XPS-E
26 / 36
5.2 Communication Status
In the status of the confirmation telegram of the service
data_exchange the status of the serial interface is encoded as
follows:
Illustration 8:
Byte Definition of Communication Status
0
RS_PORT_TX_DATA
Data are being transmitted.
1
Modbus_TIMEOUT
2
RS_PORT_PARITY_ERROR
Parity error of receive data of serial interface.
3
RS_PORT_RX_DATA_AVAIL
XPS-E has data in receive buffer.
4
XOFF_CTS_
XOFF was received or CTS is inactive.
5
OUTPUT_DATA_LEN_FAILURE
user data length exceeds maximal data_exchange length minus 3 (on
part of PROFIBUS)
6
RS_PORT_RX_OVERFLOW
Receive buffer overflow
7
XOFF_TOMEOUT
No XON received after XOFF- Timeout. Sending process was restar-
ted.
Status and Error Messages