User`s manual
ioLogik E1200 Series  Using ioSearch 
4-15 
Dynamic IP Assignments for Cellular RTUs 
For most cellular solutions, each remote modem as well as the central SCADA server are assigned static public 
IPs when establishing bi-directional communication. Yet cellular network carriers charge higher monthly fees 
for static, public IPs than dynamic, private ones. Moxa’s ioLogik W5300 series and patented Active OPC Server 
allow users to implement dynamic IP assignments for the RTUs. The ioLogik W5300 can automatically establish 
communications with the Active OPC Server using a fixed IP, and the Active OPC Server will receive and register 
the ioLogik W5300’s IP address and receive or record tag updates accordingly. 










