Proline Promass E 300 Modbus RS485
Electrical connection
Hauser
41
Status input
1
2
3
A0028764
19
Connection example for status input
1
Automation system with status output (e.g. PLC)
2
Power supply
3
Transmitter
7.5
Hardware settings
7.5.1
Setting the device address
The device address must always be configured for a Modbus slave. The valid device
addresses are in the range from 1 to 247. Each address may only be assigned once in a
Modbus RS485 network. If an address is not configured correctly, the measuring device is
not recognized by the Modbus master. All measuring devices are delivered from the
factory with the device address 247 and with the "software addressing" address mode.
Hardware addressing
1.
1
2
3
4
5
6
7
8
128
64
32
16
8
4
2
1
Modbus addr
ess
A0029634
Set the desired device address using the DIP switches in the connection compartment.
2.
On
Off
2
3
1
4
A0029633
To switch addressing from software addressing to hardware addressing: set the DIP
switch to
On
.
The change of device address takes effect after 10 seconds.
