Eaton SWIRE-GW-MB, Manual, Page: 15 / 67

11
07/09 MN03407002Z-EN
2 Installation
This section tells you how to set up the station addresses and
protocol parameters for MODBUS RTU.
MODBUS RTU station
addresses and protocol
parameters To be able to use the gateway SWIRE-GW-MB within a
MODBUS RTU network, its station address, parity and baud
rate must be set before use. These settings are made using
DIP switches 2 to 10 on the device’s underside.
DIP switch 1 is not assigned with a function.
The MODBUS RTU station address for the SWIRE-GW-MB is
set in binary format with DIP switches 6 to 10, providing a
total of 32 addresses from 0 to 31. Valid addresses for the
SWIRE-GW-MB are 1 to 31.
The baud rate of the MODBUS RTU network is set with DIP
switches 2 and 3.
Possible baud rates, in kbits/s, are 9.6, 19.2, 38.4 and 57.6.
The corresponding DIP switch settings are are shown below.
Table 1: Setting the baud rate
The parity is set with DIP switches 4 and 5, as shown in the
table below.
Transmission rate
[kBit/s] DIP switch 3 DIP switch 2
9.6 OFF OFF
19.2 OFF ON
38.4 ON OFF
57.6 ON ON