BECKHOFF BK7300 - Manual (Page 22)

MODBUS
18 BK7300
You want to check whether the correct baud rate has been set.
1.
Switch off the coupler's 24 V supply
2. Remove all the terminals except the KL9010 end terminal
3. Set the x10 address selection switch to 0 and the x1 switch to 3
4. Switch on the coupler's 24 V supply again
The coupler indicates the set baud rate via the LEDs.
3 x flashes of the I/O RUN and I/O ERR LEDs means 9600 baud
WD,RX,TX,ERROR LEDs
1 2 3 1 2 3 1 2 3 1 2 3
Example
I/O Run, I/O ERR
Now you want to set a new rate of 1200 baud
5.
Switch off the coupler's 24 V supply
6. Set the x10 address selection switch to 3 and the x1 switch to 6
7. Switch on the coupler's 24 V supply again
The coupler indicates the new set baud rate via the LEDs.
6 x flashes of the I/O RUN and I/O ERR LEDs means 1200 baud
Incorrect Entry If a parameter is set that the Modbus coupler does not recognize, this is
indicated by a constant even flashing of the I/O RUN and I/O ERR LEDs,
while all the other LEDs remain off.
KS2000 The parameterization settings can also be carried out with the KS2000
software.
Parameterization Table
Parameter x 10 x 1 Default Parameter value
0 1..9 - Indicates the parameter of the x 10 function
1 RTU mode Modbus 1
2
1
ASCII mode
1 8 data bits, no parity one stop bit
2 8 data bits even Parity one stop bit
3 8 data bits odd Parity one stop bit
4 7 data bits even Parity one stop bit
5 7 data bits odd Parity one stop bit
6 one stop bit
7 2 stop bits
8 8 data bits, no parity two stop bits
9 8 data bits even Parity two stop bits
10 8 data bits odd Parity two stop bits
11 7 data bits even Parity two stop bits
Frame 2
12
1
7 data bits odd Parity two stop bits
Baud rate 1 38400 baud
2 19200 baud
3 9600 baud
4 4800 baud
5 2400 baud
6 1200 baud
7 600 baud
8 300 baud
3
9
3
150 baud
sEnd of Frame Time 4 0..9 0 In ms for RTU mode (0 dependent on the baud
rate)
In seconds for ASCII mode (0 EOF time switched
off)
Watchdog 100 ms 5 0..9 0 Watchdog x 100 ms
Watchdog 1000 ms 6 0..9 1 Watchdog x 1000 ms
Factory setting 9 9