iSMA-B-MG-IP User Manual
www.ismacontrolli.com
DMP260en | 1st Issue rev. 6 | 05/2022
page 14 of 29
5.2 Modbus Settings
5.2.1 Setting Modbus Address
To determine the address on the Modbus network, the device has two rotary switches, S1
and S2, located on the top panel of the device.
It is possible to set the device address from 0 to 99.
The formula for setting the address is as follows:
Address = S2
•
10 + S1,
where S1 and S2 are values of switches.
For example:
Figure 8. Setting Modbus address with rotary switches
Switches set as in figure above will set the device address to 11.
5.2.2 Setting Baud Rate
Transmission baud rate is determined by the S3 DIP switch (sections 1, 2 and 3) in
accordance with the following table:
1
2
3
Baud Rate
Off (0)
Off (0)
Off (0)
Defined by the user in the register
Off (0)
Off (0)
On (1)
76800
Off (0)
On (1)
Off (0)
4800
Off (0)
On (1)
On (1)
9600
On (1)
Off (0)
Off (0)
19200
On (1)
Off (0)
On (1)
38400
On (1)
On (1)
Off (0)
57600
On (1)
On (1)
On (1)
115200 (factory set)
Table 5. Setting baud rate
