[inputs.modbus] Error in plugin: EOF - On additional modbus inputs

Telegraf
1

I’m trying to add another modbus input to my telegraf, but I got EOF Error.

This is my conf file

root@3a95fc7aa27e:/etc/telegraf# cat fepasa-reco.conf
[[inputs.modbus]]
  name = "FEPASA-RECON"
  slave_id = 35
  timeout = "10s"
  controller = "tcp://192.168.43.40:502"
  input_registers = [
    { name = "ACurr", byte_order = "AB",   data_type = "FLOAT32-IEEE", scale=1.0,  address = [11]},
  ]

And this the output of the test.

root@3a95fc7aa27e:/etc/telegraf# telegraf -config fepasa-reco.conf -input-filter modbus -test
2022-01-14T16:44:09Z I! Starting Telegraf 1.20.2
2022-01-14T16:44:09Z E! [inputs.modbus] Error in plugin: EOF
2022-01-14T16:44:09Z E! [telegraf] Error running agent: input plugins recorded 1 errors

I got the same results if I add the modbus plugin into telegraf.conf.

But if I leave input register black, no EOF error at all.

root@3a95fc7aa27e:/etc/telegraf# cat fepasa-reco.conf
[[inputs.modbus]]
  name = "FEPASA-RECON"
  slave_id = 35
  timeout = "10s"
  controller = "tcp://192.168.43.40:502"
  input_registers = [
  ]
root@3a95fc7aa27e:/etc/telegraf# telegraf -config fepasa-reco.conf -input-filter modbus -test
2022-01-14T16:51:35Z I! Starting Telegraf 1.20.2

Thanks in advance for the help!!!

2

Hello @bgondell,
Does this thread help at all?

Thank you

3

Hi Anaisdg!!
Now it’s working, wasnt working because was a communication problem with the mbus device (external to telegraf).
The log output of EOF is just confusing and I tought that was because a bad conf file.
Now, as comms with the device works, also does the telegraf conf file.
Thanks for your answer!