![]() Perle IOLAN Device Servers are the solution. Network Administrations need a way to connect these Modbus serial devices to Modbus/TCP or Modbus/UDP compliant hosts over Ethernet. However, there is valuable equipment installed that have serial modbus COM ports. ![]() Equipment with an Ethernet COM port and support for Modbus/TCP can be used on standard Ethernet networks providing interconnection over greater distances and with more flexibility. As technology evolved, the Industrial Automation industry created the Modbus/TCP protocol to enable direct attachment of equipment over Ethernet. Modbus masters poll modbus slaves to send and retrieve information. The Modbus protocol contains device (host) addressing and enables communication between multiple entities on the same serial (i.e., RS485) line.
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