Modbus TCP broken pipe error

[CristianAgata]

Hi everybody,
I'm going mad with this error in a modbus TCP application.
I describe the project. Two inverter an ABB and a Huawei the first one works perfectly the second after about 2 days stops works and give me "broken pipe error".
Reading in the forum I have already flagged "permanent connection" change the polling time (growing now 20 sec) and change the timeout (decrease).
On other Huawei with the system works fine.
Any others ideas?
Thanks and best regards Cristian

[Daniel]

What is the pool interval, timeout and amount of registers? Any other errors?

[CristianAgata]

What is the pool interval, timeout and amount of registers? Any other errors?

Hi Daniel,
pool interval : 20 sec
timeout : 3 sec
Number of registers : 23
Other errors 'Timeout', 'slave or server are busy' or 'Broken pipe'
Thanks Cristian

[Daniel]

3sec x 23 = 69sec. Set pool interval around this and restart inverter.

[CristianAgata]

3sec x 23 = 69sec. Set pool interval around this and restart inverter.

ok and I let you know

[CristianAgata]

3sec x 23 = 69sec. Set pool interval around this and restart inverter.

Hi it seems works but it has a lot of error of timeout (I think it could be a register), is there a way to understand which?
Anyway at the moment I have not the broken pipe error.
Best regards Cristian

[Daniel]

Try Read test one by one.