Commissioning
Leuze electronic
OGS 600
50
TNT
35/7-2
4
V
8
Commissioning
8.1
Communication protocol for serial interfaces (UART)
The following default settings apply for the RS232, RS485 and RS422 serial interfaces.
Table 8.1:
Factory settings for the communication protocol of serial interfaces
8.1.1
RS485/RS422 node address
The node address is set via index 70
UART Node No
(see chapter 8.2 "Object directory for
serial interfaces (UART)"). It is recommended to change the default address if, in the case
of RS485/RS422, multiple devices are connected to the bus.
If a device is reset to the factory settings, the default address (1) is restored. This avoids an
address collision.
8.1.2
Error handling
The following communication errors are intercepted and/or returned:
• Too few characters:
after timeout (1.6ms), the receive buffer is cleared -> no error telegram.
• Too many characters: cannot be detected. The valid characters are processed (CRC
check) and the remaining characters are discarded.
• Incorrect CRC: error telegram 8112
h
• Error during reception (parity error, ...): error telegram 8113
h
• Incorrect identifier: error telegram 8111
h
• Maximum time taken for the sensor to respond to a query: 1.2ms
Baud rate [bit/s]
115200
Parity
Odd
Data bits
8
Stop bits
1
Node number
1
Minimum response time
Can be set for RS485; see the parameter
RS485Delay
(index 149).
