ModbusTcpClient: broken pipe error

[sara moghadam]

I have this code to connect to my sunny boy inverter.

"""

from pymodbus.client.sync import ModbusTcpClient

client = ModbusTcpClient(ip,

                         timeout=config.timeout,

                         RetryOnEmpty=True,

                         retries=3,

                         port=502)

print ("Connect")

client.connect()

time.sleep(5)

rr= client.read_input_registers(address=30775,  count=2, unit=3)

"""

but I'm getting a broken pipe error as follow:

""""""""""""""

2019-06-09 06:43:33,042 MainThread      DEBUG    transaction    :111      Current transaction state - IDLE

2019-06-09 06:43:33,042 MainThread      DEBUG    transaction    :116      Running transaction 1

2019-06-09 06:43:33,042 MainThread      DEBUG    transaction    :215      SEND: 0x0 0x1 0x0 0x0 0x0 0x6 0x1 0x4 0x78 0x37 0x0 0x2

2019-06-09 06:43:33,043 MainThread      DEBUG    sync           :73       New Transaction state 'SENDING'

2019-06-09 06:43:33,043 MainThread      DEBUG    transaction    :234      Transaction failed. ([Errno 32] Broken pipe) 

2019-06-09 06:43:33,043 MainThread      DEBUG    socket_framer  :147      Processing: 

2019-06-09 06:43:33,043 MainThread      DEBUG    transaction    :390      Getting transaction 1

2019-06-09 06:43:33,044 MainThread      DEBUG    transaction    :189      Changing transaction state from 'PROCESSING REPLY' to 'TRANSACTION_COMPLETE

""""""""""""""""""

I have tried both python 2.7 and 3.7 and modbus 2.1.0. I have also tried other uid and addresses on the same cluster, but the same error for all. I appreciate any suggestions and help on this.

thanks

[sanju dhoomakethu]

This generally happens when the socket is closed on the slave side (i.e the inverter ). See if you are reading on the correct port or try using a higher value for read timeout.

--
You received this message because you are subscribed to the Google Groups "pymodbus" group.
To unsubscribe from this group and stop receiving emails from it, send an email to pymodbus+u...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/pymodbus/a47a9dbf-0133-4333-a31b-78339961e9a9%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.