[Error 391]

Hello everyone!

 

Theme up, I have faced the same problem. I'm guessing, it's beause of bad sectors in flash memory - images download stops at sector 11 of flash memory, then returns error 391. Is it fixabe?

PLC is V1040-T20B.

 

Regards.

[Com Serial TX]

Hello!

 

 

When you go online in UniLogic do you see any information within the buffers tag?

Yes, it filled with 0-s (after reset), and holds last value received from port in first element of buffer. By the way, it is always last byte of send message, i. e. CRC.

 

If possible please send your program in for review to support@unitronics.com.

No problem, I have sent it to support@unitronics.com.

 

Regards.

[Com Serial TX]

Thank you for answer.

 

Buffer tag is unique for Rx.

I'm using ComPump (PC prog.) to comprise messages, guess they are similar with Hercules. So, I send message from PC and want to see it in PLC's tag, but it won't work  . Message contains ASCII-symbols, for examle: <STX>blabla123<ETX><CRC>.

 

Regards.

[Com Serial TX]

Hello!

 

One more question about Rx\Tx. I'm using Rx box and output "B" of it fills buffer tag with only 1 byte in the current plc cycle, even incoming message consists of 2, 3, etc. Could you please help me with advice?

 

Regards.