Data Sheet for Product
9
Siemens A6V11478118_en_c
Smart Infrastructure 2021-01-20
Communication
Modbus RTU communication
Item Specification
Address range 1...247 (255 = default)
Baudrate 9˙600...57˙600
Format Modbus RTU
Line termination selectable via DIP switch 9
Hardware RS485
Default configuration 9600E1 (9600 baud rate, 1 stop bit, even parity)
Cable types
Interface Specification
Signal lines
(Inputs/
outputs)
Screw terminals for wire and stranded conductors:
● Wire: 0.5…2.5 mm
2
NOTICE! Use copper conductors only.
Cable
bushings
● QBM97.. screwed connectors
– 2 x cable glands screwed for cable ∅ 3…6 mm (wrench size 15 mm)
– 2 x cable glands screwed for cable ∅ 5…10 mm (wrench size
20 mm)
● QBM97.. with M12 plugged and screwed connectors
– 1 x M12 socket for plugged Modbus communication and power
supply
– 2 x cable glands screwed for cable ∅ 3…6 mm (wrench size 15 mm)
– 1 x cable glands screwed for cable ∅ 5…10 mm (wrench size
20 mm)
Modbus 2 or 3-wire, twisted, shielded, if >3 m
Wire lengths
Interface Wire lengths
Signal wiring Max. 50 m
Modbus Max. 100 m