NORRISEAL-WELLMARK
5
REVISION 2021-5-14
Modbus TCP/IP Connections
An additional device is required to convert the output Modbus RTU via RS485
into Modbus RTU via TCP/IP, such as a Tiny Gateway TGW-715 or TGW-718.
Tiny Gateway Connections
Adding a Tiny Gateway or other Serial to Ethernet device server allows the
DigiUltra controller to communicate via Modbus TCP/IP.
To connect a Tiny Gateway device such as a TGW-715 or TGW-718, see the
wiring diagram below.
Critical Device Settings
•
DHCP (Enabled/Disabled)
•
IP Address
•
Default Gateway
•
Subnet Mask
•
Baud Rate
–
Baud rate set on device server for serial communication
must match the DigiUltra baud rate setting.
