ABB 07CR41 Operating Manual page 99

Advant Controller AC 31 / Issued: 01.99
40 or 50 series
®
MODBUS
mode
ASCII mode:
PASSIVE MODE
Figure 5: Communications protocols for 40 and 50 series devices
MODBUS protocol
RS232 line
Figure 6: Point to point connection with a PC
40 or 50
series
Figure 7: Network connection with a PC
40 or 50
40 or 50
series series
MODBUS protocol
RS485 line
Figure 8: Network connection between basic units, exchange of PLC data
Programming
mode:
ACTIVE MODE
40 or 50
series
MODBUS protocol
RS485 line
40 or 50
series
40 or 50
series
6 – 5 Communication
40 or 50
series
3