Connection settings reference
Open via Settings > Connection.
Each connection slot can be configured independently. Connection 1 is always enabled; additional connections can be enabled or disabled.
Common settings
Setting |
Type |
Default |
Description |
|---|---|---|---|
Enabled |
Checkbox |
On (conn. 1), Off (others) |
Enables or disables this connection. Cannot be disabled for connection 1 |
Protocol |
|
|
Transport type |
Timeout |
Integer (ms) |
|
Time to wait for a response before reporting a timeout error |
Persistent connection |
Checkbox |
Off |
When on, the connection stays open between poll cycles. Reconnects on error. TCP only |
TCP settings
Visible when Protocol is TCP.
Setting |
Type |
Example |
Description |
|---|---|---|---|
IP address |
IPv4 string |
|
Address of the Modbus TCP slave |
Port |
Integer 1–65535 |
|
TCP port. The default Modbus port is |
RTU settings
Visible when Protocol is RTU.
Setting |
Type |
Example |
Description |
|---|---|---|---|
Serial port |
String |
|
Local serial port name |
Baud rate |
Integer |
|
Serial speed in bits per second. Must match the device |
Parity |
|
|
Must match the device |
Data bits |
|
|
Number of data bits per frame. Must match the device |
Stop bits |
|
|
Number of stop bits per frame. Must match the device |