COM port - overview
The library includes function blocks that enable data exchange between the BXxxxx Bus Controller and a remote partner. The maximum COM buffer is 512 bytes for both directions.
Function blocks
|
Name |
Description |
|---|---|
|
Opens a serial connection to a partner. | |
|
Closes a serial connection to a partner. |
Functions
|
Name |
Description |
|---|---|
|
Reading data from the COM buffer | |
|
Writing data into the COM buffer |
Supported baud rates
|
Baud rate [baud] |
COM 1 |
COM 2 |
|---|---|---|
|
300 |
NO |
YES |
|
600 |
NO |
YES |
|
1200 |
NO |
YES |
|
2400 |
NO |
YES |
|
4800 |
NO |
YES |
|
9600 |
YES |
YES |
|
19200 |
YES |
YES |
|
38400 |
YES |
YES |
|
57600 |
YES |
YES |
|
115200 |
NO |
YES |
Further helpful function blocks can be found in TcComPortBX.lbx.
- Function block for using ComLib, ModbusRTU etc. for the BX COM ports
- Function block for communication with the BK8x00 Bus Couplers
- Function block for emulation of a BK8x00 slave