Beijer Electronics AN-BEI-E2-038 - Manual (Page 2)

APPLICATION NOTE AN‐BEI‐E2‐038 Date: 15/02/12
AN‐BEI‐E2‐038 Modbus RTU Control and Register Mapping 2
RJ45 Data Connection Pin Configuration:
No Connection
No Connection
0 Volt
Int bus / Remote Keypad / PC Connection ‐
Int bus / Remote Keypad / PC Connection +
+24 Volt Remote Keypad Power Supply
RS 485‐ Modbus RTU
RS 485+ Modbus RTU
Data Format is Fixed at:
1 start bit, 8 data bits
1 Stop bit, No parity
Baud rate and address set in P‐36
Typical MODBUS configuration: