© Softing Industrial Automation GmbH 29
Chapter 5 - Machine Settings
5.2.3 Modbus Settings
The Modbus Settings view allows to configure the IP address as well as details of the Modbus controller to be
connected.
Note
This description only applies to the edgeGate and uaGate MB products!
Note
The edgeGate product allows to define more than one Modbus connection.
The following settings are available:
Machine Access
Connection Name
Connection name to be used
Special characters are not supported.
IPv4 Address
IPv4 address of the PLC to which a connection should be established
Port
Port number of the PLC to which a connection should be established
Unit-Id
Slave Address of the PLC to which a connection should be established
Polling interval [ms]
Time in milliseconds between individual read requests to the PLC
This setting is used to limit the traffic between the device and the PLC. The polling interval also defines the
lower limit of the OPC UA sampling interval. This value has to be be greater or equal to 50 ms.
Start Address
Start address setting for address association
Some Modbus controllers start address association for connected devices at 0, other start at 1.
o Start Address 0
Radio button for setting the start address to begin at 0 for the Modbus controller
o Start Address 1
Radio button for setting the start address to begin at 1 for the Modbus controller
Swap Setting
Setting for sequence of data within frames
o Byte Swap
Check box for swapping Bytes within a Word (16 bits)
o Word Swap
Check box for swapping Words within a Double Word (32 bits)
o Dword Swap
Check box for swapping Double Words within a Double Float (64 bits)
Functioncode Setting
Setting of function codes for writing of data
o Write Single Register
Check box for using Modbus function code Write Single Register 06 instead of function code Write
Multiple Registers 16 for writing of values
o Write Single Coil
Check box for using Modbus function code Write Single Coil 05 instead of function code Write Multiple
Coils 15 for writing of values
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