BX COM port - Cimrex panel
The serial interface of the BX controller can also be used as Modbus slave. In this example, a panel from the company Beijers is connected. Further information on the panel can be found under http://www.beijerelectronics.de.
Necessary components
- 1 x BX3100
- 1 x Cimrex 12
- any Bus Terminals (any, since no Bus Terminals are used in the example)
RS232 cable
|
BX3100 COM 2 / RS485 |
Cimrex 12 RS232 |
|---|---|
|
7 |
2 |
|
8 |
3 |
|
9 |
5 |
RS485* cable
|
BX3100 COM 2 / RS 485 |
Cimrex 12 RS485 |
|---|---|
|
1 |
2 -3 |
|
6 |
15 -16 |
*) active termination resistor is not required for short cable lengths (≤ 5 m) and low baud rates (≤19200 baud)
Download sample program in ST for the BX: (sample file)
Download sample with Cimrex panel: (sample file)
The example requires the ModbusRTU, TcComPortBC and TcBaseBX libraries.
- Baud rate 9600,n,8,1 D
- Cimrex 12
modbus com port 64.prx
cimrex12.cpa