [transport.py:302] b'' True
2024-10-25 15:29:00,388,388 DEBUG    [transport.py:324] recv: 0x0 0x1 0xd5 0x8e old_data:  addr=None
2024-10-25 15:29:00,388,388 DEBUG    [async_io.py:124] Handling data: 0x1 0x3 0x3 0x1 0x0 0x1 0xd5 0x8e
2024-10-25 15:29:00,389,389 DEBUG    [base.py:92] Processing: 0x1 0x3 0x3 0x1 0x0 0x1 0xd5 0x8e
2024-10-25 15:29:00,389,389 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:29:00,389,389 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:29:00,389,389 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (769,1)
2024-10-25 15:29:00,389,389 DEBUG    [context.py:131] validate: fc-[3] address-769: count-1
2024-10-25 15:29:00,389,389 DEBUG    [context.py:144] getValues: fc-[3] address-769: count-1
2024-10-25 15:29:00,389,389 DEBUG    [transport.py:381] send: 0x1 0x3 0x2 0xc 0x84 0xbd 0x27
2024-10-25 15:29:00,406,406 DEBUG    [transport.py:302] b"\x01\x03\x02\x0c\x84\xbd'" True
2024-10-25 15:29:00,406,406 DEBUG    [transport.py:305] recv skipping (local_echo): 0x1 0x3 0x2 0xc 0x84 0xbd 0x27 addr=None
2024-10-25 15:29:00,421,421 DEBUG    [transport.py:302] b'' True
2024-10-25 15:29:00,421,421 DEBUG    [transport.py:324] recv: 0x1 0x3 0x3 old_data:  addr=None
2024-10-25 15:29:00,421,421 DEBUG    [async_io.py:124] Handling data: 0x1 0x3 0x3
2024-10-25 15:29:00,422,422 DEBUG    [base.py:92] Processing: 0x1 0x3 0x3
2024-10-25 15:29:00,422,422 DEBUG    [rtu.py:105] Short frame: 0x1 0x3 0x3 wait for more data
2024-10-25 15:29:00,436,436 DEBUG    [transport.py:302] b'' True
2024-10-25 15:29:00,436,436 DEBUG    [transport.py:324] recv: 0x3 0x0 0x1 0x74 0x4e old_data:  addr=None
2024-10-25 15:29:00,436,436 DEBUG    [async_io.py:124] Handling data: 0x1 0x3 0x3 0x3 0x0 0x1 0x74 0x4e
2024-10-25 15:29:00,436,436 DEBUG    [base.py:92] Processing: 0x1 0x3 0x3 0x3 0x0 0x1 0x74 0x4e
2024-10-25 15:29:00,436,436 DEBUG    [decoders.py:103] decode PDU for 3
2024-10-25 15:29:00,436,436 DEBUG    [base.py:102] Frame advanced, resetting header!!
2024-10-25 15:29:00,437,437 INFO     [inverter_simulator.py:64] Trace called ReadHoldingRegistersRequest (771,1)
2024-10-25 15:29:00,437,437 DEBUG    [context.py:131] validate: fc-[3] address-771: count-1
2024-10-25 15:29:00,437,437 DEBUG    [context.py:144] getValues: fc-[3] address-771: count-1
2024-10-25 15:29:00,437,437 DEBUG    [transport.py:381] send: 0x1 0x3 0x2 0x0 0x22 0x38 0x5d
2024-10-25 15:29:00,453,453 DEBUG    [transport.py:302] b'\x01\x03\x02\x00"8]' True
2024-10-25 15:29:00,453,453 DEBUG    [transport.py:305] recv skipping (local_echo): 0x1 0x3 0x2 0x0 0x22 0x38 0x5d addr=None

This is how I start the serialserver

 context = ModbusSlaveContext(di=self.inverter.di, co=self.inverter.co, hr=self.inverter.hr, ir=self.inverter.ir, zero_mode=self.inverter.zero_mode)
 self.context = ModbusServerContext(slaves=context, single=True)
 port = os.environ["rs485_port"] if "rs485_port" in os.environ else "/dev/ttyUSB1"
 self._thread = threading.Thread(target=StartSerialServer, kwargs={'context':self.context, 'port':port, 'baudrate':9600, 'handle_local_echo': True, 'request_tracer':lambda request, *addr: trace(self.stats, request, *addr)})
 self._thread.start()

So is this a bug? Or am doing something wrong with the serialserver?

Answered by janiversen

Oct 25, 2024

Your patch looks correct, it is very likely we never really considered local echo for the server.

Please submit your changes as a patch, so that other can benefit from your work.

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janiversen · 2024-10-25T13:58:03Z

janiversen
Oct 25, 2024
Maintainer

Your patch looks correct, it is very likely we never really considered local echo for the server.

Please submit your changes as a patch, so that other can benefit from your work.

2 replies

jorisplusplus Oct 25, 2024
Author

Thank you for the quick response!
I have opened a pull request for the changes

janiversen Oct 25, 2024
Maintainer

Merged

janiversen · 2024-10-25T13:59:44Z

janiversen
Oct 25, 2024
Maintainer

To be honest, we think of the server as a test tool, so a number of the "real life" problems do not pass our minds, however thanks to contributors like you they get solved,

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handle local echo with serialserver not working? #2414

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