Receive buffer overflow
Bit 3 “BUF_F” of the Status word signals that the number of bytes in the receive buffer exceeds a certain value.
Set the desired number of bytes in the following CoE parameters:
Channel | CoE object | Parameter | ||
|---|---|---|---|---|
1 | 8000hex | COM Settings Ch.1 | 1Ahex | Rx buffer full notification |
2 | 8010hex | COM Settings Ch.2 | 1Ahex | Rx buffer full notification |
Possible values
In the factory setting the parameter is set to 864 bytes.
From firmware 04 onwards, the receive buffer is larger than the parameter in the factory setting.
This means that in the factory setting, “BUF_F” warns of an impending receive buffer overflow.
Up to firmware 03, the parameter in the factory setting corresponds to the size of the receive buffer.
This means that in the factory setting, “BUF_F” signals that the receive buffer has already overflowed.
